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National Hurricane Center - Tropical Weather Discussion (Atlantic)
Updated: 1 hour 14 min ago

NHC Atlantic Tropical Weather Discussion

4 hours 52 min ago

000
AXNT20 KNHC 211751
TWDAT

Tropical Weather Discussion
NWS National Hurricane Center Miami FL
1251 PM EST Tue Nov 21 2017

Tropical Weather Discussion for North America, Central America
Gulf of Mexico, Caribbean Sea, northern sections of South
America, and Atlantic Ocean to the African coast from the
Equator to 32N. The following information is based on satellite
imagery, weather observations, radar and meteorological analysis.

Based on 1200 UTC surface analysis and satellite imagery through
1645 UTC.

...SPECIAL FEATURES...
Low pressure is forecast to develop over the central Gulf of
Mexico on Wednesday, while high pressure builds SE from the
central US. The pressure gradient between these two features will
produce near gale to gale force northerly winds S of 21N W of
95W. The gale force wind field is expected to persist until mid
Thursday morning...diminishing into strong to near gale force
strength by Thursday afternoon across portions of the SW Gulf of
Mexico. See the latest NWS High Seas Forecast under AWIPS/WMO
headers MIAHSFAT2/FZNT02 KNHC for more details.

A 1003 mb low centered near 32N25W is producing gale force winds
across the Meteo-France forecast area of Irving as confirmed by a
morning scatterometer pass indicating 35 kt winds from 29N to 33N
between 22W and 25W. These winds are forecast to diminish below
gale force by 0000 UTC tonight. Please refer to the Meteo- France
forecast found at www.meteofrance.com/previsions- meteo-
marine/bulletin/grandlarge/metarea2 for more details.

...ITCZ/MONSOON TROUGH...
The monsoon trough extends from the African coast near 11N15W to
09N20W. The Intertropical Convergence Zone axis extends from
09N20W to 08N35W to 08N45W to the South America Coast near
06N57W. Scattered moderate convection is from 02N to 13N between
10W and 31W, and from 03N to 07N between 31W and 44W.

...DISCUSSION...

GULF OF MEXICO...
An upper trough over the central Gulf of Mexico is supporting a
1013 mb surface low near 28N85.5W. A cold front extends from the
low to near 23N88W. A warm front extends from the low across
central Florida. A pre-frontal trough extends from 27N83W to
23N86W. This system is supporting a cluster of moderate
convection with embedded thunderstorms N of 25N E of 86W. A
surface trough extends from 23N95W to 20N96W. Scattered showers
are within 60 nm of the trough axis. Over the next 24 hours the
low over the NE gulf will cross N Florida. Another piece of energy
at the mid to upper levels will enter the NW Gulf which will
develop another low over the central Gulf. A cold front will
accompany this low. Gale force winds are expected behind this
front over the SW Gulf. Please see the special features section
for more details.

CARIBBEAN SEA...

A surface trough extends from 18N76W to 11N79W supporting
scattered thunderstorms N of 17N between 73W and 77W. SW flow in
the mid to upper levels and deep moisture support patches of
scattered thunderstorms over the SW Caribbean. Mainly gentle to
moderate winds cover the western Caribbean. Moderate easterly
winds cover the eastern Caribbean. Over the next 24 hours the
trough will move west with thunderstorms.

...HISPANIOLA...
Deep moisture in mid to upper level SW flow continues to support
showers and isolated thunderstorms over the region. This pattern
will likely continue through tonight, with a possible drying
trend by late Wednesday as a mid to upper level ridge builds over
the area.

ATLANTIC OCEAN...

A cold front enters the area of discussion near 31N55W and extends
to 29N60W where it transitions to a stationary front to near
28N70W, then transitions again to a warm front to central
Florida. Scattered showers are within 60 nm of the front E of 76W.
Scattered moderate convection is within 90 nm north of the front
W of 76W. A surface trough extends from 22N66W to 18N69W. This
trough is interacting with an upper level trough to the west to
support scattered showers and thunderstorms from 20N to 25N
between 63W and 76W. A dissipating 1023 mb area of high pressure
is centered near 30N51W. Another cold front enters the area of
discussion near 32N24W to 27N25W to 25N30W where it transitions to
a stationary front to a 1012 mb low near 24N38W to 18N50W to
21N63W. Showers and isolated thunderstorms are within 240 nm SE of
the cold front. Gale force winds are occurring near the cold
front N of 29N. Please see the special features section for more
details. Scattered showers are within 90 nm of either side of the
low and stationary front. Fresh to strong NE winds are within 300
nm N of the low and stationary front. Over the next 24 hours a new
area of low pressure will develop along the warm front over the W
Atlantic and will move NE. The low over the central Atlantic will
drift SW.

For additional information please visit
http://www.hurricanes.gov/marine

$$
Latto
Categories: Weather

NHC Atlantic Tropical Weather Discussion

12 hours 10 min ago

000
AXNT20 KNHC 211034
TWDAT

Tropical Weather Discussion
NWS National Hurricane Center Miami FL
533 AM EST Tue Nov 21 2017

Tropical Weather Discussion for North America, Central America
Gulf of Mexico, Caribbean Sea, northern sections of South
America, and Atlantic Ocean to the African coast from the
Equator to 32N. The following information is based on satellite
imagery, weather observations, radar and meteorological analysis.

Based on 0600 UTC surface analysis and satellite imagery through
0945 UTC.

...SPECIAL FEATURES...
Cyclogenesis is expected to occur late Wednesday into Wednesday
night across portions of the Gulf of Mexico producing near gale to
gale force northerly winds S of 22N W of 93W. The gale force wind
field is expected to persist through late Wednesday night...
diminishing into strong to near gale force strength by Thursday
morning across portions of the SW Gulf of Mexico. See the latest
NWS High Seas Forecast under AWIPS/WMO headers MIAHSFAT2/FZNT02
KNHC for more details.

...ITCZ/MONSOON TROUGH...
The monsoon trough extends from the African coast near 11N16W to
09N19W. The Intertropical Convergence Zone axis extends from
09N19W to 08N33W to 06N42W to 05N52W. Scattered moderate
convection is from 02N-11N between 08W-37W.

...DISCUSSION...

GULF OF MEXICO...
A middle to upper level trough is noted on water vapor imagery
over the western Gulf with axis extending from 31N91W to a base
over the SW Gulf waters near 21N94W. The trough supports a surface
trough extending from 28N86W to 24N87W to 22N93W to 20N95W.
Scattered showers and isolated tstms are occurring within 90 nm
either side of the boundary. Otherwise...generally gentle to
moderate E-SE winds prevail across the basin this morning on the
southwestern periphery of a surface ridge anchored by a 1027 mb
high centered offshore of the Carolinas near 36N73W. The
troughing moving over the basin will strengthen the current
surface troughing across the eastern waters and a frontal wave
across the western waters through early Wednesday with fresh to
strong northerly winds expected to materialize by Wednesday
afternoon into the evening. Global models indicate cyclogenesis
across central and eastern portions of the basin Wednesday night.

CARIBBEAN SEA...
Southwesterly flow aloft prevails over the western Caribbean with
a ribbon of mid-level energy stretching from over the Windward
Passage region W-SW to over portions of Central America in the
vicinity of Honduras and El Salvador. This mid-level energy is
supporting a surface trough analyzed from 12N78W to 19N75W.
Widely scattered showers and isolated tstms are occurring N of 15N
between 70W-80W. A portion of this activity extends N of the
Windward Passage region in the Atlc waters. Otherwise...moderate
trades are noted E of 77W and moderate to occasional fresh NE
winds are occurring W of 77W. This pattern is forecast to persist
through Thursday night.

...HISPANIOLA...
A surface trough lies to the SW of the island with widely
scattered showers and isolated tstms occurring generally W of
the island this morning across the Windward Passage region. The
surface troughing will be slow to move and dissipate through
Wednesday...so little change is expected through mid-week.

ATLANTIC OCEAN...
A cold front extends into the discussion area near 32N55W and
continues SW to 29N61W becoming stationary to the NW Bahamas and
offshore waters of southern Florida. Isolated showers are
occurring within 60 nm either side of the front. To the N of the
front...surface ridging prevails anchored by a 1027 mb high
centered offshore of the Carolinas near 36N73W. SE of the
front...mid-level shortwave troughing is in the vicinity of
24N66W and supports a surface trough analyzed from 22N68W to
28N62W. Scattered showers and isolated tstms are occurring from
20N-28N between 57W-70W...and from 20N-23N between 70W-77W.
Farther east...another middle to upper level trough is noted in
the vicinity of 25N39W supporting a 1012 mb low centered near
24N38W with the associated stationary front extending SW from the
low to 19N50W to 22N61W. Scattered showers and isolated tstms are
occurring within 75 nm either side of the front. This low links
up with a 1007 mb low centered near 32N27W by way of a cold front
extending from 32N27W to 24N34W then stationary into the 1012 mb
low. Scattered showers and isolated tstms are occurring generally
N of 25N between 16W-37W.

For additional information please visit
http://www.hurricanes.gov/marine

$$
HUFFMAN

Categories: Weather

NHC Atlantic Tropical Weather Discussion

Mon, 11/20/2017 - 23:27

000
AXNT20 KNHC 210526
TWDAT

Tropical Weather Discussion
NWS National Hurricane Center Miami FL
1226 AM EST Tue Nov 21 2017

Tropical Weather Discussion for North America, Central America
Gulf of Mexico, Caribbean Sea, northern sections of South
America, and Atlantic Ocean to the African coast from the
Equator to 32N. The following information is based on satellite
imagery, weather observations, radar and meteorological analysis.

Based on 0000 UTC surface analysis and satellite imagery through
0445 UTC.

...ITCZ/MONSOON TROUGH...
The monsoon trough extends from the African coast near 11N15W to
08N27W. The Intertropical Convergence Zone axis extends from
08N27W to 08N35W to 09N42W to 08N52W to 12N62W. Scattered
moderate convection is from 02N-10N between 09W-37W.

...DISCUSSION...

GULF OF MEXICO...
A middle to upper level trough is noted on water vapor imagery
over the western Gulf with axis extending from 31N93W to a base
over the SW Gulf waters near 21N96W. The trough supports a
weakening and dissipating stationary front extending from the
Florida Straits near 25N80W to 22N90W to 20N96W. Widely scattered
showers and isolated tstms are occurring within 90 nm either side
of the front...and across much of the central Gulf waters between
86W-92W. Otherwise...generally gentle to moderate easterly winds
prevail across the basin this evening on the southwestern
periphery of a surface ridge anchored by a 1025 mb high centered
across coastal Carolina near 35N76W. The troughing moving over the
basin will induce surface troughing across the eastern waters and
a frontal wave across the western waters early Wednesday with
fresh to strong northerly winds expected to materialize by
Wednesday afternoon into the evening hours. Global models indicate
cyclogenesis across central and eastern portions of the basin
Wednesday night into Thursday.

CARIBBEAN SEA...
Southwesterly flow aloft prevails over the western Caribbean with
a ribbon of mid-level energy stretching from over the Windward
Passage region W-SW to over portions of Central America in the
vicinity of Honduras and El Salvador. This mid-level energy is
supporting a pair of surface troughs...one analyzed from 11N78W to
20N73W and the other analyzed from 09N83W to 17N82W. Widely
scattered showers and isolated tstms are occurring N of 16N
between 68W-79W...and S of 17N between 78W-85W. A portion of this
activity extends NE of Hispaniola into the Atlc waters.
Otherwise...moderate trades are noted E of 77W and moderate to
occasional fresh NE winds occurring W of 77W. This pattern is
forecast to persist through Thursday night.

...HISPANIOLA...
Located between a pair of surface troughs...widely scattered
showers and isolated tstms are occurring across the island this
evening. The surface troughing will be slow to move and dissipate
through Wednesday...so little change is expected through mid-week.

ATLANTIC OCEAN...
A cold front extends into the discussion area near 32N62W and
continues SW to 28N70W becoming stationary to the NW Bahamas and
Florida Straits. Isolated showers are occurring within 60 nm
either side of the front. To the N of the front...surface ridging
prevails anchored by a 1025 mb high centered across coastal
Carolina near 35N76W. SE of the front...mid-level shortwave
troughing is in the vicinity of 25N66W and supports a surface
trough analyzed from eastern Hispaniola near 19N69W to 25N65W.
Scattered showers and isolated tstms are occurring from 19N-27N
between 56W-73W. Farther east...another middle to upper level
trough is noted in the vicinity of 26N39W supporting a 1008 mb low
centered near 32N29W with the associated cold front extending SW
from the low to 24N40W to 19N51W becoming stationary to 21N58W.
Scattered showers and isolated tstms are occurring N of 25N
between 18W-37W...and within 120 nm either side of the front. To
the N of the front a surface ridge prevails anchored by a 1021 mb
high centered near 31N50W.

For additional information please visit
http://www.hurricanes.gov/marine

$$
HUFFMAN

Categories: Weather

NHC Atlantic Tropical Weather Discussion

Mon, 11/20/2017 - 18:03

000
AXNT20 KNHC 210003
TWDAT

Tropical Weather Discussion
NWS National Hurricane Center Miami FL
703 PM EST Mon Nov 20 2017

Tropical Weather Discussion for North America, Central America
Gulf of Mexico, Caribbean Sea, northern sections of South
America, and Atlantic Ocean to the African coast from the
Equator to 32N. The following information is based on satellite
imagery, weather observations, radar and meteorological analysis.

Based on 1800 UTC surface analysis and satellite imagery through
2345 UTC.

...ITCZ/MONSOON TROUGH...

The monsoon trough extends from the African coast near 10N15W to
08N18W to 07N21W. The Intertropical Convergence Zone axis extends
from 07N21W to 06N35W to 05N52W. Scattered moderate convection is
from 0N to 10N E of 36W.

...DISCUSSION...

GULF OF MEXICO...

A stationary front continues to weaken from the Straits of Florida
SW to the southern-central Gulf of Mexico near 22N90W to the Bay
of Campeche near 18N94W. Deep layer dry air prevails across the
basin as indicated by CIRA LPW and GOES-16 water vapor imagery,
which only allows for isolated showers within 75 nm either side of
the front. Moderate northerlies are in the northern vicinity of
the front while lighter easterlies to northeasterlies are
elsewhere across the Gulf N of the front. Broken to overcast skies
are in the NW Gulf associated with the remnants of a former
surface trough. Radar data show isolated showers in that region. A
surface trough, remnant of the front will develop later tonight.
This trough will evolve to a center of low pressure over the NE
basin Tuesday evening, which will support showers and tstms in the
region as well as inland northern Florida.

CARIBBEAN SEA...

CIRA LPW and GOES-16 water vapor imagery show deep layered dry
air across the basin, except for the northern-central Caribbean
where diffluent flow in the NE periphery of a ridge continue to
support scattered showers and tstms. These showers cover the
regions of the Windward Passage, Hispaniola and southern adjacent
waters to 16N. Isolated showers are across Puerto Rico and
Jamaica as well as the SE Caribbean, including the southern
Windward Islands. In the central basin, just S of Jamaica, a 1008
mb low lacking convection is centered near 15N76W. The low will
weaken in to a trough that will continue to move W the next two
days. Showers across the north-central basin will shift towards
the NE Caribbean tonight as the upper ridge moves E along
northern S America.

...HISPANIOLA...

Scattered to isolated showers prevail across the island and
adjacent waters continuing through Tuesday morning. These showers will
shift towards the NE Caribbean tonight as the upper ridge that
supports it moves E along northern S America.

ATLANTIC OCEAN...

A cold front extends from 30N64W SW to 26N75W where it transitions
to a dissipating stationary front that continues to the Florida
Straits into the Bay of Campeche in the Gulf of Mexico. Ahead of
the front, a surface trough extends from 25N64W to northern
Dominican Republic supporting scattered to isolated showers S of
26N between 57W and 70W. A second cold front extends from 31N30W
to 24N40W to 19N50W supporting scattered showers N of 24N between
22W and 39W. Otherwise, high pressure centered near 32N49W
dominates the remainder central Atlantic.

For additional information please visit
http://www.hurricanes.gov/marine

$$
Ramos
Categories: Weather

NHC Atlantic Tropical Weather Discussion

Mon, 11/20/2017 - 11:36

000
AXNT20 KNHC 201736
TWDAT

Tropical Weather Discussion
NWS National Hurricane Center Miami FL
1236 PM EST Mon Nov 20 2017

Tropical Weather Discussion for North America, Central America
Gulf of Mexico, Caribbean Sea, northern sections of South
America, and Atlantic Ocean to the African coast from the
Equator to 32N. The following information is based on satellite
imagery, weather observations, radar and meteorological analysis.

Based on 1200 UTC surface analysis and satellite imagery through
1630 UTC.

...ITCZ/MONSOON TROUGH...

The monsoon trough extends from the African coast near 11N15W to
08N22W. The Intertropical Convergence Zone axis extends from
08N22W to 07N40W to to the South American coast near 06N57W.
Scattered moderate convection is from 02N to 10N between 10W and
35W.

...DISCUSSION...

GULF OF MEXICO...

A cold front extends from the Florida Straits near 24N82W to
22N90W where it transitions to a stationary front to 21N93W to
18N94W. Mainly moderate NE winds are occurring over the Gulf to
the north of this front. The only exception is associated with a
line of thunderstorms over the NW Gulf that as of 1630 UTC
extended from 28.5N95.5W to 25N97W, with short duration fresh to
locally strong NW winds just west of the line, as indicated over
the past couple of hours by buoy 44020. Over the next 24 hours
the front will dissipate. A weak pressure pattern will develop
over the basin by midday Tuesday which will result in light winds.

CARIBBEAN SEA...

A broad 1008 mb low is centered over the central Caribbean near
14N77W. A surface trough extends NE from the low to near 17N71W.
Scattered thunderstorms are from 16N to 18N between 66W and 75W.
Mainly moderate NE winds are occurring over the Caribbean west of
the low, except locally fresh over the Lee of Cuba. Moderate E to
SE winds are east of the low. Over the next 24 hours the low will
drift SE with convection persisting over the NE portion of the
low.

...HISPANIOLA...

Scattered showers and thunderstorms are occurring over the area
due to a surface trough over the Dominican Republic. These showers
and thunderstorms will continue through Tuesday. Localized
flooding is possible during this time.

ATLANTIC OCEAN...

As of 1500 UTC, a cold front is over the W Atlantic from 31N66W
to near 25N80W. A pre-frontal trough extends from 28N69W to
23N73W. Scattered showers are within 90 nm of the front N of 26N.
Moderate to fresh NE winds are NW of the front. A surface trough
extends from 24N65W to 18N70W. Scattered showers and isolated
thunderstorms are within 150 nm of either side of the trough axis.
Farther east, a cold front enters the area of discussion near
31N31W to 25N40W to 21N51W. The combination of the front and an
upper trough to the west supports showers N of the front between
30W and 40W. Over the next 24 hours the front will weaken between
Florida and the Bahamas. The portion of the cold front east of
the Bahamas will continue to move eastward. A new area of low
pressure is expected to develop Tuesday morning along the cold
front currently over the central Atlantic.

For additional information please visit
http://www.hurricanes.gov/marine

$$
Latto
Categories: Weather

NHC Atlantic Tropical Weather Discussion

Mon, 11/20/2017 - 04:30

000
AXNT20 KNHC 201030
TWDAT

Tropical Weather Discussion
NWS National Hurricane Center Miami FL
530 AM EST Mon Nov 20 2017

Tropical Weather Discussion for North America, Central America
Gulf of Mexico, Caribbean Sea, northern sections of South
America, and Atlantic Ocean to the African coast from the
Equator to 32N. The following information is based on satellite
imagery, weather observations, radar and meteorological analysis.

Based on 0600 UTC surface analysis and satellite imagery through
1015 UTC.

...SPECIAL FEATURE...

Strong high pressure behind a cold front over the Gulf of Mexico
is supporting gale force winds S of 21N W of the front. These
winds are forecast to continue through Monday morning. Wave
heights of 8 to 12 ft are expected associated with these winds.
See the latest high seas forecast under AWIPS/WMO headers
HSFAT2/FZNT02 for more details.

...ITCZ/MONSOON TROUGH...

The monsoon trough extends from the African coast near 09N13W to
07N20W. The Intertropical Convergence Zone axis extends from
07N20W to 06N34W to 08N42W to the South American coast near
07N58W. Scattered moderate to isolated strong convection is from
03N-08N between 10W-30W. Isolated moderate convection is from
08N-12N between 33W-40W.

...DISCUSSION...

GULF OF MEXICO...

As of 0900 UTC, a cold front extends from S Florida near 26N80W
to 23N88W. A stationary front continues to 21N94W to the Bay of
Campeche near 18N94W. Scattered showers are within 15 nm of the
front. A gale is over the SW Gulf S of 21N within 60 nm of the
coast of Mexico. See above. 15-25 kt N winds are over the
remainder of the Gulf. In the upper levels, zonal flow is noted.
Strong subsidence is over the Gulf except along the Texas and
Louisiana coasts. Expect over the next 24 hours for the front to
stall from S Florida to the SW Bay of Campeche, and then begin to
slowly retrograde back N.

CARIBBEAN SEA...

A 1008 mb low is centered over the central Caribbean near
15N73W. A surface trough extends NE from the low through the Mona
Passage to the Atlantic near 23N66W. Scattered moderate convection
is near the low from 12N-18N between 68W-71W, to include Aruba
and Curacao. Scattered showers are elsewhere within 180 nm of the
trough axis, to include Puerto Rico and the Virgin Islands. In the
upper levels, an upper level trough is over the NW Caribbean with
axis from E Cuba near 20N74W to the Gulf of Honduras near 16N89W.
Upper level diffluence E of the trough is enhancing the showers
and convection over the central Caribbean Sea. Expect the area of
convection to drift W and persist for the next 24 hours.

...HISPANIOLA...

Scattered showers are over Hispaniola, and will continue through
Tuesday. Expect convection to build over Hispaniola in the
afternoon and evening hours during maximum heating. Localized
flooding is also possible during this time.

ATLANTIC OCEAN...

As of 0900 UTC, a cold front is over the W Atlantic from 31N72W
to near Homestead Florida at 26N80W. Scattered showers are within
60 nm of the front. A 1020 mb high is centered over the central
Atlantic near 32N50W producing fair weather. A cold front is over
the E Atlantic from 31N32W to 26N40W to 21N54W. Isolated moderate
convection is within 120 nm of the front. A surface trough is
just E of the Canary Islands from 30N12W to 25N16W. Scattered
showers are over the Canary Islands. Of note in the upper levels,
an upper level trough is over the W Atlantic enhancing the W
Atlantic front. Another upper level trough is over the central
Atlantic with axis from 31N46W to 23N53W. Upper level diffluence
is E of this trough. In addition, a small upper level low is
centered near the Canary Islands at 30N13W.

For additional information please visit
http://www.hurricanes.gov/marine

$$
Formosa

Categories: Weather

NHC Atlantic Tropical Weather Discussion

Sun, 11/19/2017 - 23:50

000
AXNT20 KNHC 200550
TWDAT

Tropical Weather Discussion
NWS National Hurricane Center Miami FL
1250 AM EST Mon Nov 20 2017

Tropical Weather Discussion for North America, Central America
Gulf of Mexico, Caribbean Sea, northern sections of South
America, and Atlantic Ocean to the African coast from the
Equator to 32N. The following information is based on satellite
imagery, weather observations, radar and meteorological analysis.

Based on 0000 UTC surface analysis and satellite imagery through
0515 UTC.

...SPECIAL FEATURE...

Strong high pressure building behind a cold front over the Gulf
of Mexico is supporting gale force winds S of 21N W of the front.
These winds are forecast to continue through Monday morning. Wave
heights of 8 to 12 ft are expected associated with these winds.
See the latest high seas forecast under AWIPS/WMO headers
HSFAT2/FZNT02 for more details.

...ITCZ/MONSOON TROUGH...

The monsoon trough extends from the African coast near 10N14W to
07N21W. The Intertropical Convergence Zone axis extends from
07N21W to 05N36W to the South American coast near 07N58W.
Clusters of scattered moderate convection are from 02N-09N between
20W-31W, and from 06N-10N between 31W-48W.

...DISCUSSION...

GULF OF MEXICO...

As of 0300 UTC, a cold front extends from S Florida near 26N82W to
22N93W to the Bay of Campeche near 19N96W. A gale is over the SW
Gulf S of 21N W of the front. See above. This front is void of
precipitation. Elsewhere, radar imagery shows isolated showers
are over the SE Gulf from 24N-25N between 82W-84W. In the upper
levels, zonal flow is noted. Strong subsidence is over the Gulf
except along the Texas and Louisiana coasts. Expect over the next
24 hours for the front to stall from S Florida to the SW Bay of
Campeche, and then begin to slowly retrograde back N.

CARIBBEAN SEA...

A 1008 mb low is centered over the central Caribbean near
15N72W. A surface trough extends NE from the low through the Mona
Passage to the Atlantic near 22N66W. Scattered moderate to
isolated strong convection is near the low from 12N-18N between
68W-71W, to include Aruba and Curacao. Scattered showers are
elsewhere within 180 nm of the trough axis, to include Puerto
Rico and the Virgin Islands. In the upper levels, an upper level
trough is over the NW Caribbean with axis from E Cuba near 20N74W
to the Gulf of Honduras near 16N89W. Upper level diffluence E of
the trough is enhancing the showers and convection over the
central Caribbean Sea. Expect the area of convection to drift W
and persist for the next 24 hours.

...HISPANIOLA...

Scattered showers are over Hispaniola, and will continue through
Tuesday. Expect convection to build over Hispaniola in the
afternoon and evening hours during maximum heating. Localized
flooding is also possible during this time.

ATLANTIC OCEAN...

As of 0300 UTC, a cold front is over the W Atlantic from 31N74W
to near West Palm Beach Florida. Scattered showers are within 60
nm of the front. A 1020 mb high is centered over the central
Atlantic near 34N53W producing fair weather. A 1008 mb low is
centered over the E Atlantic near 31N34W. A cold front extends SW
from the low to 27N40W to 22N54W. Isolated moderate convection is
within 120 nm of the front. A surface trough is just e of the
Canary Islands from 30N11W to 25N16W. Scattered showers are over
the Canary Islands. Of note in the upper levels, an upper level
trough is over the W Atlantic enhancing the W Atlantic front.
Another upper level trough is over the central Atlantic with axis
from 31N46W to 23N53W. Upper level diffluence is E of this trough.
In addition a small upper level low is centered near the Canary
Islands at 30N13W.

For additional information please visit
http://www.hurricanes.gov/marine

$$
Formosa

Categories: Weather

NHC Atlantic Tropical Weather Discussion

Sun, 11/19/2017 - 18:03

000
AXNT20 KNHC 200002
TWDAT

Tropical Weather Discussion
NWS National Hurricane Center Miami FL
702 PM EST Sun Nov 19 2017

Tropical Weather Discussion for North America, Central America
Gulf of Mexico, Caribbean Sea, northern sections of South
America, and Atlantic Ocean to the African coast from the
Equator to 32N. The following information is based on satellite
imagery, weather observations, radar and meteorological analysis.

Based on 1800 UTC surface analysis and satellite imagery through
2345 UTC.

...SPECIAL FEATURE...

Strong high pressure building behind a cold front over the Gulf
of Mexico is supporting frequent wind gusts to gale force S of
23N W of the front. These winds are forecast to continue through
Monday morning. Wave heights of 8 to 12 ft are expected associated
with these winds. See the latest high seas forecast under
AWIPS/WMO headers HSFAT2/FZNT02 for more details.

...ITCZ/MONSOON TROUGH...

The monsoon trough extends from the African coast near 09N14W to
06N20W. The Intertropical Convergence Zone axis extends from
06N20W to 05N40W to the South American coast near 08N60W.
Scattered heavy showers and tstms are from 02N to 09N between 20W
and 43W.

...DISCUSSION...

GULF OF MEXICO...

A middle to upper level trough with axis over the E CONUS and base
over the NE Gulf supports a cold front extending from central
Florida near 27N82W to the central Gulf near 24N90W to the Bay of
Campeche near 19N96W. Near gale to gale force winds are in the SW
basin behind the front continuing through Monday morning. Please
refer to the special features section for more details. Fresh to
strong northerly winds are elsewhere N of the front while light to
gentle northerlies are ahead of the front in the SE basin. CIRA
LPW and GOES-16 water vapor imagery continue to show deep layered
dry air across most of the basin supporting clear skies. However,
shallow moisture support isolated showers within 45 nm either
side of the front. The front will move over south Florida tonight
through Monday morning then it will stall before dissipating
Tuesday. A surface trough, remnant of the front will develop a
center of low pressure that is forecast to move to the NE basin
Tuesday morning with showers.

CARIBBEAN SEA...

CIRA LPW and GOES-16 water vapor imagery show deep layered dry
air across the western Caribbean, which is supporting mainly clear
skies W of 76W. A 1008 mb low prevails SE of Jamaica near 16N75W
with associated trough extending ENE towards 17N67W. An upper
level ridge covers the remainder half of the basin with
diffluent flow that continue to support scattered heavy showers
and isolated tstms between 64W and 72W, including Puerto Rico and
extending E to the Virgin Islands. Scattered to isolated showers
are across Hispaniola and the Mona Passage associated with the
area of low pressure along with the upper level diffluent
environment. The center of low pressure is forecast to move over
the SW Caribbean where it will weaken into a surface trough Monday
night. A low or surface trough is forecast to develop across
Hispaniola supporting showers in the island and north-central
Caribbean waters through Tuesday.

...HISPANIOLA...

Scattered to isolated showers prevail across the island and
adjacent waters continuing through Monday night into Tuesday
morning. These showers will be associated with a new center of low
pressure or trough forecast to develop over the region Monday.

ATLANTIC OCEAN...

A cold front is moving across the far NW SW N Atlc waters
extending from 30N78W to near Cape Canaveral, Florida into the
Gulf of Mexico. Fresh to strong NW winds are NW of the front. A
1020 mb high centered near 33N56W dominates the remainder of the
western Atlantic waters N of 23N W of 49W. In the central Atlc,
another cold front extends from 30N36W to 25N45W to 21N54W
supporting scattered showers and isolated tstms N of 24N between
30W and 47W. A surface trough extends from the tail of this front
to N of Puerto Rico and support similar convection for the region
S of 22N between 57W and 68W. High pressure centered near 39N14W
dominates the remainder of the eastern Atlantic.

For additional information please visit
http://www.hurricanes.gov/marine

$$
Ramos
Categories: Weather

NHC Atlantic Tropical Weather Discussion

Sun, 11/19/2017 - 11:11

000
AXNT20 KNHC 191711
TWDAT

Tropical Weather Discussion
NWS National Hurricane Center Miami FL
1211 PM EST Sun Nov 19 2017

Tropical Weather Discussion for North America, Central America
Gulf of Mexico, Caribbean Sea, northern sections of South
America, and Atlantic Ocean to the African coast from the
Equator to 32N. The following information is based on satellite
imagery, weather observations, radar and meteorological analysis.

Based on 1200 UTC surface analysis and satellite imagery through
1545 UTC.

...SPECIAL FEATURE...

Strong high pressure building behind a cold front over the Gulf
of Mexico will support frequent wind gusts to gale force over a
small area N of 26N W of 94W into the early afternoon. Sustained
winds to gale force are expected S of 25N behind the front until
mid Monday morning. Wave heights of 8 to 13 ft are expected
associated with these winds. See the latest high seas forecast
under AWIPS/WMO headers HSFAT2/FZNT02 for more details.

...ITCZ/MONSOON TROUGH...

The monsoon trough extends from the African coast near 10N14W to
08N20W. The Intertropical Convergence Zone axis extends from
08N20W to 08N40W to the South American coast near 07N59W.
Isolated moderate convection is from 02N to 08N between 10W and
40W.

...DISCUSSION...

GULF OF MEXICO...

A cold front extends from 30N83W to 26N90W to 21N98W. Gale force
northerly winds and seas of 8 to 13 ft are occurring NW of the
front over a portion of the western Gulf. Please refer to the
special features section for more details. Fresh to strong
northerly winds are elsewhere NW of the front. Moderate winds are
occurring S of the front. Scattered showers are within 60 nm of
either side of the front. Over the next 24 hours the front will
move quickly across the remainder of the Gulf basin. Gale force
winds will continue S of 25N NW of the front until mid Monday
morning. Winds will decrease to below 20 kt over the remainder of
the Gulf by late Monday morning.

CARIBBEAN SEA...

A 1009 mb low is centered near 14N72W. One surface trough extends
from 17N76W to the low center. A second surface trough extends
from the low to 12N75W. This system is interacting with an upper
trough to its west to support a cluster of moderate to strong
convection from 14N to 18N between 66W and 72W. The eastern
portion of this convection is also being supported by a surface
trough that extends from the Atlantic to Puerto Rico, to near
17N68W. Mainly moderate winds are occurring over the Caribbean
basin, except for light to gentle winds S of 15n between 72W and
80W. Over the next 24 hours the low will drift NE and weaken.
Convection will continue between the low and the NE Caribbean.

...HISPANIOLA...

Scattered showers and isolated thunderstorms will persist over the
southern and western portion of the island through Monday, as low
pressure and a surface trough persist south of the region.

ATLANTIC OCEAN...

A cold front is exiting the coast of N Florida. Fresh to strong SW
winds and scattered showers are within 60 nm SE of the front.
Fresh to strong NW winds are NW of the front. A 1020 mb high
centered near 34N59W dominates the remainder of the western
Atlantic waters W of 65W. A cold front enters the area of
discussion near 31N38W to 27N43W where it transitions to a
stationary front that extends to 21N58W. A surface trough then
extends from 21N58W to Puerto Rico. A broad area of cloud cover
and showers are within 60 NM SE and 300 nm NW of the front E of
51W. Scattered showers and isolated thunderstorms are within 90 nm
of either side of the front and trough W of 51W. High pressure
centered near 39N17W dominates the remainder of the central and
eastern Atlantic. Over the next 24 hours the cold front will sweep
SE and reach from 31N67W to the Florida Straits by mid Monday
morning. The front over the central Atlantic will begin to
dissipate.

For additional information please visit
http://www.hurricanes.gov/marine

$$
Latto
Categories: Weather

NHC Atlantic Tropical Weather Discussion

Sun, 11/19/2017 - 04:45

000
AXNT20 KNHC 191045
TWDAT

Tropical Weather Discussion
NWS National Hurricane Center Miami FL
545 AM EST Sun Nov 19 2017

Tropical Weather Discussion for North America, Central America
Gulf of Mexico, Caribbean Sea, northern sections of South
America, and Atlantic Ocean to the African coast from the
Equator to 32N. The following information is based on satellite
imagery, weather observations, radar and meteorological analysis.

Based on 0600 UTC surface analysis and satellite imagery through
1015 UTC.

...SPECIAL FEATURE...

As of 0900 UTC, a fast moving cold front over the N Gulf of
Mexico extends from the Florida Panhandle near 30N84W, to the NW
Gulf near 24N96W, to N of Tampico Mexico near 22.5N98W. Gale
force northerly winds are W of 90W and N of front, with seas to 8
ft. The cold front in 24 hours will extend from S Florida to the
SW Bay of Campeche. Gale force winds will persist for the next 24
hours over portions of the Gulf. See the latest high seas
forecast under AWIPS/WMO headers HSFAT2/FZNT02 for more details.

...ITCZ/MONSOON TROUGH...

The monsoon trough extends from the African coast near 08N13W to
07N20W. The Intertropical Convergence Zone axis extends from
07N20W to 06N40W to the South American coast near 07N58W.
Scattered moderate convection is from 03N-05N between 14W-21W,
and from 04N-07N between 31W-36W.

...DISCUSSION...

GULF OF MEXICO...

A cold front and gale are over the N Gulf of Mexico. See above.
Scattered showers are within 15 nm of the front. Radar imagery
also shows the remainder of the Gulf is void of precipitation.
5-15 kt southerly winds are S of the front. Mostly fair weather is
S of the front. In the upper levels, zonal flow is noted with
strong subsidence. Expect in 24 hours for the front to extend from
S Florida to the SW Bay of Campeche. Gale force winds will then
be S of 21N W of front.

CARIBBEAN SEA...

A 1007 mb low is centered near the N tip of Colombia at 13.5N71W.
A surface trough extends NE from the low through the Mona Passage
to the Atlantic near 21N64W. Scattered moderate to strong
convection is near the low from 12N-17N between 68W-72W, to
include Aruba and Curacao. Scattered showers are elsewhere within
360 nm E of the trough axis, to include Puerto Rico and the Virgin
Islands. In the upper levels, an upper level trough is over the
NW Caribbean with axis from E Cuba near 20N74W to the Gulf of
Honduras near 16N89W. Upper level diffluence E of the trough is
enhancing the showers and convection over the central Caribbean
Sea. Expect the area of convection to drift E and persist for the
next 48 hours.

...HISPANIOLA...

Scattered showers are over E Hispaniola, and will continue
through Monday. Expect convection to be heaviest over E
Hispaniola in the afternoon and evening hours during maximum
heating. Localized flooding is also possible during this time.

ATLANTIC OCEAN...

A 1018 mb high is centered over the W Atlantic near 34N62W
producing fair weather. A stationary front is over the central
Atlantic from 31N39W to 25N50W, to 21N59W. Scattered moderate
convection is within 180 nm of the front. A 1018 mb high is
centered over the E Atlantic near 30N27W also producing fair
weather. Of note in the upper levels, a large upper level trough
is over the W Atlantic enhancing the central Atlantic with upper
level diffluence. Another upper level trough is over the far E
Atlantic and Morocco.

For additional information please visit
http://www.hurricanes.gov/marine

$$
Formosa

Categories: Weather

NHC Atlantic Tropical Weather Discussion

Sat, 11/18/2017 - 23:44

000
AXNT20 KNHC 190544
TWDAT

Tropical Weather Discussion
NWS National Hurricane Center Miami FL
1244 AM EST Sun Nov 19 2017

Tropical Weather Discussion for North America, Central America
Gulf of Mexico, Caribbean Sea, northern sections of South
America, and Atlantic Ocean to the African coast from the
Equator to 32N. The following information is based on satellite
imagery, weather observations, radar and meteorological analysis.

Based on 0000 UTC surface analysis and satellite imagery through
0515 UTC.

...SPECIAL FEATURE...

A cold front over the NW Gulf of Mexico extends from SE Louisiana
near 30N90W to Brownsville Texas near 26N97W. Gale force northerly
winds are W of 90W and N of front, with seas to 8 ft. The cold
front will move across the remainder of the Gulf through Monday.
Gale force winds are forecast to persist for the next 36 hours
over portions of the Gulf. See the latest high seas forecast
under AWIPS/WMO headers HSFAT2/FZNT02 for more details.

...ITCZ/MONSOON TROUGH...

The monsoon trough extends from the African coast near 08N13W to
06N22W. The Intertropical Convergence Zone axis extends from
06N22W to 06N45W to the South American coast near 08N59W.
Scattered moderate convection is from 03N-06N between 17W-21W,
and from 04N-07N between 27W-32W.

...DISCUSSION...

GULF OF MEXICO...

A cold front and gale are over the NW Gulf of Mexico. See above.
Radar imagery shows scattered showers are within 15 nm of the
front over Louisiana, and mostly void of precipitation over the
Gulf of Mexico. 5-15 kt southerly winds are S of the front. Mostly
fair weather is S of the front. In the upper levels, zonal flow is
noted with strong subsidence. Expect in 24 hours for the front to
extend from central Florida to the SW Bay of Campeche. Gale force
winds will then be S of 21N W of front.

CARIBBEAN SEA...

A 1007 mb low is centered near the N tip of Colombia at 13N71W. A
surface trough extends N from the low to Hispaniola at 18N71W.
Scattered moderate to strong convection is from 12N-15N between
69W-71W, to include Aruba and Curacao. Scattered showers are
elsewhere within 360 nm E of the trough axis, to include Puerto
Rico and the Virgin Islands. In the upper levels, an upper level
trough is over the NW Caribbean with axis from E Cuba near 20N74W
to the Gulf of Honduras near 16N89W. Upper level diffluence E of
the trough is enhancing the showers and convection over the
central Caribbean Sea. Expect the area of convection to drift E
and persist for the next 48 hours.

...HISPANIOLA...

Scattered showers are over E Hispaniola, and will continue
through Monday. Expect convection to be heaviest over E
Hispaniola in the afternoon and evening hours during maximum
heating. Localized flooding is also possible during this time.

ATLANTIC OCEAN...

A 1018 mb high is centered over the W Atlantic near 33N66W
producing fair weather. A stationary front is over the central
Atlantic from 31N40W to 27N50W, to an embedded 1009 mb low near
25N54W, to 22N61W. Scattered moderate convection is within 180 nm
of the front. A 1018 mb high is centered over the E Atlantic near
30N26W also producing fair weather. Of note in the upper levels,
a large upper level trough is over the W Atlantic enhancing the
central Atlantic with upper level diffluence. Another upper level
trough is over the far E Atlantic and Morocco.

For additional information please visit
http://www.hurricanes.gov/marine

$$
Formosa

Categories: Weather

NHC Atlantic Tropical Weather Discussion

Sat, 11/18/2017 - 18:04

000
AXNT20 KNHC 190003
TWDAT

Tropical Weather Discussion
NWS National Hurricane Center Miami FL
703 PM EST Sat Nov 18 2017

Tropical Weather Discussion for North America, Central America
Gulf of Mexico, Caribbean Sea, northern sections of South
America, and Atlantic Ocean to the African coast from the
Equator to 32N. The following information is based on satellite
imagery, weather observations, radar and meteorological analysis.

Based on 1800 UTC surface analysis and satellite imagery through
2345 UTC.

...SPECIAL FEATURE...

A cold front will reach the NW Gulf of Mexico tonight and will
move across the remainder of the Gulf through Monday. Strong high
pressure building behind the front will generate gale force winds
over the SW Gulf waters S of 25N to the west of the front beginning
1200 UTC Sunday and persisting through Sunday night. See the
latest high seas forecast under AWIPS/WMO headers HSFAT2/FZNT02
for more details.

...ITCZ/MONSOON TROUGH...

The monsoon trough extends from the African coast near 08N13W to
05N21W. The Intertropical Convergence Zone axis extends from
05N21W to 06N40W to 06N57W. Scattered moderate convection is from
03N to 06N between 16W and 35W.

...DISCUSSION...

GULF OF MEXICO...

A broad ridge extends from the SW N Atlc across the Florida
Peninsula and into the Gulf approximately to 93W. The ridge
supports light to gentle SSW winds E of 93W and SSW moderate flow
westward ahead of the next cold front that is coming off the Texas
and Louisiana coasts tonight. CIRA LPW and GOES-16 water vapor
imagery continue to show deep layered dry air basin-wide, which is
supporting clear skies. The cold front will sweep across the Gulf
through Monday. Gale force winds are forecast over a portion of
the SW Gulf Sunday behind the front. Please refer to the special
features section for more details.

CARIBBEAN SEA...

The base of a middle to upper level trough extending from the W
Atlc reaches the NW Caribbean where it support a weak surface
trough from the NE Yucatan Peninsula near 20N87W to the Gulf of
Honduras near 15N83W. Shallow moisture in this region of the basin
support isolated showers 90 nm either side of the trough axis.
Latest scatterometer data showed a low center just N of the Mona
Passage from which a surface trough extends SW to 15N71W. In the
south-central basin, a 1008 mb low is off the coast of Colombia
near 11N74W from which a surface trough extends northward to
southern Hispaniola. This elongated area of low pressure prevails
underneath an upper level ridge that supports diffluent flow and
thus scattered showers and tstms across the NE Caribbean,
including Puerto Rico and the Virgin Islands. Isolated showers are
between 68W and 74W, including Hispaniola and the Mona Passage. High
pressure over the western Atlantic is supporting moderate to
fresh NE winds over the northwestern Caribbean. Mainly light to
gentle winds cover the remainder of the Caribbean. The area of low
pressure in the southern basin will stall through early morning
morning while it weakens to a surface trough that will move
westward through the middle of the week.

...HISPANIOLA...

Isolated showers are across the island tonight being supported by
an elongated area of low pressure focused on a 1008 mb low just N
of the Mona Passage with associated surface trough extending SW to
southern Hispaniola adjacent waters. Showers will continue through
Monday as the area of low pressure drifts NE over the Atlc waters.

ATLANTIC OCEAN...

A broad ridge over portions of the NW Atlc waters extends SW
across the SW N Atlc supporting fair weather and NE to E moderate
to fresh winds. Over the central Atlc forecast waters a stationary
front extends from 30N40W to a 1008 mb low near 27N50W. A surface
trough then extends from the low SW to another 1008 mb low
pressure center located just N of the Mona Passage. These
features are supporting a large area of showers N of 22N between
37W and 56W and S of 23N between 55W and 69W. High pressure of
1019 mb centered near 26N25W dominates the eastern Atlantic. Over
the next 24 hours the lows will move NE with convection spreading
east. SW winds will increase to 20 to 25 kt N of 30N east of 70W
Sunday as a cold front approaches the region.

For additional information please visit
http://www.hurricanes.gov/marine

$$
Ramos
Categories: Weather

NHC Atlantic Tropical Weather Discussion

Sat, 11/18/2017 - 11:14

000
AXNT20 KNHC 181714
TWDAT

Tropical Weather Discussion
NWS National Hurricane Center Miami FL
1214 PM EST Sat Nov 18 2017

Tropical Weather Discussion for North America, Central America
Gulf of Mexico, Caribbean Sea, northern sections of South
America, and Atlantic Ocean to the African coast from the
Equator to 32N. The following information is based on satellite
imagery, weather observations, radar and meteorological analysis.

Based on 1200 UTC surface analysis and satellite imagery through
1615 UTC.

...SPECIAL FEATURE...

A cold front will reach the NW Gulf of Mexico tonight and will
move across the remainder of the Gulf through Monday. Strong high
pressure building behind the front will produce gale force winds
over the SW Gulf S of 25N to the west of the cold front beginning
1200 UTC Sunday and persisting through Sunday night. See the
latest high seas forecast under AWIPS/WMO headers HSFAT2/FZNT02
for more details.

...ITCZ/MONSOON TROUGH...

The monsoon trough extends from the African coast near 09N13W to
07N21W. The Intertropical Convergence Zone axis extends from
07N21W to 06N24W to 07N34W, then resumes west of a surface trough
near 09N43W to the South American coast near 09N61W.

...DISCUSSION...

GULF OF MEXICO...

A ridge axis extends across the eastern Gulf from high pressure
centered over the SE US Atlantic Coast. This ridge supports
gentle winds over the eastern gulf, and moderate to fresh winds
over the remainder of the Gulf. The basin is currently void of
convection. A cold front will reach the NW Gulf tonight and will sweep
across the Gulf through Monday. Gale force winds are expected
over a portion of the SW Gulf Sunday into Sunday night behind the
front. Please refer to the special features section for more
details on this gale.

CARIBBEAN SEA...

A surface trough extends from Hispaniola at 18N73W to a 1008 mb
low near 11N75W and then southward over Colombia. Due to an upper
trough to the west, scattered moderate convection is offset to the
east of these surface features, and is occurring within 240 nm E
of a line from 19N71W to 11N74W. High pressure over the western
Atlantic is supporting moderate to fresh NE winds over the
northwestern Caribbean. Mainly gentle to moderate winds cover the
remainder of the Caribbean. Over the next 24 hours the low and
trough will drift northeastward with convection continuing to the
east of the trough.

...HISPANIOLA...

Scattered showers are over the western half of the island as
moisture continues to get pulled across the region, due to an
upper trough to the west. This pattern will continue through
Sunday, with localized flooding possible during this time.

ATLANTIC OCEAN...

High pressure centered near the SE US coast dominates the Atlantic
waters west of 70W. A 1010 mb low is centered near 31N40W with a
stationary front extending from this low to 27N47W to a 1008 mb
low near 27N56W. A surface trough extends from this low to near
20N69W. Another surface trough is just to the east and extends
from 22N62W to 19N67W. These features are supporting a large area
of showers and embedded areas of steady rainfall with isolated
thunderstorms within 600 nm E of a line from 31N57W to 20N70W.
High pressure of 1019 mb centered near 28N28W dominates the
eastern Atlantic. Over the next 24 hours the lows will move NE
with convection spreading east. SW winds will increase to 20 to 25
kt N of 30N east of 70W Sunday as a cold front approaches the
region.

For additional information please visit
http://www.hurricanes.gov/marine

$$
Latto
Categories: Weather

NHC Atlantic Tropical Weather Discussion

Sat, 11/18/2017 - 05:54

000
AXNT20 KNHC 181154
TWDAT

Tropical Weather Discussion
NWS National Hurricane Center Miami FL
647 AM EST Sat Nov 18 2017

Tropical Weather Discussion for North America, Central America
Gulf of Mexico, Caribbean Sea, northern sections of South
America, and Atlantic Ocean to the African coast from the
Equator to 32N. The following information is based on satellite
imagery, weather observations, radar and meteorological analysis.

Based on 0600 UTC surface analysis and satellite imagery through
1015 UTC.

...SPECIAL FEATURE...

A cold front will reach the NW Gulf of Mexico tonight, and will
move across the remainder of the Gulf through Monday. Strong
high pressure building behind the front will produce gale force
winds over a portion of the SW Gulf S of 25N to the west of the
cold front beginning 1200 UTC Sunday and persisting until Sunday
night. See the latest high seas forecast under AWIPS/WMO headers
HSFAT2/FZNT02 for more details.

...ITCZ/MONSOON TROUGH...

The monsoon trough extends from the African coast near 09N13W to
08N20W. The Intertropical Convergence Zone axis extends from
08N20W to 06N24W to 08N36W, then resumes west of a surface trough
near 07N40W to the South American coast near 07N58W. Isolated
moderate convection is from 04N-11N between 12W-24W. Scattered
moderate convection is from 08N-11N between 38W-45W.

...DISCUSSION...

GULF OF MEXICO...

A 1021 mb high is centered over North Carolina near 35N78W. A
surface ridge axis extends SW from the high to the central Gulf
of. A stationary front continues to Mexico near 25N90W. 10-15 kt
surface winds are over the base of the ridge axis. Radar imagery
shows isolated showers over the Straits of Florida between 81W-
83W. Fair weather is over the remainder of the Gulf of Mexico. In
the upper levels, a large upper level high is centered over
central Mexico near 23N102W producing northerly upper level flow
and strong subsidence over the entire Gulf of Mexico. The next
cold front is expected to emerge off the Texas and Louisiana
coasts Saturday evening with showers. Gale force winds are
expected Sunday behind the front over a portion of the SW Gulf.
See the special features section for more details. Elsewhere, 25-
30 kt N-NE winds will follow in the wake of the front as it
sweeps southeastward.

CARIBBEAN SEA...

A surface trough extends from Hispaniola at 20N70W to N Colombia
at 07N75W. Two 1008 mb lows are embedded on the trough axis at
18N72W and 11N74W. Scattered showers and clusters of scattered
moderate convection are within 360 nm E of the trough axis, to
include Puerto Rico. In the upper levels, an upper level trough is
over the NW Caribbean with axis from central Cuba near 22N80W to
the Gulf of Honduras near 16N89W. Upper level diffluence E of the
trough is enhancing the showers and convection over the central
Caribbean Sea. Expect the area of convection to drift E and
persist for the next 48 hours.

...HISPANIOLA...

Scattered showers are over the island, and will continue through
the weekend. Expect convection to be heaviest over E Hispaniola
in the afternoon and evening hours during maximum heating.
Localized flooding is also possible during this time.

ATLANTIC OCEAN...

A 1007 mb low is centered over the central Atlantic near 26N57W.
A surface trough extends SW from the low to Hispaniola near
20N70W. Scattered moderate to isolated strong convection is N of
the Leeward Islands from 19N-23N between 59W-67W. Scattered
showers are elsewhere within 120 nm of the trough. A quasi-
stationary front enters the central Atlantic near 31N38W and
extends to 27N50W to the central Atlantic low near 26N57W.
Scattered showers are within 120 nm of the frontal system. A 1019
mb high is centered over the E Atlantic near 27N28W. Of note in
the upper levels, a large upper level trough is over the W
Atlantic enhancing the central Atlantic with upper level
diffluence. Another upper level trough is over Morocco.

For additional information please visit
http://www.hurricanes.gov/marine

$$
Formosa
Categories: Weather

NHC Atlantic Tropical Weather Discussion

Sat, 11/18/2017 - 04:17

000
AXNT20 KNHC 181017
TWDAT

Tropical Weather Discussion
NWS National Hurricane Center Miami FL
517 AM EST Sat Nov 18 2017

Tropical Weather Discussion for North America, Central America
Gulf of Mexico, Caribbean Sea, northern sections of South
America, and Atlantic Ocean to the African coast from the
Equator to 32N. The following information is based on satellite
imagery, weather observations, radar and meteorological analysis.

Based on 0600 UTC surface analysis and satellite imagery through
1015 UTC.

...ITCZ/MONSOON TROUGH...

The monsoon trough extends from the African coast near 09N13W to
08N20W. The Intertropical Convergence Zone axis extends from
08N20W to 06N24W to 08N36W, then resumes west of a surface trough
near 07N40W to the South American coast near 07N58W. Isolated
moderate convection is from 04N-11N between 12W-24W. Scattered
moderate convection is from 08N-11N between 38W-45W.

...DISCUSSION...

GULF OF MEXICO...

A 1021 mb high is centered over North Carolina near 35N78W. A
surface ridge axis extends SW from the high to the central Gulf of
Mexico near 25N90W. 10-15 kt surface winds are over the base of
the ridge axis. Radar imagery shows isolated showers over the
Straits of Florida between 81W-83W. Fair weather is over the
remainder of the Gulf of Mexico. In the upper levels, a large
upper level high is centered over central Mexico near 23N102W
producing northerly upper level flow and strong subsidence over
the entire Gulf of Mexico. The next cold front is expected to
emerge off the Texas and Louisiana coasts Saturday evening with
showers. 25-30 kt N-NE winds will follow in the wake of the front
as it sweeps southeastward.

CARIBBEAN SEA...

A surface trough extends from Hispaniola at 20N70W to N Colombia
at 07N75W. Two 1008 mb lows are embedded on the trough axis at
18N72W and 11N74W. Scattered showers and clusters of scattered
moderate convection are within 360 nm E of the trough axis, to
include Puerto Rico. In the upper levels, an upper level trough is
over the NW Caribbean with axis from central Cuba near 22N80W to
the Gulf of Honduras near 16N89W. Upper level diffluence E of the
trough is enhancing the showers and convection over the central
Caribbean Sea. Expect the area of convection to drift E and
persist for the next 48 hours.

...HISPANIOLA...

Scattered showers are over the island, and will continue through
the weekend. Expect convection to be heaviest over E Hispaniola
in the afternoon and evening hours during maximum heating.
Localized flooding is also possible during this time.

ATLANTIC OCEAN...

A 1007 mb low is centered over the central Atlantic near 26N57W.
A surface trough extends SW from the low to Hispaniola near
20N70W. Scattered moderate to isolated strong convection is N of
the Leeward Islands from 19N-23N between 59W-67W. Scattered
showers are elsewhere within 120 nm of the trough. A quasi-
stationary front enters the central Atlantic near 31N38W and
extends to 27N50W to the central Atlantic low near 26N57W.
Scattered showers are within 120 nm of the frontal system. A 1019
mb high is centered over the E Atlantic near 27N28W. Of note in
the upper levels, a large upper level trough is over the W
Atlantic enhancing the central Atlantic with upper level
diffluence. Another upper level trough is over Morocco.

For additional information please visit
http://www.hurricanes.gov/marine

$$
Formosa

Categories: Weather

NHC Atlantic Tropical Weather Discussion

Fri, 11/17/2017 - 23:18

000
AXNT20 KNHC 180518
TWDAT

Tropical Weather Discussion
NWS National Hurricane Center Miami FL
1218 AM EST Sat Nov 18 2017

Tropical Weather Discussion for North America, Central America
Gulf of Mexico, Caribbean Sea, northern sections of South
America, and Atlantic Ocean to the African coast from the
Equator to 32N. The following information is based on satellite
imagery, weather observations, radar and meteorological analysis.

Based on 0000 UTC surface analysis and satellite imagery through
0515 UTC.

...ITCZ/MONSOON TROUGH...

The monsoon trough extends from the African coast near 09N13W to
06N26W. The Intertropical Convergence Zone axis extends from
06N26W to 07N36W, then resumes west of a surface trough near
07N39W to 06N46W to the South American coast near 07N58W.
Scattered moderate convection is from 04N-10N E of 24W, and
from 08N-11N between 30W-46W.

...DISCUSSION...

GULF OF MEXICO...

A 1023 mb high is centered over North Carolina near 35N77W. A
surface ridge axis extends SW from the high to the central Gulf
of Mexico near 25N90W. 10-15 kt surface winds are over the base
of the ridge axis. Radar imagery shows scattered showers over the
Straits of Florida between 81W-83W. Mostly fair weather is over
the remainder of the Gulf of Mexico. In the upper levels, a large
upper level high is centered over central Mexico near 23N102W
producing northerly upper level flow and strong subsidence over
the entire Gulf of Mexico. The next cold front is expected to
emerge off the Texas and Louisiana coasts Saturday evening with
showers. 25-30 kt N-NE winds will follow in the wake of the front
as it sweeps southeastward.

CARIBBEAN SEA...

A surface trough extends from Hispaniola at 20N70W to N Colombia
at 09N75W. Two 1008 mb lows are embedded on the trough axis at
18N73W and 11N75W. Scattered showers and clusters of scattered
moderate convection are within 360 nm E of the trough axis, to
include Puerto Rico. In the upper levels, an upper level trough
is over the NW Caribbean with axis from central Cuba near 22N80W
to the Gulf of Honduras near 16N89W. Upper level diffluence E of
the trough is enhancing the showers and convection over the
central Caribbean Sea. Expect the area of convection to drift E
and persist for the next 48 hours.

...HISPANIOLA...

Scattered showers and thunderstorms are over the island, and will
continue through the weekend. Convection will likely be heaviest
over E Hispaniola in the afternoon and evening hours during
maximum heating. Localized flooding and life-threatening mud
slides are also possible during this time.

ATLANTIC OCEAN...

The tail end of a dissipating cold front is over the W Atlantic
from 31N64W to 27N71W. Scattered showers are within 45 nm of the
front. A 1009 mb low is centered over the central Atlantic near
26N59W. A surface trough extends SW from the low to Hispaniola
near 20N70W. Scattered moderate to isolated strong convection is N
of the Leeward Islands from 20N-23N between 60W-68W. Scattered
showers are elsewhere within 120 nm of the trough. A cold front
enters the central Atlantic near 31N40W and extends to 27N46W. A
stationary front continues to the central Atlantic low near
26N59W. Scattered showers are within 120 nm of the frontal system.
A 1018 mb high is centered over the E Atlantic near 27N27W. Of
note in the upper levels, a large upper level trough is over the W
Atlantic supporting the W Atlantic front, and enhancing the
central Atlantic with upper level diffluence. Another upper level
trough is over Morocco.

For additional information please visit
http://www.hurricanes.gov/marine

$$
Formosa

Categories: Weather

NHC Atlantic Tropical Weather Discussion

Fri, 11/17/2017 - 18:03

000
AXNT20 KNHC 180003
TWDAT

Tropical Weather Discussion
NWS National Hurricane Center Miami FL
703 PM EST Fri Nov 17 2017

Tropical Weather Discussion for North America, Central America
Gulf of Mexico, Caribbean Sea, northern sections of South
America, and Atlantic Ocean to the African coast from the
Equator to 32N. The following information is based on satellite
imagery, weather observations, radar and meteorological analysis.

Based on 1800 UTC surface analysis and satellite imagery through
2345 UTC.

...ITCZ/MONSOON TROUGH...

The monsoon trough extends from the African coast near 10N15W to
07N21W. The Intertropical Convergence Zone axis extends from
07N21W to 07N34W, then resumes west of a surface trough near
06N38W to 04N52W. Scattered moderate convection is from 07N-10N E
of 16W.

...DISCUSSION...

GULF OF MEXICO...

Stable conditions prevail basin-wide being supported by deep
layered dry air and a broad surface ridge anchored near West
Virginia that extends SSW into the Gulf. This ridge provides NE to
E light to moderate flow E of 90W and E to SE winds of the same
magnitude W of 90W. The next cold front is expected to emerge off
the Texas and Louisiana coasts by Saturday night followed by
strong to near-gale N-NE winds. Scattered to isolated showers are
expected in the vicinity of the front as it moves southeastward
through Monday.

CARIBBEAN SEA...

A pair of lows prevail in the central Caribbean underneath a broad
upper level ridge covering the eastern half of the basin. The
northern low is 1008 mb and is located over S Haiti adjacent
waters near 17N73W. The second low is 1009 mb and is off the coast
of Colombia near 12N75W. Upper level diffluence between an upper
trough over the western basin and the ridge to the east supports
scattered showers and tstms N of 15N between 67W and 73W and S of
13N between 71W and 79W. Otherwise, moderate to occasional fresh
northerly winds are noted across the western Caribbean waters
generally W of 78W while ESE light to moderate wind flow is E of
the the area of low pressure. The low is expected to remain
nearly stationary S of Hispaniola and gradually dissipate by
Monday.

...HISPANIOLA...

Scattered showers and tstms are across the eastern half of the
island while isolated showers are elsewhere. This activity is
being supported by an elongated area of low pressure in the
Central Caribbean extending beyond Hispaniola into the SW N Atlc
waters. Upper level diffluence supports this convection as well.
Similar shower activity will continue during the weekend into
Monday as the area of low pressure S of the island will stall
before dissipating early next week.

ATLANTIC OCEAN...

The SW North Atlc is under the influence of a relatively dry
middle to upper level trough that supports a cold front N of the
area with tail dissipating along 30N66W to 27N72W. A middle level
trough and upper level diffluence supports scattered showers and
tstms N of Hispaniola and Puerto Rico to 24N. North-northeast of
that area of convection, a stationary front extends from 30N40W to
27N50W to a 1009 mb low near 25N61W. Scattered showers are N of
the low between 50W and 65W. Surface ridging is elsewhere in the
central and eastern Atlc being anchored by a 1018 mb high near
27N31W.

For additional information please visit
http://www.hurricanes.gov/marine

$$
Ramos
Categories: Weather

NHC Atlantic Tropical Weather Discussion

Fri, 11/17/2017 - 11:18

000
AXNT20 KNHC 171718
TWDAT

Tropical Weather Discussion
NWS National Hurricane Center Miami FL
1218 PM EST Fri Nov 17 2017

Tropical Weather Discussion for North America, Central America
Gulf of Mexico, Caribbean Sea, northern sections of South
America, and Atlantic Ocean to the African coast from the
Equator to 32N. The following information is based on satellite
imagery, weather observations, radar and meteorological analysis.

Based on 1200 UTC surface analysis and satellite imagery through
1545 UTC.

...ITCZ/MONSOON TROUGH...
The monsoon trough extends from the African coast near 09N13W to
06N24W to 07N30W. The Intertropical Convergence Zone axis extends
from 07N30W to 08N38W to 05N52W. Widely scattered moderate
convection is from 03N-13N between 18W-42W.

...DISCUSSION...

GULF OF MEXICO...
NW flow aloft prevails over the Gulf basin this afternoon on the
western periphery of an upper level trough extending over the SW
North Atlc...southern Florida peninsula...and base over southern
Mexico. Mostly stable conditions are noted at the surface as a
ridge axis extends from an Ohio River valley anchored 1027 mb high
near 40N81W S-SW to the lower Mississippi River valley into the SW
Gulf near 21N95W. Skies are mostly clear with the exception of a
few possible isolated showers within 60 nm either side of a
surface trough analyzed from 18N94W to 23N98W. Otherwise...gentle
to moderate anticyclonic winds are forecast through early Friday
night. The next cold front is expected to emerge off the Texas
and Louisiana coasts by late Saturday into Saturday night. Fresh
to strong N-NE winds will follow in wake of the front as it sweeps
southeastward through Sunday night into early Monday.

CARIBBEAN SEA...
A broad area of lower pressure across the basin continues to be
focused on a 1008 mb low centered SW of Hispaniola near 17N73W. A
surface trough extends SW from the low to near 11N77W and links up
with the monsoon trough axis along 09N/10N supporting scattered
showers and strong tstms from 09N-18N between 68W-79W.
Otherwise...moderate to occasional fresh northerly winds are
noted across the western Caribbean waters generally W of
77W...while trade wind flow E of the surface troughing will
continue to be disrupted outside of convection...with gentle to
moderate southerly winds prevailing this afternoon through the
upcoming weekend. The low is expected to remain nearly stationary
SW of Hispaniola and gradually dissipate by Monday.

...HISPANIOLA...
Widely scattered showers and isolated tstms are expected to
persist across the island the next few days as deep moisture and
cloudiness advects NE over the region due to an upper trough to
the NW over the SW North Atlc and SE Gulf of Mexico. Convection
will likely be more widespread in areal coverage during the
afternoon and evening hours due to maximum heating and
instability.

ATLANTIC OCEAN...
The SW North Atlc is under the influence of an relatively dry
middle to upper level trough with axis extending from 32N75W to
over the Florida Straits to a base over southern Mexico. However a
cold front primarily analyzed N of the discussion area extends
from 32N68W to 30N73W providing possible isolated showers from
26N-32N between the front and 65W. More active weather lies to
the SE as the upper level troughing has continued to support
another cold front entering the discussion area across the central
Atlc. The cold front extends from 32N41W SW to 27N51W becoming
stationary into a 1009 mb low centered near 24N64W. Weak surface
troughing then continues W-SW to the coast of Hispaniola near
20N72W and into the central Caribbean Sea. Scattered showers and
widely scattered tstms are occurring across a large area in the
vicinity of the troughing and stationary front from 20N-29N
between 51W-74W. Other widely scattered showers and isolated tstms
are occurring in association with the cold front from 25N-32N
between 32W-47W. The frontal troughing is expected to persist
across the central Atlc through Saturday night as ridging builds
in off the SE CONUS and into the SW North Atlc. Finally...mostly
tranquil conditions are noted across the eastern Atlc in the
vicinity of a 1018 mb high centered near 28N29W...however a
surface trough extends from a weakening 1014 mb low centered SE of
the Azores to near 27N23W. Possible isolated showers are N of 27N
between 15W-21W...including the Canary Islands.

For additional information please visit
http://www.hurricanes.gov/marine

$$
HUFFMAN

Categories: Weather

NHC Atlantic Tropical Weather Discussion

Fri, 11/17/2017 - 04:29

000
AXNT20 KNHC 171029
TWDAT

Tropical Weather Discussion
NWS National Hurricane Center Miami FL
529 AM EST Fri Nov 17 2017

Tropical Weather Discussion for North America, Central America
Gulf of Mexico, Caribbean Sea, northern sections of South
America, and Atlantic Ocean to the African coast from the
Equator to 32N. The following information is based on satellite
imagery, weather observations, radar and meteorological analysis.

Based on 0600 UTC surface analysis and satellite imagery through
1015 UTC.

...SPECIAL FEATURES...

A 993 mb low is centered near 40N41W with an associated cold
front extending SW from the low to 37N39W to 31N44W. A surface
trough continues SW from 31N44W to 27N53W. The low is supported
aloft by an upper level trough between 35W-55W N of 30N. In
forecast waters, gale force S-SW winds are N of 29N E of the
trough between 41W-43W, with seas from 10-16 ft. See the latest
NWS High Seas Forecast under AWIPS/WMO headers MIAHSFAT2/FZNT02
KNHC for more details.

...ITCZ/MONSOON TROUGH...

The monsoon trough extends from the African coast near 10N14W to
06N23W to 06N28W. The Intertropical Convergence Zone axis extends
from 06N28W to 04N38W to the South American coast near 06N54W.
Isolated moderate convection is from 04N-11N E of 42W.

...DISCUSSION...

GULF OF MEXICO...

A 1025 mb high is centered over Ohio near 40N84W. A surface ridge
axis extends S from the high to the central Gulf of Mexico near
26N90W. 10-15 kt surface winds are over the base of the ridge
axis. A surface trough is over the Bay of Campeche from 21N94W to
17N94W. Scattered showers are S of 21N between 92W-97W.
Elsewhere, radar imagery shows scattered showers and isolated
thunderstorms over the Straits of Florida and W Cuba from 23N-25N
between 80W-82W. Mostly fair weather is over the remainder of the
Gulf of Mexico. In the upper levels, a large upper level trough
is over the Gulf with axis from N Florida at 30N80W to the Yucatan
Peninsula at 20N90W. Very strong subsidence is over the Gulf. The
next cold front is expected to emerge off the Texas and Louisiana
coasts Saturday evening with showers. 25-30 kt N-NE winds will
follow in the wake of the front as it sweeps southeastward.

CARIBBEAN SEA...

A surface trough extends from Hispaniola at 20N70W to Panama at
09N79W. Two 1008 mb lows are embedded on the trough axis at
17N73W and 13N76W. Scattered showers and clusters of scattered
moderate convection are within 420 nm E of the trough axis. In the
upper levels, upper level diffluence E of the Gulf of Mexico
trough is enhancing the showers and convection over the Caribbean
Sea. Expect conditions to persist for the next 48 hours.

...HISPANIOLA...

Scattered showers and thunderstorms are over the island, and will
continue through the weekend, as deep moisture advects NE over
the region due to the upper level trough. Convection will likely
be heaviest in the afternoon and evening hours during maximum
heating. Localized flooding and life-threatening mud slides are
also possible during this time.

ATLANTIC OCEAN...

The tail end of a dissipating cold front is over the W Atlantic
from 31N70W to 27N74W. A trough extends from 26N73W through the
central Bahamas to central Cuba at 23N80W. Scattered showers are
within 45 nm of the trough. Another surface trough is N of the
Leeward Islands from 25N62W to Hispaniola at 20N70W. Scattered
showers and clusters of scattered moderate convection are within
360 nm E of the trough axis. A surface trough with gale winds are
over the central Atlantic. See above. Scattered showers and
clusters of scattered moderate convection are within 240 nm E of
this trough axis. A 1020 mb high is centered over the E Atlantic
near 28N30W. The tail end of a surface trough is over the E
Atlantic from 31N19W to 27N23W. Scattered moderate convection is
W of the Canary Islands from 28N-31N between 18W-20W. Of note in
the upper levels, a large upper level trough is over the W
Atlantic supporting the W Atlantic front, and enhancing the
central Atlantic with upper level diffluence. Another upper level
trough is over the E Atlantic supporting the E Atlantic surface
trough.

For additional information please visit
http://www.hurricanes.gov/marine

$$
Formosa

Categories: Weather

NHC Atlantic Tropical Weather Discussion

Fri, 11/17/2017 - 00:02

000
AXNT20 KNHC 170602
TWDAT

Tropical Weather Discussion
NWS National Hurricane Center Miami FL
102 AM EST Fri Nov 17 2017

Tropical Weather Discussion for North America, Central America
Gulf of Mexico, Caribbean Sea, northern sections of South
America, and Atlantic Ocean to the African coast from the
Equator to 32N. The following information is based on satellite
imagery, weather observations, radar and meteorological analysis.

Based on 0000 UTC surface analysis and satellite imagery through
0515 UTC.

...SPECIAL FEATURES...

A 996 mb low is centered near 38N44W with the associated cold
front extending SW from the low to 31N47W. A surface trough
continues SW from 31N44W to 26N58W. The low is supported aloft by
an upper level trough between 35W-55W N of 30N. In forecast
waters, gale force S-SW winds are N of 29N E of the trough between
43W-45W, with seas from 10-16 ft. See the latest NWS High Seas
Forecast under AWIPS/WMO headers MIAHSFAT2/FZNT02 KNHC for more
details.

...ITCZ/MONSOON TROUGH...

The monsoon trough extends from the African coast near 08N13W to
06N27W. The Intertropical Convergence Zone axis extends from
06N27W to 08N40W to the South American coast near 08N51W. Isolated
moderate convection is from 04N-12N E of 43W.

...DISCUSSION...

GULF OF MEXICO...

A 1026 mb high is centered over Indiana near 40N87W. A surface
ridge axis extends S from the high to the central Gulf of Mexico
near 26N90W. 10-15 kt surface winds are over the base of the
ridge axis. A surface trough is over the Bay of Campeche from
22N93W to 18N93W. Scattered showers are S of 21N between 92W- 97W.
Elsewhere, radar imagery shows scattered showers and isolated
thunderstorms over the Straits of Florida and W Cuba from 23N-25N
between 80W- 82W. Mostly fair weather is over the remainder of the
Gulf of Mexico. In the upper levels, a large upper level trough
is over the Gulf with axis from N Florida at 30N80W to the Yucatan
Peninsula at 20N90W. Very strong subsidence is over the Gulf. The
next cold front is expected to emerge off the Texas and Louisiana
coasts Saturday evening with showers. 25-30 kt N-NE winds will
follow in the wake of the front as it sweeps southeastward.

CARIBBEAN SEA...

A surface trough extends from Haiti at 20N72W to W Panama at
09N82W. Two 1008 mb lows are embedded on the trough axis at 17N75W
and 14N78W. Scattered showers and clusters of scattered moderate
convection are within 420 nm E of the trough axis. In the upper
levels, upper level diffluence E of the Gulf of Mexico trough is
enhancing the showers and convection over the Caribbean Sea.
Expect conditions to persist for the next 48 hours.

...HISPANIOLA...

Scattered showers and thunderstorms are over the island, and will
continue through the weekend, as deep moisture advects NE over
the region due to the upper level trough. Convection will likely
be heaviest in the afternoon and evening hours during maximum
heating. Localized flooding and life-threatening mud slides are
also possible during this time.

ATLANTIC OCEAN...

The tail end of a dissipating cold front is over the W Atlantic
from 31N73W to the N Bahamas at 27N79W. A prefrontal trough
extends from 29N72W through the central Bahamas to central Cuba at
23N80W. Scattered showers are within 45 nm of the trough. Another
surface trough is over the W Atlantic from 24N65W to Haiti at
20N72W. Scattered showers and clusters of scattered moderate
convection are within 360 nm E of the trough axis. A surface
trough with gale winds are over the central Atlantic. See above.
Scattered showers and clusters of scattered moderate convection
are within 240 nm E of this trough axis. A 1019 mb high is
centered over the E Atlantic near 31N33W. The tail end of a
surface trough is over the E Atlantic from 31N20W to 28N24W.
Scattered moderate convection is W of the Canary Islands from N of
28N between 17W-21W. Of note in the upper levels, a large upper
level trough is over the W Atlantic supporting the W Atlantic
front, and enhancing the central Atlantic with upper level
diffluence. Another upper level trough is over the E Atlantic
supporting the E Atlantic surface trough.

For additional information please visit
http://www.hurricanes.gov/marine

$$
Formosa

Categories: Weather

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