Weather

SPC Day 2 Fire Weather Outlook

Weather - Fire Weather - Sun, 11/19/2017 - 14:01
SPC Day 2 Fire Weather Outlook
Day 2 Fire Weather Outlook NWS Storm Prediction Center Norman OK 0200 PM CST Sun Nov 19 2017 Valid 201200Z - 211200Z ...CRITICAL FIRE WEATHER AREA FOR EAST-CENTRAL NEW MEXICO... ...Central High Plains... An elevated area has been introduced across portions of the central High Plains. Strong west-northwesterly downslope flow will combine with temperatures warming into the 50s/lower 60s to result in elevated to potentially critical wind/RH conditions across this area. The best chance of critical conditions is across portions of southeast WY/northeast CO into the NE Panhandle and perhaps northwest KS. However, due to lingering uncertainty regarding fuel conditions and the southern/eastern extent of critical wind/RH, no critical delineation has been made at this time. ...East-central NM into portions of west TX and south-central CO... Critical conditions still appear possible across portions of east-central NM, with elevated conditions extending eastward into portions of west TX and the southern TX Panhandle. See the previous discussion below for more details regarding this threat. The elevated area has been expanded into portions of south-central CO, where locally enhanced downslope flow will result in the potential for elevated conditions during the afternoon. ...Portions of north TX...OK...central/eastern KS... Strong south-southwesterly winds are expected on Monday from western north TX northeast into eastern KS, as the low-level jet increases in response to deepening low pressure well to the north across the southern Canadian prairies. With very limited moisture return expected, RH values may drop to around 30% in conjunction with the strengthening low-level flow. There is some potential for RH to drop even lower, which would result in an increased risk of elevated fire weather conditions, and an elevated delineation may eventually be needed for portions of this area. ..Dean.. 11/19/2017 .PREV DISCUSSION... /ISSUED 1250 AM CST Sun Nov 19 2017/ ...Synopsis... The large-scale mid-level pattern is forecast to undergo amplification on Monday as a ridge builds northward across the west. In between, strong northwest flow will take shape across the leeward side of the Rocky Mountains, particularly the southern Rockies. At the surface, the lee trough across the High Plains will begin to move east as a surface front pushes south through the Plains. ...East-central New Mexico into the southern Texas Panhandle... Downslope warming and drying from northwest flow will result in relative humidity falling into the single digits to lower teens. At the same time, the combination of vertical mixing, enhanced mid-level flow overhead, and the lingering effects of the lee trough will result in strong, gusty surface winds -- potentially in excess of 30 mph. This will result in elevated-to-critical fire-weather conditions during the afternoon. ...Please see www.spc.noaa.gov/fire for graphic product... Read more
Categories: Weather

NHC Atlantic Tropical Weather Discussion

NWS Weather - 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

SPC Day 1 Fire Weather Outlook

Weather - Fire Weather - Sun, 11/19/2017 - 10:23
SPC Day 1 Fire Weather Outlook
Day 1 Fire Weather Outlook NWS Storm Prediction Center Norman OK 1021 AM CST Sun Nov 19 2017 Valid 191700Z - 201200Z ...Southern High Plains... No changes have been made to the elevated area across portions of the southern High Plains. Minimum RH values of 15-20% combined with sustained winds in the 15-20 mph range are expected to result in a few hours of elevated conditions this afternoon. See the previous discussion below for more details. ..Dean.. 11/19/2017 .PREV DISCUSSION... /ISSUED 1250 AM CST Sun Nov 19 2017/ ...Synopsis... General mid-level ridging will be in place across much of the western United States today as a deep trough takes shape across the East. At the surface, high pressure will be located across the Great Basin with another centered across south Texas. Through the day, the high across Texas will shift east and a lee trough will develop across the High Plains and southerly winds will begin to increase. Across the southern High Plains, temperatures will warm enough to result in teen to mid-20 percent relative humidity. This, when coupled with the increasing southerly winds will result in a few hours of elevated fire-weather conditions. However, temperatures in the mid-50s to mid-60s should mitigate a larger-scale fire-weather threat. ...Please see www.spc.noaa.gov/fire for graphic product... Read more
Categories: Weather

NHC Atlantic Tropical Weather Discussion

NWS Weather - 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

SPC Day 2 Fire Weather Outlook

Weather - Fire Weather - Sun, 11/19/2017 - 00:52
SPC Day 2 Fire Weather Outlook
Day 2 Fire Weather Outlook NWS Storm Prediction Center Norman OK 1250 AM CST Sun Nov 19 2017 Valid 201200Z - 211200Z ...CRITICAL FIRE WEATHER AREA FOR EAST-CENTRAL NEW MEXICO... ...Synopsis... The large-scale mid-level pattern is forecast to undergo amplification on Monday as a ridge builds northward across the west. In between, strong northwest flow will take shape across the leeward side of the Rocky Mountains, particularly the southern Rockies. At the surface, the lee trough across the High Plains will begin to move east as a surface front pushes south through the Plains. ...East-central New Mexico into the southern Texas Panhandle... Downslope warming and drying from northwest flow will result in relative humidity falling into the single digits to lower teens. At the same time, the combination of vertical mixing, enhanced mid-level flow overhead, and the lingering effects of the lee trough will result in strong, gusty surface winds -- potentially in excess of 30 mph. This will result in elevated-to-critical fire-weather conditions during the afternoon. ..Marsh.. 11/19/2017 ...Please see www.spc.noaa.gov/fire for graphic product... Read more
Categories: Weather

SPC Day 1 Fire Weather Outlook

Weather - Fire Weather - Sun, 11/19/2017 - 00:51
SPC Day 1 Fire Weather Outlook
Day 1 Fire Weather Outlook NWS Storm Prediction Center Norman OK 1250 AM CST Sun Nov 19 2017 Valid 191200Z - 201200Z ...Synopsis... General mid-level ridging will be in place across much of the western United States today as a deep trough takes shape across the East. At the surface, high pressure will be located across the Great Basin with another centered across south Texas. Through the day, the high across Texas will shift east and a lee trough will develop across the High Plains and southerly winds will begin to increase. Across the southern High Plains, temperatures will warm enough to result in teen to mid-20 percent relative humidity. This, when coupled with the increasing southerly winds will result in a few hours of elevated fire-weather conditions. However, temperatures in the mid-50s to mid-60s should mitigate a larger-scale fire-weather threat. ..Marsh.. 11/19/2017 ...Please see www.spc.noaa.gov/fire for graphic product... Read more
Categories: Weather

NHC Atlantic Tropical Weather Discussion

NWS Weather - 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

NWS Weather - 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

SPC Day 2 Fire Weather Outlook

Weather - Fire Weather - Sat, 11/18/2017 - 11:47
SPC Day 2 Fire Weather Outlook
Day 2 Fire Weather Outlook NWS Storm Prediction Center Norman OK 1145 AM CST Sat Nov 18 2017 Valid 191200Z - 201200Z ...Southern Plains... No changes have been made to the existing elevated area. Some areas within the elevated area may approach critical wind/RH criteria, though relatively cool temperatures should limit the threat to some extent. See the previous discussion below for more details. ..Dean.. 11/18/2017 .PREV DISCUSSION... /ISSUED 0148 AM CST Sat Nov 18 2017/ ...Synopsis... A broad mid-level ridge will take hold across much of the western half of the country on Sunday in the wake of a fast-moving, mid-level trough. At the surface, high pressure will be located across the Great Basin, with a secondary high pressure center located over southern Texas. In between, weak lee troughing will begin to take hold across the High Plains. ...Southern Plains... Southerly winds will increase in response to a tightening surface-pressure gradient. Relative humidity will fall in the upper-teens to near thirty percent during the afternoon. The result will be elevated fire-weather conditions for a few hours during Sunday afternoon. However, temperatures in the mid-50s to mid-60s should mitigate a larger-scale fire-weather threat. ...Please see www.spc.noaa.gov/fire for graphic product... Read more
Categories: Weather

SPC Day 2 Fire Weather Outlook

Weather - Fire Weather - Sat, 11/18/2017 - 11:47
SPC Day 2 Fire Weather Outlook
Day 2 Fire Weather Outlook NWS Storm Prediction Center Norman OK 1145 AM CST Sat Nov 18 2017 Valid 191200Z - 201200Z ...Southern Plains... No changes have been made to the existing elevated area. Some areas within the elevated area may approach critical wind/RH criteria, though relatively cool temperatures should limit the threat to some extent. See the previous discussion below for more details. ..Dean.. 11/18/2017 .PREV DISCUSSION... /ISSUED 0148 AM CST Sat Nov 18 2017/ ...Synopsis... A broad mid-level ridge will take hold across much of the western half of the country on Sunday in the wake of a fast-moving, mid-level trough. At the surface, high pressure will be located across the Great Basin, with a secondary high pressure center located over southern Texas. In between, weak lee troughing will begin to take hold across the High Plains. ...Southern Plains... Southerly winds will increase in response to a tightening surface-pressure gradient. Relative humidity will fall in the upper-teens to near thirty percent during the afternoon. The result will be elevated fire-weather conditions for a few hours during Sunday afternoon. However, temperatures in the mid-50s to mid-60s should mitigate a larger-scale fire-weather threat. ...Please see www.spc.noaa.gov/fire for graphic product... Read more
Categories: Weather

NHC Atlantic Tropical Weather Discussion

NWS Weather - 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

SPC Day 1 Fire Weather Outlook

Weather - Fire Weather - Sat, 11/18/2017 - 10:39
SPC Day 1 Fire Weather Outlook
Day 1 Fire Weather Outlook NWS Storm Prediction Center Norman OK 1037 AM CST Sat Nov 18 2017 Valid 181700Z - 191200Z ...Southern CA... Some potential for elevated fire weather conditions will continue across primarily the higher terrain of Santa Barbara, Ventura, and Los Angeles Counties within a weak offshore flow regime, though the tendency for the strongest winds to be out of phase with near-critical RH should limit the overall threat. See the previous discussion below for more details. ..Dean.. 11/18/2017 .PREV DISCUSSION... /ISSUED 0148 AM CST Sat Nov 18 2017/ ...Synopsis... A strong mid-level trough will continue to move across the United States today. In the wake of this trough, cooler and drier conditions will overspread much of the western two-thirds of the United States as a surface high pressure moves into the Great Basin. The position of the high will result in north/northeasterly winds across portions of Southern California both this morning and Sunday morning, with a diurnally driven decrease in winds in between. The offshore flow will result in elevated fire-weather conditions primarily across the mountains of Santa Barbara, Ventura, and Los Angeles counties. Elsewhere, strong gusty northerly winds will overspread portions of the southern Plains in the wake of a surface cold front. Cooler conditions will result in slightly higher relative humidity today as compared to Friday. The higher relative humidity and cooler conditions should limit the overall fire-weather threat despite the strong, gusty surface winds. ...Please see www.spc.noaa.gov/fire for graphic product... Read more
Categories: Weather

SPC Day 1 Fire Weather Outlook

Weather - Fire Weather - Sat, 11/18/2017 - 10:39
SPC Day 1 Fire Weather Outlook
Day 1 Fire Weather Outlook NWS Storm Prediction Center Norman OK 1037 AM CST Sat Nov 18 2017 Valid 181700Z - 191200Z ...Southern CA... Some potential for elevated fire weather conditions will continue across primarily the higher terrain of Santa Barbara, Ventura, and Los Angeles Counties within a weak offshore flow regime, though the tendency for the strongest winds to be out of phase with near-critical RH should limit the overall threat. See the previous discussion below for more details. ..Dean.. 11/18/2017 .PREV DISCUSSION... /ISSUED 0148 AM CST Sat Nov 18 2017/ ...Synopsis... A strong mid-level trough will continue to move across the United States today. In the wake of this trough, cooler and drier conditions will overspread much of the western two-thirds of the United States as a surface high pressure moves into the Great Basin. The position of the high will result in north/northeasterly winds across portions of Southern California both this morning and Sunday morning, with a diurnally driven decrease in winds in between. The offshore flow will result in elevated fire-weather conditions primarily across the mountains of Santa Barbara, Ventura, and Los Angeles counties. Elsewhere, strong gusty northerly winds will overspread portions of the southern Plains in the wake of a surface cold front. Cooler conditions will result in slightly higher relative humidity today as compared to Friday. The higher relative humidity and cooler conditions should limit the overall fire-weather threat despite the strong, gusty surface winds. ...Please see www.spc.noaa.gov/fire for graphic product... Read more
Categories: Weather

NHC Atlantic Tropical Weather Discussion

NWS Weather - 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

NWS Weather - 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

SPC Day 2 Fire Weather Outlook

Weather - Fire Weather - Sat, 11/18/2017 - 01:51
SPC Day 2 Fire Weather Outlook
Day 2 Fire Weather Outlook NWS Storm Prediction Center Norman OK 0148 AM CST Sat Nov 18 2017 Valid 191200Z - 201200Z ...Synopsis... A broad mid-level ridge will take hold across much of the western half of the country on Sunday in the wake of a fast-moving, mid-level trough. At the surface, high pressure will be located across the Great Basin, with a secondary high pressure center located over southern Texas. In between, weak lee troughing will begin to take hold across the High Plains. ...Southern Plains... Southerly winds will increase in response to a tightening surface-pressure gradient. Relative humidity will fall in the upper-teens to near thirty percent during the afternoon. The result will be elevated fire-weather conditions for a few hours during Sunday afternoon. However, temperatures in the mid-50s to mid-60s should mitigate a larger-scale fire-weather threat. ..Marsh.. 11/18/2017 ...Please see www.spc.noaa.gov/fire for graphic product... Read more
Categories: Weather

SPC Day 1 Fire Weather Outlook

Weather - Fire Weather - Sat, 11/18/2017 - 01:50
SPC Day 1 Fire Weather Outlook
Day 1 Fire Weather Outlook NWS Storm Prediction Center Norman OK 0148 AM CST Sat Nov 18 2017 Valid 181200Z - 191200Z ...Synopsis... A strong mid-level trough will continue to move across the United States today. In the wake of this trough, cooler and drier conditions will overspread much of the western two-thirds of the United States as a surface high pressure moves into the Great Basin. The position of the high will result in north/northeasterly winds across portions of Southern California both this morning and Sunday morning, with a diurnally driven decrease in winds in between. The offshore flow will result in elevated fire-weather conditions primarily across the mountains of Santa Barbara, Ventura, and Los Angeles counties. Elsewhere, strong gusty northerly winds will overspread portions of the southern Plains in the wake of a surface cold front. Cooler conditions will result in slightly higher relative humidity today as compared to Friday. The higher relative humidity and cooler conditions should limit the overall fire-weather threat despite the strong, gusty surface winds. ..Marsh.. 11/18/2017 ...Please see www.spc.noaa.gov/fire for graphic product... Read more
Categories: Weather

NHC Atlantic Tropical Weather Discussion

NWS Weather - 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

NWS Weather - 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

NWS Weather - 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

Pages

Subscribe to Volunteer Mobile Emergency Response Unit -- rehabsector.org aggregator - Weather