Weather

The National Weather Service in Aberdeen has issued a * Flood Warning for... Snowmelt in... Southeastern Codington County in northeastern South Dakota... * Until 100 PM CDT Sunday * At 107 AM CDT, the river gauge on Willow creek in Watertown has Flood Warning 2018-04-22T00:11:00-06:00 2018-04-22T13:00:00-06:00 Actual Alert Met Expected Moderate Likely Codington 45.01,-96.93 44.96,-96.91 44.9,-96.98 44.87,-97.05 44.9,-97.1 44.94,-97.03 45,-96.97 45.01,-96.93 FIPS6 046029 UGC SDC029 VTEC /O.NEW.KABR.FA.W.0008.180422T0611Z-180422T1800Z/ /00000.0.SM.000000T0000Z.000000T0000Z.000000T0000Z.OO/

...The National Weather Service in Aberdeen has issued a flood warning for the following rivers in South Dakota... James River Near Columbia .The following river forecasts include forecast precipitation through the next 24 hours. Any additional future precipitation could affect the forecasts. Flood Warning 2018-04-22T00:09:00-06:00 2018-04-25T13:30:00-06:00 Actual Alert Met Expected Moderate Likely Brown 45.94,-98.13 45.63,-98.27 45.52,-98.18 45.52,-98.3 45.63,-98.37 45.94,-98.2 45.94,-98.13 FIPS6 046013 UGC SDC013 VTEC /O.NEW.KABR.FL.W.0005.180422T0609Z-180425T1930Z/ /CMBS2.1.SM.180422T0500Z.180424T0000Z.180425T1330Z.NO/

...SIGNIFICANT WEATHER ADVISORY FOR SOUTHEASTERN HARRISON...NORTHERN PANOLA AND NORTHEASTERN RUSK COUNTIES UNTIL 200 AM CDT... At 1257 AM CDT, Doppler radar was tracking strong thunderstorms near Tatum and Beckville, moving northeast at 30 mph. Winds in excess of 30 mph will be possible with these storms. Locations impacted include... Special Weather Statement 2018-04-22T01:01:00-05:00 2018-04-22T02:00:00-05:00 Actual Alert Met Expected Minor Observed Harrison; Panola; Rusk 32.2,-94.51 32.42,-94.57 32.69,-94.21 32.68,-94.05 32.31,-94.05 32.2,-94.51 FIPS6 048203 048365 048401 UGC TXZ138 TXZ150 TXZ151 VTEC

000
AXNT20 KNHC 220529
TWDAT

Tropical Weather Discussion
NWS National Hurricane Center Miami FL
128 AM EDT Sun Apr 22 2018

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
0500 UTC.

...MONSOON TROUGH/ITCZ...

The monsoon trough passes through the coastal sections of Sierra
Leone near 07N12W, curving to 04N16W and 02N19W. The ITCZ continues
from 02N19W, to the Equator along 30W, to 45W from the Equator to
01S. Precipitation: isolated moderate to locally strong
rainshowers are from 05N southward from 14W westward, and from 08N
southward elsewhere westward to 60W. scattered to numerous strong
rainshowers are from 01N to 02.5N from 04W eastward.

...DISCUSSION...

GULF OF MEXICO...

A stationary front passes through the Atlantic Ocean, to the
eastern coast of Florida near 27N80W, to 26N87W, and 26N89W.
The remainder of the stationary front, that part that is in the
western Gulf of Mexico, is dissipating along 26N89W beyond 29N95W,
and inland at the coast of Texas. Upper level cyclonic wind flow,
with a trough, is moving through the eastern sections of Texas.
Upper level NW wind flow moves from Texas, through the Gulf of
Mexico, and then beyond it, into the NW part of Costa Rica. The
NW wind flow is on the western side of an upper level trough,
whose cyclonic wind flow eventually covers parts of the eastern
Gulf of Mexico, much of the Caribbean Sea, and the Atlantic Ocean
from 60W westward. Precipitation: isolated moderate to locally
strong rainshowers cover parts of the NW corner of the Gulf of
Mexico, and between 84W and 90W.

A cold front will reach the Texas coast early on Sunday, preceded
by a pre-frontal squall line. The cold front will reach from the
Mississippi Delta to the Bay of Campeche on Sunday night, from
the Florida Big Bend to the Yucatan Peninsula on Monday night,
and then slow down in its forward speed somewhat on Tuesday
passing across the Straits of Florida on Tuesday night.

CARIBBEAN SEA...

An upper level trough cuts across NW Cuba into the NW sections of
Costa Rica. Precipitation: isolated moderate to locally strong
rainshowers are in the SW corner of the Caribbean Sea, from 13N
southward from 74W westward. Earlier rainshowers that were
covering the coastal areas and some inland areas of Colombia and
NW Venezuela, have weakened and dissipated for the moment.
Scattered moderate to strong rainshowers are in Colombia and
Venezuela, from 06N to 10N in Lake Maracaibo, 70W and 75W.
The Caribbean Sea and the Atlantic Ocean, from Jamaica and 18N
northward, from 52W westward in the Atlantic Ocean is covered by
isolated moderate to locally strong rainshowers, that are in the
area of the upper level cyclonic wind flow of the NW Cuba-to-Costa
Rica trough.

Atlantic Ocean high pressure will maintain fresh-to-locally
strong trade winds across the south central Caribbean Sea, and
along the southern coast of Hispaniola, through early Sunday.
Strong nocturnal trade winds are expected to resume on Sunday
night along the north coast of the South America. A weakening cold
front will pass southeastward through the Yucatan Basin on
Tuesday night, and wash out across the NW Caribbean Sea during the
middle of the next week.

ATLANTIC OCEAN...

A cold front passes through 32N56W, to 29N63W, to 27N70W. The
front becomes stationary, and it continues from 27N70W, to 28N78W,
and then across Florida just to the north of Lake Okeechobee, and
into the Gulf of Mexico. The Caribbean Sea and the Atlantic Ocean,
from Jamaica and 18N northward, from 52W westward in the Atlantic
Ocean is covered by isolated moderate to locally strong
rainshowers, that are in the area of the upper level cyclonic wind
flow of the NW Cuba-to-Costa Rica trough.

An upper level cyclonic circulation center is near 33N13W. Upper
level cyclonic wind flow covers the Atlantic Ocean from 20N
northward from 30W eastward. A 1008 mb low pressure center is near
35N13W. A frontal boundary is inland in northern sections of
Africa. No significant deep convective precipitation is apparent
in satellite imagery.

An upper level cyclonic circulation center is near 24N42W.
Weak cyclonic wind flow covers the Atlantic Ocean from 20N
northward between 40W and 51W. No significant deep convective
precipitation is apparent in satellite imagery.

The current frontal boundary will lift northward on Sunday. Near-
gale force SE wind flow is forecast to develop across the
forecast waters north of the Bahamas on Monday, in association
with a surface low pressure center that will be shifting eastward
across the southeast United States. The surface low will move
northeastward along the Georgia and South Carolina coasts on
Tuesday, and drag a a couple of weak cold fronts across the
northwest waters during the middle of the next week.

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

$$
MT

...HIGH RIP CURRENT RISK REMAINS IN EFFECT FROM 7 AM CDT SUNDAY THROUGH MONDAY MORNING... * WHERE...Gulf beaches of Alabama and the western Florida panhandle. * IMPACTS...Frequent life-threatening rip currents are expected. The surf is dangerous for all levels of swimmers. Rip Current Statement 2018-04-21T23:54:00-05:00 2018-04-23T07:00:00-05:00 Actual Alert Met Expected Moderate Likely Baldwin Coastal; Mobile Coastal FIPS6 001003 001097 UGC ALZ265 ALZ266 VTEC /O.CON.KMOB.RP.S.0011.180422T1200Z-180423T1200Z/

...HIGH RIP CURRENT RISK REMAINS IN EFFECT FROM 7 AM CDT SUNDAY THROUGH MONDAY MORNING... * WHERE...Gulf beaches of Alabama and the western Florida panhandle. * IMPACTS...Frequent life-threatening rip currents are expected. The surf is dangerous for all levels of swimmers. Rip Current Statement 2018-04-22T00:54:00-04:00 2018-04-23T08:00:00-04:00 Actual Alert Met Expected Moderate Likely Escambia Coastal; Okaloosa Coastal; Santa Rosa Coastal FIPS6 012033 012091 012113 UGC FLZ202 FLZ204 FLZ206 VTEC /O.CON.KMOB.RP.S.0011.180422T1200Z-180423T1200Z/

...The flood warning continues for the following rivers in North Dakota... Little Muddy River near Williston affecting Williams County. Minor flooding is forecast on the Little Muddy River near Williston. .Warmer temperatures over the past few days have resulted in enough snow melt to push the Little Muddy River into minor flood stage each Flood Warning 2018-04-21T23:00:00-05:00 2018-04-22T18:42:00-05:00 Actual Alert Met Expected Moderate Likely Williams 48.3,-103.69 48.32,-103.56 48.1,-103.58 48.11,-103.61 48.27,-103.62 48.3,-103.69 FIPS6 038105 UGC NDC105 VTEC /O.CON.KBIS.FL.W.0006.000000T0000Z-180422T2342Z/ /LMCN8.1.SM.180421T1024Z.180421T1230Z.180421T1800Z.NO/

...SPECIAL WEATHER STATEMENT... At 1026 PM CDT, Doppler radar was tracking a strong thunderstorm near Votaw, or near Thicket, moving east at 25 mph. Winds in excess of 30 mph will be possible with this storm. Locations impacted include... Daisetta, Hardin, Moss Hill, Romayor and Rye. Special Weather Statement 2018-04-21T22:26:00-05:00 2018-04-21T22:45:00-05:00 Actual Alert Met Expected Minor Observed Liberty; Polk 30.04,-94.6 30.24,-94.97 30.51,-94.81 30.49,-94.54 30.49,-94.73 30.4,-94.7 30.11,-94.6 30.11,-94.53 30.04,-94.6 FIPS6 048291 048373 UGC TXZ179 TXZ200 VTEC

...SIGNIFICANT WEATHER ADVISORY FOR SOUTHWESTERN TYLER AND NORTHERN HARDIN COUNTIES UNTIL 1100 PM CDT... At 1022 PM CDT, Doppler radar was tracking a strong thunderstorm over Votaw, or near Thicket, moving east at 40 mph. Winds in excess of 40 mph will be possible with this storm. Locations impacted include... Special Weather Statement 2018-04-21T22:23:00-05:00 2018-04-21T23:00:00-05:00 Actual Alert Met Expected Minor Observed Hardin; Tyler 30.49,-94.54 30.62,-94.57 30.75,-94.34 30.29,-94.18 30.31,-94.67 30.49,-94.73 30.49,-94.54 FIPS6 048199 048457 UGC TXZ180 TXZ201 VTEC

...SPECIAL WEATHER STATEMENT... At 1020 PM CDT, Doppler radar was tracking a strong thunderstorm near East Bernard, or 12 miles west of Rosenberg, moving east at 30 mph. Half inch hail and winds in excess of 30 mph will be possible with this storm. Locations impacted include... Special Weather Statement 2018-04-21T22:20:00-05:00 2018-04-21T23:15:00-05:00 Actual Alert Met Expected Minor Observed Brazoria; Fort Bend; Harris; Wharton 29.37,-96.23 29.63,-96 29.61,-95.37 29.27,-95.4 29.37,-96.23 FIPS6 048039 048157 048201 048481 UGC TXZ213 TXZ226 TXZ227 TXZ237 VTEC

...SIGNIFICANT WEATHER ADVISORY FOR SOUTHEASTERN HEMPSTEAD...EASTERN LAFAYETTE...NEVADA AND COLUMBIA COUNTIES...WEBSTER...SOUTHWESTERN CADDO...NORTHWESTERN CLAIBORNE AND BOSSIER PARISHES UNTIL 1100 PM CDT... At 1016 PM CDT, Doppler radar was tracking strong thunderstorms along a line extending from near Hope to 7 miles northeast of Canfield to Special Weather Statement 2018-04-21T22:17:00-05:00 2018-04-21T23:00:00-05:00 Actual Alert Met Expected Minor Observed Columbia; Hempstead; Lafayette; Nevada 33.8,-93.18 33.82,-93.14 33.78,-93.1 33.38,-93.12 33.38,-92.98 33.18,-92.98 32.81,-93.14 32.37,-93.47 32.32,-93.69 32.34,-93.78 32.28,-93.86 32.23,-94.04 32.28,-94.04 32.54,-93.79 32.78,-93.67 33.02,-93.61 33.22,-93.6 33.64,-93.7 33.85,-93.3 33.8,-93.18 FIPS6 005027 005057 005073 005099 UGC ARZ060 ARZ061 ARZ071 ARZ072 VTEC

...SIGNIFICANT WEATHER ADVISORY FOR SOUTHEASTERN HEMPSTEAD...EASTERN LAFAYETTE...NEVADA AND COLUMBIA COUNTIES...WEBSTER...SOUTHWESTERN CADDO...NORTHWESTERN CLAIBORNE AND BOSSIER PARISHES UNTIL 1100 PM CDT... At 1016 PM CDT, Doppler radar was tracking strong thunderstorms along a line extending from near Hope to 7 miles northeast of Canfield to Special Weather Statement 2018-04-21T22:17:00-05:00 2018-04-21T23:00:00-05:00 Actual Alert Met Expected Minor Observed Bossier; Caddo; Claiborne; Webster 33.8,-93.18 33.82,-93.14 33.78,-93.1 33.38,-93.12 33.38,-92.98 33.18,-92.98 32.81,-93.14 32.37,-93.47 32.32,-93.69 32.34,-93.78 32.28,-93.86 32.23,-94.04 32.28,-94.04 32.54,-93.79 32.78,-93.67 33.02,-93.61 33.22,-93.6 33.64,-93.7 33.85,-93.3 33.8,-93.18 FIPS6 022015 022017 022027 022119 UGC LAZ001 LAZ002 LAZ003 LAZ004 VTEC

...The flood warning continues for the following rivers in Indiana... Kentucky...Illinois...Missouri... Ohio River at Newburgh Dam...Mount Vernon...J.T. Myers Dam...Shawneetown... Brookport Dam...Grand Chain Dam...and Cairo .Minor flooding continues along parts of the Ohio River. Small rises are forecast over the next few days, with crests expected next week due to Flood Warning 2018-04-21T22:09:00-05:00 2018-04-26T14:30:00-05:00 Actual Alert Met Expected Moderate Likely Gallatin; Hardin 37.78,-88.11 37.73,-88 37.57,-88 37.53,-88.18 37.71,-88.21 37.78,-88.11 FIPS6 017059 017069 UGC ILC059 ILC069 VTEC /O.CON.KPAH.FL.W.0047.000000T0000Z-180426T1930Z/ /SHNI2.2.ER.180331T1052Z.180412T1745Z.180426T1330Z.NO/

...The flood warning continues for the following rivers in Indiana... Kentucky...Illinois...Missouri... Ohio River at Newburgh Dam...Mount Vernon...J.T. Myers Dam...Shawneetown... Brookport Dam...Grand Chain Dam...and Cairo .Minor flooding continues along parts of the Ohio River. Small rises are forecast over the next few days, with crests expected next week due to Flood Warning 2018-04-21T22:09:00-05:00 2018-04-28T07:51:00-05:00 Actual Alert Met Expected Moderate Likely Massac 37.27,-88.84 37.15,-88.61 37.09,-88.72 37.14,-88.88 37.27,-88.84 FIPS6 017127 UGC ILC127 VTEC /O.CON.KPAH.FL.W.0048.000000T0000Z-180428T1251Z/ /BRKI2.1.ER.180331T0400Z.180413T0300Z.180428T0651Z.NO/

...The flood warning continues for the following rivers in Indiana... Kentucky...Illinois...Missouri... Ohio River at Newburgh Dam...Mount Vernon...J.T. Myers Dam...Shawneetown... Brookport Dam...Grand Chain Dam...and Cairo .Minor flooding continues along parts of the Ohio River. Small rises are forecast over the next few days, with crests expected next week due to Flood Warning 2018-04-21T22:09:00-05:00 2018-04-28T15:00:00-05:00 Actual Alert Met Expected Moderate Likely Massac; Pulaski 37.27,-89.08 37.27,-88.84 37.14,-88.88 37.09,-89.07 37.17,-89.16 37.27,-89.08 FIPS6 017127 017153 UGC ILC127 ILC153 VTEC /O.CON.KPAH.FL.W.0044.000000T0000Z-180428T2000Z/ /GCTI2.2.ER.180330T1300Z.180412T1300Z.180428T1400Z.NO/

...The flood warning continues for the following rivers in Indiana... Kentucky...Illinois...Missouri... Ohio River at Newburgh Dam...Mount Vernon...J.T. Myers Dam...Shawneetown... Brookport Dam...Grand Chain Dam...and Cairo .Minor flooding continues along parts of the Ohio River. Small rises are forecast over the next few days, with crests expected next week due to Flood Warning 2018-04-21T22:09:00-05:00 2018-04-28T22:00:00-05:00 Actual Alert Met Expected Moderate Likely Alexander; Pulaski 37.09,-89.46 37.17,-89.16 37.09,-89.07 36.8,-89 36.51,-89.18 37.09,-89.46 FIPS6 017003 017153 UGC ILC003 ILC153 VTEC /O.CON.KPAH.FL.W.0040.000000T0000Z-180429T0300Z/ /CIRI2.1.ER.180330T0504Z.180413T0200Z.180428T2100Z.NO/

...The flood warning continues for the following rivers in Indiana... Kentucky...Illinois...Missouri... Ohio River at Newburgh Dam...Mount Vernon...J.T. Myers Dam...Shawneetown... Brookport Dam...Grand Chain Dam...and Cairo .Minor flooding continues along parts of the Ohio River. Small rises are forecast over the next few days, with crests expected next week due to Flood Warning 2018-04-21T23:09:00-04:00 2018-04-25T16:00:00-04:00 Actual Alert Met Expected Moderate Likely Posey 37.78,-88.11 37.92,-87.96 37.8,-87.84 37.73,-88 37.78,-88.11 FIPS6 018129 UGC INC129 VTEC /O.CON.KPAH.FL.W.0050.000000T0000Z-180425T2000Z/ /UNWK2.1.ER.180401T1615Z.180411T2045Z.180425T1400Z.NO/

...The flood warning continues for the following rivers in Indiana... Kentucky...Illinois...Missouri... Ohio River at Newburgh Dam...Mount Vernon...J.T. Myers Dam...Shawneetown... Brookport Dam...Grand Chain Dam...and Cairo .Minor flooding continues along parts of the Ohio River. Small rises are forecast over the next few days, with crests expected next week due to Flood Warning 2018-04-21T23:09:00-04:00 2018-04-25T16:43:00-04:00 Actual Alert Met Expected Moderate Likely Spencer; Vanderburgh; Warrick 38.01,-87.45 37.9,-87.21 37.8,-87.28 37.87,-87.45 38.01,-87.45 FIPS6 018147 018163 018173 UGC INC147 INC163 INC173 VTEC /O.CON.KPAH.FL.W.0046.000000T0000Z-180425T2043Z/ /NBGI3.1.ER.180401T0225Z.180409T1915Z.180425T1443Z.NO/

...The flood warning continues for the following rivers in Indiana... Kentucky...Illinois...Missouri... Ohio River at Newburgh Dam...Mount Vernon...J.T. Myers Dam...Shawneetown... Brookport Dam...Grand Chain Dam...and Cairo .Minor flooding continues along parts of the Ohio River. Small rises are forecast over the next few days, with crests expected next week due to Flood Warning 2018-04-21T23:09:00-04:00 2018-04-26T12:40:00-04:00 Actual Alert Met Expected Moderate Likely Posey; Vanderburgh 37.92,-87.96 37.98,-87.84 37.96,-87.7 37.81,-87.69 37.8,-87.84 37.92,-87.96 FIPS6 018129 018163 UGC INC129 INC163 VTEC /O.CON.KPAH.FL.W.0049.000000T0000Z-180426T1640Z/ /MTVI3.1.ER.180401T1100Z.180409T1100Z.180426T1040Z.NO/

...The flood warning continues for the following rivers in Indiana... Kentucky...Illinois...Missouri... Ohio River at Newburgh Dam...Mount Vernon...J.T. Myers Dam...Shawneetown... Brookport Dam...Grand Chain Dam...and Cairo .Minor flooding continues along parts of the Ohio River. Small rises are forecast over the next few days, with crests expected next week due to Flood Warning 2018-04-21T23:09:00-04:00 2018-04-25T16:00:00-04:00 Actual Alert Met Expected Moderate Likely Union 37.78,-88.11 37.92,-87.96 37.8,-87.84 37.73,-88 37.78,-88.11 FIPS6 021225 UGC KYC225 VTEC /O.CON.KPAH.FL.W.0050.000000T0000Z-180425T2000Z/ /UNWK2.1.ER.180401T1615Z.180411T2045Z.180425T1400Z.NO/