439  
AXNT20 KNHC 101758  
TWDAT  
 
TROPICAL WEATHER DISCUSSION  
NWS NATIONAL HURRICANE CENTER MIAMI FL  
1805 UTC WED APR 10 2024  
 
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 31N. THE FOLLOWING INFORMATION IS BASED ON SATELLITE  
IMAGERY, WEATHER OBSERVATIONS, RADAR AND METEOROLOGICAL ANALYSIS.  
 
BASED ON 1200 UTC SURFACE ANALYSIS AND SATELLITE IMAGERY THROUGH  
1700 UTC.  
   
..SPECIAL FEATURES
 
 
   
..GULF OF MEXICO GALE-FORCE WINDS
 
 
EXPECT GALE NW TO N WINDS, AND ROUGH SEAS FROM 22N TO 23N BETWEEN  
96.5W AND 98W. GALE-FORCE WINDS ALSO ARE NEAR THE MOUTH OF THE  
MISSISSIPPI RIVER. NW TO N GALE-FORCE WINDS, AND BUILDING MODERATE  
TO ROUGH SEAS, ARE GOING TO BE STARTING SOON, FROM 19N TO 21N  
BETWEEN 95W AND 97W.  
 
A COLD FRONT EXTENDS FROM AN UPPER TEXAS GULF COAST 1002 MB LOW  
PRESSURE CENTER, TO THE MIDDLE TEXAS GULF COAST, TO THE COAST OF  
MEXICO NEAR 22N97W, TO 22N101W IN MEXICO. A STATIONARY FRONT  
EXTENDS EASTWARD FROM THE 1002 MB LOW PRESSURE CENTER, TO THE  
COASTAL PLAINS OF ALABAMA. ONE SURFACE TROUGH IS ALONG 30N93W  
22N97W. A SECOND SURFACE TROUGH IS ALONG 20N/21N BETWEEN 89W AND  
98W. PRECIPITATION: SCATTERED TO NUMEROUS STRONG IS FROM 29N  
NORTHWARD BETWEEN THE FLORIDA PANHANDLE AND SE LOUISIANA.  
ISOLATED MODERATE TO LOCALLY STRONG IS ELSEWHERE TO THE EAST OF  
THE 30N93W 22N97W SURFACE TROUGH.  
 
PLEASE, READ THE LATEST HIGH SEAS FORECAST, AT  
NHC.NOAA.GOV/TEXT/MIAHSFAT2.SHTML, FOR DETAILS.  
   
..WESTERN ATLANTIC OCEAN GALE-FORCE WINDS
 
 
THE 30-HOUR MARINE FORECAST, STARTING ON THURSDAY IN THE  
AFTERNOON, CONSISTS OF A COLD FRONT TO BE AT THE COAST OF NE  
FLORIDA. EXPECT GALE-FORCE S WINDS, AND ROUGH TO VERY ROUGH SEAS,  
FROM 30.5N TO 31N BETWEEN 77W AND 80W. THE GALE-FORCE WINDS ARE  
FORECAST TO END BY FRIDAY MORNING.  
 
PLEASE, READ THE LATEST HIGH SEAS FORECAST, AT  
NHC.NOAA.GOV/TEXT/MIAHSFAT2.SHTML, FOR DETAILS.  
   
..MONSOON TROUGH/ITCZ
 
 
THE MONSOON TROUGH PASSES THROUGH THE COASTAL PLAINS BORDER OF  
SIERRA LEONE AND LIBERIA, TO THE EQUATOR ALONG 21W. THE ITCZ  
CONTINUES FROM THE EQUATOR ALONG 21W, TO THE EQUATOR ALONG 43W, TO  
01N48W. PRECIPITATION: WIDELY SCATTERED MODERATE TO ISOLATED  
STRONG IS FROM 13N SOUTHWARD FROM 60W EASTWARD.  
   
..GULF OF MEXICO
 
 
PLEASE, READ THE SPECIAL FEATURES SECTION, FOR DETAILS ABOUT THE  
GALE-FORCE WIND WARNING, FOR MULTIPLE AREAS.  
 
STRONG SE TO S WINDS ARE TO THE EAST OF THE SURFACE TROUGH AND THE COLD  
FRONT. ROUGH SEAS ARE BETWEEN THE FLORIDA PANHANDLE AND THE  
LOUISIANA/TEXAS BORDER; AND IN THE SW CORNER OF THE GULF. MODERATE  
SEAS ARE IN THE REMAINDER OF THE GULF OF MEXICO.  
 
A COLD FRONT HAS ENTERED THE FAR WESTERN GULF. A PRE- FRONTAL  
TROUGH IS PRODUCING STRONG TO SEVERE THUNDERSTORMS OVER THE NORTH-  
CENTRAL TO NW GULF. STRONG SE TO S WINDS WILL PREVAIL EAST OF A  
COLD FRONT. THE FRONT WILL REACH FROM THE FLORIDA PANHANDLE TO THE  
NW COAST OF THE YUCATAN PENINSULA BY THU MORNING, THEN MOVE SE OF  
THE AREA FRI MORNING. WINDS WILL BRIEFLY REACH GALE FORCE  
OFFSHORE TAMPICO, MEXICO THIS MORNING AND OFF VERACRUZ, MEXICO  
THIS AFTERNOON BEHIND THE FRONT. FREQUENT GUSTS TO GALE FORCE ARE  
POSSIBLE WITH THUNDERSTORM ACTIVITY OVER THE NORTH- CENTRAL TO  
NORTHEASTERN GULF THROUGH THU MORNING. HIGH PRESSURE WILL BUILD IN  
THE WAKE OF THE FRONT WITH IMPROVING CONDITIONS THROUGH THE  
UPCOMING WEEKEND.  
   
..CARIBBEAN SEA
 
 
A DISSIPATING COLD FRONT PASSES THROUGH 17N60W IN THE ATLANTIC  
OCEAN, TO 16N70W, TO JAMAICA, AND 19N80W. PRECIPITATION:  
BROKEN TO OVERCAST MULTILAYERED CLOUDS, AND ISOLATED MODERATE TO  
LOCALLY STRONG, ARE FROM 14N TO 22N BETWEEN 60W AND 80W. THE  
24-HOUR RAINFALL TOTALS IN INCHES, FOR THE PERIOD THAT ENDED AT  
10/1200 UTC, ARE: 0.04 IN SAN JUAN IN PUERTO RICO. THIS  
INFORMATION IS FROM THE PAN AMERICAN TEMPERATURE AND PRECIPITATION  
TABLES/MIATPTPAN.  
 
PRECIPITATION: SCATTERED MODERATE TO ISOLATED STRONG IS IN THE  
COASTAL WATERS THAT ARE BETWEEN PANAMA AND SE NICARAGUA BETWEEN  
81W AND 84W. A SURFACE TROUGH IS NEAR 10N76W IN NORTHERN COLOMBIA,  
PASSING BEYOND 07N84W IN THE PACIFIC OCEAN.  
 
NEAR GALE-FORCE EASTERLY WINDS ARE FROM 11N TO 13N BETWEEN 74W AND  
77W. STRONG NE TO E WINDS ARE ELSEWHERE BETWEEN 70W AND 80W. FRESH  
TO STRONG NE WINDS ARE FROM 15N TO 18N BETWEEN 66W AND 68W.  
MODERATE TO FRESH NE TO E WINDS ARE IN THE REMAINDER OF THE WATERS  
THAT ARE FROM 80W EASTWARD. STRONG TO NEAR GALE-FORCE SE WINDS  
WERE IN THE NW CORNER OF THE AREA FROM HONDURAS NORTHWARD FROM 84W  
WESTWARD. FRESH NE TO E WINDS ARE IN THE SW CORNER OF THE  
CARIBBEAN SEA. ROUGH SEAS ARE FROM PANAMA TO 18N BETWEEN 70W AND  
81W. THE COMPARATIVELY HIGHEST SEAS TO 12 FEET ARE NEAR 12N78W.  
ROUGH SEAS TO 11 FEET ARE FROM 83W WESTWARD IN THE NW CORNER OF  
THE AREA. MODERATE SEAS COVER THE REST OF THE CARIBBEAN SEA.  
 
FRESH TO STRONG WINDS WILL PREVAIL ACROSS THE SOUTH CENTRAL  
CARIBBEAN, PULSING TO NEAR GALE-FORCE AT NIGHT OFF OF COLOMBIA THE  
NEXT SEVERAL NIGHTS. GALE FORCE WINDS ARE POSSIBLE OFFSHORE  
COLOMBIA ON FRIDAY NIGHT. FRESH TO STRONG WINDS ARE EXPECTED IN  
THE WINDWARD PASSAGE, SOUTH OF HISPANIOLA, AND IN THE GULF OF  
HONDURAS THROUGH THU BEFORE DIMINISHING. A COLD FRONT IS EXPECTED  
TO REACH THE YUCATAN CHANNEL THU NIGHT, THEN STALL AND WEAKEN OVER  
THE NW CARIBBEAN LATE FRI INTO SAT.  
   
..ATLANTIC OCEAN
 
 
PLEASE, READ THE SPECIAL FEATURES SECTION, FOR DETAILS ABOUT THE  
GALE-FORCE WIND WARNING, FOR THE WESTERN ATLANTIC OCEAN.  
 
A 1024 MB HIGH PRESSURE CENTER IS NEAR 31N66W. MOSTLY MODERATE TO  
SOME FRESH ANTICYCLONIC WINDS ARE FROM 26N SOUTHWARD FROM 60W  
WESTWARD. MODERATE OR SLOWER WINDS ARE IN THE REMAINING WATERS  
THAT ARE FROM 60W WESTWARD. MODERATE TO ROUGH SEAS ARE FROM THE  
BAHAMAS TO 26N BETWEEN 72W AND 75W. MODERATE SEAS ARE ELSEWHERE  
FROM 70W WESTWARD.  
 
A COLD FRONT PASSES THROUGH 31N36W, TO 25N40W, TO 21N47W. THE COLD  
FRONT IS DISSIPATING FROM 21N47W, TO 19N50W 18N56W 17N60W. THE  
DISSIPATING COLD FRONT CONTINUES INTO THE CARIBBEAN SEA TO  
JAMAICA. ROUGH SEAS ARE FROM THE DISSIPATING COLD FRONT NORTHWARD  
BETWEEN 50W AND 70W. ROUGH SEAS MOSTLY FROM 10 FEET TO 12 FEET  
ARE FROM THE COLD FRONT NORTHWARD BETWEEN THE COLD FRONT AND 60W.  
PRECIPITATION: ISOLATED MODERATE TO LOCALLY STRONG IS WITHIN 180  
NM ON EITHER SIDE OF THE COLD FRONT.  
 
A SURFACE RIDGE IS ALONG 18N43W 29N33W BEYOND 31N29W. SURFACE  
ANTICYCLONIC WIND FLOW IS FROM 18N NORTHWARD FROM THE COLD FRONT  
EASTWARD. ROUGH TO VERY ROUGH SEAS ARE FROM 24N NORTHWARD FROM 20W  
EASTWARD. ROUGH SEAS ARE TO THE NORTH OF 11N21W 17N28W FROM 28W  
EASTWARD. MODERATE SEAS ARE IN THE REMAINDER OF THE ATLANTIC  
OCEAN. MODERATE TO FRESH NE WINDS COVER MUCH OF THE ATLANTIC  
OCEAN. SOME EXCEPTIONS ARE FOR MODERATE OR SLOWER WINDS FROM 17N  
NORTHWARD BETWEEN 33W AND 45W; FROM 23N NORTHWARD BETWEEN THE COLD  
FRONT AND 57W; AND FROM 15N TO 19N BETWEEN 47W AND 56W.  
 
LARGE NW SWELL ACROSS THE NE WATERS WILL SHIFT E OF THE AREA  
TODAY. HIGH PRESSURE IN THE WESTERN ATLANTIC WILL SHIFT E THROUGH  
THE END OF THE WEEK. THE ASSOCIATED RIDGE WILL SUPPORT FRESH TO  
STRONG WINDS ACROSS THE GREAT BAHAMA BANK AND THE CARIBBEAN  
APPROACHES THROUGH THU. FRESH TO STRONG SOUTHERLY WINDS WILL  
DEVELOP OFFSHORE OF FLORIDA AND N OF THE BAHAMAS THIS EVENING AND  
INCREASE TO STRONG TO NEAR GALE-FORCE LATE TONIGHT THROUGH THU,  
AHEAD OF AN APPROACHING COLD FRONT. THE FRONT IS EXPECTED TO CROSS  
THE FLORIDA PENINSULA THU NIGHT. GALES ARE EXPECTED THU AND THU  
NIGHT N OF 30N AND E OF THE FRONT, AND BRIEFLY N OF 30N W OF THE  
FRONT THU NIGHT. THE FRONT WILL REACH FROM 31N74W TO THE NW  
BAHAMAS FRI MORNING, AND FROM NEAR BERMUDA TO THE CENTRAL BAHAMAS  
SAT MORNING. THE FRONT WILL THEN STALL AND DISSIPATE THROUGH THE  
REMAINDER OF THE UPCOMING WEEKEND.  
 

 
MT/AH  
 
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