322  
AXNT20 KNHC 191810  
TWDAT  
 
TROPICAL WEATHER DISCUSSION  
NWS NATIONAL HURRICANE CENTER MIAMI FL  
1815 UTC SUN JAN 19 2025  
 
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  
1750 UTC.  
   
..SPECIAL FEATURES  
 
...ATLANTIC OCEAN GALE-FORCE WIND WARNING AND GULF OF MEXICO  
GALE-FORCE WIND WARNING...  
 
A COLD FRONT PASSES THROUGH THE FLORIDA BIG BEND, TO THE CENTRAL  
GULF OF MEXICO, AND TO THE SW CORNER OF THE GULF CLOSE TO 20N97W.  
THE FRONT CONTINUES NORTHWESTWARD, INLAND IN MEXICO. SURFACE HIGH  
PRESSURE COVERS THE GULF TO THE NORTHWEST OF THE COLD FRONT.  
GALE-FORCE NORTHERLY WINDS ARE IN THE GULF OF MEXICO FROM 22N TO  
28N FROM 95W WESTWARD. SW GALE-FORCE WINDS ARE TO THE EAST OF  
FLORIDA FROM 29N NORTHWARD FROM 77W WESTWARD. STRONG TO NEAR GALE-  
FORCE NORTHERLY WINDS ARE ELSEWHERE FROM 93W WESTWARD. FRESH TO  
STRONG NW WINDS ARE FROM 25N NORTHWARD FROM THE COLD FRONT  
NORTHWESTWARD. MODERATE TO FRESH SW WINDS ARE FROM 24N TO THE COLD  
FRONT BETWEEN FLORIDA AND THE COLD FRONT. ROUGH SEAS ARE FROM 90W  
WESTWARD. MODERATE SEAS ARE IN THE REMAINDER OF THE GULF OF  
MEXICO.  
 
PLEASE, REFER TO THE LATEST NWS HIGH SEAS FORECAST, THAT IS  
ISSUED BY THE NATIONAL HURRICANE CENTER, AT THE WEBSITE:  
WWW.NHC.NOAA.GOV/TEXT/MIAHSFAT2.SHTML, FOR DETAILS.  
   
..MONSOON TROUGH/ITCZ  
 
 
THE MONSOON TROUGH PASSES THROUGH THE COASTAL PLAINS OF LIBERIA  
CLOSE TO 06N11W, AND IT CURVES TO 04N18W. THE ITCZ CONTINUES FROM  
04N18W, TO 02N23W, TO THE EQUATOR ALONG 30W. PRECIPITATION: WIDELY  
SCATTERED TO SCATTERED MODERATE/ISOLATED STRONG IS FROM 05N  
SOUTHWARD BETWEEN 36W AND THE COAST OF NE SOUTH AMERICA. THE  
PRECIPITATION IS IN THE AREA IN WHICH WINDS OF FASTER SPEEDS ARE  
APPROACHING WINDS OF A COMPARATIVELY SLOWER SPEED.  
 
GULF OF MEXICO...  
 
PLEASE, REFER TO THE SPECIAL FEATURES SECTION, FOR INFORMATION  
ABOUT THE GALE-FORCE WIND WARNING THAT WAS ISSUED FOR THE WESTERN  
SECTIONS OF THE GULF OF MEXICO. ALL THE INFORMATION ABOUT THE GULF  
OF MEXICO IS IN THE SPECIAL FEATURES SECTION.  
 
A COLD FRONT EXTENDS FROM NEAR APALACHICOLA, FLORIDA  
SOUTHWESTWARD TO 25N90W AND TO INLAND MEXICO JUST N OF VERACRUZ.  
STRONG TO NEAR GALE FORCE NORTHERLY WINDS WILL PREVAIL N OF THE  
FRONT THROUGH TONIGHT AS IT MOVES SE AND GRADUALLY STALLS ACROSS  
THE YUCATAN CHANNEL AND STRAITS OF FLORIDA MON THROUGH MON NIGHT.  
A BRIEF PERIOD OF NORTHERLY GALES IS EXPECTED OFFSHORE OF TAMPICO  
AND VERACRUZ THIS AFTERNOON. LOW PRESSURE IS EXPECTED TO FORM OVER  
THE NW GULF ON MON NIGHT, THEN TRACK SOUTHEASTWARD THROUGH WED,  
DRAGGING A STRONG COLD FRONT ACROSS THE ENTIRE BASIN. STRONG HIGH  
PRESSURE BEHIND THE FRONT WILL INDUCE GALE FORCE NORTH TO  
NORTHEAST WINDS EXPANDING ACROSS MUCH OF THE NORTHERN AND WESTERN  
GULF TUE THROUGH TUE NIGHT, WITH THE POTENTIAL FOR GUSTS TO STORM  
FORCE ACROSS PORTIONS OF THE WEST AND CENTRAL GULF. MARINERS ARE  
URGED TO EXERCISE EXTREME CAUTION ACROSS THE BASIN, DUE TO THE  
EXPANSIVE AREA OF GALE FORCE WINDS AND A LARGE AREA OF VERY ROUGH  
TO HIGH SEAS THAT IS EXPECTED TO ACCOMPANY THIS NEXT FRONTAL  
SYSTEM.  
 
CARIBBEAN SEA...  
 
STRONG TO NEAR GALE-FORCE NE TO E WINDS, AND ROUGH SEAS, ARE FROM  
11N TO 18N BETWEEN 67W AND 78W. FRESH NE TO E WINDS, AND ROUGH  
SEAS IN NE TO E SWELL, ARE ELSEWHERE FROM 18N SOUTHWARD BETWEEN  
64W AND 80W. MOSTLY FRESH TO SOME STRONG NE WINDS, AND MODERATE  
SEAS, ARE FROM 67W EASTWARD. MODERATE TO FRESH SURFACE  
ANTICYCLONIC WIND FLOW, AND SLIGHT SEAS, ARE FROM 80W WESTWARD.  
 
THE 24-HOUR RAINFALL TOTALS IN INCHES, FOR THE PERIOD THAT ENDED  
AT 19/1200 UTC, ARE: 0.33 IN TRINIDAD; 0.16 IN SAN JUAN IN PUERTO  
RICO; AND 0.08 IN ST. THOMAS IN THE VIRGIN ISLANDS. THIS  
INFORMATION IS FROM THE PAN AMERICAN TEMPERATURE AND PRECIPITATION  
TABLES/MIATPTPAN.  
 
FRESH NORTHEAST TO EAST WINDS WILL PREVAIL ACROSS MOST OF THE  
CARIBBEAN AND TROPICAL ATLANTIC WATERS INTO THE UPCOMING WEEK,  
WITH LOCALLY STRONG WINDS DEVELOPING EACH NIGHT OFFSHORE OF  
COLOMBIA, AND THROUGH THE ATLANTIC PASSAGES AND DOWNWIND OF  
HISPANIOLA. EASTERLY TRADE WIND SWELL WILL PRODUCE ROUGH SEAS  
THROUGH THE ATLANTIC PASSAGES THROUGH THE UPCOMING WEEK. A GULF OF  
MEXICO COLD FRONT WILL SINK SLOWLY SOUTHWARD ACROSS THE STRAITS  
OF FLORIDA AND YUCATAN CHANNEL TONIGHT, THEN STALL AND WEAKEN  
ACROSS THE FAR NORTHWESTERN CARIBBEAN AND WESTERN CUBA MON THROUGH  
TUE. FRESH TO STRONG EAST WINDS AND BUILDING SEAS WILL DOMINATE  
MOST OF THE BASIN MON NIGHT THROUGH WED AS STRONG HIGH PRESSURE  
BUILDS NORTH OF THE COLD FRONT.  
 
ATLANTIC OCEAN...  
 
PLEASE, REFER TO THE SPECIAL FEATURES SECTION, FOR INFORMATION  
ABOUT THE GALE-FORCE WIND WARNING THAT WAS ISSUED FOR THE GULF OF  
MEXICO COLD FRONT, AND THE GALE-FORCE WINDS THAT ARE JUST TO THE  
EAST OF FLORIDA. ALL THE INFORMATION ABOUT THE GULF OF MEXICO IS  
IN THE SPECIAL FEATURES SECTION. THE 24-HOUR RAINFALL TOTALS IN  
INCHES, FOR THE PERIOD THAT ENDED AT 19/1200 UTC, ARE: 0.03 IN  
FREEPORT IN THE BAHAMAS.  
 
A COLD FRONT PASSES THROUGH 31N70W, TO 27N76W. FRESH TO STRONG  
SOUTHERLY WINDS, AND MOSTLY MODERATE TO POSSIBLY SOME ROUGH SEAS,  
ARE FROM 27N NORTHWARD BETWEEN 60W AND 74W. MODERATE TO FRESH  
SURFACE ANTICYCLONIC WIND FLOW IS ELSEWHERE BETWEEN 60W AND THE  
BAHAMAS. MODERATE SEAS ARE ELSEWHERE FROM 60W WESTWARD.  
 
A COLD FRONT PASSES THROUGH 31N28W, TO 25N40W, 22N53W. A SURFACE  
TROUGH CONTINUES FROM 22N53W, TO 19N65W JUST TO THE NE OF PUERTO  
RICO. ROUGH SEAS ARE FROM 24N NORTHWARD FROM 55W EASTWARD.  
MODERATE SEAS ARE IN THE REMAINDER OF THE ATLANTIC OCEAN.  
FRESH TO STRONG NE WINDS ARE FROM THE FRONTAL BOUNDARY SOUTHWARD  
FROM 40W WESTWARD. MOSTLY FRESH TO SOME STRONG NE WINDS ARE FROM  
23N SOUTHWARD TO THE MONSOON TROUGH/THE ITCZ FROM 40W EASTWARD.  
MODERATE TO FRESH SURFACE ANTICYCLONIC WIND FLOW IS FROM THE  
FRONTAL BOUNDARY NORTHWARD BETWEEN 40W AND 60W. MODERATE TO FRESH  
SURFACE CYCLONIC WIND FLOW IS FROM 25N NORTHWARD FROM 40W  
EASTWARD.  
 
FRESH TO LOCALLY STRONG SOUTH TO SOUTHWEST WINDS AND ROUGH SEAS  
PREVAIL N OF 27N BETWEEN 65W AND 80W IN ADVANCE OF A COLD FRONT  
ACROSS THE NE GULF OF MEXICO. THIS STRONG COLD FRONT WILL MOVE  
INTO THE NORTHWESTERN WATERS LATE TODAY, REACH FROM NEAR BERMUDA  
TO WESTERN CUBA BY MON EVENING THEN STALL AND WEAKEN ON TUE.  
SCATTERED TO NUMEROUS SHOWERS AND THUNDERSTORMS, SOME STRONG, ARE  
EXPECTED TO ACCOMPANY THIS FRONT THROUGH THIS EVENING. MODERATE TO  
FRESH TRADES WILL PREVAIL ELSEWHERE S OF 23N THROUGH THE PERIOD,  
WITH WINDS PULSING TO STRONG SPEEDS EAST OF THE WINDWARD ISLANDS  
AT TIMES. ANOTHER STRONG COLD FRONT IS EXPECTED TO MOVE OFF THE  
SOUTHEASTERN U.S. COAST TUE NIGHT, AND REACH FROM NEAR 31N73W TO  
THE FLORIDA KEYS BY WED MORNING. THIS FRONT WILL BE FOLLOWED BY  
STRONG TO NEAR-GALE FORCE NORTH WINDS AND BUILDING SEAS NORTH OF  
CUBA AND W OF ABOUT 70W THROUGH WED. WINDS WITH FREQUENT GUSTS TO  
GALE-FORCE MAY OCCUR N OF 29N W OF 77W TUE NIGHT.  
 
 
MT/SS  
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