726
AXNT20 KNHC 080422
TWDAT
TROPICAL WEATHER DISCUSSION
NWS NATIONAL HURRICANE CENTER MIAMI FL
0615 UTC TUE APR 8 2025
TROPICAL WEATHER DISCUSSION FOR NORTH AMERICA, CENTRAL AMERICA
GULF OF AMERICA, 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 0000 UTC SURFACE ANALYSIS AND SATELLITE IMAGERY THROUGH
0400 UTC.
..SPECIAL FEATURES
CENTRAL ATLANTIC SIGNIFICANT SWELL EVENT: N SWELL THAT CONTINUES
PROPAGATING THROUGH THE CENTRAL ATLANTIC AND TOWARD THE TROPICAL
WATERS IS PRODUCING VERY ROUGH WAVE HEIGHTS 12-16 FT AT 13-14
SECONDS NORTH OF 20N EAST OF 50W. THE SENTINEL 3-B ALTIMETER
MEASURED 13-15 FT NORTH OF 28N ALONG 49W AT 0030Z. THE LEADING
EDGE OF 12 FT WAVE HEIGHTS WILL NOT PROGRESS MUCH FARTHER SOUTH
TONIGHT. THE SWELL WILL DECAY BELOW 12 FT THROUGH TUE NIGHT,
HOWEVER, WAVE HEIGHTS IN EXCESS OF 12 FT WILL PERSIST OVER THE
EASTERN ATLANTIC NORTH OF 26N AND EAST OF 40W THOUGH EARLY ON THU
DUE TO A LOW PRESSURE SYSTEM THAT WILL BE DIVING SOUTH OF 31N
ACCOMPANIED BY FRESH TO STRONG WINDS THAT WILL LIKELY LEAD TO
ADDITIONAL VERY ROUGH WAVE HEIGHTS OVER THOSE WATERS.
PLEASE REFER TO THE LATEST NWS HIGH SEAS FORECAST ISSUED BY THE
NATIONAL HURRICANE CENTER, AT WEBSITE:
HTTPS://WWW.NHC.NOAA.GOV/TEXT/MIAHSFAT2.SHTML FOR MORE DETAILS.
..MONSOON TROUGH/INTERTROPICAL CONVERGENCE ZONE
THE MONSOON TROUGH ENTERS THE ATLANTIC THROUGH THE COAST OF
SENEGAL NEAR 13N17W AND CONTINUES TO 10N19W. THE ITCZ BEGINS NEAR
04N18W AND CONTINUES WESTWARD TO 00N30W THEN TO THE COAST OF
BRAZIL NEAR 03N51W. SCATTERED MODERATE CONVECTION IS NOTED WITHIN
30NM OF A LINE FROM 00N35W TO 06N11W.
..GULF OF AMERICA
AS OF 0300 UTC, A SLOW MOVING COLD FRONT EXTENDS FROM NEAR TAMPA,
FLORIDA TO THE NORTHEASTERN YUCATAN PENINSULA. SCATTERED
THUNDERSTORMS ARE ALONG AND AHEAD OF THIS FRONT OFFSHORE FLORIDA.
FRESH TO STRONG N WINDS FOLLOW THE FRONT OVER MUCH OF THE WESTERN
AND CENTRAL GULF WITH SEAS 8-12 FT IN THE SW AND CENTRAL GULF AND
4-7 FT ELSEWHERE. WINDS AHEAD OF THE FRONT ARE MODERATE TO FRESH
SOUTHWESTERLIES WITH SEAS 3-6 FT.
FOR THE FORECAST, THE AFOREMENTIONED COLD FRONT WILL MOVE TO THE
SOUTHEAST INTO TUE, EXITING THE BASIN. WINDS AND SEAS WILL
DIMINISH STARTING TUE AS HIGH PRESSURE BUILDS INTO THE NORTHERN
GULF IN THE WAKE OF THE COLD FRONT. A SECOND, RELATIVELY WEAK COLD
FRONT, IS LIKELY TO MOVE THROUGH THE GULF LATE THU INTO FRI.
..CARIBBEAN SEA
A MODERATE PRESSURE GRADIENT BETWEEN THE BERMUDA HIGH AND A 1006
MB COLOMBIAN LOW IS FORCING FRESH TO STRONG TRADES OVER THE S
CENTRAL CARIBBEAN WITH GENTLE TO MODERATE WINDS ELSEWHERE. SEAS
ARE 6-8 FT OVER THE S CENTRAL CARIBBEAN AND 3-5 FT ELSEWHERE. A
COLD FRONT HAS REACHED THE EASTERN YUCATAN PENINSULA AT OF 0300
UTC AND IS FORCING SCATTERED THUNDERSTORMS WEST OF 87W NORTH OF
15N.
FOR THE FORECAST, THE FRESH TRADES WILL PREVAIL IN THE SOUTH-
CENTRAL CARIBBEAN THROUGH AT LEAST MID-WEEK. A COLD FRONT WILL
MOVE INTO THE NW CARIBBEAN TUE MORNING THEN TRACK SE BEFORE
STALLING BY THU FROM EASTERN CUBA TO NICARAGUA. FRESH TO LOCALLY
STRONG NORTHERLY WINDS AND ROUGH SEAS WILL FOLLOW BEHIND THE FRONT
ACROSS THE YUCATAN CHANNEL TUE NIGHT INTO WED, THEN DIMINISH.
..ATLANTIC OCEAN
LARGE SWELL IS IMPACTING THE CENTRAL ATLANTIC. PLEASE REFER TO
THE SPECIAL FEATURES SECTION FOR MORE DETAILS.
AN APPROACHING COLD FRONT OVER FLORIDA IS FORCING FRESH TO STRONG
S WINDS AHEAD OF THE FRONT NORTH OF 27N WEST OF 77W. SCATTERED
THUNDERSTORMS ARE OCCURRING NORTH OF 29N WEST OF 80W. A COLD
FRONT EXTENDS FROM 31N20W SOUTHWESTWARD TO 19N40W, WHERE IT
TRANSITIONS TO A SHEAR LINE FO 20N55W. WINDS ARE S TO SW FRESH TO
STRONG WITHIN 60 NM EAST OF THE FRONT NORTH OF 25N. A MODERATE
PRESSURE GRADIENT BETWEEN A 1023 MB BERMUDA HIGH NEAR 29N57W AND
LOWER PRESSURE OVER THE ITCZ IS FORCING MODERATE TO FRESH TRADES
SOUTH OF 20N. OUTSIDE OF THE EXTENDED AREA OF LARGE N SWELL, SEAS
ARE 4-7 FT.
FOR THE FORECAST WEST OF 55W, LARGE N SWELL IMPACTING WATERS
NORTH OF 20N AND EAST OF 60W WILL CONTINUE SOUTHWARD INTO MID-
WEEK. STRONG SW WINDS OFFSHORE FLORIDA WILL EXPAND EAST AHEAD OF A
COLD FRONT THAT WILL MOVE OFFSHORE TONIGHT. BEHIND THE FRONT,
STRONG NE WINDS WILL DEVELOP NORTH OF THE BAHAMAS, WITH GALES
POSSIBLY FORMING IN THAT LOCATION LATE WED INTO THU, ALONG WITH
ROUGH TO VERY ROUGH SEAS. THE COLD FRONT IS FORECAST TO STALL THU
FROM BERMUDA TO EASTERN CUBA, THEN GRADUALLY DISSIPATE THROUGH THE
END OF THE WEEK.
LANDSEA
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