329
AXNT20 KNHC 111047
TWDAT
TROPICAL WEATHER DISCUSSION
NWS NATIONAL HURRICANE CENTER MIAMI FL
1215 UTC SAT APR 11 2026
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 0600| UTC SURFACE ANALYSIS AND SATELLITE IMAGERY THROUGH
1030 UTC.
..MONSOON TROUGH/ITCZ
THE MONSOON TROUGH AXIS REMAINS MOSTLY OVER THE AFRICA CONTINENT.
THE ITCZ EXTENDS SOUTHWESTWARD FROM 03N12W TO 01N32W AND TO NEAR
02N43W. SCATTERED MODERATE TO ISOLATED STRONG CONVECTION IS WITHIN
120 NM NORTH OF THE ITCZ BETWEEN 11W AND 18W AND WITHIN 120 NM
SOUTH OF THE ITCZ BETWEEN 13W AND 17W. SCATTERED MODERATE CONVECTION
IS WITHIN 180 NM NORTH OF THE ITCZ BETWEEN 32W AND 36W AND WITHIN
60 NM SOUTH OF THE ITCZ BETWEEN 35W AND THE COAST OF BRAZIL.
..GULF OF AMERICA
BROAD RIDGING STRETCHES FROM THE SOUTHEASTERN U.S. SOUTHWESTWARD
TO CENTRAL TEXAS. THE RELATED GRADIENT IS ALLOWING FOR MOSTLY
MODERATE TO FRESH EAST WINDS ACROSS JUST ABOUT THE ENTIRE
BASIN. SEAS ARE 5 TO 7 FT EAST OF 90W AND SOUTH OF 26N AND 4 TO 6
FT ELSEWHERE, EXCEPT FOR SLIGHTLY LOWER SEAS OF 3 TO 5 FT IN THE
SW GULF.
FOR THE FORECAST, THE MODERATE TO FRESH EAST WINDS SHOULD PERSIST
THROUGH TONIGHT. THE HIGH PRESSURE WILL STRENGTHEN SOME THROUGH
LATE SUN NIGHT AS IT SHIFTS EASTWARD OVER THE WESTERN ATLANTIC
THROUGH EARLY NEXT WEEK BEFORE IT WEAKENS INTO MIDWEEK. A RIDGE
WILL STRETCH WEST-SOUTHWESTWARD FROM THE HIGH TO ACROSS THE
NORTHERN GULF THROUGH THE PERIOD. A TIGHTENING PRESSURE GRADIENT
BETWEEN THE RIDGE AND LOWER PRESSURE TO ITS SOUTHEAST ASSOCIATED
WITH A FRONTAL BOUNDARY WILL FUNNEL PULSING FRESH TO STRONG EAST
WINDS THROUGH THE STRAITS OF FLORIDA AND INTO THE SOUTHEASTERN
GULF STARTING ON MON. SEAS ACROSS THE BASIN WILL BE AT A MOSTLY
MODERATE STATE, EXCEPT, AT TIMES, REACHING A ROUGH STATE IN THE
STRAITS OF FLORIDA BEGINNING ON MON.
..CARIBBEAN SEA
THE PRESENT SYNOPTIC WEATHER PATTERN, WITH A FRONTAL SYSTEM OVER
THE WESTERN ATLANTIC AND BUILDING HIGH PRESSURE BEHIND IT IS
KEEPING FRESH TO STRONG TRADES CONFINED TO THE SOUTH-CENTRAL
SECTION OF THE SEA, NAMELY SOUTH OF ABOUT 16N AND BETWEEN 70W AND
78W. SEAS WITH THESE WINDS ARE 7 TO 10 FT. FRESH NORTHEAST WINDS
HAVE RECENTLY DEVELOP IN THE LEE OF CUBA AND IN THE WINDWARD
PASSAGE. MODERATE TO FRESH TRADES ARE ELSEWHERE SOUTH OF 17N
EAST OF 85W, AND GENTLE TO MODERATE NORTHEAST TO EAST WINDS ARE
ELSEWHERE IN THE WESTERN SECTION OF THE BASIN. SEAS OF 4 TO 6 FT
ARE ELSEWHERE IN THE CARIBBEAN SEA, EXCEPT NORTH OF 18N AND
EAST OF 85W WHERE SLIGHTLY LOWER SEAS OF 3 TO 5 FT ARE FOUND.
FOR THE FORECAST, STRONG HIGH PRESSURE BUILDING SOUTHWARD FROM
THE WESTERN ATLANTIC WILL TIGHTEN THE PRESSURE GRADIENT AND
INCREASE WINDS OVER THE BASIN, LEADING TO STRONG WINDS OVER THE
SOUTH- CENTRAL CARIBBEAN THROUGH THE WEEKEND AND INTO EARLY NEXT
WEEK. FRESH TO STRONG NORTHEAST WINDS AND BUILDING SEAS WILL
PREVAIL SOUTH OF CUBA, IN THE WINDWARD PASSAGE, AND SOUTH OF
HISPANIOLA STARTING TONIGHT.
..ATLANTIC OCEAN
A COLD FRONT EXTENDS SOUTHWESTWARD FROM LOW PRESSURE OF 1011 MB
NORTH OF THE AREA NEAR 33N61W TO 31N61W TO 28N65W AND TO THE
EASTERN TIP OF CUBA. FRESH TO STRONG SOUTH WINDS ARE EAST OF THE
FRONT TO NEAR 52W AND NORTH OF 28N. SEAS WITH THESE WINDS ARE IN
THE RANGE OF 8 TO 10 FT. SCATTERED MODERATE CONVECTION IS EVIDENT
WITHIN ABOUT 120 NM EAST OF THE FRONT NORTH OF 24N. A TROUGH
IS ANALYZED FROM NEAR 19N53W TO 12N53W. ISOLATED SHOWERS ARE
POSSIBLE NEAR THIS TROUGH.
MOSTLY FRESH NORTHEAST WINDS AND SEAS OF 8 TO 10 FT ARE EVIDENT
BEHIND THE COLD FRONT, EXCEPT SEAS IN THE BAHAMAS ARE 5 TO 7 FT.
WINDS ELSEWHERE EAST OF THE FRONT ARE MODERATE TO FRESH IN SPEEDS,
AND EAST TO SOUTHEAST IN DIRECTION TO NEAR 40W ALONG WITH SEAS OF
7 TO 9 FT IN LONG-PERIOD EAST SWELL. EAST OF 40W, EAST WINDS OF
FRESH SPEEDS ARE PRESENT ALSO WITH SEAS OF 7 TO 9 FT IN LONG-
PERIOD NORTHEAST SWELL.
FOR THE FORECAST WEST OF 55W, HIGH PRESSURE CENTERED OVER THE
SOUTHEASTERN U.S. IS BUILDING SOUTHWARD OVER THE WESTERN ATLANTIC
BEHIND THE ABOVE DESCRIBED COLD FRONT. THE PRESSURE GRADIENT
BETWEEN THE HIGH PRESSURE AND THE FRONT WILL MAINTAIN MOSTLY
FRESH NORTHEAST WINDS WEST OF THE FRONT THROUGH SUN. WINDS BECOME
LOCALLY STRONG STARTING SUN NIGHT AS THE HIGH PRESSURE STRENGTHENS
SOME. THE WINDS THEN DIMINISH BACK TO MOSTLY FRESH SPEEDS
STARTING TUE SOUTH OF 28N AS THE HIGH PRESSURE WEAKENS, WITH AN
ASSOCIATED RIDGE NEAR 31N. ROUGH SEAS FROM LARGE NE SWELL WILL
LINGER INTO THE START OF NEXT WEEK BETWEEN BERMUDA AND THE
BAHAMAS.
AGUIRRE
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