861
AXNT20 KNHC 281830
TWDAT
TROPICAL WEATHER DISCUSSION
NWS NATIONAL HURRICANE CENTER MIAMI FL
1815 UTC SAT FEB 28 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 1200 UTC SURFACE ANALYSIS AND SATELLITE IMAGERY THROUGH
0660 UTC.
..SPECIAL FEATURES
GALE WARNING EAST OF 35W:
A GALE WARNING REMAINS IN EFFECT FOR THE CANARIAS AND AGADIR
MARINE ZONES OF METEO FRANCE UNTIL 1/00Z.
FOR MORE INFORMATION, PLEASE SEE THE LATEST HIGH SEAS FORECAST
ISSUED BY METEO-FRANCE AT WEBSITE:
HTTPS://WWMIWS.WMO.INT/INDEX.PHP/METAREAS/AFFICHES/2
CENTRAL AND EASTERN ATLANTIC SIGNIFICANT SWELL EVENT:
A ROBUST HIGH PRESSURE SYSTEM NEAR THE AZORES IS MAINTAINING FRESH
TO NEAR GALE-FORCE TRADE WINDS ACROSS THE EASTERN AND CENTRAL
ATLANTIC. WIND WAVES GENERATED BY THESE WINDS WILL CONTINUE TO
GENERATE SEAS OF 8 TO 13 FT ACROSS MOST OF THE WATERS BETWEEN 20W
AND 60W, WITH HIGHEST SEAS E OF 40W. THIS EVENT WILL PERSIST
THROUGH EARLY NEXT WEEK, WHILE DRIFTING SOUTHEASTWARD.
PLEASE READ THE LATEST NWS HIGH SEAS FORECAST ISSUED BY THE
NATIONAL HURRICANE CENTER AT WEBSITE:
HTTPS://WWW.NHC.NOAA.GOV/TEXT/MIAHSFAT2.SHTML FOR MORE
INFORMATION.
..MONSOON TROUGH/ITCZ
A MONSOON TROUGH ENTERS THE ATLANTIC ALONG THE COAST OF GUINEA
JUST NORTH OF CONAKRY, THEN EXTENDS SOUTHWESTWARD TO 05N18W. AN
ITCZ CONTINUES FROM 05N18W THROUGH 02N30W TO NORTH OF FORTALEZA,
BRAZIL AT 01S38W. SCATTERED TO NUMEROUS MODERATE TO STRONG
CONVECTION IS OBSERVED FROM 00N TO 06N AND EAST OF 30W.
..GULF OF AMERICA
A WEAKENING STATIONARY FRONT EXTENDS SOUTHWESTWARD FROM NORTHWEST
FLORIDA TO A 1013 MB LOW PRESSURE NEAR 27N87W. A SURFACE TROUGH
IS ALSO SEEN TO THE SOUTH REACHING FROM NEAR TAMPA, FLORIDA TO
NEAR 25N85W. WIDELY SCATTERED SHOWERS ARE SEEN FROM 25N TO 28N
BETWEEN THE FLORIDA WEST COAST AND 87W. MODERATE NE TO E WINDS AND
SEAS OF 2 TO 4 FT ARE PRESENT AT THE NORTH-CENTRAL GULF. LIGHT TO
GENTLE WINDS AND 1 TO 2 FT SEAS PREVAIL FOR THE REST OF THE GULF.
FOR THE FORECAST, THE WEAK FRONT WILL SLOWLY MOVE SOUTHEASTWARD
AND EXIT THE BASIN TONIGHT. AFTERWARD, A STRONG HIGH PRESSURE
SYSTEM WILL BUILD WEST-SOUTHWESTWARD OVER THE AREA FROM THE NORTH
ATLANTIC BEGINNING ON SUN NIGHT, WITH THE RELATED GRADIENT
GENERALLY SUPPORTING MODERATE TO FRESH E TO SE WINDS ACROSS THE
GULF. LOCALLY STRONG WINDS WILL OCCUR AT NIGHT OFF THE NORTHERN
YUCATAN PENINSULA TUE AND WED.
..CARIBBEAN SEA
A STRONG ATLANTIC RIDGE CONTINUES TO SUPPORT A ROBUST TRADE-WIND
REGIME ACROSS THE CARIBBEAN SEA. SCATTERED TRADE-WIND SHOWERS ARE
OCCURRING NEAR THE LESSER ANTILLES. FRESH TO STRONG WITH LOCALLY
NEAR-GALE NE TO E WINDS AND SEAS OF 8 TO 10 FT DOMINATE THE
SOUTH- CENTRAL BASIN. MODERATE TO FRESH E TO ESE WINDS AND 6 TO 8
FT SEAS ARE EVIDENT AT THE NORTH-CENTRAL, EASTERN AND PART OF THE
SOUTHWESTERN BASIN. GENTLE NE TO SE WINDS AND SEAS OF 2 TO 5 FT
PREVAIL ELSEWHERE IN THE CARIBBEAN SEA.
FOR THE FORECAST, AN EXPANSIVE SUBTROPICAL RIDGE OVER THE CENTRAL
ATLANTIC WILL SUPPORT FRESH TO NEAR GALE-FORCE EASTERLY TRADE
WINDS AND MODERATE TO ROUGH SEAS ACROSS THE CENTRAL AND EASTERN
CARIBBEAN OVER THE NEXT SEVERAL DAYS. A TIGHTER PRESSURE GRADIENT
WILL INITIATE GALE-FORCE WINDS OFF COLOMBIA AT NIGHT MON THROUGH
AT LEAST LATE NEXT WEEK AND SUPPORT LOCALLY VERY ROUGH SEAS. FRESH
TO STRONG TRADES EXPECTED ELSEWHERE ACROSS MOST OF THE CENTRAL
AND EASTERN PORTIONS OF THE BASIN. IN THE MEANTIME, ROUGH SEAS IN
MIXED SWELL WILL PREVAIL IN THE TROPICAL N ATLANTIC THROUGH THE
FORECAST PERIOD, WITH SEAS TO 12 FT REACHING 55W MON. ELSEWHERE,
LITTLE CHANGE IS EXPECTED WITH MODERATE TO FRESH TRADES CONTINUING
THROUGH THE PERIOD.
..ATLANTIC OCEAN
PLEASE SEE THE SPECIAL FEATURES SECTION ABOUT A GALE WARNING
ISSUED BY METEO-FRANCE IN THE EASTERN ATLANTIC.
A STATIONARY FRONT EXTENDS SOUTHWESTWARD FROM OFF THE CAROLINA
COAST ACROSS 31N79W TO BEYOND NORTHERN FLORIDA. SCATTERED SHOWERS
ARE OCCURRING UP TO 40 NM ALONG EITHER SIDE OF THE FRONT. FARTHER
SOUTH, SCATTERED SHOWERS AND ISOLATED THUNDERSTORMS ARE SEEN NORTH
27N BETWEEN 73W AND THE FLORIDA EAST COAST. A BROAD 1036 MB
ATLANTIC RIDGE IS SUPPORTING MODERATE TO FRESH SE TO S WINDS AND6
TO 8 FT SEAS IN MODERATE SE SWELL NORTH OF 20N AND WEST OF 50W. TO
THE EAST, FRESH TO STRONG E TO SE WINDS WITH 8 TO 12 FT SEAS ARE
PRESENT NORTH OF 20N BETWEEN 35W AND 50W. FOR THE TROPICAL
ATLANTIC FROM 00N TO 20N AND WEST OF 35W, FRESH TO STRONG NE TO E
WINDS AND 9 TO 13 FT SEAS ARE NOTED.
FOR THE FORECAST WEST OF 55W, A SHORTWAVE TROUGH ALOFT IN THE
GENERAL AREA OF THE FRONT IS HELPING TO SUPPORT SCATTERED TO
NUMEROUS SHOWERS AND THUNDERSTORMS NORTH OF 28N BETWEEN 74W AND
79W. THE FRONT WILL RESUME AS A WEAKENING COLD FRONT LATER THIS
MORNING AS IT SLOWLY MOVES SOUTHEASTWARD REACHING FROM NEAR 31N77W
TO CENTRAL FLORIDA THIS AFTERNOON. ELSEWHERE, HIGH PRESSURE OVER
THE CENTRAL ATLANTIC CONTINUES TO MAINTAIN CONTROL OVER MUCH OF
THE WESTERN ATLANTIC WHILE ROUGH SEAS PREVAIL OVER THE SE WATERS.
ANOTHER COLD FRONT IS EXPECTED TO ENTER THE NORTHERN WATERS EARLY
NEXT WEEK AND GRADUALLY SHIFT SOUTHEASTWARD AND WEAKEN. FRESH TO
NEAR GALE-FORCE EASTERLY WINDS AND ROUGH TO VERY ROUGH SEAS,
PEAKING AROUND 14 FT, ARE FORECAST BEHIND THE FRONT MON THROUGH
TUE NIGHT NORTH OF 27N. HIGH PRESSURE WILL BUILD BY THE MIDDLE OF
NEXT WEEK RESULTING IN MODERATE TO FRESH WINDS AND ROUGH SEAS OVER
MUCH OF THE BASIN.
CHAN
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