314
FZNT31 KNHC 270736
OFFN20
MARINE WEATHER HF VOICE BROADCAST
NWS NATIONAL HURRICANE CENTER MIAMI, FL
336 AM EDT WED AUG 27 2025
MARINE WEATHER HF VOICE BROADCAST FOR THE TROPICAL N ATLANTIC
FROM 07N TO 19N W OF 55W, THE N ATLANTIC FROM 19N TO
31N W OF 55W INCLUDING THE BAHAMAS, AND THE CARIBBEAN SEA.
SEAS GIVEN AS SIGNIFICANT WAVE HEIGHT, WHICH IS THE AVERAGE
HEIGHT OF THE HIGHEST 1/3 OF THE WAVES. INDIVIDUAL WAVES MAY BE
MORE THAN TWICE THE SIGNIFICANT WAVE HEIGHT.
SYNOPSIS FOR CARIBBEAN SEA AND TROPICAL N ATLANTIC FROM
07N TO 19N W OF 55W
SYNOPSIS
A TROPICAL WAVE IS MOVING FROM THE CENTRAL TO THE
WESTERN CARIBBEAN, CURRENTLY ANALYZED NEAR 79W. THIS WAVE IS
PRODUCING SCATTERED SHOWERS AND THUNDERSTORMS S OF 21N BETWEEN
78W AND 85W. FRESH TO STRONG WINDS AND MODERATE TO ROUGH SEAS
ARE IN THE CENTRAL CARIBBEAN AND THESE WINDS WILL BECOME
CONFINED TO THE S-CENTRAL WATERS TONIGHT INTO THU. FRESH WINDS
WILL PULSE NEAR THE WINDWARD PASSAGE THROUGH TODAY. DECAYING
NORTHERLY SWELL WILL PROPAGATE ACROSS THE TROPICAL ATLANTIC
WATERS TODAY.
NW CARIBBEAN W OF 85W
TODAY
E WINDS LESS THAN 10 KT. SEAS 3 TO 4 FT.
TONIGHT
E WINDS LESS THAN 10 KT. SEAS 3 TO 4 FT.
THU
E WINDS LESS THAN 10 KT. SEAS 3 FT.
THU NIGHT
E WINDS LESS THAN 10 KT. SEAS 3 FT.
FRI
E WINDS LESS THAN 10 KT. SEAS 3 FT.
FRI NIGHT
E WINDS 10 TO 15 KT. SEAS 2 FT OR LESS, BUILDING TO
3 FT AFTER MIDNIGHT.
SAT
E WINDS 10 TO 15 KT. SEAS 3 FT.
SAT NIGHT
E WINDS 10 TO 15 KT. SEAS 3 TO 4 FT.
SUN
SE WINDS 10 TO 15 KT. SEAS 3 TO 5 FT.
SUN NIGHT
E WINDS 10 TO 15 KT. SEAS 4 TO 6 FT.
CARIBBEAN N OF 15N BETWEEN 72W AND 85W
TODAY
E WINDS 10 TO 20 KT. SEAS 5 TO 7 FT.
TONIGHT
S OF 18N, E WINDS 10 TO 20 KT. ELSEWHERE, E WINDS
LESS THAN 10 KT, INCREASING TO 10 TO 15 KT AFTER MIDNIGHT. SEAS
5 TO 7 FT S OF 18N, AND 3 TO 4 FT ELSEWHERE.
THU
S OF 18N, E WINDS 10 TO 20 KT. ELSEWHERE, E WINDS 10 TO
15 KT, DIMINISHING TO LESS THAN 10 KT IN THE AFTERNOON. SEAS
4 TO 6 FT.
THU NIGHT
E WINDS 10 TO 20 KT S OF 18N, AND E LESS THAN 10 KT
ELSEWHERE. SEAS 4 TO 6 FT.
FRI
E WINDS 10 TO 20 KT. SEAS 4 TO 6 FT.
FRI NIGHT
E WINDS 10 TO 15 KT. SEAS 3 TO 5 FT.
SAT
E WINDS 10 TO 15 KT. SEAS 3 TO 5 FT.
SAT NIGHT
E WINDS 10 TO 15 KT. SEAS 3 TO 5 FT.
SUN
E WINDS 10 TO 15 KT. SEAS 3 TO 5 FT.
SUN NIGHT
E WINDS 10 TO 15 KT. SEAS 3 TO 4 FT.
CARIBBEAN FROM 11N TO 15N W OF 72W
TODAY
E WINDS 15 TO 25 KT WITHIN 90 NM OF COAST OF COLOMBIA,
AND E 10 TO 20 KT ELSEWHERE. SEAS 6 TO 9 FT.
TONIGHT
NE WINDS 15 TO 25 KT WITHIN 90 NM OF COAST OF
COLOMBIA, AND E 10 TO 20 KT ELSEWHERE. SEAS 6 TO 8 FT.
THU
E WINDS 10 TO 20 KT. SEAS 6 TO 8 FT.
THU NIGHT
E WINDS 10 TO 15 KT. SEAS 5 TO 7 FT.
FRI
E WINDS 10 TO 20 KT. SEAS 5 TO 7 FT.
FRI NIGHT
E WINDS 10 TO 20 KT. SEAS 5 TO 7 FT.
SAT
E WINDS 10 TO 20 KT. SEAS 4 TO 6 FT.
SAT NIGHT
E WINDS 10 TO 20 KT. SEAS 4 TO 6 FT.
SUN
E WINDS 10 TO 20 KT. SEAS 4 TO 6 FT.
SUN NIGHT
E WINDS 10 TO 20 KT. SEAS 5 TO 7 FT.
SW CARIBBEAN S OF 11N
TODAY
NE WINDS LESS THAN 10 KT, SHIFTING TO W IN THE
AFTERNOON. SEAS 4 TO 6 FT.
TONIGHT
VARIABLE WINDS LESS THAN 10 KT, BECOMING N LESS THAN
10 KT AFTER MIDNIGHT. SEAS 4 TO 6 FT.
THU
E WINDS LESS THAN 10 KT, SHIFTING TO SW IN THE AFTERNOON.
SEAS 4 TO 6 FT.
THU NIGHT
W WINDS LESS THAN 10 KT IN THE EVENING, BECOMING
VARIABLE WINDS LESS THAN 10 KT. SEAS 3 TO 5 FT.
FRI
VARIABLE WINDS LESS THAN 10 KT, BECOMING SW LESS THAN
10 KT IN THE AFTERNOON. SEAS 3 TO 5 FT.
FRI NIGHT
VARIABLE WINDS LESS THAN 10 KT. SEAS 3 TO 4 FT.
SAT
VARIABLE WINDS LESS THAN 10 KT. SEAS 3 TO 4 FT.
SAT NIGHT
N WINDS LESS THAN 10 KT. SEAS 3 TO 4 FT.
SUN
NW WINDS LESS THAN 10 KT. SEAS 4 TO 6 FT.
SUN NIGHT
NW WINDS LESS THAN 10 KT. SEAS 4 TO 6 FT.
CARIBBEAN BETWEEN 64W AND 72W
TODAY
E WINDS 15 TO 25 KT GULF OF VENEZUELA, AND E 10 TO
20 KT ELSEWHERE. SEAS 5 TO 7 FT.
TONIGHT
E WINDS 15 TO 25 KT GULF OF VENEZUELA, AND E 10 TO
20 KT ELSEWHERE. SEAS 4 TO 6 FT.
THU
GULF OF VENEZUELA, E WINDS 10 TO 20 KT, BECOMING NE LESS
THAN 10 KT IN THE AFTERNOON. ELSEWHERE, E WINDS 10 TO 20 KT.
SEAS 3 TO 5 FT GULF OF VENEZUELA, AND 4 TO 6 FT ELSEWHERE.
THU NIGHT
E WINDS 15 TO 25 KT GULF OF VENEZUELA, AND E 10 TO
20 KT ELSEWHERE. SEAS 5 TO 7 FT.
FRI
E WINDS 10 TO 20 KT. SEAS 4 TO 6 FT.
FRI NIGHT
E WINDS 10 TO 20 KT. SEAS 4 TO 6 FT.
SAT
E WINDS 10 TO 15 KT. SEAS 4 TO 6 FT.
SAT NIGHT
E WINDS 10 TO 15 KT. SEAS 3 TO 5 FT.
SUN
E WINDS 10 TO 15 KT. SEAS 3 TO 5 FT.
SUN NIGHT
E WINDS 10 TO 20 KT. SEAS 3 TO 5 FT.
OFFSHORE LEEWARD ISLANDS AND ADJACENT ATLC WATERS FROM 15N TO
19N W OF 55W
TODAY
SE WINDS 10 TO 15 KT. SEAS 4 TO 6 FT.
TONIGHT
E WINDS LESS THAN 10 KT. SEAS 4 TO 6 FT.
THU
E WINDS 10 TO 15 KT, DIMINISHING TO LESS THAN 10 KT IN
THE AFTERNOON. SEAS 3 TO 5 FT.
THU NIGHT
E WINDS LESS THAN 10 KT, INCREASING TO 10 TO 15 KT
AFTER MIDNIGHT. SEAS 3 TO 5 FT.
FRI
E WINDS 10 TO 15 KT. SEAS 4 TO 6 FT.
FRI NIGHT
E WINDS LESS THAN 10 KT. SEAS 3 TO 5 FT.
SAT
E WINDS LESS THAN 10 KT. SEAS 3 TO 5 FT.
SAT NIGHT
E WINDS LESS THAN 10 KT. SEAS 3 TO 4 FT.
SUN
E WINDS LESS THAN 10 KT. SEAS 3 TO 4 FT.
SUN NIGHT
E WINDS LESS THAN 10 KT. SEAS 3 TO 4 FT.
OFFSHORE WINDWARD ISLANDS AND ADJACENT ATLC WATERS FROM 07N TO
15N W OF 55W
TODAY
SE WINDS 10 TO 15 KT. SEAS 4 TO 6 FT.
TONIGHT
E WINDS 10 TO 15 KT. SEAS 4 TO 6 FT.
THU
E WINDS 10 TO 15 KT. SEAS 4 TO 6 FT.
THU NIGHT
E WINDS 10 TO 15 KT. SEAS 4 TO 6 FT.
FRI
E WINDS 10 TO 15 KT. SEAS 4 TO 6 FT.
FRI NIGHT
E WINDS 10 TO 15 KT. SEAS 3 TO 5 FT.
SAT
E WINDS 10 TO 15 KT. SEAS 4 TO 6 FT.
SAT NIGHT
E WINDS 10 TO 15 KT. SEAS 3 TO 5 FT.
SUN
E WINDS 10 TO 15 KT. SEAS 3 TO 5 FT.
SUN NIGHT
E WINDS 10 TO 15 KT. SEAS 3 TO 4 FT.
SYNOPSIS FOR THE THE SW N ATLANTIC INCLUDING THE BAHAMAS
SYNOPSIS
A SLOW MOVING FRONT EXTENDING FROM 31N76W TO N
FLORIDA WILL REACH FROM 31N75W TO CENTRAL FLORIDA WILL GRADUALLY
STALL THROUGH TONIGHT, THEN LIFT NW OF THE AREA ON THU. SCATTERED
SHOWERS AND THUNDERSTORMS ARE EXPECTED ALONG AND JUST SE OF THE
FRONT. A RIDGE WILL DOMINATE THE REMAINDER OF THE FORECAST
REGION. ANOTHER WEAK FRONT MAY MOVE INTO THE NW WATERS BY THE END
OF THE WEEK INTO THE WEEKEND. QUITE TRANQUIL MARINE CONDITIONS
WILL PREVAIL BY THE END OF THE WEEK INTO THE WEEKEND.
ATLC WATERS FROM 27N TO 31N W OF 77W
TODAY
VARIABLE WINDS LESS THAN 10 KT. SEAS 3 FT.
TONIGHT
E WINDS LESS THAN 10 KT. SEAS 3 FT.
THU
VARIABLE WINDS LESS THAN 10 KT. SEAS 3 FT.
THU NIGHT
VARIABLE WINDS LESS THAN 10 KT. SEAS 3 FT.
FRI
VARIABLE WINDS LESS THAN 10 KT, BECOMING N LESS THAN
10 KT IN THE AFTERNOON. SEAS 3 FT.
FRI NIGHT
SE WINDS LESS THAN 10 KT. SEAS 3 FT.
SAT
VARIABLE WINDS LESS THAN 10 KT. SEAS 3 FT.
SAT NIGHT
VARIABLE WINDS LESS THAN 10 KT. SEAS 3 FT.
SUN
VARIABLE WINDS LESS THAN 10 KT, BECOMING E LESS THAN
10 KT IN THE AFTERNOON. SEAS 3 FT.
SUN NIGHT
E WINDS LESS THAN 10 KT. SEAS 3 FT.
ATLC WATERS FROM 27N TO 31N BETWEEN 65W AND 77W
TODAY
SW WINDS LESS THAN 10 KT. SEAS 3 TO 4 FT.
TONIGHT
VARIABLE WINDS LESS THAN 10 KT, BECOMING SE LESS THAN
10 KT AFTER MIDNIGHT. SEAS 3 TO 4 FT.
THU
SE WINDS LESS THAN 10 KT IN THE MORNING, BECOMING
VARIABLE WINDS LESS THAN 10 KT. SEAS 3 TO 4 FT.
THU NIGHT
SE WINDS LESS THAN 10 KT. SEAS 3 TO 4 FT.
FRI
SW WINDS LESS THAN 10 KT. SEAS 3 TO 4 FT.
FRI NIGHT
VARIABLE WINDS LESS THAN 10 KT. SEAS 3 TO 4 FT.
SAT
VARIABLE WINDS LESS THAN 10 KT. SEAS 3 TO 4 FT.
SAT NIGHT
VARIABLE WINDS LESS THAN 10 KT, BECOMING SE LESS
THAN 10 KT AFTER MIDNIGHT. SEAS 3 FT.
SUN
S WINDS LESS THAN 10 KT IN THE MORNING, BECOMING VARIABLE
WINDS LESS THAN 10 KT. SEAS 3 FT.
SUN NIGHT
VARIABLE WINDS LESS THAN 10 KT. SEAS 3 FT.
BAHAMAS N OF 22N
TODAY
E WINDS 10 TO 15 KT. SEAS 3 TO 4 FT.
TONIGHT
E WINDS 10 TO 15 KT. SEAS 3 FT.
THU
E WINDS 10 TO 15 KT. SEAS 3 FT.
THU NIGHT
E WINDS 10 TO 15 KT. SEAS 3 FT IN THE EVENING,
SUBSIDING TO 2 FT OR LESS.
FRI
SE WINDS LESS THAN 10 KT. SEAS 2 FT OR LESS.
FRI NIGHT
SE WINDS LESS THAN 10 KT. SEAS 2 FT OR LESS.
SAT
SE WINDS LESS THAN 10 KT. SEAS 2 FT OR LESS.
SAT NIGHT
SE WINDS LESS THAN 10 KT. SEAS 2 FT OR LESS.
SUN
S WINDS LESS THAN 10 KT. SEAS 2 FT OR LESS.
SUN NIGHT
VARIABLE WINDS LESS THAN 10 KT, BECOMING SE LESS
THAN 10 KT AFTER MIDNIGHT. SEAS 2 FT OR LESS.
ATLC WATERS FROM 22N TO 27N BETWEEN 65W AND THE BAHAMAS
TODAY
W OF 70W, SE WINDS 10 TO 15 KT, SHIFTING TO E IN THE
AFTERNOON. ELSEWHERE, E WINDS 10 TO 15 KT. SEAS 4 TO 6 FT.
TONIGHT
E WINDS LESS THAN 10 KT. SEAS 3 TO 5 FT.
THU
E WINDS 10 KT. SEAS 3 TO 5 FT.
THU NIGHT
SE WINDS 10 KT. SEAS 3 TO 4 FT.
FRI
SE WINDS LESS THAN 10 KT. SEAS 3 TO 4 FT.
FRI NIGHT
VARIABLE WINDS LESS THAN 10 KT, BECOMING SE LESS
THAN 10 KT AFTER MIDNIGHT. SEAS 3 TO 4 FT.
SAT
SE WINDS LESS THAN 10 KT. SEAS 3 FT.
SAT NIGHT
SE WINDS LESS THAN 10 KT. SEAS 3 FT.
SUN
SE WINDS LESS THAN 10 KT. SEAS 3 FT.
SUN NIGHT
SE WINDS LESS THAN 10 KT. SEAS 3 FT.
ATLC WATERS S OF 22N W OF 65W
TODAY
E WINDS 10 TO 15 KT. SEAS 4 TO 6 FT.
TONIGHT
E WINDS 10 TO 15 KT. SEAS 3 TO 5 FT.
THU
E WINDS 10 TO 15 KT. SEAS 3 TO 5 FT.
THU NIGHT
E WINDS 10 TO 15 KT. SEAS 3 TO 4 FT.
FRI
SE WINDS LESS THAN 10 KT. SEAS 3 TO 4 FT.
FRI NIGHT
E WINDS LESS THAN 10 KT. SEAS 3 FT.
SAT
E WINDS LESS THAN 10 KT. SEAS 3 FT IN THE MORNING,
SUBSIDING TO 2 FT OR LESS.
SAT NIGHT
E WINDS LESS THAN 10 KT. SEAS 2 FT OR LESS.
SUN
E WINDS LESS THAN 10 KT. SEAS 2 FT OR LESS, BUILDING TO
3 FT IN THE AFTERNOON.
SUN NIGHT
E WINDS 10 TO 15 KT. SEAS 2 FT OR LESS.
ATLC WATERS FROM 19N TO 22N BETWEEN 55W AND 65W
TODAY
SE WINDS 10 TO 15 KT. SEAS 5 TO 6 FT.
TONIGHT
SE WINDS 10 TO 15 KT. SEAS 5 TO 6 FT.
THU
SE WINDS 10 TO 15 KT. SEAS 4 TO 6 FT.
THU NIGHT
E WINDS 10 KT. SEAS 4 TO 5 FT.
FRI
E WINDS 10 KT. SEAS 4 TO 5 FT.
FRI NIGHT
E WINDS 10 KT. SEAS 3 TO 4 FT.
SAT
E WINDS 10 KT. SEAS 3 TO 4 FT.
SAT NIGHT
E WINDS 10 KT. SEAS 3 TO 4 FT.
SUN
E WINDS 10 KT. SEAS 3 TO 4 FT.
SUN NIGHT
E WINDS 10 KT. SEAS 3 TO 4 FT.
CLICK HERE TO GO TO PREVIOUS BULLETINS.
Main Text Page