750
FZNT31 KNHC 171434
OFFN20
MARINE WEATHER HF VOICE BROADCAST
NWS NATIONAL HURRICANE CENTER MIAMI, FL
1034 AM EDT THU APR 17 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
STRONG HIGH PRESSURE NORTH OF THE BASIN WILL SUPPORT
FRESH TO STRONG NE WINDS ACROSS THE CENTRAL AND WESTERN
CARIBBEAN TONIGHT INTO EARLY NEXT WEEK. THE IMPACTED AREAS
INCLUDE THE WINDWARD PASSAGE AND SOUTH OF CUBA, AND PARTICULARLY
OFF THE COAST OF COLOMBIA WHERE NEAR- GALE FORCE WINDS AND ROUGH
SEAS ARE LIKELY MAINLY AT NIGHT. LOOKING AHEAD, LARGE NORTHERLY
SWELL WILL IMPACT THE MONA AND ANEGADA PASSAGES IN THE
NORTHEASTERN CARIBBEAN BY LATE SUN.
NW CARIBBEAN W OF 85W
THIS AFTERNOON
E WINDS 10 TO 15 KT. SEAS 3 TO 5 FT.
TONIGHT
E WINDS 10 TO 15 KT. SEAS 3 TO 5 FT.
FRI
E WINDS 10 TO 20 KT. SEAS 3 TO 5 FT.
FRI NIGHT
E WINDS 10 TO 20 KT. SEAS 4 TO 6 FT.
SAT
E WINDS 10 TO 20 KT. SEAS 5 TO 7 FT.
SAT NIGHT
E WINDS 10 TO 20 KT. SEAS 5 TO 7 FT.
SUN
E WINDS 10 TO 20 KT. SEAS 5 TO 7 FT.
SUN NIGHT
E WINDS 10 TO 20 KT. SEAS 6 TO 8 FT.
MON
E WINDS 10 TO 20 KT. SEAS 6 TO 8 FT.
MON NIGHT
E WINDS 10 TO 20 KT. SEAS 5 TO 6 FT.
CARIBBEAN N OF 15N BETWEEN 72W AND 85W
THIS AFTERNOON
NE WINDS 10 TO 15 KT. SEAS 3 TO 5 FT.
TONIGHT
NE WINDS 10 TO 20 KT. SEAS 4 TO 6 FT.
FRI
NE WINDS 10 TO 20 KT. SEAS 5 TO 7 FT.
FRI NIGHT
NE WINDS 10 TO 20 KT S OF 18N, AND E 15 TO 25 KT
ELSEWHERE. SEAS 5 TO 7 FT.
SAT
E WINDS 10 TO 20 KT. SEAS 5 TO 7 FT.
SAT NIGHT
E WINDS 10 TO 20 KT. SEAS 5 TO 7 FT.
SUN
E WINDS 10 TO 20 KT. SEAS 6 TO 8 FT.
SUN NIGHT
E WINDS 10 TO 20 KT. SEAS 6 TO 8 FT.
MON
E WINDS 10 TO 20 KT. SEAS 6 TO 9 FT.
MON NIGHT
E WINDS 10 TO 20 KT. SEAS 6 TO 8 FT.
CARIBBEAN FROM 11N TO 15N W OF 72W
THIS AFTERNOON
E WINDS 15 TO 20 KT WITHIN 90 NM OF COAST OF
COLOMBIA, AND NE 10 TO 20 KT ELSEWHERE. SEAS 6 TO 8 FT.
TONIGHT
NE WINDS 15 TO 25 KT WITHIN 90 NM OF COAST OF
COLOMBIA, AND NE 10 TO 20 KT ELSEWHERE. SEAS 6 TO 8 FT.
FRI
NE WINDS 20 TO 25 KT WITHIN 90 NM OF COAST OF COLOMBIA,
AND NE 10 TO 20 KT ELSEWHERE. SEAS 6 TO 8 FT.
FRI NIGHT
NE WINDS 20 TO 25 KT WITHIN 90 NM OF COAST OF
COLOMBIA, AND NE 10 TO 20 KT ELSEWHERE. SEAS 6 TO 9 FT.
SAT
NE WINDS 15 TO 25 KT. SEAS 7 TO 10 FT.
SAT NIGHT
NE WINDS 15 TO 25 KT. SEAS 7 TO 10 FT.
SUN
E WINDS 15 TO 25 KT. SEAS 7 TO 10 FT.
SUN NIGHT
E WINDS 15 TO 25 KT. SEAS 7 TO 10 FT.
MON
E WINDS 15 TO 25 KT. SEAS 7 TO 10 FT.
MON NIGHT
NE WINDS 15 TO 25 KT. SEAS 7 TO 10 FT.
SW CARIBBEAN S OF 11N
THIS AFTERNOON
NE WINDS 10 TO 20 KT. SEAS 6 TO 9 FT.
TONIGHT
NE WINDS 10 TO 20 KT. SEAS 6 TO 8 FT.
FRI
NE WINDS 10 TO 20 KT. SEAS 6 TO 9 FT.
FRI NIGHT
NE WINDS 10 TO 20 KT. SEAS 6 TO 9 FT.
SAT
NE WINDS 10 TO 20 KT. SEAS 6 TO 9 FT.
SAT NIGHT
NE WINDS 10 TO 20 KT. SEAS 6 TO 9 FT.
SUN
NE WINDS 10 TO 20 KT. SEAS 7 TO 10 FT.
SUN NIGHT
NE WINDS 10 TO 20 KT. SEAS 7 TO 10 FT.
MON
NE WINDS 10 TO 20 KT. SEAS 8 TO 11 FT.
MON NIGHT
NE WINDS 10 TO 20 KT. SEAS 7 TO 10 FT.
CARIBBEAN BETWEEN 64W AND 72W
THIS AFTERNOON
E WINDS 15 TO 20 KT GULF OF VENEZUELA, AND E
10 TO 15 KT ELSEWHERE. SEAS 4 TO 5 FT.
TONIGHT
NE WINDS 15 TO 20 KT GULF OF VENEZUELA, AND E 10 TO
20 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 20 KT. SEAS 5 TO 7 FT.
SAT
E WINDS 10 TO 20 KT. SEAS 5 TO 7 FT.
SAT NIGHT
NE WINDS 10 TO 20 KT. SEAS 5 TO 7 FT.
SUN
NE WINDS 10 TO 20 KT. SEAS 5 TO 7 FT.
SUN NIGHT
NE WINDS 10 TO 20 KT. SEAS 5 TO 7 FT.
MON
NE WINDS 10 TO 20 KT. SEAS 6 TO 8 FT.
MON NIGHT
NE WINDS 10 TO 20 KT. SEAS 6 TO 8 FT.
OFFSHORE LEEWARD ISLANDS AND ADJACENT ATLC WATERS FROM 15N TO
19N W OF 55W
THIS AFTERNOON
SE WINDS 10 TO 15 KT. SEAS 5 TO 7 FT.
TONIGHT
E WINDS 10 TO 15 KT. SEAS 5 TO 7 FT.
FRI
SE WINDS 10 TO 15 KT. SEAS 4 TO 6 FT.
FRI NIGHT
E WINDS LESS THAN 10 KT. SEAS 4 TO 6 FT.
SAT
E WINDS LESS THAN 10 KT. SEAS 4 TO 6 FT.
SAT NIGHT
E WINDS LESS THAN 10 KT, INCREASING TO 10 TO 15 KT
AFTER MIDNIGHT. SEAS 4 TO 6 FT.
SUN
E WINDS 10 TO 15 KT, DIMINISHING TO LESS THAN 10 KT IN
THE AFTERNOON. SEAS 4 TO 6 FT.
SUN NIGHT
NE WINDS 10 TO 15 KT. SEAS 5 TO 7 FT.
MON
NE WINDS 10 TO 15 KT. SEAS 6 TO 8 FT.
MON NIGHT
NE WINDS 10 TO 20 KT. SEAS 6 TO 8 FT.
OFFSHORE WINDWARD ISLANDS AND ADJACENT ATLC WATERS FROM 07N TO
15N W OF 55W
THIS AFTERNOON
E WINDS 10 TO 15 KT. SEAS 5 TO 7 FT.
TONIGHT
E WINDS 10 TO 20 KT. SEAS 6 TO 8 FT.
FRI
E WINDS 10 TO 15 KT. SEAS 5 TO 7 FT.
FRI NIGHT
E WINDS 10 TO 15 KT. SEAS 5 TO 7 FT.
SAT
E WINDS 10 TO 15 KT. SEAS 5 TO 7 FT.
SAT NIGHT
E WINDS 10 TO 15 KT. SEAS 5 TO 7 FT.
SUN
E WINDS 10 TO 15 KT. SEAS 5 TO 7 FT.
SUN NIGHT
E WINDS 10 TO 15 KT. SEAS 4 TO 6 FT.
MON
E WINDS LESS THAN 10 KT. SEAS 4 TO 6 FT.
MON NIGHT
E WINDS LESS THAN 10 KT. SEAS 4 TO 6 FT.
SYNOPSIS FOR THE THE SW N ATLANTIC INCLUDING THE BAHAMAS
SYNOPSIS
A COLD FRONT EXTENDING FROM EAST OF BERMUDA THROUGH
THE CENTRAL BAHAMAS AND INTO FLORIDA STRAITS WILL SLOWLY DRIFT
SOUTHWARD THROUGH FRI, AND HIGH PRESSURE IS EXPECTED TO BUILD IN
THE WAKE OF THE FRONT. A STRENGTHENING PRESSURE GRADIENT BETWEEN
THESE FEATURES WILL SUPPORT WIDESPREAD MODERATE TO FRESH NE
WINDS, WITH LOCALIZED STRONG WINDS, AND ROUGH SEAS NORTH OF THE
GREATER ANTILLES LATE TONIGHT THROUGH THIS WEEKEND. WIDESPREAD
STRONG E TO NE WINDS AND ROUGH SEAS ARE EXPECTED SAT INTO SUN
THROUGH THE BAHAMAS AND NEAR THE GREATER ANTILLES. WINDS AND
SEAS WILL SLOWLY DIMINISH WEST OF 65W EARLY NEXT WEEK. LOOKING
AHEAD, A COMPLEX LOW PRESSURE SYSTEM MAY DEVELOP IN THE CENTRAL
ATLANTIC THIS WEEKEND, PRODUCING FRESH TO STRONG NE WINDS AND
ROUGH SEAS SURROUNDING THE LOW, EAST OF 65W.
ATLC WATERS FROM 27N TO 31N W OF 77W
THIS AFTERNOON
E WINDS LESS THAN 10 KT. SEAS 3 FT.
TONIGHT
E WINDS 10 TO 15 KT. SEAS 3 TO 4 FT.
FRI
E WINDS 10 TO 15 KT. SEAS 3 TO 5 FT.
FRI NIGHT
E WINDS 10 TO 15 KT. SEAS 4 TO 6 FT.
SAT
SE WINDS 10 TO 20 KT. SEAS 4 TO 6 FT.
SAT NIGHT
SE WINDS 10 TO 15 KT. SEAS 4 TO 6 FT.
SUN
SE WINDS 10 TO 15 KT. SEAS 4 TO 6 FT.
SUN NIGHT
SE WINDS 10 TO 15 KT. SEAS 4 TO 6 FT.
MON
SE WINDS 10 TO 15 KT. SEAS 4 TO 5 FT.
MON NIGHT
SE WINDS 10 TO 15 KT. SEAS 3 TO 4 FT.
ATLC WATERS FROM 27N TO 31N BETWEEN 65W AND 77W
THIS AFTERNOON
NE WINDS 10 TO 15 KT. SEAS 4 TO 5 FT.
TONIGHT
NE WINDS 10 TO 20 KT. SEAS 5 TO 7 FT.
FRI
NE WINDS 10 TO 20 KT W OF 70W, AND NE 15 TO 25 KT
ELSEWHERE. SEAS 6 TO 8 FT.
FRI NIGHT
E WINDS 10 TO 20 KT. SEAS 6 TO 9 FT.
SAT
E WINDS 10 TO 20 KT. SEAS 6 TO 8 FT.
SAT NIGHT
E WINDS 10 TO 20 KT. SEAS 5 TO 7 FT.
SUN
E WINDS 10 TO 15 KT. SEAS 5 TO 7 FT.
SUN NIGHT
NE WINDS 10 TO 15 KT. SEAS 5 TO 7 FT.
MON
NE WINDS 10 TO 15 KT. SEAS 4 TO 6 FT.
MON NIGHT
NE WINDS 10 TO 15 KT. SEAS 4 TO 6 FT.
BAHAMAS N OF 22N
THIS AFTERNOON
NE WINDS 10 TO 15 KT. SEAS 2 FT OR LESS.
TONIGHT
NE WINDS 10 TO 15 KT. SEAS 3 TO 5 FT.
FRI
NE WINDS 10 TO 20 KT. SEAS 3 TO 5 FT.
FRI NIGHT
E WINDS 10 TO 20 KT. SEAS 4 TO 6 FT.
SAT
E WINDS 15 TO 25 KT. SEAS 5 TO 7 FT.
SAT NIGHT
E WINDS 15 TO 25 KT. SEAS 5 TO 7 FT.
SUN
E WINDS 10 TO 20 KT. SEAS 5 TO 7 FT.
SUN NIGHT
E WINDS 10 TO 20 KT. SEAS 4 TO 6 FT.
MON
E WINDS 10 TO 20 KT. SEAS 4 TO 6 FT.
MON NIGHT
E WINDS 10 TO 20 KT. SEAS 3 TO 5 FT.
ATLC WATERS FROM 22N TO 27N BETWEEN 65W AND THE BAHAMAS
THIS AFTERNOON
W OF 70W, N WINDS LESS THAN 10 KT, SHIFTING TO
NE IN THE AFTERNOON. ELSEWHERE, NE WINDS LESS THAN 10 KT. SEAS
3 TO 4 FT.
TONIGHT
W OF 70W, NE WINDS 10 TO 20 KT. ELSEWHERE, NE WINDS
LESS THAN 10 KT, INCREASING TO 10 TO 15 KT AFTER MIDNIGHT. SEAS
3 TO 5 FT.
FRI
NE WINDS 10 TO 20 KT. SEAS 5 TO 7 FT.
FRI NIGHT
NE WINDS 15 TO 25 KT. SEAS 6 TO 9 FT.
SAT
NE WINDS 15 TO 20 KT. SEAS 7 TO 10 FT.
SAT NIGHT
NE WINDS 15 TO 25 KT. SEAS 8 TO 10 FT.
SUN
NE WINDS 10 TO 20 KT. SEAS 7 TO 10 FT.
SUN NIGHT
NE WINDS 10 TO 20 KT. SEAS 6 TO 9 FT.
MON
NE WINDS 10 TO 15 KT. SEAS 6 TO 8 FT.
MON NIGHT
NE WINDS 10 TO 15 KT. SEAS 5 TO 7 FT.
ATLC WATERS S OF 22N W OF 65W
THIS AFTERNOON
E WINDS LESS THAN 10 KT. SEAS 3 TO 5 FT.
TONIGHT
NE WINDS 10 TO 15 KT. SEAS 3 TO 5 FT.
FRI
NE WINDS 10 TO 15 KT. SEAS 3 TO 5 FT.
FRI NIGHT
NE WINDS 10 TO 20 KT. SEAS 5 TO 7 FT.
SAT
NE WINDS 10 TO 20 KT. SEAS 6 TO 8 FT.
SAT NIGHT
NE WINDS 15 TO 25 KT. SEAS 6 TO 9 FT.
SUN
NE WINDS 10 TO 20 KT. SEAS 6 TO 9 FT.
SUN NIGHT
NE WINDS 10 TO 20 KT. SEAS 6 TO 9 FT.
MON
NE WINDS 10 TO 20 KT. SEAS 6 TO 9 FT.
MON NIGHT
NE WINDS 10 TO 20 KT. SEAS 6 TO 8 FT.
ATLC WATERS FROM 19N TO 22N BETWEEN 55W AND 65W
THIS AFTERNOON
SE WINDS 10 TO 15 KT. SEAS 5 TO 7 FT.
TONIGHT
SE WINDS 10 TO 15 KT. SEAS 5 TO 6 FT.
FRI
SE WINDS 10 TO 15 KT, DIMINISHING TO LESS THAN 10 KT IN
THE AFTERNOON. SEAS 5 TO 7 FT.
FRI NIGHT
E WINDS LESS THAN 10 KT. SEAS 4 TO 6 FT.
SAT
E WINDS LESS THAN 10 KT. SEAS 4 TO 6 FT.
SAT NIGHT
NE WINDS 10 TO 15 KT. SEAS 6 TO 8 FT.
SUN
NE WINDS 10 TO 20 KT. SEAS 6 TO 9 FT.
SUN NIGHT
NE WINDS 10 TO 20 KT. SEAS 6 TO 9 FT.
MON
N WINDS 10 TO 20 KT. SEAS 7 TO 9 FT.
MON NIGHT
N WINDS 10 TO 20 KT. SEAS 6 TO 8 FT.
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