589
FZNT31 KNHC 171636
OFFN20
MARINE WEATHER HF VOICE BROADCAST
NWS NATIONAL HURRICANE CENTER MIAMI, FL
ISSUED BY NWS OCEAN PREDICTION CENTER WASHINGTON DC
1236 PM EDT MON MAR 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
FRESH TO STRONG NORTHERLY WINDS AND ROUGH SEAS WILL
FOLLOW A COLD FRONT THAT ENTERED THE NW CARIBBEAN WATERS THIS
MORNING. THE FRONT IS FORECAST TO REACH FROM EASTERN CUBA TO THE
GULF OF HONDURAS TONIGHT, AND FROM THE WINDWARD PASSAGE TO NEAR
CABO GRACIAS A DIOS, NICARAGUA ON TUE BEFORE DISSIPATING TUE
NIGHT INTO WED. MODERATE TO FRESH N TO NE WINDS WILL PREVAIL
ACROSS THE NW CARIBBEAN THROUGH MID WEEK. IN ADDITION, NE FRESH
TO STRONG WINDS WILL PULSE ACROSS SOUTHERN CUBA, THE WINDWARD
PASSAGE, AND SOUTH OF HAITI THROUGH THE SAME PERIOD DUE TO A
DEVELOPING LOW PRESSURE NORTH OF THE AREA. SEAS IN THIS AREA
WILL RANGE FROM 4 TO 8 FT. HIGH PRESSURE OVER THE CENTRAL NORTH
ATLANTIC COMBINED WITH THE COLOMBIAN LOW WILL SUPPORT PULSING
WINDS TO FRESH TO STRONG SPEEDS AT NIGHT OFFSHORE COLOMBIA
THROUGHOUT THE FORECAST PERIOD.
NW CARIBBEAN W OF 85W
THIS AFTERNOON
NE WINDS 15 TO 25 KT. SEAS 5 TO 7 FT.
TONIGHT
NE WINDS 15 TO 25 KT. SEAS 5 TO 7 FT.
TUE
NE WINDS 10 TO 20 KT. SEAS 6 TO 8 FT.
TUE NIGHT
NE WINDS 10 TO 15 KT. SEAS 5 TO 7 FT.
WED
E WINDS 10 TO 15 KT. SEAS 4 TO 5 FT.
WED NIGHT
E WINDS 10 TO 15 KT. SEAS 3 TO 5 FT.
THU
E WINDS 10 TO 15 KT, SHIFTING TO NE IN THE AFTERNOON.
SEAS 3 TO 4 FT.
THU NIGHT
NE WINDS 10 TO 15 KT. SEAS 3 TO 4 FT.
FRI
NE WINDS 10 TO 15 KT. SEAS 4 TO 6 FT.
FRI NIGHT
E WINDS LESS THAN 10 KT, INCREASING TO 10 TO 15 KT
AFTER MIDNIGHT. SEAS 4 TO 6 FT.
CARIBBEAN N OF 15N BETWEEN 72W AND 85W
THIS AFTERNOON
E WINDS LESS THAN 10 KT S OF 18N, AND N 10 TO
15 KT ELSEWHERE. SEAS 3 TO 4 FT.
TONIGHT
S OF 18N, NE WINDS LESS THAN 10 KT, SHIFTING TO N
AFTER MIDNIGHT. ELSEWHERE, N WINDS 10 TO 20 KT. SEAS 4 TO 6 FT.
TUE
NE WINDS 10 TO 20 KT. SEAS 4 TO 6 FT.
TUE NIGHT
NE WINDS 10 TO 20 KT. SEAS 4 TO 6 FT.
WED
E WINDS 10 TO 20 KT. SEAS 4 TO 6 FT.
WED NIGHT
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
NE WINDS 10 TO 15 KT. SEAS 3 TO 4 FT.
FRI
NE WINDS 10 TO 15 KT. SEAS 3 TO 5 FT.
FRI NIGHT
NE WINDS 10 TO 15 KT. SEAS 3 TO 5 FT.
CARIBBEAN FROM 11N TO 15N W OF 72W
THIS AFTERNOON
NE WINDS 15 TO 20 KT WITHIN 90 NM OF COAST OF
COLOMBIA, AND NE 10 TO 15 KT ELSEWHERE. SEAS 4 TO 6 FT.
TONIGHT
NE WINDS 15 TO 20 KT WITHIN 90 NM OF COAST OF
COLOMBIA, AND NE 10 TO 15 KT ELSEWHERE. SEAS 4 TO 6 FT.
TUE
NE WINDS 10 TO 15 KT. SEAS 3 TO 5 FT.
TUE NIGHT
NE WINDS 10 TO 15 KT. SEAS 3 TO 5 FT.
WED
NE WINDS 10 TO 15 KT. SEAS 3 TO 5 FT.
WED NIGHT
NE WINDS 10 TO 20 KT. SEAS 4 TO 6 FT.
THU
NE WINDS 10 TO 20 KT. SEAS 5 TO 7 FT.
THU NIGHT
NE WINDS 10 TO 20 KT. SEAS 5 TO 7 FT.
FRI
NE WINDS 10 TO 20 KT. SEAS 5 TO 7 FT.
FRI NIGHT
NE WINDS 10 TO 20 KT. SEAS 6 TO 8 FT.
SW CARIBBEAN S OF 11N
THIS AFTERNOON
NE WINDS 10 TO 15 KT. SEAS 4 TO 6 FT.
TONIGHT
N WINDS 10 TO 20 KT. SEAS 4 TO 6 FT.
TUE
N WINDS 10 TO 20 KT. SEAS 4 TO 6 FT.
TUE NIGHT
N WINDS 10 TO 20 KT. SEAS 4 TO 6 FT.
WED
NE WINDS 10 TO 20 KT. SEAS 4 TO 6 FT.
WED NIGHT
NE WINDS 10 TO 20 KT. SEAS 4 TO 6 FT.
THU
NE WINDS 10 TO 20 KT. SEAS 5 TO 7 FT.
THU NIGHT
N WINDS 10 TO 20 KT. SEAS 5 TO 7 FT.
FRI
NE WINDS 10 TO 20 KT. SEAS 6 TO 8 FT.
FRI NIGHT
NE WINDS 10 TO 20 KT. SEAS 6 TO 8 FT.
CARIBBEAN BETWEEN 64W AND 72W
THIS AFTERNOON
NE WINDS 10 TO 15 KT. SEAS 3 TO 4 FT.
TONIGHT
NE WINDS 15 TO 20 KT GULF OF VENEZUELA, AND NE 10 TO
15 KT ELSEWHERE. SEAS 3 TO 4 FT.
TUE
NE WINDS 10 TO 15 KT GULF OF VENEZUELA, AND E LESS THAN
10 KT ELSEWHERE. SEAS 3 FT.
TUE NIGHT
NE WINDS 10 TO 20 KT GULF OF VENEZUELA, AND NE LESS
THAN 10 KT ELSEWHERE. SEAS 3 FT.
WED
NE WINDS 10 TO 15 KT. SEAS 3 TO 4 FT.
WED NIGHT
E WINDS 10 TO 20 KT. SEAS 3 TO 5 FT.
THU
E WINDS 10 TO 20 KT. SEAS 3 TO 5 FT.
THU NIGHT
E WINDS 10 TO 20 KT. 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 4 TO 6 FT.
OFFSHORE LEEWARD ISLANDS AND ADJACENT ATLC WATERS FROM 15N TO
19N W OF 55W
THIS AFTERNOON
SW WINDS LESS THAN 10 KT. SEAS 3 TO 5 FT.
TONIGHT
NW WINDS LESS THAN 10 KT, SHIFTING TO SE AFTER
MIDNIGHT. SEAS 4 TO 6 FT.
TUE
S WINDS LESS THAN 10 KT. SEAS 4 TO 6 FT.
TUE NIGHT
S WINDS LESS THAN 10 KT, INCREASING TO 10 TO 15 KT
AFTER MIDNIGHT. SEAS 4 TO 6 FT.
WED
S WINDS 10 TO 15 KT. SEAS 4 TO 6 FT.
WED NIGHT
SE WINDS LESS THAN 10 KT. SEAS 4 TO 6 FT.
THU
SE WINDS LESS THAN 10 KT. SEAS 4 TO 6 FT.
THU NIGHT
E WINDS LESS THAN 10 KT. SEAS 5 TO 7 FT.
FRI
SE WINDS LESS THAN 10 KT. SEAS 6 TO 8 FT.
FRI NIGHT
E WINDS LESS THAN 10 KT, INCREASING TO 10 TO 15 KT
AFTER MIDNIGHT. SEAS 5 TO 7 FT.
OFFSHORE WINDWARD ISLANDS AND ADJACENT ATLC WATERS FROM 07N TO
15N W OF 55W
THIS AFTERNOON
E WINDS LESS THAN 10 KT. SEAS 3 TO 5 FT.
TONIGHT
E WINDS 10 TO 15 KT. SEAS 3 TO 5 FT.
TUE
SE WINDS 10 TO 15 KT. SEAS 3 TO 5 FT.
TUE NIGHT
E WINDS 10 TO 15 KT. SEAS 4 TO 6 FT.
WED
E WINDS 10 TO 15 KT. SEAS 4 TO 6 FT.
WED NIGHT
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 5 TO 7 FT.
FRI NIGHT
E WINDS 10 TO 15 KT. SEAS 5 TO 7 FT.
SYNOPSIS FOR THE THE SW N ATLANTIC INCLUDING THE BAHAMAS
SYNOPSIS
A LOW PRESSURE NEAR 25N55W WILL CONTINUE TO SUPPORT
GALE-FORCE WINDS EAST OF 55W THROUGH TONIGHT. WINDS WILL THEN
DIMINISHING TO FRESH TO STRONG THROUGH TUE MORNING. THIS PATTERN
WILL ALSO SUPPORT ROUGH TO VERY ROUGH SEAS EAST OF 70W THROUGH
MID WEEK. FARTHER WEST, A STRONG COLD FRONT EXTENDING ALONG THE
SE FLORIDA SEABOARD INTO WESTERN CUBA WILL BE FOLLOWED BY FRESH
TO NEAR-GALE FORCE WINDS AND ROUGH SEAS THE NEXT SEVERAL DAYS.
THE FRONT WILL REACH FROM 31N68W TO THE TURKS AND CAICOS AND
EASTERN CUBA TUE MORNING, AND FROM BERMUDA TO PUERTO RICO WED
MORNING. BY MID WEEK, A LOW PRESSURE SYSTEM MAY DEVELOP ALONG
THIS FRONT SUPPORTING NEAR-GALE TO GALE FORCE WINDS AND VERY
ROUGH SEAS BETWEEN BERMUDA AND THE BAHAMAS.
ATLC WATERS FROM 27N TO 31N W OF 77W
THIS AFTERNOON
W WINDS 15 TO 25 KT. SEAS 6 TO 9 FT.
TONIGHT
NW WINDS 15 TO 25 KT. SEAS 7 TO 10 FT.
TUE
N WINDS 15 TO 25 KT. SEAS 6 TO 9 FT.
TUE NIGHT
N WINDS 10 TO 20 KT. SEAS 6 TO 8 FT.
WED
N WINDS 10 TO 15 KT. SEAS 6 TO 8 FT.
WED NIGHT
W WINDS LESS THAN 10 KT. SEAS 6 TO 8 FT.
THU
SW WINDS 10 TO 20 KT. SEAS 6 TO 8 FT.
THU NIGHT
W WINDS 20 TO 30 KT. SEAS 5 TO 7 FT, BUILDING TO
7 TO 10 FT AFTER MIDNIGHT.
FRI
NW WINDS 20 TO 30 KT, BECOMING N 10 TO 20 KT IN THE
AFTERNOON. SEAS 8 TO 12 FT.
FRI NIGHT
N WINDS 10 TO 15 KT, SHIFTING TO E AFTER MIDNIGHT.
SEAS 7 TO 10 FT.
ATLC WATERS FROM 27N TO 31N BETWEEN 65W AND 77W
..GALE WARNING.
THIS AFTERNOON
S WINDS 10 TO 20 KT, EXCEPT 25 TO 35 KT E OF
60W. SEAS 6 TO 8 FT, EXCEPT TO 17 FT E OF 60W.
TONIGHT
W WINDS 15 TO 25 KT W OF 70W, AND SE 10 TO 20 KT
ELSEWHERE. SEAS 7 TO 10 FT.
TUE
NW WINDS 15 TO 25 KT. SEAS 8 TO 11 FT.
TUE NIGHT
NW WINDS 25 TO 35 KT. SEAS 10 TO 15 FT.
WED
NW WINDS 25 TO 35 KT. SEAS 13 TO 18 FT.
WED NIGHT
NW WINDS 15 TO 25 KT. SEAS 11 TO 16 FT.
THU
NW WINDS 10 TO 20 KT. SEAS 8 TO 13 FT, SUBSIDING TO 7 TO
10 FT IN THE AFTERNOON.
THU NIGHT
W WINDS 10 TO 20 KT. SEAS 6 TO 9 FT.
FRI
W WINDS 15 TO 25 KT. SEAS 8 TO 11 FT.
FRI NIGHT
NW WINDS 15 TO 25 KT. SEAS 8 TO 13 FT.
BAHAMAS N OF 22N
THIS AFTERNOON
S WINDS 10 TO 20 KT. SEAS 3 TO 4 FT.
TONIGHT
NW WINDS 10 TO 20 KT. SEAS 3 TO 5 FT.
TUE
N WINDS 15 TO 25 KT. SEAS 4 TO 6 FT.
TUE NIGHT
N WINDS 10 TO 20 KT. SEAS 4 TO 6 FT.
WED
N WINDS 10 TO 15 KT, SHIFTING TO NE IN THE AFTERNOON.
SEAS 4 TO 6 FT.
WED NIGHT
NE WINDS LESS THAN 10 KT. SEAS 5 TO 7 FT.
THU
N WINDS LESS THAN 10 KT IN THE MORNING, BECOMING VARIABLE
WINDS LESS THAN 10 KT. SEAS 5 TO 7 FT.
THU NIGHT
NW WINDS LESS THAN 10 KT, INCREASING TO 10 TO 15 KT
AFTER MIDNIGHT. SEAS 3 TO 5 FT.
FRI
N WINDS 10 TO 20 KT. SEAS 3 TO 5 FT.
FRI NIGHT
N WINDS 10 TO 15 KT, SHIFTING TO NE AFTER MIDNIGHT.
SEAS 3 TO 5 FT.
ATLC WATERS FROM 22N TO 27N BETWEEN 65W AND THE BAHAMAS
THIS AFTERNOON
SE WINDS 10 TO 15 KT. SEAS 5 TO 7 FT.
TONIGHT
W WINDS 10 TO 20 KT W OF 70W, AND SE LESS THAN 10 KT
ELSEWHERE. SEAS 5 TO 7 FT.
TUE
W OF 70W, NW WINDS 15 TO 25 KT. ELSEWHERE, S WINDS 10 TO
15 KT, SHIFTING TO W 15 TO 25 KT IN THE AFTERNOON. SEAS 7 TO
10 FT.
TUE NIGHT
NW WINDS 15 TO 25 KT. SEAS 9 TO 14 FT.
WED
NW WINDS 15 TO 25 KT. SEAS 11 TO 16 FT.
WED NIGHT
NW WINDS 15 TO 25 KT. SEAS 12 TO 17 FT.
THU
NW WINDS 10 TO 20 KT. SEAS 10 TO 15 FT, SUBSIDING TO 8 TO
12 FT IN THE AFTERNOON.
THU NIGHT
NW WINDS 10 TO 15 KT. SEAS 7 TO 10 FT.
FRI
W WINDS 10 TO 15 KT. SEAS 6 TO 8 FT.
FRI NIGHT
N WINDS 10 TO 15 KT. SEAS 6 TO 9 FT.
ATLC WATERS S OF 22N W OF 65W
THIS AFTERNOON
E WINDS LESS THAN 10 KT. SEAS 4 TO 6 FT.
TONIGHT
E WINDS LESS THAN 10 KT. SEAS 4 TO 6 FT.
TUE
SW WINDS LESS THAN 10 KT, SHIFTING TO W IN THE AFTERNOON.
SEAS 4 TO 6 FT.
TUE NIGHT
NW WINDS 10 TO 20 KT. SEAS 6 TO 8 FT.
WED
NW WINDS 10 TO 15 KT. SEAS 6 TO 8 FT.
WED NIGHT
NW WINDS 10 TO 15 KT. SEAS 6 TO 9 FT.
THU
NW WINDS LESS THAN 10 KT. SEAS 6 TO 9 FT.
THU NIGHT
NW WINDS LESS THAN 10 KT. SEAS 6 TO 8 FT.
FRI
VARIABLE WINDS LESS THAN 10 KT, BECOMING NW LESS THAN
10 KT IN THE AFTERNOON. SEAS 4 TO 6 FT.
FRI NIGHT
NE WINDS LESS THAN 10 KT. SEAS 3 TO 5 FT.
ATLC WATERS FROM 19N TO 22N BETWEEN 55W AND 65W
THIS AFTERNOON
N WINDS 10 TO 15 KT. SEAS 6 TO 9 FT.
TONIGHT
N WINDS LESS THAN 10 KT. SEAS 6 TO 9 FT.
TUE
SW WINDS LESS THAN 10 KT. SEAS 6 TO 9 FT.
TUE NIGHT
SW WINDS LESS THAN 10 KT, INCREASING TO 10 TO 15 KT
AFTER MIDNIGHT. SEAS 6 TO 8 FT.
WED
SW WINDS 10 TO 15 KT. SEAS 6 TO 8 FT.
WED NIGHT
W WINDS 10 TO 15 KT. SEAS 6 TO 9 FT.
THU
SW WINDS 10 TO 15 KT. SEAS 7 TO 10 FT.
THU NIGHT
W WINDS 10 TO 15 KT, DIMINISHING TO LESS THAN 10 KT
AFTER MIDNIGHT. SEAS 7 TO 10 FT.
FRI
SW WINDS LESS THAN 10 KT. SEAS 7 TO 10 FT.
FRI NIGHT
SW WINDS LESS THAN 10 KT IN THE EVENING, BECOMING
VARIABLE WINDS LESS THAN 10 KT. SEAS 6 TO 8 FT.
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