997
FZNT31 KNHC 210300
OFFN20
MARINE WEATHER HF VOICE BROADCAST
NWS NATIONAL HURRICANE CENTER MIAMI, FL
1100 PM EDT THU MAR 20 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 E TO NE WINDS OFFSHORE OF COLOMBIA
AND VENEZUELA WILL PULSE TO GALE FORCE OFFSHORE OF COLOMBIA EACH
NIGHT AND EARLY MORNING FRI INTO EARLY NEXT WEEK. A COLD FRONT
WILL ENTER THE NORTHWESTERN CARIBBEAN LATE TONIGHT, LEADING TO
MODERATE TO FRESH NE WINDS AND MODERATE SEAS IN THE WAKE OF THE
FRONT THROUGH FRI MORNING. FRESH NE WINDS WILL PULSE IN THE
WINDWARD PASSAGE AND IN THE LEE OF CUBA FRI INTO EARLY NEXT
WEEK. FRESH TO STRONG SE WINDS WILL DEVELOP ACROSS THE GULF OF
HONDURAS LATE SUN INTO EARLY NEXT WEEK.
NW CARIBBEAN W OF 85W
OVERNIGHT
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
NE WINDS LESS THAN 10 KT, SHIFTING TO E AFTER
MIDNIGHT. SEAS 4 TO 6 FT.
SAT
E WINDS 10 TO 15 KT. SEAS 3 TO 5 FT.
SAT NIGHT
E WINDS 10 TO 15 KT. SEAS 3 TO 4 FT.
SUN
E WINDS 10 TO 15 KT. SEAS 3 TO 4 FT.
SUN NIGHT
E WINDS 10 TO 20 KT. SEAS 4 TO 6 FT.
MON
SE WINDS 10 TO 20 KT. SEAS 5 TO 7 FT.
MON NIGHT
E WINDS 10 TO 20 KT. SEAS 5 TO 7 FT.
TUE
E WINDS 10 TO 20 KT. SEAS 5 TO 7 FT.
TUE NIGHT
E WINDS 10 TO 15 KT. SEAS 4 TO 5 FT.
CARIBBEAN N OF 15N BETWEEN 72W AND 85W
OVERNIGHT
NE WINDS 10 TO 15 KT S OF 18N, AND N LESS THAN
10 KT ELSEWHERE. SEAS 3 FT.
FRI
NE WINDS 10 TO 15 KT. SEAS 3 TO 5 FT S OF 18N, AND 2 FT
OR LESS ELSEWHERE.
FRI NIGHT
S OF 18N, NE WINDS 10 TO 20 KT. ELSEWHERE, NE WINDS
LESS THAN 10 KT, INCREASING TO 10 TO 15 KT AFTER MIDNIGHT. SEAS
4 TO 6 FT S OF 18N, AND 3 FT ELSEWHERE.
SAT
E WINDS 10 TO 20 KT. SEAS 5 TO 7 FT S OF 18N, AND 3 TO
4 FT ELSEWHERE.
SAT NIGHT
E WINDS 10 TO 20 KT. SEAS 4 TO 6 FT.
SUN
E WINDS 10 TO 20 KT. SEAS 5 TO 7 FT.
SUN NIGHT
E WINDS 10 TO 20 KT. SEAS 5 TO 7 FT.
MON
E WINDS 10 TO 20 KT. SEAS 6 TO 8 FT.
MON NIGHT
E WINDS 10 TO 20 KT. SEAS 6 TO 8 FT.
TUE
E WINDS 10 TO 20 KT. SEAS 5 TO 7 FT.
TUE NIGHT
E WINDS 10 TO 20 KT. SEAS 5 TO 7 FT.
CARIBBEAN FROM 11N TO 15N W OF 72W
..GALE WARNING
..GALE CONDITIONS POSSIBLE
OVERNIGHT
NE WINDS 15 TO 25 KT WITHIN 90 NM OF COAST OF
COLOMBIA, AND NE 10 TO 20 KT ELSEWHERE. SEAS 5 TO 7 FT.
FRI
NE WINDS 10 TO 20 KT. SEAS 5 TO 7 FT.
FRI NIGHT
NE WINDS 25 TO 35 KT WITHIN 90 NM OF COAST OF
COLOMBIA, AND NE 15 TO 25 KT ELSEWHERE. SEAS 6 TO 8 FT.
SAT
NE WINDS 15 TO 25 KT. SEAS 6 TO 9 FT.
SAT NIGHT
NE WINDS 25 TO 35 KT WITHIN 90 NM OF COAST OF
COLOMBIA, AND NE 15 TO 25 KT ELSEWHERE. SEAS 8 TO 11 FT.
SUN
E WINDS 15 TO 25 KT. SEAS 8 TO 13 FT.
SUN NIGHT
NE WINDS 25 TO 35 KT WITHIN 90 NM OF COAST OF
COLOMBIA, AND NE 15 TO 25 KT ELSEWHERE. SEAS 8 TO 13 FT.
MON
E WINDS 15 TO 25 KT. SEAS 8 TO 13 FT.
MON NIGHT
E WINDS 15 TO 25 KT. SEAS 8 TO 11 FT.
TUE
E WINDS 15 TO 25 KT. SEAS 8 TO 11 FT.
TUE NIGHT
E WINDS 15 TO 25 KT. SEAS 7 TO 10 FT.
SW CARIBBEAN S OF 11N
OVERNIGHT
N 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 9 FT.
SAT
NE WINDS 10 TO 20 KT. SEAS 7 TO 10 FT.
SAT NIGHT
NE WINDS 15 TO 25 KT. SEAS 7 TO 10 FT.
SUN
NE WINDS 15 TO 25 KT. SEAS 8 TO 13 FT.
SUN NIGHT
NE WINDS 15 TO 25 KT. SEAS 8 TO 13 FT.
MON
NE WINDS 10 TO 20 KT. SEAS 8 TO 13 FT.
MON NIGHT
NE WINDS 10 TO 15 KT. SEAS 8 TO 11 FT.
TUE
NE WINDS 10 TO 15 KT. SEAS 7 TO 10 FT.
TUE NIGHT
N WINDS LESS THAN 10 KT, INCREASING TO 10 TO 15 KT
AFTER MIDNIGHT. SEAS 6 TO 9 FT.
CARIBBEAN BETWEEN 64W AND 72W
OVERNIGHT
E WINDS 10 TO 20 KT. SEAS 4 TO 6 FT.
FRI
E WINDS 10 TO 20 KT. SEAS 3 TO 5 FT GULF OF VENEZUELA,
AND 5 TO 7 FT ELSEWHERE.
FRI NIGHT
NE WINDS 15 TO 25 KT GULF OF VENEZUELA, AND E 10 TO
20 KT ELSEWHERE. SEAS 5 TO 7 FT.
SAT
E WINDS 15 TO 25 KT. SEAS 3 TO 5 FT GULF OF VENEZUELA,
AND 6 TO 8 FT ELSEWHERE.
SAT NIGHT
E WINDS 15 TO 25 KT. SEAS 6 TO 8 FT.
SUN
E WINDS 10 TO 20 KT. SEAS 6 TO 8 FT.
SUN NIGHT
E WINDS 15 TO 25 KT. SEAS 6 TO 8 FT.
MON
E WINDS 15 TO 25 KT. SEAS 6 TO 9 FT.
MON NIGHT
E WINDS 15 TO 25 KT. SEAS 6 TO 9 FT.
TUE
E WINDS 10 TO 20 KT. SEAS 6 TO 9 FT.
TUE NIGHT
E WINDS 10 TO 20 KT. SEAS 6 TO 8 FT.
OFFSHORE LEEWARD ISLANDS AND ADJACENT ATLC WATERS FROM 15N TO
19N W OF 55W
OVERNIGHT
E WINDS LESS THAN 10 KT. SEAS 6 TO 8 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.
SAT
E WINDS 10 TO 15 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 5 TO 7 FT.
MON
E WINDS 10 TO 20 KT. SEAS 6 TO 8 FT.
MON NIGHT
E WINDS 10 TO 20 KT. SEAS 6 TO 9 FT.
TUE
E WINDS 10 TO 20 KT. SEAS 6 TO 9 FT.
TUE NIGHT
E WINDS 10 TO 20 KT. SEAS 6 TO 9 FT.
OFFSHORE WINDWARD ISLANDS AND ADJACENT ATLC WATERS FROM 07N TO
15N W OF 55W
OVERNIGHT
E WINDS 10 TO 15 KT. SEAS 4 TO 6 FT.
FRI
E WINDS 10 TO 15 KT. SEAS 6 TO 8 FT.
FRI NIGHT
E WINDS 10 TO 20 KT. SEAS 5 TO 7 FT.
SAT
E WINDS 10 TO 20 KT. SEAS 6 TO 8 FT.
SAT NIGHT
E WINDS 10 TO 20 KT. SEAS 6 TO 8 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 8 FT.
MON NIGHT
E WINDS 10 TO 20 KT. SEAS 6 TO 8 FT.
TUE
E WINDS 10 TO 20 KT. SEAS 6 TO 9 FT.
TUE NIGHT
E WINDS 10 TO 20 KT. SEAS 6 TO 9 FT.
SYNOPSIS FOR THE THE SW N ATLANTIC INCLUDING THE BAHAMAS
SYNOPSIS
FRESH TO STRONG S TO SW WINDS OVER THE NE WATERS
WILL DIMINISH LATE TONIGHT. ROUGH SEAS E OF 70W DILL DIMINISH
THROUGH FRI. A COLD FRONT OFF THE COAST OF NE FLORIDA WILL
PROGRESS EASTWARD, WITH FRESH TO STRONG SW WINDS AHEAD OF THE
FRONT, AND STRONG TO NEAR- GALE FORCE WINDS AND LOCALLY VERY
ROUGH SEAS BEHIND THE FRONT INTO EARLY SAT. FRESH TRADE WINDS AND
ROUGH SEAS ARE EXPECTED TO DEVELOP EAST OF THE WINDWARD ISLANDS
THIS WEEKEND INTO EARLY NEXT WEEK. HIGH PRESSURE WILL BUILD IN
THE WAKE OF THE FRONT OVER THE WESTERN ATLANTIC THIS WEEKEND.
ATLC WATERS FROM 27N TO 31N W OF 77W
OVERNIGHT
W WINDS 20 TO 30 KT. SEAS 7 TO 10 FT.
FRI
NW WINDS 20 TO 25 KT, DIMINISHING TO 10 TO 20 KT IN THE
AFTERNOON. SEAS 8 TO 12 FT.
FRI NIGHT
N WINDS 10 TO 15 KT IN THE EVENING, BECOMING
VARIABLE WINDS LESS THAN 10 KT. SEAS 6 TO 9 FT.
SAT
SW WINDS LESS THAN 10 KT. SEAS 4 TO 6 FT.
SAT NIGHT
SW WINDS LESS THAN 10 KT. SEAS 3 TO 4 FT.
SUN
SE WINDS LESS THAN 10 KT. SEAS 3 FT.
SUN NIGHT
SE WINDS 10 TO 15 KT. SEAS 2 FT OR LESS, BUILDING
TO 3 FT AFTER MIDNIGHT.
MON
S WINDS 10 TO 15 KT. SEAS 3 TO 5 FT.
MON NIGHT
S WINDS 10 TO 15 KT. SEAS 3 TO 5 FT.
TUE
W WINDS 10 TO 15 KT. SEAS 3 TO 4 FT.
TUE NIGHT
N WINDS 10 KT. SEAS 3 TO 4 FT.
ATLC WATERS FROM 27N TO 31N BETWEEN 65W AND 77W
OVERNIGHT
W WINDS 15 TO 25 KT W OF 70W, AND W 10 TO 15 KT
ELSEWHERE. SEAS 6 TO 9 FT.
FRI
W OF 70W, W WINDS 15 TO 25 KT. ELSEWHERE, W WINDS 10 TO
15 KT, SHIFTING TO SW 15 TO 25 KT IN THE AFTERNOON. SEAS 8 TO
11 FT W OF 70W, AND 6 TO 8 FT ELSEWHERE.
FRI NIGHT
W OF 70W, NW WINDS 15 TO 25 KT, SHIFTING TO N 10 TO
15 KT AFTER MIDNIGHT. ELSEWHERE, NW WINDS 15 TO 25 KT. SEAS 8 TO
13 FT W OF 70W, AND 8 TO 11 FT ELSEWHERE.
SAT
W OF 70W, NE WINDS LESS THAN 10 KT, SHIFTING TO S IN THE
AFTERNOON. ELSEWHERE, N WINDS 10 TO 15 KT IN THE MORNING,
BECOMING VARIABLE WINDS LESS THAN 10 KT. SEAS 7 TO 10 FT.
SAT NIGHT
NW WINDS LESS THAN 10 KT. SEAS 6 TO 8 FT.
SUN
VARIABLE WINDS LESS THAN 10 KT. SEAS 4 TO 6 FT.
SUN NIGHT
SE WINDS LESS THAN 10 KT. SEAS 3 TO 5 FT.
MON
SE WINDS 10 TO 15 KT. SEAS 3 TO 5 FT.
MON NIGHT
SE WINDS 10 TO 15 KT. SEAS 3 TO 5 FT.
TUE
S WINDS 10 TO 15 KT. SEAS 4 TO 6 FT.
TUE NIGHT
S WINDS 10 TO 15 KT, DIMINISHING TO LESS THAN 10 KT
AFTER MIDNIGHT. SEAS 4 TO 6 FT.
BAHAMAS N OF 22N
OVERNIGHT
NW WINDS LESS THAN 10 KT, SHIFTING TO W AFTER
MIDNIGHT. SEAS 3 TO 5 FT.
FRI
NW 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.
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 10 TO 15 KT. SEAS 3 FT.
SUN NIGHT
E WINDS 10 TO 15 KT. SEAS 3 FT.
MON
SE WINDS 10 TO 15 KT. SEAS 3 FT.
MON NIGHT
SE WINDS 10 TO 15 KT. SEAS 3 TO 4 FT.
TUE
SE WINDS 10 TO 15 KT. SEAS 3 TO 4 FT.
TUE NIGHT
E WINDS LESS THAN 10 KT. SEAS 3 FT.
ATLC WATERS FROM 22N TO 27N BETWEEN 65W AND THE BAHAMAS
OVERNIGHT
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
NW WINDS 10 TO 15 KT. SEAS 6 TO 9 FT W OF 70W, AND
5 TO 7 FT ELSEWHERE.
SAT
E WINDS LESS THAN 10 KT. SEAS 6 TO 8 FT.
SAT NIGHT
E WINDS LESS THAN 10 KT. SEAS 5 TO 7 FT.
SUN
E WINDS 10 KT. SEAS 4 TO 6 FT.
SUN NIGHT
E WINDS 10 TO 15 KT. SEAS 4 TO 6 FT.
MON
E WINDS 10 TO 15 KT. SEAS 3 TO 5 FT.
MON NIGHT
SE WINDS 10 TO 15 KT. SEAS 4 TO 6 FT.
TUE
SE WINDS 10 TO 15 KT. SEAS 4 TO 6 FT.
TUE NIGHT
SE WINDS 10 TO 15 KT. SEAS 4 TO 6 FT.
ATLC WATERS S OF 22N W OF 65W
OVERNIGHT
NW WINDS LESS THAN 10 KT. SEAS 6 TO 8 FT.
FRI
VARIABLE WINDS LESS THAN 10 KT. SEAS 4 TO 6 FT.
FRI NIGHT
NE 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 10 TO 15 KT. SEAS 4 TO 6 FT.
SUN
E WINDS 10 TO 15 KT. SEAS 4 TO 6 FT.
SUN NIGHT
E WINDS 10 TO 20 KT. SEAS 4 TO 6 FT.
MON
E WINDS 10 TO 20 KT. SEAS 5 TO 7 FT.
MON NIGHT
E WINDS 10 TO 20 KT. SEAS 5 TO 7 FT.
TUE
E WINDS 10 TO 20 KT. SEAS 5 TO 7 FT.
TUE NIGHT
E WINDS 10 TO 20 KT. SEAS 4 TO 6 FT.
ATLC WATERS FROM 19N TO 22N BETWEEN 55W AND 65W
OVERNIGHT
W WINDS LESS THAN 10 KT. SEAS 8 TO 11 FT.
FRI
SW WINDS LESS THAN 10 KT. SEAS 7 TO 10 FT.
FRI NIGHT
VARIABLE WINDS LESS THAN 10 KT. SEAS 6 TO 8 FT.
SAT
E WINDS LESS THAN 10 KT. SEAS 4 TO 6 FT.
SAT NIGHT
E WINDS 10 TO 15 KT. SEAS 4 TO 6 FT.
SUN
E WINDS 10 TO 15 KT. SEAS 4 TO 6 FT.
SUN NIGHT
E WINDS 10 TO 15 KT. SEAS 5 TO 6 FT.
MON
E WINDS 10 TO 15 KT. SEAS 6 TO 7 FT.
MON NIGHT
E WINDS 15 TO 20 KT. SEAS 6 TO 7 FT.
TUE
E WINDS 15 TO 20 KT. SEAS 7 TO 8 FT.
TUE NIGHT
E WINDS 15 TO 20 KT. SEAS 7 TO 8 FT.
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