516
FZNT31 KNHC 160305
OFFN20
MARINE WEATHER HF VOICE BROADCAST
NWS NATIONAL HURRICANE CENTER MIAMI, FL
1105 PM EDT TUE APR 15 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 TO NEAR-GALE FORCE E WINDS AND ROUGH SEAS ARE
EXPECTED OFFSHORE OF COLOMBIA EACH NIGHT AND MORNING INTO THIS
WEEKEND. IN THE GULF OF VENEZUELA, STRONG TO NEAR-GALE FORCE
WINDS ARE LIKELY OVERNIGHT, WITH PULSING STRONG WINDS OCCURRING
THROUGH THIS WEEKEND. OTHERWISE, MODERATE TO FRESH TRADE WINDS
AND MODERATE SEAS WILL PREVAIL OVER THE CARIBBEAN SEA THROUGH
THU. LOOKING AHEAD, FRESH TO LOCALLY STRONG NE WINDS ARE EXPECTED
TO DEVELOP BY EARLY FRI ACROSS THE NORTHWESTERN THROUGH CENTRAL
CARIBBEAN, INCLUDING THROUGH THE PASSAGES, AS A STRENGTHENING
PRESSURE GRADIENT DEVELOPS BETWEEN THE COLOMBIAN LOW AND A COLD
FRONT MOVING THROUGH THE WESTERN ATLANTIC. WIDESPREAD FRESH TO
STRONG WINDS AND LOCALLY ROUGH SEAS ARE ANTICIPATED SAT INTO SUN,
BEFORE WINDS AND SEAS DIMINISH EARLY NEXT WEEK.
NW CARIBBEAN W OF 85W
OVERNIGHT
NE WINDS 10 TO 15 KT. SEAS 3 TO 5 FT.
WED
NE WINDS 10 TO 15 KT. SEAS 3 TO 4 FT.
WED NIGHT
NE WINDS 10 TO 20 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 5 FT.
FRI
E WINDS 10 TO 20 KT. SEAS 4 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 15 TO 25 KT. SEAS 5 TO 7 FT.
CARIBBEAN N OF 15N BETWEEN 72W AND 85W
OVERNIGHT
NE 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 15 KT. SEAS 3 TO 5 FT.
THU
NE WINDS 10 TO 15 KT. SEAS 4 TO 6 FT.
THU NIGHT
NE WINDS 10 TO 20 KT. SEAS 3 TO 5 FT.
FRI
NE WINDS 10 TO 20 KT. SEAS 5 TO 7 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 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.
CARIBBEAN FROM 11N TO 15N W OF 72W
OVERNIGHT
E WINDS 20 TO 30 KT WITHIN 90 NM OF COAST OF
COLOMBIA, AND NE 10 TO 20 KT ELSEWHERE. SEAS 6 TO 10 FT.
WED
E WINDS 20 TO 25 KT WITHIN 90 NM OF COAST OF COLOMBIA,
AND NE 10 TO 20 KT ELSEWHERE. SEAS 7 TO 10 FT.
WED NIGHT
NE WINDS 20 TO 30 KT. SEAS 6 TO 8 FT.
THU
NE WINDS 15 TO 25 KT. SEAS 6 TO 8 FT.
THU NIGHT
NE WINDS 20 TO 30 KT. SEAS 6 TO 8 FT.
FRI
NE WINDS 20 TO 30 KT. SEAS 6 TO 9 FT.
FRI NIGHT
NE WINDS 20 TO 30 KT. SEAS 7 TO 11 FT.
SAT
NE WINDS 20 TO 30 KT. SEAS 7 TO 11 FT.
SAT NIGHT
NE WINDS 20 TO 30 KT. SEAS 7 TO 11 FT.
SUN
E WINDS 20 TO 25 KT. SEAS 7 TO 10 FT.
SUN NIGHT
E WINDS 20 TO 25 KT. SEAS 7 TO 10 FT.
SW CARIBBEAN S OF 11N
OVERNIGHT
N WINDS 10 TO 20 KT. SEAS 6 TO 9 FT.
WED
NE WINDS 10 TO 20 KT. SEAS 6 TO 9 FT.
WED NIGHT
N WINDS 10 TO 20 KT. SEAS 6 TO 8 FT.
THU
NE WINDS 10 TO 20 KT. SEAS 6 TO 9 FT.
THU NIGHT
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 7 TO 10 FT.
SAT NIGHT
NE WINDS 10 TO 20 KT. SEAS 7 TO 10 FT.
SUN
E WINDS 10 TO 20 KT. SEAS 7 TO 10 FT.
SUN NIGHT
N WINDS LESS THAN 10 KT. SEAS 7 TO 10 FT.
CARIBBEAN BETWEEN 64W AND 72W
OVERNIGHT
E WINDS 20 TO 30 KT GULF OF VENEZUELA, AND E 10 TO
20 KT ELSEWHERE. SEAS 4 TO 6 FT.
WED
GULF OF VENEZUELA, E WINDS 20 TO 25 KT, SHIFTING TO NE
15 KT IN THE AFTERNOON. ELSEWHERE, E WINDS 10 TO 20 KT. SEAS
4 TO 6 FT.
WED NIGHT
E WINDS 10 TO 20 KT. SEAS 4 TO 6 FT.
THU
NE WINDS 15 TO 20 KT GULF OF VENEZUELA, AND E 10 TO 15 KT
ELSEWHERE. SEAS 3 TO 4 FT GULF OF VENEZUELA, AND 4 TO 6 FT
ELSEWHERE.
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 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.
OFFSHORE LEEWARD ISLANDS AND ADJACENT ATLC WATERS FROM 15N TO
19N W OF 55W
OVERNIGHT
E WINDS 10 TO 20 KT. SEAS 4 TO 6 FT.
WED
E WINDS 10 TO 20 KT. SEAS 5 TO 6 FT.
WED NIGHT
E WINDS 10 TO 15 KT. SEAS 5 TO 7 FT.
THU
E WINDS 10 TO 15 KT. SEAS 5 TO 7 FT.
THU NIGHT
E WINDS 10 TO 15 KT. SEAS 5 TO 7 FT.
FRI
E WINDS 10 TO 15 KT. SEAS 5 TO 7 FT.
FRI NIGHT
E WINDS LESS THAN 10 KT, INCREASING TO 10 TO 15 KT
AFTER MIDNIGHT. SEAS 4 TO 6 FT.
SAT
E WINDS 10 TO 15 KT. SEAS 4 TO 6 FT.
SAT NIGHT
NE WINDS 10 TO 20 KT. SEAS 4 TO 6 FT.
SUN
NE WINDS 10 TO 20 KT. SEAS 5 TO 7 FT.
SUN 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
OVERNIGHT
E WINDS 10 TO 20 KT. SEAS 4 TO 6 FT.
WED
E WINDS 10 TO 15 KT. SEAS 4 TO 6 FT.
WED NIGHT
E WINDS 10 TO 20 KT. SEAS 5 TO 7 FT.
THU
E WINDS 10 TO 20 KT. SEAS 5 TO 7 FT.
THU NIGHT
E WINDS 10 TO 20 KT. SEAS 5 TO 7 FT.
FRI
E WINDS 10 TO 20 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
NE 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.
SYNOPSIS FOR THE THE SW N ATLANTIC INCLUDING THE BAHAMAS
SYNOPSIS
FRESH SW WINDS WILL OCCUR INTO EARLY WED, GENERALLY
NORTH OF 30N BETWEEN 65W AND 75W, AS A STRONG STORM SYSTEM NORTH
OF THE REGION MOVES EASTWARD. A COLD FRONT ASSOCIATED WITH THIS
SYSTEM WILL PROGRESS SOUTHEASTWARD OFF THE COAST OF FLORIDA
OVERNIGHT, LEADING TO MODERATE TO FRESH NW WINDS BEHIND THE
FRONT. THE COLD FRONT WILL DRIFT SOUTHEASTWARD INTO THIS WEEKEND,
AND WIDESPREAD FRESH TO PULSING STRONG NE WINDS AND ROUGH SEAS,
NORTH OF THE GREATER ANTILLES TO 26N, ARE EXPECTED FRI INTO THIS
WEEKEND AS THE PRESSURE GRADIENT STRENGTHENS BETWEEN THIS FRONT
AND BUILDING HIGH PRESSURE OVER THE WESTERN ATLANTIC. ELSEWHERE,
ROUGH SEAS NORTH OF 27N AND EAST OF 60W WILL SLOWLY SUBSIDE
THROUGH WED MORNING. OTHERWISE, MODERATE TO FRESH TRADE WINDS
WILL PREVAIL SOUTH OF 20N THROUGH THIS WEEKEND.
ATLC WATERS FROM 27N TO 31N W OF 77W
OVERNIGHT
SW WINDS 10 TO 15 KT. SEAS 4 TO 6 FT.
WED
N WINDS 10 TO 15 KT. SEAS 4 TO 6 FT.
WED NIGHT
N WINDS 10 TO 15 KT. SEAS 3 TO 5 FT.
THU
NE WINDS 10 KT. SEAS 3 TO 4 FT.
THU NIGHT
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
SE WINDS 10 TO 15 KT. SEAS 3 TO 5 FT.
SAT
SE WINDS 10 TO 15 KT. SEAS 3 TO 5 FT.
SAT NIGHT
SE WINDS 10 TO 15 KT. SEAS 4 TO 5 FT.
SUN
SE WINDS 10 TO 15 KT. SEAS 4 TO 5 FT.
SUN NIGHT
SE WINDS 10 TO 15 KT. SEAS 4 TO 5 FT.
ATLC WATERS FROM 27N TO 31N BETWEEN 65W AND 77W
OVERNIGHT
SW WINDS 10 TO 20 KT. SEAS 5 TO 7 FT.
WED
SW WINDS 10 TO 15 KT. SEAS 5 TO 7 FT.
WED NIGHT
W OF 70W, N WINDS 10 TO 15 KT. ELSEWHERE, SW WINDS
10 TO 15 KT, DIMINISHING TO LESS THAN 10 KT AFTER MIDNIGHT. SEAS
5 TO 7 FT.
THU
N WINDS 10 TO 15 KT. SEAS 4 TO 6 FT.
THU NIGHT
NE WINDS 10 TO 15 KT. SEAS 4 TO 6 FT.
FRI
NE WINDS 10 TO 20 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
SE WINDS 10 TO 15 KT. SEAS 4 TO 6 FT.
SUN NIGHT
SE WINDS LESS THAN 10 KT. SEAS 3 TO 5 FT.
BAHAMAS N OF 22N
OVERNIGHT
SE WINDS LESS THAN 10 KT. SEAS 2 FT OR LESS.
WED
N WINDS LESS THAN 10 KT. SEAS 2 FT OR LESS.
WED NIGHT
NE WINDS LESS THAN 10 KT. SEAS 2 FT OR LESS.
THU
NE WINDS 10 TO 15 KT. SEAS 2 FT OR LESS, BUILDING TO 3 FT
IN THE AFTERNOON.
THU NIGHT
NE WINDS 10 TO 15 KT. SEAS 3 TO 4 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 10 TO 20 KT. SEAS 4 TO 6 FT.
SAT NIGHT
E WINDS 15 TO 25 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 4 TO 6 FT.
ATLC WATERS FROM 22N TO 27N BETWEEN 65W AND THE BAHAMAS
OVERNIGHT
SE WINDS LESS THAN 10 KT W OF 70W, AND SE 10 TO
15 KT ELSEWHERE. SEAS 4 TO 6 FT.
WED
SE WINDS LESS THAN 10 KT. SEAS 3 TO 5 FT.
WED NIGHT
E WINDS LESS THAN 10 KT. SEAS 3 TO 5 FT.
THU
W OF 70W, NE WINDS LESS THAN 10 KT, INCREASING TO 10 TO
15 KT IN THE AFTERNOON. ELSEWHERE, E WINDS LESS THAN 10 KT. SEAS
3 TO 5 FT.
THU NIGHT
NE WINDS 10 TO 15 KT. SEAS 4 TO 6 FT.
FRI
NE WINDS 10 TO 20 KT. SEAS 5 TO 7 FT.
FRI NIGHT
NE WINDS 15 TO 20 KT. SEAS 6 TO 8 FT.
SAT
E WINDS 15 TO 20 KT. SEAS 6 TO 9 FT.
SAT NIGHT
E WINDS 15 TO 20 KT. SEAS 6 TO 9 FT.
SUN
E WINDS 10 TO 20 KT. SEAS 6 TO 9 FT.
SUN NIGHT
E WINDS 10 TO 20 KT. SEAS 6 TO 8 FT.
ATLC WATERS S OF 22N W OF 65W
OVERNIGHT
E WINDS 10 TO 20 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 3 TO 5 FT.
THU
E WINDS LESS THAN 10 KT, INCREASING TO 10 TO 15 KT IN THE
AFTERNOON. SEAS 3 TO 5 FT.
THU NIGHT
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
NE 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 15 TO 25 KT. SEAS 6 TO 9 FT.
SUN
E WINDS 15 TO 25 KT. SEAS 6 TO 9 FT.
SUN NIGHT
E WINDS 15 TO 25 KT. SEAS 6 TO 8 FT.
ATLC WATERS FROM 19N TO 22N BETWEEN 55W AND 65W
OVERNIGHT
E WINDS 10 TO 15 KT. SEAS 4 TO 6 FT.
WED
E WINDS 10 TO 15 KT. SEAS 5 TO 6 FT.
WED NIGHT
E WINDS 10 TO 15 KT. SEAS 5 TO 7 FT.
THU
SE WINDS 10 TO 15 KT. SEAS 5 TO 7 FT.
THU NIGHT
SE WINDS 10 TO 15 KT. SEAS 4 TO 6 FT.
FRI
SE WINDS LESS THAN 10 KT. SEAS 5 TO 7 FT.
FRI NIGHT
E WINDS LESS THAN 10 KT, SHIFTING TO NE AFTER
MIDNIGHT. SEAS 4 TO 6 FT.
SAT
NE WINDS 10 TO 20 KT. SEAS 5 TO 6 FT.
SAT NIGHT
NE WINDS 10 TO 20 KT. SEAS 6 TO 8 FT.
SUN
NE WINDS 10 TO 20 KT. SEAS 6 TO 8 FT.
SUN NIGHT
NE WINDS 10 TO 20 KT. SEAS 6 TO 9 FT.
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