089
FZNT31 KNHC 230315
OFFN20
MARINE WEATHER HF VOICE BROADCAST
NWS NATIONAL HURRICANE CENTER MIAMI, FL
1115 PM EDT TUE JUL 22 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
THE PRESSURE GRADIENT BETWEEN THE ATLANTIC HIGH
PRESSURE AND THE COLOMBIAN LOW WILL CONTINUE TO SUPPORT FRESH TO
STRONG WINDS OVER THE SOUTH-CENTRAL CARIBBEAN THROUGH WED. FRESH
TO LOCALLY STRONG NORTHEAST WINDS AND MODERATE TO ROUGH SEAS IN
THE WINDWARD PASSAGE ARE EXPECTED TO CONTINUE THROUGH THE
FORECAST PERIOD. A LARGE TROPICAL WAVE, CURRENTLY LOCATED ALONG
57W WILL REACH THE LESSER ANTILLES EARLY ON WED, THEN MOVE INTO
THE EASTERN CARIBBEAN DURING WED, PASSING JUST SOUTH OF PUERTO
RICO ON THU MORNING. SCATTERED SHOWERS AND ISOLATED
THUNDERSTORMS AHEAD OF THE WAVE EXTEND INTO THE EASTERN
CARIBBEAN SEA. FRESH TO STRONG EASTERLY WINDS AND MODERATE TO
ROUGH SEAS WILL SPREAD WESTWARD THROUGH THE CENTRAL CARIBBEAN
WED THROUGH FRI. ANOTHER TROPICAL WAVE ACCOMPANIED BY SCATTERED
SHOWERS AND THUNDERSTORMS IS EXPECTED TO MOVE THROUGH THE
TROPICAL N ATLANTIC FRI THOUGH EARLY SAT, AND THROUGH THE
EASTERN CARIBBEAN AFTERWARD THROUGH SUN NIGHT.
NW CARIBBEAN W OF 85W
OVERNIGHT
E WINDS 10 TO 15 KT. SEAS 3 FT.
WED
E WINDS LESS THAN 10 KT. SEAS 3 FT.
WED NIGHT
E WINDS 10 TO 15 KT. SEAS 3 TO 4 FT.
THU
SE WINDS 10 TO 15 KT. SEAS 3 TO 4 FT.
THU NIGHT
E WINDS 10 TO 20 KT. SEAS 3 TO 4 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 4 TO 6 FT.
SAT NIGHT
E WINDS 10 TO 15 KT. SEAS 4 TO 5 FT.
SUN
E WINDS 10 TO 15 KT. SEAS 4 TO 5 FT.
SUN NIGHT
E WINDS 10 TO 20 KT. SEAS 4 TO 5 FT.
CARIBBEAN N OF 15N BETWEEN 72W AND 85W
OVERNIGHT
E WINDS 10 TO 15 KT S OF 18N, AND E LESS THAN 10 KT
ELSEWHERE. SEAS 4 TO 6 FT S OF 18N, AND 2 FT OR LESS ELSEWHERE.
WED
E WINDS 10 TO 20 KT S OF 18N, AND SE LESS THAN 10 KT
ELSEWHERE. S OF 18N, SEAS 4 TO 6 FT. ELSEWHERE, SEAS 2 FT OR
LESS, BUILDING TO 3 FT IN THE AFTERNOON.
WED NIGHT
E WINDS 10 TO 20 KT S OF 18N, AND E LESS THAN 10 KT
ELSEWHERE. SEAS 4 TO 6 FT S OF 18N, AND 3 FT ELSEWHERE.
THU
E WINDS 10 TO 20 KT S OF 18N, AND E LESS THAN 10 KT
ELSEWHERE. SEAS 5 TO 7 FT S OF 18N, AND 3 TO 4 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 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.
CARIBBEAN FROM 11N TO 15N W OF 72W
OVERNIGHT
E WINDS 20 TO 25 KT WITHIN 90 NM OF COAST OF
COLOMBIA, AND NE 10 TO 20 KT ELSEWHERE. SEAS 5 TO 7 FT.
WED
E WINDS 10 TO 20 KT. SEAS 5 TO 7 FT.
WED NIGHT
NE 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 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 5 TO 7 FT.
SUN NIGHT
E WINDS 10 TO 20 KT. SEAS 5 TO 7 FT.
SW CARIBBEAN S OF 11N
OVERNIGHT
N WINDS 10 TO 15 KT. SEAS 4 TO 6 FT.
WED
NE WINDS 10 TO 15 KT. SEAS 5 TO 7 FT.
WED NIGHT
N WINDS LESS THAN 10 KT, INCREASING TO 10 TO 15 KT
AFTER MIDNIGHT. SEAS 4 TO 6 FT.
THU
E WINDS 10 TO 15 KT. SEAS 4 TO 6 FT.
THU NIGHT
SE 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. SEAS 3 TO 5 FT.
FRI NIGHT
VARIABLE WINDS LESS THAN 10 KT. SEAS 3 TO 5 FT.
SAT
VARIABLE WINDS LESS THAN 10 KT. SEAS 4 TO 6 FT.
SAT NIGHT
VARIABLE WINDS LESS THAN 10 KT. SEAS 4 TO 6 FT.
SUN
S WINDS LESS THAN 10 KT. SEAS 3 TO 5 FT.
SUN NIGHT
VARIABLE WINDS LESS THAN 10 KT. SEAS 3 TO 5 FT.
CARIBBEAN BETWEEN 64W AND 72W
OVERNIGHT
E WINDS 20 TO 25 KT GULF OF VENEZUELA, AND E 10 TO
20 KT ELSEWHERE. SEAS 4 TO 6 FT.
WED
E WINDS 10 TO 20 KT. SEAS 3 TO 5 FT GULF OF VENEZUELA,
AND 4 TO 6 FT ELSEWHERE.
WED NIGHT
GULF OF VENEZUELA, NE WINDS 10 TO 20 KT, SHIFTING
TO E 20 TO 25 KT AFTER MIDNIGHT. ELSEWHERE, E WINDS 10 TO 20 KT.
SEAS 3 TO 5 FT GULF OF VENEZUELA, AND 5 TO 7 FT ELSEWHERE.
THU
E WINDS 10 TO 20 KT. SEAS 3 TO 5 FT GULF OF VENEZUELA,
AND 5 TO 7 FT ELSEWHERE.
THU NIGHT
E WINDS 10 TO 20 KT. SEAS 6 TO 8 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 5 TO 7 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 4 TO 6 FT.
OFFSHORE LEEWARD ISLANDS AND ADJACENT ATLC WATERS FROM 15N TO
19N W OF 55W
OVERNIGHT
E WINDS 10 TO 20 KT. SEAS 5 TO 7 FT.
WED
E WINDS 10 TO 20 KT. SEAS 5 TO 7 FT.
WED NIGHT
E WINDS 10 TO 20 KT. SEAS 5 TO 7 FT.
THU
E WINDS 10 TO 15 KT. SEAS 4 TO 6 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.
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 5 TO 7 FT.
SUN NIGHT
E WINDS 10 TO 20 KT. SEAS 5 TO 7 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.
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 20 KT. SEAS 4 TO 6 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 15 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 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.
SYNOPSIS FOR THE THE SW N ATLANTIC INCLUDING THE BAHAMAS
SYNOPSIS
THE BERMUDA-AZORES HIGH WILL CONTINUE TO DOMINATE
THE WEATHER PATTERN ACROSS THE FORECAST REGION THROUGH WED
PRODUCING A GENTLE TO MODERATE ANTICYCLONIC FLOW ALONG WITH
MOSTLY MODERATE SEAS. FRESH TO STRONG WINDS AND MODERATE SEAS
FROM JUST NORTH OF HISPANIOLA TO 22N, INCLUDING THE APPROACHES TO
THE WINDWARD PASSAGE, ARE EXPECTED TO CONTINUE THROUGH THE REST
OF THE FORECAST PERIOD. A FRONTAL BOUNDARY IS FORECAST TO REACH
THE NE WATERS TOWARD THE END OF THE WORK-WEEK AND DISSIPATE.
LITTLE CHANGE IS EXPECTED IN WINDS AND SEAS.
ATLC WATERS FROM 27N TO 31N W OF 77W
OVERNIGHT
S WINDS 10 TO 15 KT. SEAS 3 TO 4 FT.
WED
S WINDS 10 TO 15 KT. SEAS 3 TO 4 FT.
WED NIGHT
SE WINDS 10 TO 15 KT. SEAS 3 FT.
THU
SE WINDS 10 TO 15 KT. SEAS 3 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 S LESS
THAN 10 KT AFTER MIDNIGHT. SEAS 3 TO 4 FT.
SAT
NW WINDS LESS THAN 10 KT. SEAS 3 FT.
SAT NIGHT
VARIABLE WINDS LESS THAN 10 KT, BECOMING SW LESS
THAN 10 KT AFTER MIDNIGHT. SEAS 3 TO 4 FT.
SUN
W WINDS LESS THAN 10 KT. SEAS 3 TO 4 FT.
SUN NIGHT
S TO SW WINDS LESS THAN 10 KT. SEAS 3 TO 4 FT.
ATLC WATERS FROM 27N TO 31N BETWEEN 65W AND 77W
OVERNIGHT
S WINDS 10 KT. SEAS 3 TO 4 FT.
WED
S WINDS 10 KT. SEAS 3 TO 4 FT.
WED NIGHT
S WINDS LESS THAN 10 KT. SEAS 3 TO 4 FT.
THU
W OF 70W, S WINDS LESS THAN 10 KT. ELSEWHERE, W WINDS
LESS THAN 10 KT, INCREASING TO 10 TO 15 KT IN THE AFTERNOON.
SEAS 3 TO 4 FT.
THU NIGHT
N WINDS LESS THAN 10 KT. SEAS 3 TO 4 FT.
FRI
N WINDS LESS THAN 10 KT. SEAS 3 TO 4 FT.
FRI NIGHT
N WINDS LESS THAN 10 KT. SEAS 3 TO 4 FT.
SAT
N WINDS LESS THAN 10 KT. SEAS 3 TO 4 FT.
SAT NIGHT
N WINDS LESS THAN 10 KT IN THE EVENING, BECOMING
VARIABLE WINDS LESS THAN 10 KT. SEAS 3 FT.
SUN
VARIABLE WINDS LESS THAN 10 KT. SEAS 3 FT.
SUN NIGHT
S WINDS LESS THAN 10 KT. SEAS 3 FT.
BAHAMAS N OF 22N
OVERNIGHT
SE WINDS 10 TO 15 KT. SEAS 3 FT.
WED
SE WINDS 10 TO 15 KT. SEAS 3 FT.
WED NIGHT
E WINDS 10 TO 20 KT. SEAS 3 TO 4 FT.
THU
SE WINDS 10 TO 20 KT. SEAS 3 TO 4 FT.
THU NIGHT
E WINDS 10 TO 20 KT. SEAS 3 TO 5 FT.
FRI
E WINDS 10 TO 15 KT. SEAS 3 TO 4 FT.
FRI NIGHT
E WINDS 10 TO 15 KT. SEAS 3 FT.
SAT
E WINDS 10 TO 15 KT. SEAS 3 FT IN THE MORNING, SUBSIDING
TO 2 FT OR LESS.
SAT NIGHT
E WINDS 10 TO 15 KT. SEAS 2 FT OR LESS.
SUN
E WINDS LESS THAN 10 KT. SEAS 2 FT OR LESS.
SUN NIGHT
E WINDS LESS THAN 10 KT. SEAS 2 FT OR LESS.
ATLC WATERS FROM 22N TO 27N BETWEEN 65W AND THE BAHAMAS
OVERNIGHT
SE WINDS 10 TO 15 KT. SEAS 3 TO 5 FT.
WED
SE WINDS 10 TO 15 KT. SEAS 3 TO 5 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 5 FT.
FRI
NE WINDS LESS THAN 10 KT. SEAS 3 TO 5 FT.
FRI NIGHT
NE WINDS LESS THAN 10 KT. SEAS 3 TO 4 FT.
SAT
NE WINDS LESS THAN 10 KT. SEAS 3 TO 4 FT.
SAT NIGHT
SE WINDS LESS THAN 10 KT. SEAS 3 FT.
SUN
SE WINDS LESS THAN 10 KT. SEAS 3 TO 4 FT.
SUN NIGHT
SE WINDS LESS THAN 10 KT. SEAS 3 TO 4 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 20 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 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 15 KT. SEAS 3 TO 5 FT.
ATLC WATERS FROM 19N TO 22N BETWEEN 55W AND 65W
OVERNIGHT
E WINDS 10 TO 20 KT. SEAS 5 TO 6 FT.
WED
E WINDS 10 TO 20 KT. SEAS 5 TO 7 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 5 FT.
FRI
E WINDS 10 TO 15 KT. SEAS 3 TO 5 FT.
FRI NIGHT
E WINDS 10 TO 15 KT. SEAS 3 TO 5 FT.
SAT
E WINDS 10 TO 15 KT. SEAS 4 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 15 KT. SEAS 5 TO 6 FT.
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