946
FZNT31 KNHC 010447
OFFN20
MARINE WEATHER HF VOICE BROADCAST
NWS NATIONAL HURRICANE CENTER MIAMI, FL
1247 AM EDT TUE JUL 1 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
WINDS HAVE PULSED TO GALE FORCE OFFSHORE COLOMBIA IN
THE SOUTH-CENTRAL AND SOUTHWEST CARIBBEAN AND A GALE WARNING HAS
BEEN ISSUED. VERY ROUGH SEAS ARE ALSO BUILDING. WINDS AND SEAS
WILL SUBSIDE SOMEWHAT BY LATE THIS MORNING, BUT WINDS WILL PULSE
AGAIN TO NEAR GALE-FORCE TONIGHT INTO WED MORNING. THE PRESSURE
GRADIENT BETWEEN THE BERMUDA HIGH AND LOWER PRESSURE ACROSS NW
COLOMBIA AND THE SW CARIBBEAN WILL SUPPORT FRESH TO STRONG
TRADES AND ROUGH SEAS ACROSS MOST OF THE CENTRAL AND SW
CARIBBEAN THROUGH WED, THEN DIMINISH N OF 15N INTO THE WEEKEND.
NW CARIBBEAN W OF 85W
OVERNIGHT
E WINDS 10 TO 15 KT. SEAS 4 TO 5 FT.
TODAY
E WINDS 10 TO 15 KT. SEAS 3 TO 5 FT.
TONIGHT
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 15 KT. SEAS 4 TO 6 FT.
THU
E WINDS 10 TO 15 KT. SEAS 3 TO 5 FT.
THU NIGHT
E WINDS 10 TO 15 KT. SEAS 3 TO 4 FT.
FRI
E WINDS 10 TO 15 KT. SEAS 3 TO 4 FT.
FRI NIGHT
E WINDS 10 TO 15 KT. SEAS 3 TO 4 FT.
SAT
E WINDS 10 TO 15 KT. SEAS 3 TO 4 FT.
SAT NIGHT
E WINDS 10 TO 15 KT. SEAS 3 TO 4 FT.
CARIBBEAN N OF 15N BETWEEN 72W AND 85W
OVERNIGHT
E WINDS 15 TO 25 KT S OF 18N, AND E 10 TO 15 KT
ELSEWHERE. SEAS 7 TO 10 FT S OF 18N, AND 3 TO 5 FT ELSEWHERE.
TODAY
E WINDS 15 TO 25 KT S OF 18N, AND E 10 TO 15 KT
ELSEWHERE. SEAS 7 TO 10 FT S OF 18N, AND 3 TO 5 FT ELSEWHERE.
TONIGHT
E WINDS 10 TO 20 KT. SEAS 7 TO 10 FT S OF 18N, AND
4 TO 6 FT ELSEWHERE.
WED
E WINDS 10 TO 20 KT. SEAS 6 TO 9 FT S OF 18N, AND 4 TO
6 FT ELSEWHERE.
WED NIGHT
E WINDS 10 TO 20 KT S OF 18N, AND E LESS THAN 10 KT
ELSEWHERE. SEAS 6 TO 8 FT S OF 18N, AND 3 TO 5 FT ELSEWHERE.
THU
E WINDS 10 TO 20 KT. SEAS 5 TO 7 FT.
THU NIGHT
E WINDS 10 TO 20 KT. SEAS 4 TO 6 FT.
FRI
E 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 4 TO 6 FT.
SAT NIGHT
E WINDS 10 TO 20 KT. SEAS 4 TO 6 FT.
CARIBBEAN FROM 11N TO 15N W OF 72W
..GALE WARNING INTO TUE MORNING
OVERNIGHT
E WINDS 25 TO 35 KT. SEAS 8 TO 11 FT.
TODAY
E WINDS 20 TO 30 KT. SEAS 8 TO 13 FT.
TONIGHT
E WINDS 20 TO 30 KT WITHIN 90 NM OF COAST OF
COLOMBIA, AND E 15 TO 25 KT ELSEWHERE. SEAS 8 TO 13 FT.
WED
E WINDS 15 TO 25 KT. SEAS 8 TO 12 FT.
WED NIGHT
E WINDS 15 TO 25 KT WITHIN 90 NM OF COAST OF
COLOMBIA, AND E 10 TO 20 KT ELSEWHERE. SEAS 7 TO 9 FT WITHIN
90 NM OF COAST OF COLOMBIA, AND 8 TO 11 FT ELSEWHERE.
THU
E WINDS 10 TO 20 KT. SEAS 7 TO 10 FT.
THU NIGHT
E WINDS 10 TO 20 KT. SEAS 6 TO 9 FT.
FRI
E WINDS 10 TO 20 KT. SEAS 6 TO 9 FT.
FRI NIGHT
E WINDS 10 TO 20 KT. SEAS 6 TO 9 FT.
SAT
E WINDS 10 TO 20 KT. SEAS 6 TO 9 FT.
SAT NIGHT
E WINDS 10 TO 20 KT. SEAS 6 TO 8 FT.
SW CARIBBEAN S OF 11N
OVERNIGHT
NE WINDS 10 TO 15 KT. SEAS 5 TO 7 FT.
TODAY
E WINDS 10 TO 15 KT. SEAS 6 TO 9 FT.
TONIGHT
N WINDS LESS THAN 10 KT, SHIFTING TO NE AFTER
MIDNIGHT. SEAS 6 TO 9 FT.
WED
E WINDS 10 TO 15 KT. SEAS 6 TO 9 FT.
WED NIGHT
NE WINDS LESS THAN 10 KT. SEAS 6 TO 9 FT.
THU
NE WINDS LESS THAN 10 KT. SEAS 5 TO 7 FT.
THU NIGHT
NE WINDS LESS THAN 10 KT. SEAS 5 TO 7 FT.
FRI
E WINDS LESS THAN 10 KT, SHIFTING TO SW IN THE AFTERNOON.
SEAS 4 TO 6 FT.
FRI NIGHT
VARIABLE WINDS LESS THAN 10 KT. SEAS 4 TO 6 FT.
SAT
S WINDS LESS THAN 10 KT. SEAS 4 TO 6 FT.
SAT NIGHT
VARIABLE WINDS LESS THAN 10 KT. SEAS 3 TO 5 FT.
CARIBBEAN BETWEEN 64W AND 72W
OVERNIGHT
E WINDS 20 TO 30 KT GULF OF VENEZUELA, AND E 15 TO
25 KT ELSEWHERE. SEAS 4 TO 6 FT GULF OF VENEZUELA, AND 7 TO
10 FT ELSEWHERE.
TODAY
E WINDS 20 TO 25 KT GULF OF VENEZUELA, AND E 10 TO
20 KT ELSEWHERE. SEAS 3 TO 5 FT GULF OF VENEZUELA, AND 7 TO
10 FT ELSEWHERE.
TONIGHT
E WINDS 20 TO 30 KT GULF OF VENEZUELA, AND E 10 TO
20 KT ELSEWHERE. SEAS 3 TO 5 FT GULF OF VENEZUELA, AND 6 TO 9 FT
ELSEWHERE.
WED
E WINDS 10 TO 20 KT. SEAS 3 TO 5 FT GULF OF VENEZUELA,
AND 6 TO 8 FT ELSEWHERE.
WED NIGHT
E WINDS 15 TO 25 KT GULF OF VENEZUELA, AND E 10 TO
20 KT ELSEWHERE. SEAS 3 TO 5 FT GULF OF VENEZUELA, AND 6 TO 8 FT
ELSEWHERE.
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 5 TO 7 FT.
SAT 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.
TODAY
E WINDS 10 TO 15 KT. SEAS 5 TO 7 FT.
TONIGHT
E WINDS 10 TO 15 KT. SEAS 5 TO 7 FT.
WED
E WINDS 10 TO 15 KT. SEAS 4 TO 6 FT.
WED NIGHT
E WINDS 10 TO 15 KT. SEAS 4 TO 5 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 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 5 FT.
SAT NIGHT
E WINDS 10 TO 15 KT. SEAS 4 TO 5 FT.
OFFSHORE WINDWARD ISLANDS AND ADJACENT ATLC WATERS FROM 07N TO
15N W OF 55W
OVERNIGHT
E WINDS 10 TO 15 KT. SEAS 5 TO 7 FT.
TODAY
E WINDS 10 TO 15 KT. SEAS 4 TO 6 FT.
TONIGHT
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 5 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 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 3 TO 5 FT.
SAT NIGHT
E WINDS 10 TO 15 KT. SEAS 3 TO 5 FT.
SYNOPSIS FOR THE THE SW N ATLANTIC INCLUDING THE BAHAMAS
SYNOPSIS
THE BERMUDA HIGH IS EXPECTED TO MAINTAIN A RIDGE W
TO E ALONG ABOUT 30N THROUGH WED, THEN BEGIN TO DRIFT EASTWARD
AND WEAKEN MODESTLY THROUGH LATE WEEK. MODERATE TO FRESH E TO SE
WINDS AND MODERATE SEAS WILL PREVAIL S OF 25N THROUGH THU. FRESH
TO LOCALLY STRONG E WINDS WILL PULSE FROM LATE AFTERNOON INTO THE
OVERNIGHT HOURS N OF HISPANIOLA THROUGH THE END OF THE WEEK.
GENTLE TO MODERATE WINDS AND SLIGHT TO MODERATE SEAS ARE EXPECTED
ELSEWHERE. A WEAK COLD FRONT IS FORECAST TO MOVE OFF THE SE U.S.
COAST AND INTO THE NW ZONES EARLY FRI, THEN STALL THERE THROUGH
SAT. LOW PRESSURE MAY FORM ALONG THE FRONT DURING THIS TIME.
ATLC WATERS FROM 27N TO 31N W OF 77W
OVERNIGHT
S WINDS 10 TO 15 KT. SEAS 3 TO 4 FT.
TODAY
S WINDS 10 KT. SEAS 3 TO 4 FT.
TONIGHT
S WINDS 10 TO 15 KT. SEAS 3 TO 4 FT.
WED
SW WINDS 10 TO 15 KT. SEAS 3 TO 5 FT.
WED NIGHT
SW WINDS 10 TO 20 KT. SEAS 3 TO 5 FT.
THU
SW WINDS 10 TO 15 KT. SEAS 3 TO 5 FT.
THU NIGHT
SW WINDS 10 TO 15 KT. SEAS 3 TO 5 FT.
FRI
S WINDS LESS THAN 10 KT. SEAS 3 TO 4 FT.
FRI NIGHT
SE WINDS LESS THAN 10 KT. SEAS 3 TO 4 FT.
SAT
SE WINDS LESS THAN 10 KT, SHIFTING TO E IN THE AFTERNOON.
SEAS 3 TO 4 FT.
SAT NIGHT
SE WINDS 10 TO 15 KT, DIMINISHING TO LESS THAN
10 KT AFTER MIDNIGHT. SEAS 3 TO 4 FT.
ATLC WATERS FROM 27N TO 31N BETWEEN 65W AND 77W
OVERNIGHT
S WINDS LESS THAN 10 KT. SEAS 3 TO 4 FT.
TODAY
SE WINDS LESS THAN 10 KT. SEAS 3 TO 4 FT.
TONIGHT
S WINDS 10 TO 15 KT W OF 70W, AND SE LESS THAN 10 KT
ELSEWHERE. SEAS 3 TO 4 FT.
WED
S WINDS 10 TO 15 KT. SEAS 3 TO 5 FT.
WED NIGHT
S WINDS 10 TO 15 KT. SEAS 3 TO 5 FT.
THU
S WINDS 10 TO 15 KT. SEAS 4 TO 6 FT.
THU NIGHT
S WINDS 10 TO 15 KT. SEAS 4 TO 6 FT.
FRI
S WINDS 10 KT. SEAS 4 TO 5 FT.
FRI NIGHT
S WINDS LESS THAN 10 KT. SEAS 3 TO 5 FT.
SAT
S WINDS LESS THAN 10 KT. SEAS 3 TO 4 FT.
SAT NIGHT
S WINDS LESS THAN 10 KT. SEAS 3 TO 4 FT.
BAHAMAS N OF 22N
OVERNIGHT
SE WINDS 10 TO 15 KT. SEAS 3 TO 4 FT.
TODAY
SE WINDS 10 TO 15 KT. SEAS 3 TO 4 FT.
TONIGHT
SE WINDS 10 TO 15 KT. SEAS 3 TO 4 FT.
WED
SE WINDS 10 TO 15 KT. SEAS 3 TO 4 FT.
WED NIGHT
SE WINDS 10 TO 15 KT. SEAS 3 TO 4 FT.
THU
SE WINDS 10 TO 15 KT, DIMINISHING TO LESS THAN 10 KT IN
THE AFTERNOON. SEAS 3 TO 4 FT.
THU NIGHT
SE WINDS LESS THAN 10 KT. SEAS 3 FT.
FRI
SE WINDS LESS THAN 10 KT. SEAS 3 FT.
FRI NIGHT
SE WINDS LESS THAN 10 KT. SEAS 3 FT IN THE EVENING,
SUBSIDING TO 2 FT OR LESS.
SAT
S WINDS LESS THAN 10 KT. SEAS 3 FT.
SAT NIGHT
SE 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 4 TO 6 FT.
TODAY
E WINDS 10 TO 15 KT. SEAS 4 TO 6 FT.
TONIGHT
E WINDS 10 TO 15 KT. SEAS 4 TO 6 FT.
WED
SE WINDS 10 TO 15 KT. SEAS 4 TO 6 FT.
WED NIGHT
SE WINDS 10 TO 15 KT. SEAS 4 TO 6 FT.
THU
SE WINDS 10 TO 15 KT. SEAS 4 TO 6 FT.
THU NIGHT
SE WINDS 10 KT. SEAS 4 TO 5 FT.
FRI
SE WINDS 10 KT. SEAS 4 TO 5 FT.
FRI NIGHT
SE WINDS LESS THAN 10 KT. SEAS 3 TO 4 FT.
SAT
SE WINDS 10 KT. SEAS 3 TO 4 FT.
SAT 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.
TODAY
E WINDS 10 TO 15 KT. SEAS 4 TO 6 FT.
TONIGHT
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 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 3 TO 5 FT.
FRI
SE WINDS 10 TO 15 KT, DIMINISHING TO LESS THAN 10 KT IN
THE AFTERNOON. SEAS 3 TO 5 FT.
FRI NIGHT
E WINDS 10 TO 15 KT. SEAS 3 TO 4 FT.
SAT
SE WINDS 10 TO 15 KT. SEAS 3 TO 4 FT.
SAT NIGHT
E WINDS 10 TO 15 KT. SEAS 3 TO 4 FT.
ATLC WATERS FROM 19N TO 22N BETWEEN 55W AND 65W
OVERNIGHT
E WINDS 15 TO 20 KT. SEAS 5 TO 7 FT.
TODAY
E WINDS 10 TO 20 KT. SEAS 6 TO 7 FT.
TONIGHT
E WINDS 15 KT. SEAS 6 TO 7 FT.
WED
E WINDS 10 TO 15 KT. SEAS 6 TO 7 FT.
WED NIGHT
E WINDS 10 TO 15 KT. SEAS 5 TO 6 FT.
THU
E WINDS 10 TO 15 KT. SEAS 5 TO 6 FT.
THU NIGHT
E WINDS 10 TO 15 KT. SEAS 4 TO 6 FT.
FRI
E WINDS 10 TO 15 KT. SEAS 4 TO 6 FT.
FRI NIGHT
E WINDS 10 KT. SEAS 4 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 5 FT.
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