858
FZNT31 KNHC 031947
OFFN20
MARINE WEATHER HF VOICE BROADCAST
NWS NATIONAL HURRICANE CENTER MIAMI, FL
347 PM EDT THU JUL 3 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 BERMUDA HIGH AND
LOWER PRESSURE ACROSS NW COLOMBIA AND THE SW CARIBBEAN WILL
SUPPORT PULSING FRESH TO STRONG TRADES AND ROUGH SEAS ACROSS THE
SOUTH-CENTRAL BASIN THROUGH THE FORECAST PERIOD.
NW CARIBBEAN W OF 85W
TONIGHT
E WINDS LESS THAN 10 KT. SEAS 3 TO 4 FT.
FRI
E WINDS LESS THAN 10 KT. SEAS 3 FT.
FRI NIGHT
E WINDS LESS THAN 10 KT, INCREASING TO 10 TO 15 KT
AFTER MIDNIGHT. SEAS 3 FT.
SAT
SE WINDS 10 TO 15 KT, DIMINISHING TO LESS THAN 10 KT IN
THE AFTERNOON. SEAS 3 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 3 TO 5 FT.
MON
E WINDS 10 TO 20 KT. SEAS 3 TO 5 FT.
MON NIGHT
E WINDS 10 TO 20 KT. SEAS 4 TO 6 FT.
TUE
E WINDS 10 TO 15 KT. SEAS 4 TO 6 FT.
TUE NIGHT
E WINDS 10 TO 15 KT. SEAS 3 TO 5 FT.
CARIBBEAN N OF 15N BETWEEN 72W AND 85W
TONIGHT
E WINDS 10 TO 20 KT S OF 18N, AND SE LESS THAN 10 KT
ELSEWHERE. SEAS 4 TO 6 FT S OF 18N, AND 3 TO 4 FT ELSEWHERE.
FRI
E WINDS 10 TO 20 KT S OF 18N, AND SE LESS THAN 10 KT
ELSEWHERE. SEAS 4 TO 6 FT S OF 18N, AND 3 FT ELSEWHERE.
FRI 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.
SAT
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.
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.
MON
E WINDS 10 TO 20 KT. SEAS 4 TO 6 FT.
MON NIGHT
E WINDS 10 TO 20 KT. SEAS 4 TO 6 FT.
TUE
E WINDS 10 TO 20 KT. SEAS 4 TO 6 FT.
TUE NIGHT
E WINDS 10 TO 20 KT. SEAS 4 TO 6 FT.
CARIBBEAN FROM 11N TO 15N W OF 72W
TONIGHT
E WINDS 15 TO 25 KT WITHIN 90 NM OF COAST OF
COLOMBIA, AND E 10 TO 20 KT ELSEWHERE. SEAS 6 TO 8 FT.
FRI
E WINDS 10 TO 20 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 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 5 TO 7 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 6 TO 8 FT.
TUE
E WINDS 10 TO 20 KT. SEAS 6 TO 9 FT.
TUE NIGHT
NE WINDS 10 TO 20 KT. SEAS 6 TO 9 FT.
SW CARIBBEAN S OF 11N
TONIGHT
N WINDS LESS THAN 10 KT. SEAS 4 TO 6 FT.
FRI
N WINDS LESS THAN 10 KT, SHIFTING TO SW IN THE AFTERNOON.
SEAS 4 TO 6 FT.
FRI NIGHT
W WINDS LESS THAN 10 KT. SEAS 4 TO 6 FT.
SAT
VARIABLE WINDS LESS THAN 10 KT. SEAS 3 TO 5 FT.
SAT NIGHT
VARIABLE WINDS LESS THAN 10 KT. SEAS 3 TO 4 FT.
SUN
VARIABLE WINDS LESS THAN 10 KT, BECOMING SE LESS THAN
10 KT IN THE AFTERNOON. SEAS 3 TO 4 FT.
SUN NIGHT
E WINDS LESS THAN 10 KT IN THE EVENING, BECOMING
VARIABLE WINDS LESS THAN 10 KT. SEAS 3 TO 4 FT.
MON
NE WINDS LESS THAN 10 KT. SEAS 4 TO 6 FT.
MON NIGHT
NE WINDS 10 TO 15 KT. SEAS 4 TO 6 FT.
TUE
NE WINDS 10 TO 15 KT. SEAS 6 TO 8 FT.
TUE NIGHT
NE WINDS 10 TO 15 KT. SEAS 6 TO 9 FT.
CARIBBEAN BETWEEN 64W AND 72W
TONIGHT
E WINDS 15 TO 25 KT GULF OF VENEZUELA, AND E 10 TO
20 KT ELSEWHERE. 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 20 KT. SEAS 3 TO 4 FT GULF OF VENEZUELA,
AND 4 TO 6 FT ELSEWHERE.
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.
MON
E WINDS 10 TO 20 KT. SEAS 4 TO 6 FT.
MON NIGHT
E WINDS 10 TO 20 KT. SEAS 4 TO 6 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.
OFFSHORE LEEWARD ISLANDS AND ADJACENT ATLC WATERS FROM 15N TO
19N W OF 55W
TONIGHT
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 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 3 TO 5 FT.
MON
E WINDS 10 TO 20 KT. SEAS 4 TO 6 FT.
MON NIGHT
E WINDS 10 TO 15 KT. SEAS 4 TO 6 FT.
TUE
E WINDS 10 TO 15 KT. SEAS 4 TO 6 FT.
TUE NIGHT
E WINDS 10 TO 15 KT. SEAS 4 TO 6 FT.
OFFSHORE WINDWARD ISLANDS AND ADJACENT ATLC WATERS FROM 07N TO
15N W OF 55W
TONIGHT
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.
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.
MON
E WINDS 10 TO 15 KT. SEAS 3 TO 5 FT.
MON NIGHT
E WINDS 10 TO 15 KT. SEAS 3 TO 5 FT.
TUE
E WINDS 10 TO 15 KT. SEAS 3 TO 5 FT.
TUE NIGHT
E WINDS 10 TO 15 KT. SEAS 3 TO 5 FT.
SYNOPSIS FOR THE THE SW N ATLANTIC INCLUDING THE BAHAMAS
SYNOPSIS
AN AREA OF LOW PRESSURE IS FORECAST TO DEVELOP ALONG
A WEAKENING FRONTAL BOUNDARY NEAR FLORIDA OR THE ATLANTIC COAST
OF THE SOUTHEASTERN UNITED STATES ON FRIDAY OR SATURDAY.
ENVIRONMENTAL CONDITIONS APPEAR ONLY MARGINALLY CONDUCIVE FOR
SOME SLOW DEVELOPMENT, BUT A TROPICAL OR SUBTROPICAL DEPRESSION
COULD FORM IN THIS REGION OVER THE WEEKEND OR EARLY NEXT WEEK
WHILE THE SYSTEM DRIFTS NORTHWARD OR NORTHEASTWARD. REGARDLESS
OF DEVELOPMENT, HEAVY RAINFALL IS POSSIBLE ACROSS PORTIONS OF
THE SOUTHEAST U.S., PARTICULARLY ACROSS THE WEST-CENTRAL FLORIDA
COAST. THERE IS A LOW CHANCE OF TROPICAL FORMATION WITHIN THE
NEXT TWO DAYS, AND A MEDIUM CHANCE THROUGH THE NEXT 7 DAYS.
ATLC WATERS FROM 27N TO 31N W OF 77W
TONIGHT
S WINDS 10 TO 20 KT. SEAS 4 TO 6 FT.
FRI
S WINDS 10 TO 20 KT. SEAS 4 TO 6 FT.
FRI NIGHT
S WINDS 10 TO 20 KT. SEAS 4 TO 6 FT.
SAT
S WINDS 10 TO 15 KT. SEAS 4 TO 6 FT.
SAT NIGHT
S WINDS 10 TO 20 KT. SEAS 4 TO 6 FT.
SUN
SW WINDS 10 TO 20 KT. SEAS 4 TO 6 FT.
SUN NIGHT
SW WINDS 10 TO 15 KT. SEAS 4 TO 6 FT.
MON
SW WINDS 10 TO 15 KT. SEAS 3 TO 5 FT.
MON NIGHT
SW WINDS LESS THAN 10 KT. SEAS 3 TO 4 FT.
TUE
SW WINDS LESS THAN 10 KT. SEAS 3 FT.
TUE NIGHT
SW WINDS LESS THAN 10 KT, INCREASING TO 10 TO 15 KT
AFTER MIDNIGHT. SEAS 3 FT.
ATLC WATERS FROM 27N TO 31N BETWEEN 65W AND 77W
TONIGHT
S WINDS 10 TO 15 KT. SEAS 3 TO 5 FT.
FRI
S WINDS LESS THAN 10 KT. SEAS 3 TO 5 FT.
FRI NIGHT
W OF 70W, S WINDS LESS THAN 10 KT, SHIFTING TO SE
AFTER MIDNIGHT. ELSEWHERE, SE WINDS LESS THAN 10 KT IN THE
EVENING, BECOMING VARIABLE WINDS LESS THAN 10 KT. SEAS 3 TO
5 FT.
SAT
SE WINDS 10 TO 15 KT. SEAS 4 TO 6 FT.
SAT NIGHT
S WINDS LESS THAN 10 KT, SHIFTING TO SE AFTER
MIDNIGHT. SEAS 4 TO 6 FT.
SUN
S WINDS 10 TO 15 KT. SEAS 4 TO 6 FT.
SUN NIGHT
S WINDS 10 TO 15 KT. SEAS 4 TO 6 FT.
MON
S WINDS 10 TO 15 KT. SEAS 3 TO 5 FT.
MON NIGHT
S WINDS LESS THAN 10 KT. SEAS 3 TO 4 FT.
TUE
S WINDS 10 TO 15 KT. SEAS 3 TO 4 FT.
TUE NIGHT
S WINDS 10 TO 15 KT. SEAS 3 TO 4 FT.
BAHAMAS N OF 22N
TONIGHT
SE WINDS 10 TO 15 KT. SEAS 3 TO 4 FT.
FRI
SE WINDS 10 TO 15 KT. SEAS 3 FT.
FRI NIGHT
E WINDS LESS THAN 10 KT, SHIFTING TO SE AFTER
MIDNIGHT. SEAS 2 FT OR LESS.
SAT
S WINDS 10 TO 15 KT, DIMINISHING TO LESS THAN 10 KT IN
THE AFTERNOON. SEAS 3 FT IN THE MORNING, SUBSIDING TO 2 FT OR
LESS.
SAT NIGHT
SE WINDS LESS THAN 10 KT, INCREASING TO 10 TO 15 KT
AFTER MIDNIGHT. SEAS 2 FT OR LESS.
SUN
SE WINDS 10 TO 15 KT, DIMINISHING TO LESS THAN 10 KT IN
THE AFTERNOON. SEAS 2 FT OR LESS.
SUN NIGHT
SE WINDS LESS THAN 10 KT, INCREASING TO 10 TO 15 KT
AFTER MIDNIGHT. SEAS 2 FT OR LESS.
MON
SE WINDS 10 TO 15 KT. SEAS 2 FT OR LESS.
MON NIGHT
E WINDS 10 TO 15 KT. SEAS 2 FT OR LESS.
TUE
E WINDS 10 TO 15 KT. SEAS 2 FT OR LESS.
TUE NIGHT
E WINDS 10 TO 15 KT. SEAS 2 FT OR LESS, BUILDING TO
3 FT AFTER MIDNIGHT.
ATLC WATERS FROM 22N TO 27N BETWEEN 65W AND THE BAHAMAS
TONIGHT
SE WINDS 10 TO 15 KT. SEAS 4 TO 5 FT.
FRI
SE WINDS 10 TO 15 KT. SEAS 4 TO 5 FT.
FRI NIGHT
SE WINDS 10 TO 15 KT. SEAS 3 TO 4 FT.
SAT
SE WINDS 10 TO 15 KT. SEAS 3 TO 4 FT.
SAT NIGHT
SE WINDS 10 TO 15 KT. SEAS 3 TO 4 FT.
SUN
SE WINDS 10 TO 15 KT. SEAS 3 TO 4 FT.
SUN NIGHT
SE WINDS 10 KT. SEAS 3 TO 4 FT.
MON
SE WINDS 10 TO 15 KT. SEAS 3 TO 4 FT.
MON NIGHT
SE WINDS 10 TO 15 KT. SEAS 3 TO 4 FT.
TUE
SE WINDS 10 TO 15 KT. SEAS 3 TO 5 FT.
TUE NIGHT
SE WINDS 10 TO 15 KT. SEAS 3 TO 5 FT.
ATLC WATERS S OF 22N W OF 65W
TONIGHT
E WINDS 10 TO 15 KT. SEAS 3 TO 5 FT.
FRI
SE WINDS 10 TO 15 KT. 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 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 4 FT.
MON
E WINDS 10 TO 15 KT. SEAS 3 TO 5 FT.
MON NIGHT
E WINDS 10 TO 20 KT. SEAS 4 TO 6 FT.
TUE
E WINDS 10 TO 20 KT. SEAS 4 TO 6 FT.
TUE NIGHT
E WINDS 10 TO 20 KT. SEAS 4 TO 6 FT.
ATLC WATERS FROM 19N TO 22N BETWEEN 55W AND 65W
TONIGHT
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 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.
SUN
E WINDS 10 TO 15 KT. SEAS 4 TO 5 FT.
SUN NIGHT
E WINDS 10 TO 15 KT. SEAS 4 TO 5 FT.
MON
E WINDS 10 TO 15 KT. SEAS 4 TO 5 FT.
MON NIGHT
E WINDS 10 TO 15 KT. SEAS 5 TO 6 FT.
TUE
E WINDS 10 TO 15 KT. SEAS 5 TO 6 FT.
TUE NIGHT
E WINDS 10 TO 15 KT. SEAS 5 TO 6 FT.
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