947
FZNT31 KNHC 030816
OFFN20
MARINE WEATHER HF VOICE BROADCAST
NWS NATIONAL HURRICANE CENTER MIAMI, FL
416 AM 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 WEEKEND.
NW CARIBBEAN W OF 85W
TODAY
E WINDS 10 TO 15 KT, DIMINISHING TO LESS THAN 10 KT IN
THE AFTERNOON. SEAS 3 TO 5 FT.
TONIGHT
E WINDS LESS THAN 10 KT, INCREASING TO 10 TO 15 KT
AFTER MIDNIGHT. SEAS 3 FT.
FRI
E WINDS LESS THAN 10 KT. SEAS 3 FT.
FRI NIGHT
E WINDS 10 TO 15 KT. SEAS 3 FT.
SAT
E WINDS LESS THAN 10 KT. 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.
CARIBBEAN N OF 15N BETWEEN 72W AND 85W
TODAY
E WINDS 10 TO 20 KT S OF 18N, AND E LESS THAN 10 KT
ELSEWHERE. SEAS 4 TO 6 FT.
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 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 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 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 15 KT. SEAS 4 TO 6 FT.
CARIBBEAN FROM 11N TO 15N W OF 72W
TODAY
E WINDS 20 TO 30 KT WITHIN 90 NM OF COAST OF COLOMBIA,
AND E 10 TO 20 KT ELSEWHERE. SEAS 7 TO 10 FT.
TONIGHT
E WINDS 15 TO 25 KT WITHIN 90 NM OF COAST OF
COLOMBIA, AND E 10 TO 20 KT ELSEWHERE. SEAS 6 TO 9 FT.
FRI
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 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 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 5 TO 7 FT.
MON NIGHT
E WINDS 10 TO 20 KT. SEAS 6 TO 9 FT.
SW CARIBBEAN S OF 11N
TODAY
NE WINDS LESS THAN 10 KT. SEAS 5 TO 7 FT.
TONIGHT
VARIABLE WINDS LESS THAN 10 KT, BECOMING N LESS THAN
10 KT AFTER MIDNIGHT. SEAS 4 TO 6 FT.
FRI
E WINDS LESS THAN 10 KT IN THE MORNING, BECOMING VARIABLE
WINDS LESS THAN 10 KT. SEAS 3 TO 5 FT.
FRI NIGHT
W WINDS LESS THAN 10 KT IN THE EVENING, BECOMING
VARIABLE WINDS LESS THAN 10 KT. SEAS 3 TO 5 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. SEAS 3 TO 4 FT.
SUN NIGHT
VARIABLE WINDS LESS THAN 10 KT. SEAS 3 TO 4 FT.
MON
VARIABLE WINDS LESS THAN 10 KT, BECOMING NE LESS THAN
10 KT IN THE AFTERNOON. SEAS 3 TO 5 FT.
MON NIGHT
NE WINDS 10 TO 15 KT. SEAS 4 TO 6 FT.
CARIBBEAN BETWEEN 64W AND 72W
TODAY
E WINDS 10 TO 20 KT. SEAS 3 TO 4 FT GULF OF VENEZUELA,
AND 5 TO 7 FT ELSEWHERE.
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 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.
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.
OFFSHORE LEEWARD ISLANDS AND ADJACENT ATLC WATERS FROM 15N TO
19N W OF 55W
TODAY
E WINDS 10 TO 15 KT. SEAS 4 TO 6 FT.
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 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 4 TO 5 FT.
MON 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
TODAY
E WINDS 10 TO 15 KT. SEAS 4 TO 6 FT.
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, DIMINISHING TO LESS THAN 10 KT IN
THE AFTERNOON. 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.
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 BY EARLY THIS WEEKEND.
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, THUNDERSTORMS AND HEAVY RAINFALL ARE POSSIBLE
ACROSS PORTIONS OF FLORIDA AND ADJACENT WATERS THROUGH THE
WEEKEND. 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
TODAY
SW WINDS 10 TO 15 KT. SEAS 3 TO 5 FT.
TONIGHT
S WINDS 10 TO 20 KT. SEAS 3 TO 5 FT.
FRI
S WINDS 10 TO 15 KT. SEAS 3 TO 5 FT.
FRI NIGHT
S WINDS 10 TO 15 KT. SEAS 3 TO 5 FT.
SAT
S WINDS 10 TO 15 KT. SEAS 3 TO 5 FT.
SAT NIGHT
S WINDS 10 TO 20 KT. SEAS 3 TO 5 FT.
SUN
SW WINDS 10 TO 20 KT. SEAS 3 TO 5 FT.
SUN NIGHT
SW WINDS 10 TO 20 KT. SEAS 3 TO 5 FT.
MON
SW WINDS 10 TO 20 KT. SEAS 3 TO 5 FT.
MON NIGHT
SW WINDS 10 TO 15 KT. SEAS 3 TO 4 FT.
ATLC WATERS FROM 27N TO 31N BETWEEN 65W AND 77W
TODAY
S WINDS 10 TO 15 KT. SEAS 3 TO 5 FT.
TONIGHT
S WINDS 10 TO 15 KT. SEAS 3 TO 5 FT.
FRI
S WINDS 10 TO 15 KT. SEAS 3 TO 5 FT.
FRI NIGHT
W OF 70W, S WINDS 10 KT. ELSEWHERE, S WINDS 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 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 5 FT.
SUN NIGHT
SE WINDS LESS THAN 10 KT. SEAS 3 TO 5 FT.
MON
S WINDS LESS THAN 10 KT. SEAS 3 TO 4 FT.
MON NIGHT
SE WINDS LESS THAN 10 KT. SEAS 3 TO 4 FT.
BAHAMAS N OF 22N
TODAY
SE WINDS 10 TO 15 KT. SEAS 3 FT.
TONIGHT
SE WINDS LESS THAN 10 KT, INCREASING TO 10 TO 15 KT
AFTER MIDNIGHT. SEAS 3 FT.
FRI
SE WINDS 10 TO 15 KT, SHIFTING TO S IN THE AFTERNOON.
SEAS 3 FT.
FRI NIGHT
SE WINDS LESS THAN 10 KT. SEAS 2 FT OR LESS.
SAT
S WINDS 10 TO 15 KT, DIMINISHING TO LESS THAN 10 KT IN
THE AFTERNOON. SEAS 3 FT.
SAT NIGHT
SE WINDS LESS THAN 10 KT. SEAS 2 FT OR LESS.
SUN
SE WINDS LESS THAN 10 KT. SEAS 2 FT OR LESS.
SUN NIGHT
SE WINDS LESS THAN 10 KT. 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.
ATLC WATERS FROM 22N TO 27N BETWEEN 65W AND THE BAHAMAS
TODAY
SE WINDS 10 TO 15 KT. SEAS 4 TO 5 FT.
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 KT. SEAS 3 TO 4 FT.
SAT
SE WINDS 10 TO 15 KT. SEAS 3 TO 4 FT.
SAT NIGHT
SE WINDS 10 KT. SEAS 3 TO 4 FT.
SUN
SE WINDS LESS THAN 10 KT. SEAS 3 TO 4 FT.
SUN NIGHT
E WINDS LESS THAN 10 KT. SEAS 3 TO 4 FT.
MON
SE WINDS 10 KT. SEAS 3 TO 4 FT.
MON NIGHT
E WINDS 10 TO 15 KT. SEAS 3 TO 4 FT.
ATLC WATERS S OF 22N W OF 65W
TODAY
E WINDS 10 TO 15 KT. SEAS 4 TO 6 FT.
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 4 FT.
SUN
E WINDS 10 TO 15 KT. SEAS 3 TO 4 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 15 KT. SEAS 3 TO 5 FT.
ATLC WATERS FROM 19N TO 22N BETWEEN 55W AND 65W
TODAY
E WINDS 10 TO 15 KT. SEAS 5 TO 6 FT.
TONIGHT
E WINDS 10 TO 15 KT. SEAS 4 TO 6 FT.
FRI
E WINDS 10 TO 15 KT. SEAS 4 TO 5 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 15 KT. SEAS 4 TO 5 FT.
MON NIGHT
E WINDS 15 KT. SEAS 5 TO 6 FT.
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