595
FZNT31 KNHC 092013
OFFN20
MARINE WEATHER HF VOICE BROADCAST
NWS NATIONAL HURRICANE CENTER MIAMI, FL
313 PM EST TUE DEC 9 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
MODERATE TO LOCALLY FRESH E WINDS AND MODERATE SEAS
WILL PREVAIL OVER THE CENTRAL AND EASTERN CARIBBEAN TODAY.
WIDESPREAD FRESH TRADES AND ROUGH SEAS ARE EXPECTED TO DEVELOP
OVER THIS REGION ON WED AS A TIGHTENING PRESSURE GRADIENT
DEVELOPS BETWEEN THE COLOMBIAN LOW, A STALLED FRONT IN THE
NORTHWEST BASIN AND BUILDING HIGH PRESSURE IN THE CENTRAL
ATLANTIC. WINDS WILL PULSE TO STRONG SPEEDS OFFSHORE OF NORTHERN
COLOMBIA AND IN THE GULF OF VENEZUELA NIGHTLY THROUGH THIS
WEEKEND, AND WINDS MAY REACH NEAR-GALE FORCE AT TIMES. ELSEWHERE,
FRESH TO LOCALLY STRONG TRADES WILL PREVAIL OVER THE ATLANTIC
WATERS AND THROUGH THE PASSAGES INTO THIS WEEKEND. A NEW E SWELL
WILL SUPPORT ROUGH SEAS OVER THIS REGION WED THROUGH THIS
WEEKEND.
NW CARIBBEAN W OF 85W
TONIGHT
VARIABLE WINDS LESS THAN 10 KT. SEAS 3 TO 5 FT.
WED
VARIABLE WINDS LESS THAN 10 KT. SEAS 3 TO 5 FT.
WED NIGHT
VARIABLE WINDS LESS THAN 10 KT. SEAS 3 TO 4 FT.
THU
NE WINDS LESS THAN 10 KT, INCREASING TO 10 TO 15 KT IN
THE AFTERNOON. SEAS 3 TO 4 FT.
THU NIGHT
NE WINDS 10 TO 15 KT. SEAS 3 TO 5 FT.
FRI
E WINDS 10 TO 15 KT, DIMINISHING TO LESS THAN 10 KT IN
THE AFTERNOON. SEAS 3 TO 5 FT.
FRI NIGHT
E WINDS LESS THAN 10 KT. SEAS 3 TO 5 FT.
SAT
E WINDS LESS THAN 10 KT. SEAS 3 TO 4 FT.
SAT NIGHT
E WINDS 10 TO 15 KT, DIMINISHING TO LESS THAN 10 KT
AFTER MIDNIGHT. SEAS 3 TO 5 FT.
SUN
NE WINDS LESS THAN 10 KT. SEAS 3 TO 4 FT.
SUN NIGHT
NE WINDS LESS THAN 10 KT. SEAS 3 TO 4 FT.
CARIBBEAN N OF 15N BETWEEN 72W AND 85W
TONIGHT
E WINDS 10 TO 15 KT S OF 18N, AND E LESS THAN 10 KT
ELSEWHERE. SEAS 3 TO 5 FT S OF 18N, AND 2 FT OR LESS ELSEWHERE.
WED
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 2 FT OR LESS ELSEWHERE.
WED NIGHT
S OF 18N, E WINDS 10 TO 20 KT. ELSEWHERE, VARIABLE
WINDS LESS THAN 10 KT, BECOMING NE LESS THAN 10 KT AFTER
MIDNIGHT. SEAS 5 TO 7 FT S OF 18N, AND 2 FT OR LESS ELSEWHERE.
THU
E WINDS 10 TO 20 KT S OF 18N, AND NE LESS THAN 10 KT
ELSEWHERE. SEAS 5 TO 7 FT S OF 18N, AND 2 FT OR LESS ELSEWHERE.
THU NIGHT
NE 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 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
NE WINDS 10 TO 15 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 NE 10 TO 20 KT ELSEWHERE. SEAS 5 TO 7 FT.
WED
E WINDS 15 TO 25 KT. SEAS 5 TO 7 FT.
WED NIGHT
E WINDS 20 TO 30 KT WITHIN 90 NM OF COAST OF
COLOMBIA, AND NE 10 TO 20 KT ELSEWHERE. SEAS 6 TO 9 FT.
THU
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.
THU NIGHT
NE WINDS 15 TO 25 KT. SEAS 6 TO 9 FT.
FRI
E WINDS 15 TO 25 KT. SEAS 7 TO 10 FT.
FRI NIGHT
E WINDS 15 TO 25 KT. SEAS 6 TO 9 FT.
SAT
E WINDS 15 TO 25 KT. SEAS 7 TO 10 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
NE WINDS 10 TO 20 KT. SEAS 6 TO 8 FT.
SW CARIBBEAN S OF 11N
TONIGHT
N WINDS LESS THAN 10 KT, INCREASING TO 10 TO 15 KT
AFTER MIDNIGHT. SEAS 4 TO 6 FT.
WED
NE WINDS 10 TO 15 KT, DIMINISHING TO LESS THAN 10 KT IN
THE AFTERNOON. SEAS 4 TO 6 FT.
WED NIGHT
NE WINDS 10 TO 20 KT. SEAS 5 TO 7 FT.
THU
NE WINDS 10 TO 20 KT. SEAS 6 TO 9 FT.
THU NIGHT
NE WINDS 10 TO 15 KT. SEAS 6 TO 8 FT.
FRI
NE WINDS 10 TO 15 KT. SEAS 6 TO 9 FT.
FRI NIGHT
NE WINDS 10 TO 15 KT. SEAS 6 TO 8 FT.
SAT
E WINDS 10 TO 15 KT, SHIFTING TO NE IN THE AFTERNOON.
SEAS 6 TO 8 FT.
SAT NIGHT
NE WINDS 10 TO 15 KT. SEAS 6 TO 8 FT.
SUN
NE WINDS 10 TO 15 KT, SHIFTING TO N IN THE AFTERNOON.
SEAS 6 TO 8 FT.
SUN NIGHT
N WINDS LESS THAN 10 KT, INCREASING TO 10 TO 15 KT
AFTER MIDNIGHT. SEAS 5 TO 7 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.
WED
E WINDS 15 TO 25 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 15 TO 25 KT. SEAS 3 TO 5 FT GULF OF VENEZUELA,
AND 5 TO 7 FT ELSEWHERE.
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 15 TO 25 KT. SEAS 6 TO 8 FT.
SAT
E WINDS 10 TO 20 KT. SEAS 6 TO 8 FT.
SAT NIGHT
E WINDS 15 TO 25 KT. SEAS 6 TO 8 FT.
SUN
E WINDS 10 TO 20 KT. SEAS 6 TO 9 FT.
SUN NIGHT
E WINDS 15 TO 25 KT. SEAS 6 TO 8 FT.
OFFSHORE LEEWARD ISLANDS AND ADJACENT ATLC WATERS FROM 15N TO
19N W OF 55W
TONIGHT
E WINDS 10 TO 20 KT. SEAS 6 TO 8 FT.
WED
E WINDS 10 TO 20 KT. SEAS 6 TO 8 FT.
WED NIGHT
E WINDS 10 TO 20 KT. SEAS 6 TO 9 FT.
THU
E WINDS 10 TO 20 KT. SEAS 7 TO 10 FT.
THU NIGHT
E WINDS 10 TO 20 KT. SEAS 7 TO 10 FT.
FRI
E WINDS 10 TO 20 KT. SEAS 7 TO 10 FT.
FRI NIGHT
E WINDS 10 TO 20 KT. SEAS 7 TO 10 FT.
SAT
E WINDS 10 TO 20 KT. SEAS 8 TO 11 FT.
SAT NIGHT
E WINDS 10 TO 20 KT. SEAS 8 TO 11 FT.
SUN
E WINDS 10 TO 20 KT. SEAS 8 TO 11 FT.
SUN NIGHT
E WINDS 10 TO 20 KT. SEAS 7 TO 10 FT.
OFFSHORE WINDWARD ISLANDS AND ADJACENT ATLC WATERS FROM 07N TO
15N W OF 55W
TONIGHT
E WINDS 10 TO 20 KT. SEAS 6 TO 8 FT.
WED
E WINDS 10 TO 20 KT. SEAS 6 TO 8 FT.
WED NIGHT
E WINDS 10 TO 20 KT. SEAS 7 TO 10 FT.
THU
E WINDS 10 TO 20 KT. SEAS 6 TO 9 FT.
THU NIGHT
E WINDS 10 TO 20 KT. SEAS 7 TO 10 FT.
FRI
E WINDS 10 TO 20 KT. SEAS 7 TO 10 FT.
FRI NIGHT
E WINDS 10 TO 20 KT. SEAS 8 TO 11 FT.
SAT
E WINDS 10 TO 20 KT. SEAS 8 TO 11 FT.
SAT NIGHT
E WINDS 10 TO 20 KT. SEAS 8 TO 11 FT.
SUN
E WINDS 10 TO 20 KT. SEAS 8 TO 11 FT.
SUN NIGHT
E WINDS 10 TO 20 KT. SEAS 7 TO 10 FT.
SYNOPSIS FOR THE THE SW N ATLANTIC INCLUDING THE BAHAMAS
SYNOPSIS
A COLD FRONT EXTENDING FROM SOUTHEAST OF BERMUDA
THROUGH THE CENTRAL BAHAMAS WILL PROGRESS EASTWARD THROUGH THE
CENTRAL ATLANTIC THIS WEEK. STRONG TO LOCALLY NEAR-GALE FORCE SW
WINDS AND ROUGH SEAS WILL OCCUR NORTH OF 28N AND EAST OF 60W
AHEAD OF THE COLD FRONT THROUGH LATE TONIGHT, WITH WIDESPREAD
FRESH TO STRONG W TO NW WINDS EXPECTED IN THE WAKE OF THE FRONT
NORTH OF 30N AND EAST OF 65W. WINDS WILL SUBSIDE FROM WEST TO
EAST TONIGHT INTO EARLY WED. NW SWELL ASSOCIATED WITH THIS FRONT
WILL EXPAND SOUTHEASTWARD OVER THE NORTHWESTERN TROPICAL ATLANTIC
THROUGH WED, SUPPORTING ROUGH SEAS NORTH OF 27N BY LATE TONIGHT,
AND NORTH OF 25N BY WED AFTERNOON. VERY ROUGH SEAS OVER 12 FT
WILL BE POSSIBLE NORTH OF 30N AND EAST OF 70W INTO WED AFTERNOON.
SEAS WILL SLOWLY SUBSIDE FROM WEST TO EAST, WEST OF 65W, INTO
EARLY THU. LOOKING AHEAD, FRESH TO STRONG SW WINDS AND ROUGH SEAS
WILL DEVELOP OFFSHORE OF NORTHERN FLORIDA BY WED EVENING, AHEAD
OF A COLD FRONT MOVING OVER THE SOUTHERN UNITED STATES. THE COLD
FRONT IS SLATED TO PUSH OFFSHORE EARLY THU, WITH FRESH TO STRONG
NW WINDS AND ROUGH SEAS EXPECTED IN THE WAKE OF THE FRONT.
ATLC WATERS FROM 27N TO 31N W OF 77W
TONIGHT
N WINDS LESS THAN 10 KT. SEAS 6 TO 8 FT.
WED
VARIABLE WINDS LESS THAN 10 KT, BECOMING SW 10 TO 20 KT
IN THE AFTERNOON. SEAS 6 TO 7 FT.
WED NIGHT
W WINDS 15 TO 25 KT. SEAS 6 TO 8 FT.
THU
NW WINDS 15 TO 25 KT. SEAS 7 TO 10 FT.
THU NIGHT
NW WINDS 10 TO 15 KT. SEAS 5 TO 7 FT.
FRI
N WINDS 10 KT IN THE MORNING, BECOMING VARIABLE WINDS
LESS THAN 10 KT. SEAS 3 TO 5 FT.
FRI NIGHT
SW WINDS LESS THAN 10 KT. SEAS 3 TO 4 FT.
SAT
SE WINDS LESS THAN 10 KT. SEAS 3 TO 4 FT.
SAT NIGHT
SE WINDS 10 KT. SEAS 3 FT.
SUN
S WINDS LESS THAN 10 KT, SHIFTING TO NW IN THE AFTERNOON.
SEAS 3 TO 4 FT.
SUN NIGHT
N WINDS 10 TO 20 KT. SEAS 5 TO 7 FT.
ATLC WATERS FROM 27N TO 31N BETWEEN 65W AND 77W
TONIGHT
E WINDS LESS THAN 10 KT. SEAS 8 TO 11 FT.
WED
W OF 70W, E WINDS LESS THAN 10 KT, SHIFTING TO S IN THE
AFTERNOON. ELSEWHERE, S WINDS 10 TO 15 KT. SEAS 7 TO 10 FT.
WED NIGHT
SW WINDS 10 TO 20 KT. SEAS 6 TO 8 FT.
THU
W WINDS 10 TO 20 KT. SEAS 7 TO 10 FT.
THU NIGHT
NW WINDS 10 TO 20 KT. SEAS 7 TO 10 FT.
FRI
NW WINDS LESS THAN 10 KT. SEAS 7 TO 10 FT.
FRI NIGHT
VARIABLE WINDS LESS THAN 10 KT, BECOMING S LESS
THAN 10 KT AFTER MIDNIGHT. SEAS 5 TO 7 FT.
SAT
E WINDS LESS THAN 10 KT. SEAS 5 TO 7 FT.
SAT NIGHT
E WINDS LESS THAN 10 KT, SHIFTING TO SE AFTER
MIDNIGHT. SEAS 5 TO 7 FT.
SUN
S WINDS LESS THAN 10 KT. SEAS 5 TO 7 FT.
SUN NIGHT
W WINDS 10 TO 15 KT. SEAS 6 TO 8 FT.
BAHAMAS N OF 22N
TONIGHT
S WINDS LESS THAN 10 KT. SEAS 3 TO 5 FT.
WED
SW WINDS LESS THAN 10 KT. SEAS 3 TO 5 FT.
WED NIGHT
VARIABLE WINDS LESS THAN 10 KT, BECOMING SW LESS
THAN 10 KT AFTER MIDNIGHT. SEAS 3 TO 5 FT.
THU
NW WINDS 10 TO 15 KT. SEAS 3 TO 5 FT.
THU NIGHT
N WINDS 10 TO 15 KT. SEAS 3 TO 4 FT.
FRI
NE 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 5 FT.
SUN
E WINDS LESS THAN 10 KT IN THE MORNING, BECOMING VARIABLE
WINDS LESS THAN 10 KT. SEAS 3 TO 5 FT.
SUN NIGHT
N WINDS LESS THAN 10 KT. SEAS 3 TO 4 FT.
ATLC WATERS FROM 22N TO 27N BETWEEN 65W AND THE BAHAMAS
TONIGHT
SE WINDS 10 TO 15 KT W OF 70W, AND SE LESS THAN 10 KT
ELSEWHERE. SEAS 5 TO 7 FT.
WED
W OF 70W, S WINDS 10 TO 15 KT, SHIFTING TO SW IN THE
AFTERNOON. ELSEWHERE, S WINDS 10 TO 15 KT. SEAS 6 TO 9 FT.
WED NIGHT
W OF 70W, S WINDS LESS THAN 10 KT, SHIFTING TO SW
AFTER MIDNIGHT. ELSEWHERE, S WINDS 10 TO 15 KT. SEAS 6 TO 8 FT.
THU
SW WINDS 10 TO 15 KT. SEAS 6 TO 8 FT.
THU NIGHT
W WINDS 10 TO 15 KT. SEAS 5 TO 7 FT.
FRI
NE WINDS LESS THAN 10 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 6 TO 8 FT.
SUN
SE WINDS 10 TO 15 KT. SEAS 6 TO 8 FT.
SUN NIGHT
SE WINDS 10 TO 15 KT, SHIFTING TO S AFTER MIDNIGHT.
SEAS 6 TO 8 FT.
ATLC WATERS S OF 22N W OF 65W
TONIGHT
SE WINDS LESS THAN 10 KT. SEAS 3 TO 5 FT.
WED
SE WINDS 10 TO 15 KT. SEAS 3 TO 5 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
E WINDS LESS THAN 10 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 5 TO 7 FT.
SAT
E WINDS 10 TO 15 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 9 FT.
SUN NIGHT
E WINDS 10 TO 15 KT, SHIFTING TO SE AFTER MIDNIGHT.
SEAS 5 TO 7 FT.
ATLC WATERS FROM 19N TO 22N BETWEEN 55W AND 65W
TONIGHT
E WINDS 10 TO 15 KT. SEAS 5 TO 7 FT.
WED
E WINDS 10 TO 15 KT. SEAS 6 TO 8 FT.
WED NIGHT
E WINDS 10 TO 20 KT. SEAS 6 TO 9 FT.
THU
SE WINDS 10 TO 20 KT. SEAS 7 TO 10 FT.
THU NIGHT
E WINDS 10 TO 20 KT. SEAS 8 TO 10 FT.
FRI
E WINDS 10 TO 20 KT. SEAS 7 TO 10 FT.
FRI NIGHT
E WINDS 10 TO 20 KT. SEAS 7 TO 10 FT.
SAT
E WINDS 15 TO 20 KT. SEAS 8 TO 10 FT.
SAT NIGHT
E WINDS 15 TO 20 KT. SEAS 9 TO 10 FT.
SUN
E WINDS 15 TO 20 KT. SEAS 9 TO 11 FT.
SUN NIGHT
E WINDS 10 TO 20 KT. SEAS 9 TO 10 FT.
CLICK HERE TO GO TO PREVIOUS BULLETINS.
Main Text Page