Offshore Forecast
Issued by NWS

Home | Current Version | Previous Version | Text Only | Print | Product List | Glossary On
Versions: 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50
000
FZNT31 KNHC 201455
OFFN20

MARINE WEATHER HF VOICE BROADCAST
NWS NATIONAL HURRICANE CENTER MIAMI FL
955 AM EST MON FEB 20 2017

MARINE WEATHER HF VOICE BROADCAST FOR THE TROPICAL N ATLANTIC
FROM 07N TO 22N BETWEEN 55W AND 64W...THE SW N ATLANTIC S OF
31N W OF 65W INCLUDING 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 ATLC FROM 07N TO 19N
BETWEEN 55W AND 64W

.SYNOPSIS...HIGH PRES N OF THE AREA WILL SUPPORT FRESH TO STRONG
WINDS IN THE GULF OF HONDURAS AND OFF THE COAST OF COLOMBIA
TODAY THROUGH EARLY TUE MORNING. A SURFACE TROUGH WILL MOVE
ACROSS THE NW CARIBBEAN WATERS WED THROUGH FRIDAY SUPPORTING
FRESH TO STRONG WINDS OFF THE COAST OF BELIZE...THE GULF OF
HONDURAS...THE YUCATAN CHANNEL AND CUBA SOUTHERN WATERS THROUGH
THU AND THE WINDWARD PASSAGE THU THROUGH FRIDAY. LIGHT TO
MODERATE WINDS WILL DOMINATE ELSEWHERE THROUGH FRIDAY.

NW CARIBBEAN W OF 85W

.TODAY...SE WINDS 10 TO 20 KT. SEAS 4 TO 6 FT.
.TONIGHT...E WINDS 10 TO 20 KT. SEAS 4 TO 6 FT.
.TUE...SE WINDS 10 TO 15 KT. SEAS 4 TO 6 FT.
.TUE NIGHT...SE WINDS 10 TO 15 KT. SEAS 3 TO 4 FT.
.WED...W WINDS 10 TO 20 KT. SEAS 4 TO 6 FT.
.WED NIGHT...W WINDS 10 TO 20 KT. SEAS 4 TO 6 FT.
.THU...W WINDS 10 TO 15 KT. SEAS 4 TO 6 FT.
.THU NIGHT...NW WINDS LESS THAN 10 KT...SHIFTING TO E AFTER
MIDNIGHT. SEAS 3 FT.
.FRI...VARIABLE WINDS LESS THAN 10 KT...BECOMING S LESS THAN
10 KT IN THE AFTERNOON. SEAS 2 FT OR LESS.
.FRI NIGHT...E WINDS LESS THAN 10 KT...INCREASING TO 10 TO 15 KT
AFTER MIDNIGHT. SEAS 2 FT OR LESS...BUILDING TO 3 FT AFTER
MIDNIGHT.

CARIBBEAN N OF 15N BETWEEN 72W AND 85W

.TODAY...S OF 18N...E WINDS 10 TO 15 KT...DIMINISHING TO LESS
THAN 10 KT IN THE AFTERNOON. ELSEWHERE...NE WINDS 10 TO 15 KT.
SEAS 3 TO 5 FT.
.TONIGHT...NE WINDS LESS THAN 10 KT S OF 18N...AND NE 10 TO
15 KT ELSEWHERE. SEAS 3 TO 4 FT.
.TUE...S OF 18N...NE WINDS 10 TO 15 KT...SHIFTING TO E IN THE
AFTERNOON. ELSEWHERE...E WINDS 10 TO 15 KT. SEAS 3 TO 4 FT.
.TUE NIGHT...E WINDS LESS THAN 10 KT. SEAS 3 TO 4 FT.
.WED...SE WINDS LESS THAN 10 KT...SHIFTING TO S IN THE
AFTERNOON. SEAS 3 TO 4 FT.
.WED NIGHT...SW WINDS 10 TO 15 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...DIMINISHING TO LESS THAN
10 KT AFTER MIDNIGHT. SEAS 3 TO 5 FT.
.FRI...S WINDS LESS THAN 10 KT. SEAS 3 TO 5 FT.
.FRI NIGHT...S WINDS LESS THAN 10 KT IN THE EVENING...BECOMING
VARIABLE WINDS LESS THAN 10 KT. SEAS 3 TO 4 FT.

CARIBBEAN FROM 11N TO 15N W OF 72W

.TODAY...E WINDS 10 TO 15 KT. SEAS 5 TO 7 FT.
.TONIGHT...NE WINDS 10 TO 15 KT. SEAS 3 TO 5 FT.
.TUE...NE WINDS 10 TO 15 KT WITHIN 90 NM OF COAST OF COLOMBIA...
AND NE LESS THAN 10 KT ELSEWHERE. SEAS 3 TO 4 FT.
.TUE NIGHT...NE WINDS 10 TO 15 KT WITHIN 90 NM OF COAST OF
COLOMBIA...AND NE LESS THAN 10 KT ELSEWHERE. SEAS 3 FT.
.WED...E WINDS LESS THAN 10 KT IN THE MORNING...BECOMING
VARIABLE WINDS LESS THAN 10 KT. SEAS 3 FT.
.WED NIGHT...SE WINDS LESS THAN 10 KT. SEAS 2 FT OR LESS.
.THU...SE WINDS LESS THAN 10 KT. SEAS 2 FT OR LESS.
.THU NIGHT...E WINDS LESS THAN 10 KT. SEAS 2 FT OR LESS.
.FRI...SE WINDS LESS THAN 10 KT. SEAS 3 FT.
.FRI NIGHT...E WINDS 10 KT. SEAS 3 FT.

SW CARIBBEAN S OF 11N

.TODAY...NE WINDS LESS THAN 10 KT...SHIFTING TO N IN THE
AFTERNOON. SEAS 4 TO 6 FT.
.TONIGHT...N WINDS 10 TO 15 KT. SEAS 4 TO 6 FT.
.TUE...NE WINDS 10 TO 15 KT...DIMINISHING TO LESS THAN 10 KT IN
THE AFTERNOON. SEAS 3 TO 5 FT.
.TUE NIGHT...NE WINDS 10 TO 15 KT...DIMINISHING TO LESS THAN
10 KT AFTER MIDNIGHT. SEAS 3 TO 4 FT.
.WED...NE WINDS LESS THAN 10 KT. SEAS 3 FT IN THE MORNING...
SUBSIDING TO 2 FT OR LESS.
.WED NIGHT...NE WINDS 10 KT IN THE EVENING...BECOMING VARIABLE
WINDS LESS THAN 10 KT. SEAS 2 FT OR LESS.
.THU...VARIABLE WINDS LESS THAN 10 KT. SEAS 2 FT OR LESS.
.THU NIGHT...NE WINDS LESS THAN 10 KT. SEAS 2 FT OR LESS.
.FRI...E WINDS LESS THAN 10 KT. SEAS 2 FT OR LESS.
.FRI NIGHT...NE WINDS LESS THAN 10 KT. SEAS 2 FT OR LESS.

CARIBBEAN BETWEEN 64W AND 72W

.TODAY...NE WINDS 10 TO 20 KT GULF OF VENEZUELA...AND E LESS
THAN 10 KT ELSEWHERE. SEAS 3 TO 4 FT.
.TONIGHT...NE WINDS 10 TO 15 KT GULF OF VENEZUELA... AND NE LESS
THAN 10 KT ELSEWHERE. SEAS 3 FT.
.TUE...NE WINDS 10 TO 15 KT GULF OF VENEZUELA... AND N LESS THAN
10 KT ELSEWHERE. SEAS 3 TO 4 FT.
.TUE NIGHT...NE WINDS 10 TO 15 KT GULF OF VENEZUELA...AND NE
LESS THAN 10 KT ELSEWHERE. GULF OF VENEZUELA...SEAS 3 FT IN THE
EVENING...SUBSIDING TO 2 FT OR LESS. ELSEWHERE...SEAS 3 TO 5 FT.
.WED...NE WINDS LESS THAN 10 KT. SEAS 3 TO 4 FT.
.WED NIGHT...E WINDS LESS THAN 10 KT. SEAS 3 FT.
.THU...SE WINDS 10 KT. SEAS 3 FT.
.THU NIGHT...E WINDS 10 TO 15 KT. SEAS 3 TO 4 FT.
.FRI...SE WINDS 10 TO 15 KT. SEAS 3 TO 5 FT.
.FRI NIGHT...E WINDS 10 TO 15 KT. SEAS 3 TO 5 FT.

OFFSHORE LEEWARD ISLANDS AND ADJACENT ATLC WATERS FROM 15N TO
19N W OF 55W

.TODAY...SE WINDS 10 TO 15 KT. SEAS 5 TO 7 FT.
.TONIGHT...S WINDS LESS THAN 10 KT. SEAS 4 TO 6 FT.
.TUE...SW WINDS LESS THAN 10 KT. SEAS 4 TO 6 FT.
.TUE NIGHT...W WINDS LESS THAN 10 KT. SEAS 3 TO 5 FT.
.WED...VARIABLE WINDS LESS THAN 10 KT. SEAS 3 TO 5 FT.
.WED NIGHT...E WINDS LESS THAN 10 KT. SEAS 3 TO 5 FT.
.THU...E WINDS LESS THAN 10 KT. SEAS 4 TO 6 FT.
.THU NIGHT...E WINDS 10 TO 15 KT. SEAS 5 TO 7 FT.
.FRI...E WINDS 10 TO 15 KT. SEAS 6 TO 9 FT.
.FRI NIGHT...E WINDS 10 TO 15 KT. SEAS 6 TO 8 FT.

OFFSHORE WINDWARD ISLANDS AND ADJACENT ATLC WATERS FROM 07N TO
15N W OF 55W

.TODAY...E WINDS 10 TO 15 KT...DIMINISHING TO LESS THAN 10 KT IN
THE AFTERNOON. SEAS 4 TO 6 FT.
.TONIGHT...E WINDS LESS THAN 10 KT. SEAS 4 TO 6 FT.
.TUE...SE WINDS LESS THAN 10 KT. SEAS 3 TO 5 FT.
.TUE NIGHT...E WINDS LESS THAN 10 KT. SEAS 3 TO 5 FT.
.WED...VARIABLE WINDS LESS THAN 10 KT. SEAS 3 TO 5 FT.
.WED NIGHT...E WINDS LESS THAN 10 KT. SEAS 3 TO 5 FT.
.THU...E WINDS LESS THAN 10 KT. SEAS 3 TO 5 FT.
.THU NIGHT...E WINDS 10 TO 15 KT. SEAS 4 TO 6 FT.
.FRI...E WINDS 10 TO 15 KT. SEAS 5 TO 7 FT.
.FRI NIGHT...E WINDS 10 TO 15 KT. SEAS 5 TO 7 FT.

SYNOPSIS FOR THE SW N ATLC INCLUDING THE BAHAMAS

.SYNOPSIS...A COLD FRONT EXTENDS FROM LOW PRESSURE CENTERED NEAR
29N69W TO 24N70W...ACROSS THE GREAT BAHAMA BANK TO THE STRAITS
OF FLORIDA NEAR 23N80W. A TIGHT PRES GRADIENT BETWEEN THE
FRONTAL SYSTEM AND HIGH PRES BUILDING ACROSS THE BAHAMAS WILL
SUPPORT FRESH TO STRONG WINDS WITHIN 240 NM FROM THE LOW SW
SEMICIRCLE TODAY. THE LOW WILL MOVE SE TODAY AND OUT OF THE AREA
TONIGHT. A COLD FRONT WILL MOVE SOUTH OF 30N TONIGHT. THE FRONT
WILL EXTEND FROM 28N65W TO 27N70W TUE MORNING. FRESH TO STRONG N
WINDS WILL ACCOMPANY THE FRONT. A LOW WITH ASSOCIATED SURFACE
TROUGH WILL MOVE ACROSS FLORIDA INTO THE W WATERS WED NIGHT
SUPPORTING FRESH TO NEAR GALE FORCE WINDS ACROSS AND NE OF THE
BAHAMAS THROUGH FRI.

ATLC WATERS FROM 27N TO 31N W OF 77W

.TODAY...NE WINDS 10 TO 15 KT. SEAS 3 TO 4 FT.
.TONIGHT...NE WINDS 10 TO 15 KT. SEAS 3 TO 4 FT.
.TUE...E WINDS 10 TO 15 KT. SEAS 3 TO 4 FT.
.TUE NIGHT...SE WINDS 10 TO 15 KT. SEAS 4 TO 5 FT.
.WED...SE WINDS 10 TO 20 KT. SEAS 5 TO 7 FT.
.WED NIGHT...SE WINDS 15 TO 25 KT. SEAS 7 TO 10 FT.
.THU...SE WINDS 20 TO 30 KT...DIMINISHING TO 10 TO 20 KT IN THE
AFTERNOON. SEAS 8 TO 12 FT.
.THU NIGHT...SE WINDS 10 TO 20 KT. SEAS 8 TO 13 FT.
.FRI...E WINDS 10 TO 15 KT. SEAS 8 TO 11 FT.
.FRI NIGHT...N WINDS LESS THAN 10 KT. SEAS 6 TO 9 FT.

ATLC WATERS FROM 27N TO 31N BETWEEN 65W AND 77W

.TODAY...N WINDS 10 TO 20 KT. SEAS 5 TO 7 FT.
.TONIGHT...N WINDS 10 TO 20 KT. SEAS 5 TO 7 FT.
.TUE...NE WINDS 10 TO 20 KT. SEAS 5 TO 7 FT W OF 70W...AND 7 TO
10 FT ELSEWHERE.
.TUE NIGHT...NE WINDS 10 TO 20 KT. SEAS 6 TO 8 FT W OF 70W...AND
8 TO 12 FT ELSEWHERE.
.WED...E WINDS 10 TO 15 KT. SEAS 7 TO 10 FT.
.WED NIGHT...E WINDS 10 TO 15 KT...INCREASING TO 15 TO 25 KT
AFTER MIDNIGHT. SEAS 7 TO 10 FT.
.THU...SE WINDS 15 TO 25 KT. SEAS 8 TO 12 FT.
.THU NIGHT...SE WINDS 10 TO 20 KT. SEAS 8 TO 13 FT.
.FRI...SE WINDS 15 TO 25 KT. SEAS 8 TO 13 FT.
.FRI NIGHT...S WINDS 10 TO 20 KT. SEAS 8 TO 12 FT.

BAHAMAS N OF 22N

.TODAY...N WINDS 10 TO 15 KT. SEAS 3 TO 4 FT.
.TONIGHT...NE WINDS 10 TO 15 KT. SEAS 3 TO 5 FT.
.TUE...NE WINDS 10 TO 15 KT. SEAS 3 TO 5 FT.
.TUE NIGHT...E WINDS 10 TO 15 KT. SEAS 3 TO 5 FT.
.WED...SE WINDS 10 TO 15 KT. SEAS 3 TO 5 FT.
.WED NIGHT...SE WINDS 10 TO 20 KT. SEAS 5 TO 7 FT.
.THU...S WINDS 10 TO 20 KT. SEAS 5 TO 7 FT.
.THU NIGHT...S WINDS 10 TO 15 KT. SEAS 4 TO 6 FT.
.FRI...SW WINDS 10 TO 15 KT...DIMINISHING TO LESS THAN 10 KT IN
THE AFTERNOON. SEAS 4 TO 6 FT.
.FRI NIGHT...VARIABLE WINDS LESS THAN 10 KT. SEAS 3 TO 5 FT.

ATLC WATERS FROM 22N TO 27N BETWEEN 65W AND THE BAHAMAS

.TODAY...NW WINDS 10 TO 20 KT. SEAS 5 TO 7 FT.
.TONIGHT...N WINDS 10 TO 20 KT. SEAS 5 TO 7 FT.
.TUE...NE WINDS 10 TO 20 KT. SEAS 5 TO 7 FT.
.TUE NIGHT...NE WINDS 10 TO 20 KT. SEAS 6 TO 8 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 15 TO 25 KT. SEAS 8 TO 11 FT.
.THU NIGHT...SE WINDS 10 TO 20 KT. SEAS 8 TO 12 FT.
.FRI...S WINDS 10 TO 20 KT. SEAS 8 TO 12 FT.
.FRI NIGHT...S WINDS 10 TO 15 KT. SEAS 6 TO 9 FT.

ATLC WATERS S OF 22N W OF 65W

.TODAY...NW WINDS LESS THAN 10 KT...INCREASING TO 10 TO 15 KT IN
THE AFTERNOON. SEAS 3 TO 5 FT.
.TONIGHT...N WINDS 10 TO 20 KT. SEAS 4 TO 6 FT.
.TUE...N WINDS 10 TO 15 KT...DIMINISHING TO LESS THAN 10 KT IN
THE AFTERNOON. SEAS 4 TO 6 FT.
.TUE NIGHT...NE WINDS 10 TO 15 KT. SEAS 3 TO 5 FT.
.WED...E WINDS 10 TO 15 KT. SEAS 4 TO 6 FT.
.WED NIGHT...E WINDS 10 TO 20 KT. SEAS 5 TO 7 FT.
.THU...SE WINDS 10 TO 20 KT. SEAS 5 TO 7 FT.
.THU NIGHT...SE WINDS 10 TO 20 KT. SEAS 6 TO 8 FT.
.FRI...S WINDS 10 TO 15 KT. SEAS 6 TO 8 FT.
.FRI NIGHT...SE WINDS 10 TO 15 KT. SEAS 4 TO 6 FT.

ATLC WATERS FROM 19N TO 22N BETWEEN 55W AND 65W

.TODAY...SE WINDS LESS THAN 10 KT...SHIFTING TO S IN THE
AFTERNOON. SEAS 5 TO 7 FT.
.TONIGHT...SW WINDS 10 TO 15 KT. SEAS 5 TO 6 FT.
.TUE...SW WINDS 10 TO 15 KT. SEAS 4 TO 6 FT.
.TUE NIGHT...NW WINDS 10 KT. SEAS 4 TO 6 FT.
.WED...N WINDS LESS THAN 10 KT...SHIFTING TO NE IN THE
AFTERNOON. SEAS 4 TO 6 FT.
.WED NIGHT...NE WINDS 10 TO 15 KT. SEAS 5 TO 7 FT.
.THU...E WINDS 10 TO 15 KT. SEAS 6 TO 9 FT.
.THU NIGHT...E WINDS 10 TO 20 KT. SEAS 8 TO 10 FT.
.FRI...E WINDS 10 TO 15 KT. SEAS 8 TO 9 FT.
.FRI NIGHT...E WINDS 10 TO 20 KT. SEAS 6 TO 8 FT.


USA.gov is the U.S. government's official web portal to all federal, state and local government web resources and services.