High Seas Forecast - Western Atlantic, Caribbean and Gulf of Mexico

Expires:No;;851022
FZNT01 KWBC 201538
HSFAT1

HIGH SEAS FORECAST FOR METAREA IV
NWS OCEAN PREDICTION CENTER WASHINGTON DC
1630 UTC TUE MAY 20 2025

CCODE/1:31:04:01:00/AOE/NWS/CCODE
SUPERSEDED BY NEXT ISSUANCE IN 6 HOURS 

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. 

ONLY YOU KNOW THE WEATHER AT YOUR POSITION. REPORT IT TO THE 
NATIONAL WEATHER SERVICE. EMAIL US AT 
VOSOPS@NOAA.GOV(LOWERCASE).

MARINERS SHOULD NOTE THAT FORECASTS FOR SEAS ARE IN UNITS OF
METERS.

FOR INFORMATION ON ATLANTIC ICEBERGS SEE INFORMATION FROM NORTH
ATLANTIC ICE SERVICE AT HTTPS://OCEAN.WEATHER.GOV/ATL_TAB.PHP
(ALL LOWERCASE).

FOR ANY TROPICAL CYCLONE INFORMATION BEYOND 48 HOURS REFERENCE 
THE ASSOCIATED NWS TROPICAL CYCLONE FORECAST/ADVISORY (TCM).

SECURITE

NORTH ATLANTIC NORTH OF 31N TO 67N AND WEST OF 35W

ALL FORECASTS VALID OVER ICE FREE FORECAST WATERS

SYNOPSIS VALID 1200 UTC MAY 20. 
24 HOUR FORECAST VALID 1200 UTC MAY 21.
48 HOUR FORECAST VALID 1200 UTC MAY 22.

.WARNINGS.

...GALE WARNING...
.COMPLEX LOW WITH FIRST LOW 50N52W 1005 MB NEARLY STATIONARY AND
SECOND LOW 56N38W 1012 MB MOVING NW 10 KT. FROM 55N TO 60N
BETWEEN 40W AND 50W WINDS 25 TO 35 KT. SEAS TO 4 M. ELSEWHERE
FROM 50N TO 63N BETWEEN 35W AND 55W WINDS 20 TO 30 KT. SEAS TO 4
M.
.24 HOUR FORECAST COMPLEX LOW DISSIPATED. N OF 50N BETWEEN 50W
AND 60W...AND S OF 63N TO A LINE FROM 54N50W TO 59N40W TO 63N38W
WINDS 25 TO 35 KT. SEAS TO 3.5 M.
.48 HOUR FORECAST N OF 55N BETWEEN 50W AND 60W WINDS 25 TO 35 KT.
SEAS TO 3.5 M.

...GALE WARNING...
.LOW 42N64W 1001 MB MOVING SE 15 KT. FROM 35N TO 50N BETWEEN 60W
AND 70W WINDS 20 TO 30 KT. SEAS TO 3 M.
.24 HOUR FORECAST LOW 39N58W 1002 MB. FROM 31N TO 50N BETWEEN 50W
AND 65W...AND FROM 31N TO 45N BETWEEN 35W AND 50W WINDS 25 TO 35
KT. SEAS TO 3.5 M.
.48 HOUR FORECAST COMPLEX LOW WITH FIRST LOW 40N50W 1011 MB AND
SECOND NEW LOW 48N30W 1005 MB. E OF A LINE FROM 50N40W TO 40N57W
TO 31N50W WINDS 25 TO 40 KT. SEAS 2.5 TO 5 M.

.SYNOPSIS AND FORECAST.

.COMPLEX LOW WITH FIRST LOW 48N40W 1001 MB AND SECOND LOW 42N57W
998 MB MOVING NE 30 KT. FROM 31N TO 49N BETWEEN 40W AND 60W...AND
FROM 37N TO 50N E OF 40W WINDS 20 TO 30 KT. SEAS TO 3.5 M.
.24 HOUR FORECAST COMBINED LOW 51N42W 1003 MB. FROM 45N TO 55N E
OF 45W WINDS 20 TO 30 KT. SEAS TO 3.5 M.
.48 HOUR FORECAST LOW AND CONDITIONS E OF AREA.

.48 HOUR FORECAST LOW 38N72W 1004 MB. FROM 31N TO 44N BETWEEN 65W
AND 75W WINDS 20 TO 30 KT. SEAS TO 3.5 M.

.DENSE FOG. VSBY OCCASIONALLY LESS THAN 1 NM FROM 48N TO 54N
BETWEEN 50W AND 56W...AND WITHIN 60 NM FROM 43N60W.
.24 HOUR FORECAST DENSE FOG FROM 48N TO 53N W OF 50W...AND WITHIN
60 NM FROM 63N39W.
.48 HOUR FORECAST DENSE FOG N OF 62N E OF 39W.

.24 HOUR FORECAST LIGHT FREEZING SPRAY NW OF A LINE FROM 51N60W
TO 66N54W.
.48 HOUR FORECAST LIGHT FREEZING SPRAY N OF 62N W OF 55W.

.FORECASTER EHRBAR. OCEAN PREDICTION CENTER.

NWS NATIONAL HURRICANE CENTER MIAMI FL

ATLANTIC FROM 07N TO 31N W OF 35W INCLUDING CARIBBEAN SEA AND
GULF OF AMERICA

SYNOPSIS VALID 1200 UTC TUE MAY 20.
24 HOUR FORECAST VALID 1200 UTC WED MAY 21.
48 HOUR FORECAST VALID 1200 UTC THU MAY 22.

.WARNINGS.

.NONE.

.SYNOPSIS AND FORECAST.

.ATLC FRONTAL TROUGH FROM 31N58W TO 27N63W. WITHIN 31N52.5W TO 
31N54.5W TO 30N54.5W TO 30N53.5W TO 30.5N53W TO 31N52.5W S TO SW
WINDS 20 TO 25 KT. SEAS 2.5 M.
.24 HOUR FORECAST FRONTAL TROUGH FROM 31N54W TO 27N60W. WITHIN 
31N48W TO 31N54W TO 29N53W TO 29N51W TO 31N48W S TO SW WINDS 20 
TO 25 KT. SEAS 2.5 TO 3.0 M IN S TO SW SWELL.
.48 HOUR FORECAST FRONTAL TROUGH FROM 31N51W TO 27N58.5W. WITHIN
31N46W TO 31N50W TO 30N49W TO 30N47W TO 31N46W WINDS 20 KT OR 
LESS. SEAS 2.5 M IN MIXED SWELL.

.ATLC WITHIN 12N35W TO 11N36W TO 10N36W TO 10N35W TO 12N35W
WINDS 20 KT OR LESS. SEAS 2.5 IN NE SWELL. WITHIN 09N49W TO 
12N55W TO 12N56W TO 09N54W TO 07N50W TO 08N44W TO 09N49W WINDS 20
KT OR LESS. SEAS 2.5 IN NE TO E SWELL.
.24 HOUR FORECAST WITHIN 11N35W TO 09N39W TO 08N42W TO 07N43W TO
07N35W TO 11N35W WINDS 20 KT OR LESS. SEAS 2.5 M IN NE SWELL.
.48 HOUR FORECAST WITHIN 09N40W TO 09N42W TO 08N43W TO 08N44W TO
07N43W TO 07N38W TO 09N40W WINDS 20 KT OR LESS. SEAS 2.5 M IN
MIXED NE AND SE SWELL.

.CARIBBEAN WITHIN 18N85W TO 18N86W TO 18N87W TO 17N87W TO 16N85W
TO 18N85W...INCLUDING NEAR THE GULF OF HONDURAS...E TO SE WINDS 
20 TO 25 KT. SEAS LESS THAN 2.5 M.
.24 HOUR FORECAST LITTLE CHANGE.
.48 HOUR FORECAST LITTLE CHANGE.

.GULF OF AMERICA 12 HOUR FORECAST WITHIN 22N87W TO 23N88W TO
23N89W TO 22N90W TO 21N87W TO 22N87W E TO SE WINDS 20 TO 25 KT.
SEAS LESS THAN 2.5 M.
.18 HOUR FORECAST CONDITIONS IMPROVE. WINDS 20 KT OR LESS. SEAS
LESS THAN 2.5 M.

.REMAINDER OF AREA WINDS 20 KT OR LESS. SEAS LESS THAN 2.5 M.


.FORECASTER LEWITSKY. NATIONAL HURRICANE CENTER.

$$