Expires:No;;893979
FZNT01 KWBC 210954
HSFAT1

HIGH SEAS FORECAST FOR METAREA IV
NWS OCEAN PREDICTION CENTER WASHINGTON DC
1030 UTC WED MAY 21 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SUPERSEDED BY NEXT ISSUANCE IN 6 HOURS 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 0600 UTC MAY 21. 
24 HOUR FORECAST VALID 0600 UTC MAY 22.
48 HOUR FORECAST VALID 0600 UTC MAY 23.

.WARNINGS.

...GALE WARNING...
.LOW 60N38W 1015 MB MOVING NW 10 KT. WITHIN 180 NM NW OF A LINE
FROM 55N50W TO 60N37W WINDS 25 TO 35 KT. SEAS TO 3.5 M. ELSEWHERE
WITHIN 240 NM N QUADRANT...AND FROM 50N TO 64N W OF 50W WINDS TO
25 KT. SEAS TO 3 M.
.06 HOUR FORECAST LOW DISSIPATED. N OF 64N W OF GREENLAND AREA OF
N TO NW WINDS 25 TO 35 KT. SEAS TO 3.5 M.
.24 HOUR FORECAST N OF 60N BETWEEN 50W AND 58W AREA OF N TO NW
WINDS 20 TO 30 KT. SEAS TO 3.5 M. ELSEWHERE N OF 50N W OF 48W
WINDS TO 25 KT. SEAS TO 3 M.
.48 HOUR FORECAST N OF 56N BETWEEN 48W AND 58W AREA OF N TO NW
WINDS 25 TO 35 KT. SEAS TO 4 M. ELSEWHERE N OF 54N BETWEEN 40W
AND 58W AREA OF N TO NW WINDS TO 25 KT. SEAS TO 3 M.

...GALE WARNING...
.COMPLEX LOW WITH FIRST CENTER 40N58W 1000 MB MOVING E 15 KT AND
SECOND CENTER 44N50W 1006 MB MOVING NE 15 KT. WITHIN 240 NM SW
AND W QUADRANTS OF FIRST CENTER WINDS 25 TO 35 KT. SEAS TO 3.5 M.
ALSO WITHIN 420 NM E AND 480 NM SE QUADRANTS OF SECOND CENTER
WINDS 20 TO 30 KT. SEAS TO 3.5 M. ELSEWHERE WITHIN 600 NM
SE...480 NM SW...AND 360 NM NW QUADRANTS OF FIRST CENTER WINDS TO
25 KT. SEAS TO 3 M.
.12 HOUR FORECAST LOW 40N54W 1002 MB. WITHIN 660 NM E AND SE
QUADRANTS WINDS 25 TO 35 KT. SEAS TO 4 M.
.24 HOUR FORECAST COMPLEX LOW WITH MAIN CENTER 40N51W 1005 MB.
WITHIN 480 NM SE OF A FRONT FROM 49N40W TO 31N50W WINDS 25 TO 35
KT. SEAS 3 TO 5.5 M. ELSEWHERE WITHIN 300 NM NW AND 420 NM SW
QUADRANTS...AND S OF 50N E OF 50W...EXCEPT S OF 38N E OF
40W...WINDS TO 25 KT. SEAS TO 4 M.
.48 HOUR FORECAST LOW 48N40W 1008 MB. FROM 37N TO 53N E OF 48W
WINDS 20 TO 30 KT. SEAS 2.5 TO 4.5 M...HIGHEST SE AND E
QUADRANTS.

...GALE WARNING...
.LOW 50N42W 1000 MB MOVING NE 20 KT. WITHIN 300 NM NE AND 540 NM
SE QUADRANTS WINDS 20 TO 30 KT. SEAS TO 3 M.
.24 HOUR FORECAST COMPLEX LOW WITH MAIN CENTER 56N38W 1000 MB.
FROM 52N TO 60N E OF 45W WINDS 20 TO 30 KT. SEAS TO 3.5 M.
.48 HOUR FORECAST LOW E OF AREA NEAR 64N32W 988 MB. N OF 61N E OF
38W WINDS 25 TO 35 KT. SEAS TO 3 M.

...GALE WARNING...
.24 HOUR FORECAST NEW LOW NEAR 37N74W 1003 MB. S OF 41N W OF 69W
WINDS 20 TO 30 KT. SEAS TO 3 M.
.33 HOUR FORECAST LOW 38N73W 1002 MB. WITHIN 300 NM N AND NE
QUADRANTS WINDS 25 TO 35 KT. SEAS TO 4 M.
.48 HOUR FORECAST LOW 42N70W 996 MB. FROM 38N TO 45N W OF 59W
WINDS 25 TO 40 KT. SEAS 2.5 TO 5 M. ELSEWHERE N OF 35N W OF 57W
WINDS TO 25 KT. SEAS TO 3 M.

.SYNOPSIS AND FORECAST.

.DENSE FOG. VSBY OCCASIONALLY LESS THAN 1 NM FROM 43N TO 54N E OF
57W.
.24 HOUR FORECAST DENSE FOG FROM 46N TO 52N BETWEEN 47W AND
57W...N OF 63N E OF GREENLAND...FROM 54N TO 58N E OF 40W...AND
WITHIN 180 NM SE OF A LINE FROM 43N52W TO 51N35W.
.48 HOUR FORECAST DENSE FOG N OF 63N E OF GREENLAND...AND WITHIN
120 NM SE OF A LINE FROM 50N41W TO 54N35W.

.LIGHT FREEZING SPRAY NW OF A LINE FROM 60N60W TO 64N52W.
.24 HOUR FORECAST LITTLE CHANGE. 
.48 HOUR FORECAST LITTLE CHANGE.

.FORECASTER ANDERSON. 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 0600 UTC WED MAY 21.
24 HOUR FORECAST VALID 0600 UTC THU MAY 22.
48 HOUR FORECAST VALID 0600 UTC FRI MAY 23.

.WARNINGS.

.NONE.

.SYNOPSIS AND FORECAST.

.ATLC WITHIN 31N50W TO 31N54W TO 30N53W TO 30N52W TO 29N51W TO
30N51W TO 31N50W S TO SW WINDS 20 TO 25 KT. SEAS TO 2.5 M IN
MERGING S AND NW SWELL.
.24 HOUR FORECAST WITHIN 31N46W TO 31N50W TO 30N50W TO 30N48W TO
31N46W WINDS 20 KT OR LESS. SEAS 2.5 TO 3.0 M IN MERGING SE AND 
NW SWELL.
.36 HOUR FORECAST CONDITIONS IMPROVE. WINDS 20 KT OR LESS. SEAS 
LESS THAN 2.5 M.

.CARIBBEAN WITHIN 17N86W TO 18N86W TO 17N87W TO 16N87W TO 16N86W
TO 17N85W TO 17N86W...INCLUDING THE GULF OF HONDURAS... E TO SE
WINDS 20 TO 25 KT. SEAS LESS THAN 2.5 M.
.09 HOUR FORECAST CONDITIONS IMPROVE. WINDS 20 KT OR LESS. SEAS 
LESS THAN 2.5 M.

.CARIBBEAN 18 HOUR FORECAST WITHIN 13N71W TO 13N74W TO 12N74W TO
12N73W TO 11N71W TO 12N70W TO 13N71W...INCLUDING THE GULF OF
VENEZUELA... NE TO E WINDS 20 TO 25 KT. SEAS LESS THAN 2.5 M.
.24 HOUR FORECAST WITHIN 12N74.5W TO 12.5N75W TO 12.5N75.5W TO 
12N75.5W TO 12N75W TO 11.5N74.5W TO 12N74.5W E WINDS 20 TO 25 KT.
SEAS 2.5 M IN NE TO E SWELL.
.48 HOUR FORECAST WITHIN 14N72W TO 15N76W TO 14N78W TO 12N77W TO
11N75W TO 13N71W TO 14N72W NE TO E WINDS 20 TO 25 KT. SEAS 2.5 
TO 3.0 M IN E SWELL.

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

.FORECASTER STRIPLING. NATIONAL HURRICANE CENTER.

$$