FZNT01 KWBC 200408
HSFAT1

HIGH SEAS FORECAST FOR METAREA IV 
NWS OCEAN PREDICTION CENTER WASHINGTON DC 
0430 UTC WED MAY 20 2026 

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SUPERSEDED BY NEXT ISSUANCE IN 6 HOURS 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). 

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 0000 UTC MAY 20. 
24 HOUR FORECAST VALID 0000 UTC MAY 21. 
48 HOUR FORECAST VALID 0000 UTC MAY 22. 

.WARNINGS. 

...GALE WARNING... 
.COMPLEX LOW E OF AREA WITH MAIN CENTER 47N31W 986 MB MOVING NE 
15 KT. FROM 37N TO 48N E OF 43W WINDS 25 TO 35 KT. SEAS 3 TO 5 
M. ELSEWHERE E OF A LINE FROM 53N50W TO 32N47W WINDS 20 TO 30 
KT. SEAS 2.5 TO 4.5 M.
.24 HOUR FORECAST LOW E OF AREA NEAR 51N28W 987 MB. WITHIN 660 
NM W SEMICIRCLE W OF 35W WINDS 20 TO 30 KT. SEAS 2.5 TO 4.5 
M...HIGHEST NEAR 49N40W.
.48 HOUR FORECAST LOW AND ASSOCIATED CONDITIONS MOVED E OF AREA.

...GALE WARNING...
.LOW 53N40W 993 MB MOVING SE 05 KT. CONDITIONS AS DESCRIBED WITH 
COMPLEX LOW ABOVE. ALSO WITHIN 360 NM N AND NW QUADRANTS WINDS 
TO 25 KT. SEAS TO 3.5 M.
.12 HOUR FORECAST LOW 51N38W 993 MB. WITHIN 360 NM SW SEMICIRCLE 
WINDS 25 TO 35 KT. SEAS 3 TO 4.5 M.
.24 HOUR FORECAST LOW DISSIPATED WITH CONDITIONS MERGED WITH LOW 
E OF AREA 51N28W ABOVE.

...GALE WARNING...
.24 HOUR FORECAST NEW LOW 56N45W 1008 MB. FROM 58N TO 60N 
BETWEEN 43W AND 49W AREA OF E TO NE WINDS 25 TO 35 KT. SEAS 3 TO 
4.5 M. ELSEWHERE BETWEEN 61N AND A LINE FROM 55N41W TO 59N51W 
WINDS 20 TO 30 KT. SEAS TO 3 M.
.36 HOUR FORECAST LOW AND CONDITIONS ABSORBED BY LOW 54N54W 
DESCRIBED BELOW.

...GALE WARNING...
.24 HOUR FORECAST INLAND LOW 53N61W 988 MB. WITHIN 300 NM SW 
QUADRANT WINDS 25 TO 35 KT. SEAS TO 2.5 M. ELSEWHERE W OF A LINE 
FROM 58N53W TO 40N50W TO 35N50W WINDS TO 25 KT. SEAS TO 3 
M...HIGHEST NEAR 39N57W.
.36 HOUR FORECAST LOW 54N54W 982 MB. FROM 47N TO 56N BETWEEN 47W 
AND 66W AND WITHIN 240 NM N OF A LINE FROM 41N50W TO 56N44W TOO 
58N53W WINDS 25 TO 40 KT. SEAS 3 TO 5 M...EXCEPT S OF 56N SEAS 
TO 3.5 M.
.48 HOUR FORECAST LOW 54N51W 978 MB. WITHIN 240 S AND SW 
QUADRANTS...WITHIN 180 NM S AND SW OF A LINE FROM LOW TO 58N60W 
AND FROM 57N TO 60N BETWEEN 42W AND 56W WINDS 30 TO 45 KT. SEAS 
3 TO 6 M...EXCEPT S OF 57N SEAS 2.5 TO 4 M. ELSEWHERE BETWEEN 
62N AND A LINE FROM 41N35W TO 41N50W TO 49N66W WINDS 20 TO 30 
KT. SEAS TO 3 M. 

.SYNOPSIS AND FORECAST. 

.COMPLEX LOW WITH MEAN CENTER 45N62W 1009 MB MOVING SE 30 KT. 
FROM 39N TO 44N W OF 59W WINDS TO 25 KT. SEAS TO 2.5 M.
.24 HOUR FORECAST LOW 41N47W 1009 MB. FROM 35N TO 40N BETWEEN 
38W AND 50W WINDS TO 25 KT. SEAS TO 3 M. 
.48 HOUR FORECAST LOW E OF AREA NEAR 38N32W 1013 MB. FROM 31N TO 
40N E OF 52W WINDS LESS THAN 25 KT. SEAS TO 2.5 M.

.LOW 61N63W 1000 MB MOVING S 10 KT. WITHIN 180 NM NE SEMICIRCLE 
WINDS TO 25 KT. SEAS TO 2.5 M. 
.24 HOUR FORECAST LOW DISSIPATED. CONDITIONS DIMINISHED. 

.DENSE FOG. VSBY OCCASIONALLY LESS THAN 1 NM FROM 42N TO 45N 
BETWEEN 57W AND 67W...FROM 53N TO 65N BETWEEN 44W AND 53W...AND 
FROM 59N TO 65N W OF 61W.
.24 HOUR FORECAST DENSE FOG FROM 42N TO 56N BETWEEN 51W AND 64W 
AND FROM 59N TO 64N BETWEEN 43W AND 64W. 
.48 HOUR FORECAST DENSE FOG FROM 51N TO 60N W OF 43W AND FROM 
60N TO 65N W OF 61W.

.FORECASTER BANCROFT. OCEAN PREDICTION CENTER.

NATIONAL HURRICANE CENTER MIAMI FL

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

SYNOPSIS VALID 0000 UTC WED MAY 20.
24 HOUR FORECAST VALID 0000 UTC THU MAY 21.
48 HOUR FORECAST VALID 0000 UTC FRI MAY 22.

.WARNINGS.

.NONE.

.SYNOPSIS AND FORECAST.

.ATLC WITHIN 21N72W TO 20N72W TO 20N70W TO 19N69W TO 19N67W TO
21N72W E WINDS 20 TO 25 KT. SEAS LESS THAN 2.5 M.
.24 HOUR FORECAST LITTLE CHANGE.
.48 HOUR FORECAST CONDITIONS IMPROVE.

.ATLC WITHIN 10N46W TO 09N52W TO 11N54W TO 09N56W TO 07N53W TO
08N47W TO 10N46W WINDS 20 KT OR LESS. SEAS 2.5 TO 3.0 M IN NE TO
E SWELL.
.21 HOUR FORECAST CONDITIONS IMPROVE.

.ATLC 06 HOUR FORECAST WITHIN 31N35W TO 31N45W TO 31N43W TO
30N41W TO 30N37W TO 30N35W TO 31N35W WINDS 20 KT OR LESS. SEAS
2.5 TO 3.0 M IN NW TO N SWELL.
.24 HOUR FORECAST WITHIN 31N35W TO 31N42W TO 29N40W TO 29N35W TO
31N35W WINDS 20 KT OR LESS. SEAS 2.5 TO 3.0 M IN NW TO N SWELL.
.39 HOUR FORECAST CONDITIONS IMPROVE. 

.CARIBBEAN WITHIN 15N74W TO 15N80W TO 11N81W TO 10N77W TO 13N70W
TO 15N74W...INCLUDING THE GULF OF VENEZUELA...NE TO E WINDS 20 
TO 30 KT. SEAS 2.5 TO 3.0 M.
.24 HOUR FORECAST WITHIN 15N73W TO 14N79W TO 11N80W TO 10N78W TO
12N74W TO 13N69W TO 15N73W...INCLUDING THE GULF OF 
VENEZUELA...NE TO E WINDS 20 TO 25 KT. SEAS TO 2.5 M.
.48 HOUR FORECAST WITHIN 14N71W TO 15N74W TO 14N74W TO 13N72W TO
11N71W TO 13N69W TO 14N71W...INCLUDING THE GULF OF VENEZUELA...E
WINDS 20 TO 25 KT. SEAS TO 2.5 M.

.CARIBBEAN WITHIN 17N86W TO 16N87W TO 16N85WM TO 
17N86W...INCLUDING THE GULF OF HONDURAS...E WINDS 20 TO 25 KT. 
SEAS LESS THAN 2.5 M.
.12 HOUR FORECAST CONDITIONS IMPROVE.

.GULF OF AMERICA WITHIN 22N88W TO 22N90W TO 21N90W TO 22N88W E
WINDS 20 TO 25 KT. SEAS LESS THAN 2.5 M.
.09 HOUR FORECAST CONDITIONS IMPROVE.

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

$$
.FORECASTER KONARIK. NATIONAL HURRICANE CENTER.