METAREA 4 bulletinset


HIGH SEAS FORECAST
FZNT01 KWBC 290420

HSFAT1

HIGH SEAS FORECAST FOR METAREA IV

NWS OCEAN PREDICTION CENTER WASHINGTON DC

0430 UTC WED JUL 29 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SUPERSEDED BY NEXT ISSUANCE IN 6 HOURS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 JUL 29.

24 HOUR FORECAST VALID 0000 UTC JUL 30.

48 HOUR FORECAST VALID 0000 UTC JUL 31.

.WARNINGS.

...GALE WARNING...

.LOW 35N67W 1006 MB MOVING NE 15 KT. WITHIN 180 NM SE SEMICIRCLE

WINDS 25 TO 35 KT. SEAS 2.5 TO 3.5 M. ELSEWHERE S OF 37N BETWEEN

A LINE FROM 37N55W TO 31N63W AND A LINE FROM 37N63W TO 31N71W

WINDS TO 25 KT. SEAS TO 3 M.

.24 HOUR FORECAST LOW AND ASSOCIATED CONDITIONS MERGED WITH LOW

41N72W DESCRIBED BELOW.

...GALE WARNING...

.LOW 38N59W 1008 MB MOVING NE 25 KT. WITHIN 240 NM W OF A LINE

FROM 37N55W TO 39N52W WINDS 20 TO 30 KT. SEAS TO 3.5 M.

.06 HOUR FORECAST LOW 40N55W 1008 MB. WITHIN 90 NM S SEMICIRCLE

WINDS 25 TO 35 KT. SEAS TO 4 M.

.24 HOUR FORECAST LOW 45N45W 1010 MB. WITHIN 150 NM S

SEMICIRLCE...AND WITHIN 120 NM S OF A LINE FROM 42N43W TO 40N53W

WINDS 20 TO 30 KT. SEAS TO 3 M.

.48 HOUR FORECAST COMPLEX LOW WITH MAIN CENTER NEAR 46N37W 1009

MB. FROM 38N TO 52N E OF 43W WINDS TO 25 KT. SEAS TO 2.5 M.

.SYNOPSIS AND FORECAST.

.LOW 47N55W 1004 MB MOVING NE 20 KT. WITHIN 150 NM NE OF A LINE

FROM 46N49W TO 48N54W WINDS TO 25 KT. SEAS TO 2.5 M.

.24 HOUR FORECAST LOW 49N50W 1006 MB. WITHIN 150 NM SW

QUADRANT...AND BETWEEN 150 NM AND 360 NM NE SEMICIRCLE WINDS 20

TO 30 KT. SEAS TO 2.5 M.

.48 HOUR FORECAST LOW AND ASSOCIATED CONDITIONS MERGED WITH LOW

46N37W DESCRIBED ABOVE.

.COMPLEX LOW E OF AREA WITH MAIN CENTER NEAR 41N32W 1006 MB

MOVING SE 10 KT. FROM 33N TO 49N E OF 41W WINDS TO 25 KT. SEAS TO

3.5 M...HIGHEST NEAR 37N36W.

.24 HOUR FORECAST LOW AND ASSOCIATED CONDITIONS MOVED E OF AREA.

.24 HOUR FORECAST LOW 41N72W 999 MB. WITHIN 180 NM NE

QUADRANT...AND S OF 40N BETWEEN A LINE FROM 40N55W TO 31N63W AND

A LINE FROM 40N67W TO 31N76W WINDS 20 TO 30 KT. SEAS TO 3.5

M...HIGHEST NEAR 36N60W.

.48 HOUR FORECAST LOW 42N69W 1005 MB. WITHIN 120 NM W

SEMICIRLCE...AND S OF 41N BETWEEN A LINE FROM 40N52W TO 31N65W

AND A LINE FROM 40N62W TO 31N78W WINDS 20 TO 30 KT. SEAS 2.5 TO 4

M.

.24 HOUR FORECAST N OF 65N BETWEEN 53W AND 56W WINDS TO 25 KT.

SEAS LESS THAN 2.5 M.

.48 HOUR FORECAST CONDITIONS DIMINISHED.

.DENSE FOG. VSBY OCCASIONALLY LESS THAN 1 NM FROM 43N TO 48N

BETWEEN 46W AND 57W...FROM 56N TO 61N W OF 60W...AND N OF 62N W

OF A LINE FROM 62N61W TO 67N57W.

.24 HOUR FORECAST DENSE FOG FROM 44N TO 53N BETWEEN 42W AND

53W...AND N OF 61N BETWEEN 53W AND 62W.

.48 HOUR FORECAST DENSE FOG FROM 42N TO 45N BETWEEN 57W AND

68W...WITHIN 150 NM E OF A LINE FROM 47N49W TO 51N57W...FROM 54N

TO 64N W OF 55W...AND N OF 65N W OF 57W.

.FORECASTER POCHE. 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 0000 UTC WED JUL 29.

24 HOUR FORECAST VALID 0000 UTC THU JUL 30.

48 HOUR FORECAST VALID 0000 UTC FRI JUL 31.

.WARNINGS.

.NONE.

.SYNOPSIS AND FORECAST.

.ATLC WITHIN 31N67W TO 31N71W TO 30.5N70.5W TO 30N69.5W TO

31N67W SW WINDS 20 TO 25 KT. SEAS 2.5 TO 3.0 M.

.24 HOUR FORECAST WITHIN 31N65W TO 31N71W TO 30N71W TO 30N69W TO

30N67W TO 31N65W SW WINDS 20 TO 25 KT. SEAS 2.5 TO 3.0 M.

.48 HOUR FORECAST WITHIN 31N67W TO 31N72.5W TO 30N71W TO 30N68W

TO 31N67W WINDS 20 KT OR LESS. SEAS 2.5 TO 3.0 M IN SW TO W

SWELL.

.ATLC 24 HOUR FORECAST WITHIN 21N70W TO 21N71W TO 21N72W TO

20N72W TO 20N70W TO 21N70W E WINDS 20 TO 25 KT. SEAS LESS THAN

2.5 M.

.48 HOUR FORECAST WITHIN 21N70W TO 22N70W TO 22N71W TO 21N72W TO

20N72W TO 20N70W TO 21N70W E TO SE WINDS 20 TO 30 KT. SEAS LESS

THAN 2.5 M.

.CARIBBEAN WITHIN 14N71W TO 13N74W TO 11N74W TO 12N72W TO 11N71W

TO 11N69W TO 14N71W...INCLUDING THE GULF OF VENEZUELA...NE TO E

WINDS 20 TO 30 KT. SEAS LESS THAN 2.5 M.

.24 HOUR FORECAST WITHIN 16N72W TO 13N77W TO 11N76W TO 12N72W TO

11N68W TO 11N64W TO 16N72W...INCLUDING THE GULF OF VENEZUELA...

NE TO E WINDS 20 TO 30 KT. SEAS 2.5 TO 3.0 M.

.48 HOUR FORECAST WITHIN 18N72W TO 16N79W TO 11N79W TO 11N73W TO

11N64W TO 18N72W...INCLUDING THE GULF OF VENEZUELA...NE TO E

WINDS 20 TO 30 KT. SEAS 2.5 TO 3.5 M.

.CARIBBEAN 24 HOUR FORECAST WITHIN 17N86W TO 17N87W TO 16N87W TO

16N86W TO 17N86W...INCLUDING THE GULF OF HONDURAS...E WINDS 20

TO 25 KT. SEAS LESS THAN 2.5 M.

.48 HOUR FORECAST LITTLE CHANGE.

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

.FORECASTER ERA. NATIONAL HURRICANE CENTER.

$$