National Weather Service Marine Forecast FZNT01 KWBC

FZNT01 KWBC 310345
HSFAT1

HIGH SEAS FORECAST FOR METAREA IV
NWS OCEAN PREDICTION CENTER WASHINGTON DC
0430 UTC FRI JUL 31 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CCODE/1:31:04:01:00/AOE/NWS/CCODE SUPERSEDED BY NEXT ISSUANCE IN 6 HOURS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 31. 24 HOUR FORECAST VALID 0000 UTC AUG 01. 48 HOUR FORECAST VALID 0000 UTC AUG 02.

.WARNINGS.

.NONE.

.SYNOPSIS AND FORECAST.

.COMPLEX LOW WITH MAIN CENTER 44N64W 1006 MB MOVING NE 05 KT. WITHIN 420 NM E OF A FRONT FROM 45N61W TO 31N74W WINDS TO 25 KT. SEAS 2.5 TO 4 M. .24 HOUR FORECAST COMBINED LOW 46N61W 1008 MB. WITHIN 360 NM E OF A FRONT FROM 43N57W TO 31N73W WINDS TO 25 KT. SEAS TO 3.5 M. .48 HOUR FORECAST LOW 47N56W 1012 MB. FROM 34N TO 45N BETWEEN 38W AND 63W WINDS LESS THAN 25 KT. SEAS TO 2.5 M.

.COMPLEX LOW WITH MAIN CENTER 47N35W 1007 MB MOVING SE 05 KT. FROM 42N TO 53N E OF 48W WINDS TO 25 KT. SEAS TO 3 M. .24 HOUR FORECAST COMBINED LOW E OF AREA 46N31W 1007 MB. FROM 40N TO 52N E OF 42W WINDS TO 25 KT. SEAS TO 3 M. .48 HOUR FORECAST LOW AND ASSOCIATED CONDITIONS E OF AREA.

.DENSE FOG. VSBY OCCASIONALLY LESS THAN 1 NM FROM 42N TO 46N BETWEEN 57W AND 69W...AND N OF 57N W OF 52W. .24 HOUR FORECAST DENSE FOG FROM 43N TO 46N BETWEEN 44W AND 61W...AND N OF 55N W OF 51W. .48 HOUR FORECAST DENSE FOG FROM 43N TO 50N BETWEEN 44W AND 58W...AND N OF 57N W OF 57W.

.FORECASTER KELLS. 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 FRI JUL 31. 24 HOUR FORECAST VALID 0000 UTC SAT AUG 1. 48 HOUR FORECAST VALID 0000 UTC SUN AUG 2.

.WARNINGS.

CARIBBEAN GALE WARNING

.WITHIN 11.5N74.5W TO 11.5N75W TO 11N75W TO 11N74.5W TO 11.5N74.5W NE TO E WINDS 25 TO 35 KT. SEAS 2.5 TO 3.5 M. WITHIN 12N70W TO 12N71W TO 11N72W TO 10N72W TO 11N71W TO 11N70W TO 12N70W...INCLUDING THE GULF OF VENEZUELA...NE TO E WINDS 25 TO 35 KT. SEAS TO 2.5 M. ELSEWHERE WITHIN 18N72W TO 16N80W TO 12N81W TO 10N78W TO 12N72W TO 12N66W TO 18N72W NE TO E WINDS 20 TO 30 KT. SEAS 2.5 TO 3.5 M. .12 HOUR FORECAST WITHIN 18N72W TO 18N78W TO 13N82W TO 09N77W TO 13N69W TO 18N72W...INCLUDING THE GULF OF VENEZUELA...E WINDS 20 TO 30 KT. SEAS 2.5 TO 4.0 M. .24 HOUR FORECAST WITHIN 14N70W TO 17N76W TO 15N82W TO 10N81W TO 12N69W TO 14N70W...INCLUDING THE GULF OF VENEZUELA...NE TO E WINDS 20 TO 30 KT. SEAS 2.5 TO 3.0 M. .48 HOUR FORECAST WITHIN 13N67W TO 15N70W TO 14N72W TO 11N71W TO 12N69W TO 11N68W TO 13N67W...INCLUDING THE GULF OF VENEZUELA... E WINDS 20 TO 25 KT. SEAS LESS THAN 2.5 M.

.SYNOPSIS AND FORECAST.

.ATLC WITHIN 31N67W TO 31N74W TO 30N73W TO 30N71W TO 31N67W SW WINDS 20 TO 25 KT. SEAS 2.5 TO 3.0 M. .24 HOUR FORECAST WITHIN 31N69.5W TO 31N71W TO 30N71W TO 30N70W TO 31N69.5W S TO SW WINDS 20 TO 25 KT. SEAS LESS THAN 2.5 M. .30 HOUR FORECAST CONDITIONS IMPROVE. WINDS 20 KT OR LESS. SEAS LESS THAN 2.5 M.

.ATLC WITHIN 21N70W TO 22N71W TO 21N72W TO 20N72W TO 20N70W TO 21N70W E TO SE WINDS 20 TO 25 KT. SEAS 2.5 TO 3.0 M. .24 HOUR FORECAST WITHIN 21N72W TO 21N74W TO 20N74W TO 20N71W TO 21N72W E WINDS 20 TO 30 KT. SEAS TO 2.5 M. .48 HOUR FORECAST WITHIN 21N71W TO 21N72W TO 20N72W TO 20N71W TO 21N71W E WINDS 20 TO 25 KT. SEAS LESS THAN 2.5 M.

.ATLC WITHIN 16N53W TO 16N55W TO 15N58W TO 16N61W TO 12N60W TO 13N54W TO 16N53W...INCLUDING IN ATLANTIC EXPOSURES AND PASSAGES...WINDS 20 KT OR LESS. SEAS 2.5 TO 3.0 M IN NE TO E SWELL. .18 HOUR FORECAST CONDITIONS IMPROVE. WINDS 20 KT OR LESS. SEAS LESS THAN 2.5 M.

.CARIBBEAN WITHIN 18N72W TO 16N80W TO 12N81W TO 10N78W TO 12N72W TO 12N66W TO 18N72W NE TO E WINDS 20 TO 25 KT. SEAS LESS THAN 2.5 M. .06 HOUR FORECAST CONDITIONS IMPROVE. WINDS 20 KT OR LESS. SEAS LESS THAN 2.5 M. .24 HOUR FORECAST WITHIN 17N86W TO 17N87W TO 16N87W TO 16N86W TO 17N86W E WINDS 20 TO 25 KT. SEAS LESS THAN 2.5 M. .36 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.

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.FORECASTER ERA. NATIONAL HURRICANE CENTER.