METAREA 4 bulletinset


HIGH SEAS FORECAST
FZNT01 KWBC 300404

HSFAT1

HIGH SEAS FORECAST FOR METAREA IV

NWS OCEAN PREDICTION CENTER WASHINGTON DC

0430 UTC THU JUL 30 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SUPERSEDED BY NEXT ISSUANCE IN 6 HOURS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 30.

24 HOUR FORECAST VALID 0000 UTC JUL 31.

48 HOUR FORECAST VALID 0000 UTC AUG 01.

.WARNINGS.

...GALE WARNING...

.COMPLEX LOW WITH MAIN CENTER NEAR 47N43W 1009 MB MOVING E 10 KT.

WITHIN 90 NM NE OF A LINE FROM 46N41W TO 48N43W TO 51N49W WINDS

25 TO 35 KT. SEAS TO 3 M. ELSEWHERE FROM 40N TO 53N BETWEEN 39W

AND 54W WINDS TO 25 KT. SEAS TO 2.5 M.

.24 HOUR FORECASTS COMPLEX LOW WITH MAIN CENTER NEAR 48N37W 1009

MB. FROM 44N TO 52N E OF 44W WINDS TO 25 KT. SEAS TO 3

M...HIGHEST NEAR 51N35W.

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

.SYNOPSIS AND FORECAST.

.COMPLEX LOW WITH MEAN CENTER NEAR 41N71W 1002 MB MOVING NE 10

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

40N67W TO 31N77W WINDS 20 TO 30 KT. SEAS TO 3.5 M...HIGHEST NEAR

37N60W.

.24 HOUR FORECAST COMPLEX LOW WITH MAIN CENTER NEAR 42N68W 1006

MB. WITHIN 360 NM E OF A LINE FROM 41N61W TO 31N77W WINDS 20 TO

30 KT. SEAS 2.5 TO 4 M.

.48 HOUR FORECAST COMPLEX LOW WITH MAIN CENTER NEAR 46N60W 1009

MB. FROM 34N TO 43N BETWEEN 48W AND 67W WINDS 20 TO 30 KT. SEAS

TO 3.5 M.

.48 HOUR FORECAST NEW LOW 34N72W 1015 MB. S OF 34N BETWEEN 68W

AND 74W WINDS TO 25 KT. SEAS TO 2.5 M.

.DENSE FOG. VSBY OCCASIONALLY LESS THAN 1 NM FROM 44N TO 53N

BETWEEN 42W AND 53W...AND N OF 61N BETWEEN 53W AND 62W.

.24 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.

.48 HOUR FORECAST DENSE FOG N OF 49N W OF A LINE FROM 49N49W TO

61N62W TO 67N56W...AND FROM 43N TO 47N BETWEEN 47W AND 59W.

.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 THU JUL 30.

24 HOUR FORECAST VALID 0000 UTC FRI JUL 31.

48 HOUR FORECAST VALID 0000 UTC SAT AUG 1.

.WARNINGS.

.NONE.

.SYNOPSIS AND FORECAST.

.ATLC WITHIN 31N64.5W TO 31N70W TO 30.5N69W TO 30.5N67.5W TO

30.5N66W TO 31N64.5W S TO SW WINDS 20 TO 25 KT. SEAS 2.5 TO

3.0 M.

.24 HOUR FORECAST WITHIN 31N67W TO 31N76W TO 30N76W TO 29N74W TO

30N70W TO 31N67W SW WINDS 20 TO 25 KT. SEAS 2.5 TO 3.0 M.

.48 HOUR FORECAST CONDITIONS IMPROVE. WINDS 20 KT OR LESS. SEAS

LESS THAN 2.5 M.

.ATLC WITHIN 20.5N70.5W TO 20.5N71.5W TO 20.5N72W TO 20N72W TO

20N70.5W TO 20.5N70.5W 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.

.18 HOUR FORECAST WITHIN 20.5N70.5W TO 20.5N71.5W TO 20.5N72W TO

20N72W TO 20N70.5W TO 20.5N70.5W E WINDS 20 TO 25 KT. SEAS LESS

THAN 2.5 M.

.24 HOUR FORECAST WITHIN 21N70W TO 21N71W TO 21N72W TO 20N72W TO

20N70W TO 21N70W E TO SE WINDS 20 TO 25 KT. SEAS 2.5 TO 3.0 M.

.36 HOUR FORECAST CONDITIONS IMPROVE. WINDS 20 KT OR LESS. SEAS

LESS THAN 2.5 M.

.42 HOUR FORECAST WITHIN 20.5N70.5W TO 20.5N71W TO 20.5N71.5W TO

20.5N72W TO 20N72W TO 20N70.5W TO 20.5N70.5W E WINDS 20 TO 25

KT. SEAS LESS THAN 2.5 M.

.48 HOUR FORECAST WITHIN 20N71W TO 21N72W TO 21N73W TO 20N73W TO

20N72W TO 20N71W E WINDS 20 TO 30 KT. SEAS 2.5 M.

.ATLC WITHIN 16N47W TO 17N51W TO 15N55W TO 10N56W TO 11N49W TO

12N46W TO 16N47W WINDS 20 KT OR LESS. SEAS 2.5 TO 3.0 M IN NE TO

E SWELL.

.24 HOUR FORECAST WITHIN 15N54W TO 16N60W TO 13N61W TO 12N59W TO

13N55W TO 15N54W...INCLUDING IN ATLANTIC EXPOSURES AND

PASSAGES...WINDS 20 KT OR LESS. SEAS 2.5 TO 3.0 M

IN NE TO E SWELL.

.36 HOUR FORECAST CONDITIONS IMPROVE. WINDS 20 KT OR LESS. SEAS

LESS THAN 2.5 M.

.CARIBBEAN WITHIN 13N70W TO 15N73W TO 15N75W TO 12N77W TO 11N72W

TO 11N70W TO 13N70W...INCLUDING THE GULF OF VENEZUELA...NE TO E

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

.24 HOUR FORECAST WITHIN 18N72W TO 17N78W TO 11N80W TO 10N65W TO

18N72W...INCLUDING IN MONA PASSAGE AND THE GULF OF VENEZUELA...

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

.48 HOUR FORECAST WITHIN 17N73W TO 17N76W TO 16N82W TO 11N82W TO

09N79W TO 13N69W TO 17N73W...INCLUDING THE GULF OF VENEZUELA...

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

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

.FORECASTER ERA. NATIONAL HURRICANE CENTER.

$$