METAREA 4 bulletinset


HIGH SEAS FORECAST
FZNT01 KWBC 230409

HSFAT1

HIGH SEAS FORECAST FOR METAREA IV

NWS OCEAN PREDICTION CENTER WASHINGTON DC

0430 UTC SUN AUG 23 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SUPERSEDED BY NEXT ISSUANCE IN 6 HOURS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 AUG 23.

24 HOUR FORECAST VALID 0000 UTC AUG 24.

48 HOUR FORECAST VALID 0000 UTC AUG 25.

.WARNINGS.

...STORM WARNING...

.COMPLEX LOW WITH MAIN CENTER 62N41W 988 MB MOVING E 10 KT.

WITHIN 90 NM NE OF A LINE FROM 64N33W TO 66N32W TO 67N30W WINDS

35 TO 50 KT. SEAS 3 TO 6 M. ELSEWHERE N OF 60N E OF 35W WINDS 25

TO 35 KT. SEAS 2.5 TO 4.5 M.

.24 HOUR FORECAST COMPLEX LOW WITH MAIN CENTER 62N34W 1002 MB.

WITHIN 180 NM NW SEMICIRCLE WINDS 25 TO 35 KT. SEAS 3 TO 5 M.

ELSEWHERE WITHIN 600 NM SW AND 240 NM N QUADRANTS WINDS 20 TO 30

KT. SEAS 2.5 TO 3.5 M.

.48 HOUR FORECAST COMPLEX LOW WITH MAIN CENTER JUST E OF AREA

NEAR 58N27W 1006 MB. FROM 52N TO 65N E OF 39W WINDS 20 TO 30 KT.

SEAS 2.5 TO 3.5 M.

.SYNOPSIS AND FORECAST.

.N OF 55N BETWEEN 52W AND 60W WINDS 20 TO 30 KT. SEAS 2.5 TO 3.5

M.

.24 HOUR FORECAST CONDITIONS DESCRIBED BY LOW 62N34W IN STORM

WARNING ABOVE.

.LOW 50N37W 1014 MB MOVING NE 30 KT. WITHIN 360 NM SE QUADRANT

WINDS TO 25 KT. SEAS TO 3 M.

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

.24 HOUR FORECAST COMPLEX LOW WITH FIRST CENTER 46N65W 1014 MB.

WITHIN 240 NM NE QUADRANT WINDS 20 TO 30 KT. SEAS TO 3 M.

.48 HOUR FORECAST COMPLEX LOW WITH MEAN CENTER NEAR 48N67W 1008

MB. CONDITIONS DIMINISHED.

.48 HOUR FORECAST NEW LOW NEAR 36N61W 1015 MB. WITHIN 120 NM E

SEMICIRCLE WINDS TO 25 KT. SEAS TO 3 M.

.DENSE FOG. VSBY OCCASIONALLY LESS THAN 1 NM WITHIN 60 NM OF THE

W GREENLAND COAST FROM 61N TO 64N...N OF 64N E OF 36W...AND

WITHIN 60 NM NE OF A LINE FROM 43N49W TO 47N41W.

.24 HOUR FORECAST DENSE FOG FROM 42N TO 49N W OF 60W.

.48 HOUR FORECAST DENSE FOG FROM 43N TO 52N BETWEEN 54W AND 67W.

.FORECASTER HYDE. 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 SUN AUG 23.

24 HOUR FORECAST VALID 0000 UTC MON AUG 24.

48 HOUR FORECAST VALID 0000 UTC TUE AUG 25.

.WARNINGS.

.NONE.

.SYNOPSIS AND FORECAST.

.ATLC AND CARIBBEAN WITHIN 20N73W TO 21N74W TO 20N74W TO 19N74W

TO 20N73W...INCLUDING THE WINDWARD PASSAGE...NE TO E WINDS 20 TO

25 KT. SEAS LESS THAN 2.5 M.

.12 HOUR FORECAST WINDS 20 KT OR LESS. SEAS LESS THAN 2.5 M.

.24 HOUR FORECAST LITTLE CHANGE.

.48 HOUR FORECAST WITHIN 20.5N71W TO 21N71.5W TO 21N72.5W TO

20N72.5W TO 20N72W TO 20N71.5W TO 20.5N71W E WINDS 20 TO 25 KT.

SEAS LESS THAN 2.5 M.

.CARIBBEAN WITHIN 14N73W TO 13N76W TO 12N76W TO 11N75W TO 11N73W

TO 12N72W TO 14N73W NE TO E WINDS 20 TO 25 KT. SEAS TO 2.5 M

W OF 73W.

.24 HOUR FORECAST WITHIN 13N70W TO 13N72W TO 12N74W TO 12N73W TO

12N72W TO 11N70W TO 13N70W...INCLUDING IN THE GULF OF

VENEZUELA...

NE TO E WINDS 20 TO 25 KT. SEAS TO 2.5 M OUTSIDE THE GULF OF

VENEZUELA.

.48 HOUR FORECAST WITHIN 13N69W TO 14N71W TO 14N74W TO 12N75W TO

12N72W TO 11N70W TO 13N69W...INCLUDING IN THE GULF OF

VENEZUELA...NE TO E WINDS 20 TO 25 KT. SEAS LESS THAN 2.5 M.

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

$$

.FORECASTER AGUIRRE. NATIONAL HURRICANE CENTER.