METAREA 4 bulletinset


HIGH SEAS FORECAST
FZNT01 KWBC 242138

HSFAT1

HIGH SEAS FORECAST FOR METAREA IV

NWS OCEAN PREDICTION CENTER WASHINGTON DC

2230 UTC FRI APR 24 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SUPERSEDED BY NEXT ISSUANCE IN 6 HOURS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).

SECURITE

NORTH ATLANTIC NORTH OF 31N TO 67N AND WEST OF 35W

ALL FORECASTS VALID OVER ICE FREE FORECAST WATERS

SYNOPSIS VALID 1800 UTC APR 24.

24 HOUR FORECAST VALID 1800 UTC APR 25.

48 HOUR FORECAST VALID 1800 UTC APR 26.

.WARNINGS.

...STORM WARNING...

.LOW 44N51W 981 MB MOVING NE 10 KT. WITHIN 120 NM SW AND S

QUADRANTS WINDS 35 TO 50 KT. SEAS 5.5 TO 8.5 M. ELSEWHERE FROM

39N TO 47N BETWEEN 57W AND 47W...AND FROM 37N TO 45N BETWEEN 47W

AND 43W...WINDS 30 TO 45 KT. SEAS 2.5 TO 8.5 M...HIGHEST WITHIN

180 NM S QUADRANT. ELSEWHERE WITHIN AN AREA BOUNDED BY A LINE

FROM 31N35W TO 50N35W TO 50N51W TO 40N66W TO 31N66W TO 31N35W

WINDS 20 TO 30 KT. SEAS 2.5 TO 6 M.

.24 HOUR FORECAST LOW 47N49W 983 MB. FROM 41N TO 46N BETWEEN 49W

AND 40W WINDS 25 TO 40 KT. SEAS 3 TO 5.5 M. ELSEWHERE WITHIN AN

AREA BOUNDED BY A LINE FROM 31N43W TO 41N35W TO 50N35W TO 50N60W

TO 31N67W TO 31N43W WINDS 20 TO 30 KT. SEAS 2.5 TO 5 M.

.48 HOUR FORECAST LOW 54N45W 983 MB. FROM 51N TO 67N BETWEEN 60W

AND 46W WINDS 30 TO 45 KT. SEAS 2.5 TO 6.5 M. ELSEWHERE FROM 31N

TO 60N BETWEEN 60W AND 35W WINDS 20 TO 30 KT. SEAS 2.5 TO 5 M.

...STORM WARNING...

.42 HOUR FORECAST NEW LOW 63N37W 1002 MB. FROM 64N TO 66N BETWEEN

39W AND 35W WINDS 30 TO 40 KT. SEAS TO 3 M. ELSEWHERE BETWEEN A

FRONT FROM 59N42W TO 64N35W AND THE E COAST OF GREENLAND WINDS 20

TO 30 KT. SEAS TO 2.5 M.

.48 HOUR FORECAST LOW JUST E OF AREA 65N33W 998 MB. N OF 64N

BETWEEN 38W AND 35W WINDS 40 TO 50 KT. SEAS 3 TO 4.5 M. ELSEWHERE

BETWEEN A LINE FROM 59N41W TO LOW CENTER AND THE E COAST OF

GREENLAND WINDS 25 TO 40 KT. SEAS 2.5 TO 4 M.

...GALE WARNING...

.LOW 52N36W 998 MB MOVING W 15 KT. WITHIN 60 NM EITHER SIDE OF A

LINE FROM 58N46W TO 60N42W AREA OF NE WINDS 30 TO 40 KT. SEAS 3

TO 4 M. ELSEWHERE WITHIN AN AREA BOUNDED BY A LINE FROM 50N35W TO

63N35W TO 58N60W TO 50N51W TO 50N35W WINDS 20 TO 30 KT. SEAS 2.5

TO 4.5 M.

.24 HOUR FORECAST LOW 51N45W 994 MB. FROM 50N TO 62N BETWEEN 50W

AND 35W WINDS 20 TO 30 KT. SEAS 2.5 TO 4 M.

.48 HOUR FORECAST CONDITIONS LOW AND ASSOCIATED CONDITIONS

ABSORBED BY LOW 54N45W DESCRIBED IN FIRST STORM WARNING ABOVE.

...GALE WARNING...

.18 HOUR FORECAST NEW LOW NEAR 40N45W 998 MB. WITHIN 60 NM EITHER

SIDE OF A LINE FROM 37N46W TO 40N43W AREA OF SW WINDS 30 TO 40

KT. SEAS 4 TO 5 M.

.24 HOUR FORECAST LOW 43N40W 997 MB. FROM 41N TO 46N BETWEEN 40W

AND 37W WINDS 25 TO 35 KT. SEAS 3 TO 5 M.

.48 HOUR FORECAST CONDITIONS LOW AND ASSOCIATED CONDITIONS

ABSORBED BY LOW 54N45W DESCRIBED IN FIRST STORM WARNING ABOVE.

...GALE WARNING...

.FROM 63N TO 67N BETWEEN 58W AND 52W AREA OF N WINDS 20 TO 30 KT.

SEAS TO 3 M.

.24 HOUR FORECAST FROM 50N TO 67N BETWEEN 60W AND 50W AREA OF N

WINDS 25 TO 35 KT. SEAS 2.5 TO 4.5 M.

.30 HOUR FORECAST FROM 61N TO 67N BETWEEN 56W AND 50W AREA OF N

WINDS 25 TO 35 KT. SEAS 2.5 TO 4.5 M.

.48 HOUR FORECAST CONDITIONS LOW AND ASSOCIATED CONDITIONS

ABSORBED BY LOW 54N45W DESCRIBED IN FIRST STORM WARNING ABOVE.

...GALE WARNING...

.30 HOUR FORECAST WITHIN 120 NM EITHER SIDE OF A LINE FROM 33N55W

TO 37N50W AREA OF NW WINDS 25 TO 35 KT. SEAS 3 TO 4 M.

.48 HOUR FORECAST LOW 47N36W 996 MB. FROM 42N TO 47N BETWEEN 37W

AND 35W WINDS 25 TO 40 KT. SEAS 4 TO 5.5 M.

...GALE WARNING...

.24 HOUR FORECAST WITHIN 300 NM NE OF A FRONT FROM 37N77W TO

43N71W AREA OF E WINDS TO 25 KT. SEAS LESS THAN 2.5 M.

.48 HOUR FORECAST LOW 38N72W 1010 MB. FROM 36N TO 40N BETWEEN 75W

AND 68W WINDS 25 TO 35 KT. SEAS TO 3.5 M.

...HEAVY FREEZING SPRAY WARNING...

.LIGHT FREEZING SPRAY NW OF A LINE FROM 61N57W TO 67N54W.

.24 HOUR FORECAST LIGHT TO MODERATE FREEZING SPRAY NW OF A LINE

FROM 60N58W TO 67N52W.

.48 HOUR FORECAST MODERATE TO HEAVY FREEZING SPRAY NW OF A LINE

FROM 60N58W TO 67N52W. ELSEWHERE LIGHT TO MODERATE FREEZING SPRAY

NW OF A LINE FROM 59N60W TO 60N46W.

.SYNOPSIS AND FORECAST.

.DENSE FOG. VSBY OCCASIONALLY LESS THAN 1 NM FROM 44N TO 52N

BETWEEN 57W AND 50W...IN THE GULF OF SAINT LAWRENCE N OF

49N...WITHIN 240 NM EITHER SIDE OF A LINE FROM 51N50W TO

58N33W...AND WITHIN 60 NM OF THE W COAST OF GREENLAND FROM 59N TO

62N.

.24 HOUR FORECAST DENSE FOG FROM 44N TO 49N BETWEEN 56W AND

47W...AND WITHIN 180 NM EITHER SIDE OF A LINE FROM 52N53W TO

59N35W.

.48 HOUR FORECAST DENSE FOG WITHIN 90 NM EITHER SIDE OF A LINE

FROM 50N52W TO 45N48W...WITHIN 120 NM EITHER SIDE OF A LINE FROM

55N45W TO 65N36W...AND WITHIN 60 NM EITHER SIDE OF A LINE FROM

36N76W TO 39N72W.

.FORECASTER CONNELLY. 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 1800 UTC FRI APR 24.

24 HOUR FORECAST VALID 1800 UTC SAT APR 25.

48 HOUR FORECAST VALID 1800 UTC SUN APR 26.

.WARNINGS.

.NONE.

.SYNOPSIS AND FORECAST.

ATLC COLD FRONT FROM 31N37W TO 26N48W. N OF FRONT AND E OF 46W

WINDS

20 KT OR LESS. SEAS 2.5 TO 3.0 M IN NW SWELL. N OF 27N E OF FRONT

WINDS 20 KT OR LESS. SEAS 2.5 TO 3.0 M IN NE SWELL.

.12 HOUR FORECAST COLD FRONT FROM 28N35W TO 25N43W. N OF FRONT

AND E

OF 47W WINDS 20 KT OR LESS. SEAS 2.5 TO 3.0 M IN N SWELL.

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

.ATLC N OF 30N BETWEEN 52W AND 63W WINDS 20 KT OR LESS. SEAS 2.5

TO

3.0 M IN NW SWELL.

.24 HOUR FORECAST N OF 30N BETWEEN 50W AND 62W SW TO W WINDS 20

TO

25 KT. SEAS 2.5 TO 3.0 M. ELSEWHERE N OF A LINE FROM 31N43W TO

27N50W TO 29N55W TO 31N62W WINDS 20 KT OR LESS. SEAS 2.5 TO 3.0 M

IN

NW SWELL.

.48 HOUR FORECAST N OF A LINE FROM 31N40W TO 29N50W TO 31N55W

WINDS

20 KT OR LESS. SEAS 2.5 TO 3.0 M IN NW SWELL.

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

.FORECASTER GR. NATIONAL HURRICANE CENTER.

$$