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SUPERSEDED BY NEXT ISSUANCE IN 6 HOURS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.
$$