HSFAT1
HIGH SEAS FORECAST FOR METAREA IV
NWS OCEAN PREDICTION CENTER WASHINGTON DC
1630 UTC WED APR 22 2026
CCODE/2:31:04:01:00/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SUPERSEDED BY NEXT ISSUANCE IN 6 HOURS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 1200 UTC APR 22.
24 HOUR FORECAST VALID 1200 UTC APR 23.
48 HOUR FORECAST VALID 1200 UTC APR 24.
.WARNINGS.
...HURRICANE FORCE WIND WARNING...
.18 HOUR FORECAST NEW LOW 39N69W 1010 MB. WITHIN 90 NM EITHER
SIDE OF A LINE FROM 35N72W TO 37N68W WINDS 25 TO 35 KT. SEAS TO
3 M.
.24 HOUR FORECAST LOW 39N65W 1005 MB RAPIDLY INTENSIFYING.
WITHIN 90 NM EITHER SIDE OF A LINE FROM 35N67W TO 38N64W WINDS
30 TO 40 KT. SEAS TO 3 M. ELSEWHERE FROM 34N TO 38N BETWEEN 73W
AND 64W WINDS 20 TO 30 KT. SEAS TO 3 M.
.36 HOUR FORECAST LOW 986 MB. WITHIN 60 NM S QUADRANT WINDS 50
TO 65 KT. SEAS 4 TO 5 M.
.48 HOUR FORECAST LOW 42N53W 976 MB. WITHIN 120 NM SW SEMICIRCLE
WINDS 40 TO 55 KT. SEAS 5 TO 9 M. ELSEWHERE FROM 33N TO 45N
BETWEEN 58W AND 47W...AND FROM 35N TO 38N BETWEEN 62W AND
58W...WINDS 30 TO 45 KT. SEAS 3 TO 8 M. ELSEWHERE WITHIN AN AREA
BOUNDED BY A LINE FROM 31N46W TO 52N46W TO 52N51W TO 40N65W TO
31N66W TO 31N46W WINDS 20 TO 30 KT. SEAS 2.5 TO 5 M.
...GALE WARNING...
.LOW 45N53W 1004 MB MOVING N 15 KT. FROM 37N TO 43N BETWEEN 58W
AND 52W WINDS 25 TO 40 KT. SEAS 2.5 TO 5 M. ELSEWHERE WITHIN 300
NM EITHER SIDE OF A LINE FROM 29N63W TO 46N53W...AND BETWEEN A
FRONT FROM LOW CENTER TO 56N50W AND THE NEWFOUNDLAND AND
LABRADOR COAST...WINDS 20 TO 30 KT. SEAS 2.5 TO 4 M.
.24 HOUR FORECAST LOW 51N55W 1002 MB. FROM 47N TO 59N BETWEEN
56W AND 45W WINDS TO 25 KT. SEAS TO 3 M.
.48 HOUR FORECAST LOW DISSIPATED. CONDITIONS ABSORBED BY OTHER
WARNINGS.
...GALE WARNING...
.BETWEEN A FRONT FROM 67N55W TO 62N52W TO 57N48W AND THE W COAST
OF GREENLAND AREA OF S TO SE WINDS 25 TO 35 KT. SEAS 2.5 TO 4 M.
.24 HOUR FORECAST CONDITIONS DIMINISHED.
...GALE WARNING...
.COMPLEX LOW WELL E OF AREA. FROM 43N TO 47N BETWEEN 37W AND 35W
AREA OF N WINDS 25 TO 35 KT. SEAS 3 TO 5 M. ELSEWHERE FROM 31N
TO 56N BETWEEN 40W AND 35W AREA OF NE TO NW WINDS 20 TO 30 KT.
SEAS 2.5 TO 4.5 M.
.24 HOUR FORECAST COMPLEX LOW WELL E OF AREA. WITHIN AN AREA
BOUNDED BY A LINE FROM 31N35W TO 59N35W TO 52N48W TO 39N43W TO
31N35W WINDS 20 TO 30 KT. SEAS 2.5 TO 5 M.
.48 HOUR FORECAST LOW E OF AREA 52N32W 994 MB. WITHIN AN AREA
BOUNDED BY A LINE FROM 49N35W TO 62N35W TO 56N56W TO 49N46W TO
49N35W WINDS 20 TO 30 KT. SEAS 2.5 TO 4 M.
...GALE WARNING...
.18 HOUR FORECAST NEW LOW 39N46W 1004 MB. FROM 33N TO 39N
BETWEEN 50W AND 46W WINDS 25 TO 35 KT. SEAS 2.5 TO 4.5 M.
.24 HOUR FORECAST LOW 39N43W 1002 MB. WITHIN 240 NM SW OF A
FRONT FROM LOW CENTER TO 44N47W WINDS 25 TO 35 KT. SEAS 2.5 TO 5
M. ELSEWHERE WITHIN 360 NM EITHER SIDE OF A LINE FROM 30N56W TO
47N48W WINDS 20 TO 30 KT. SEAS 2.5 TO 4.5 M.
.48 HOUR FORECAST LOW JUST E OF AREA 1002 MB. FROM 31N TO 49N
BETWEEN 46W AND 35W WINDS TO 25 KT. SEAS 2.5 TO 4 M.
.SYNOPSIS AND FORECAST.
.24 HOUR FORECAST W OF A LINE FROM 57N58W TO 66N53W AREA OF NE
WINDS 20 TO 30 KT. SEAS TO 3 M.
.48 HOUR FORECAST FROM 62N TO 67N BETWEEN 57W AND 53W AREA OF N
WINDS 20 TO 30 KT. SEAS TO 3 M.
.48 HOUR FORECAST IN THE GULF OF SAINT LAWRENCE N OF 50N E OF
61W AREA OF NE WINDS 20 TO 30 KT. SEAS TO 2.5 M.
.DENSE FOG. VSBY OCCASIONALLY LESS THAN 1 NM FROM 41N TO 53N
BETWEEN 58W AND 46W...AND WITHIN 90 NM EITHER SIDE OF A LINE
FROM 53N51W TO 58N51W TO 66N55W.
.24 HOUR FORECAST DENSE FOG WITHIN 90 NM EITHER SIDE OF A LINE
FROM 50N52W TO 45N46W...AND NW OF A LINE FROM 58N59W TO 63N50W.
.48 HOUR FORECAST DENSE FOG WITHIN 120 NM EITHER SIDE OF A LINE
FROM 42N56W TO 45N50W...WITHIN 90 NM EITHER SIDE OF A LINE FROM
55N44W TO 51N35W...AND FROM 58N TO 61N BETWEEN 53W AND 45W.
.LIGHT FREEZING SPRAY W OF A LINE FROM 64N55W TO 60N59W TO
55N52W...AND IN THE GULF OF SAINT LAWRENCE NW OF A LINE FROM
47N64W TO 49N58W.
.24 HOUR FORECAST LIGHT FREEZING SPRAY NW OF A LINE FROM 61N60W
TO 66N53W...AND IN THE GULF OF SAINT LAWRENCE N OF 49N E OF 62W.
.48 HOUR FORECAST LIGHT TO MODERATE FREEZING SPRAY WITHIN 90 NM
NW OF A LINE FROM 61N59W TO 64N54W.
.FORECASTER CONNELLY. 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 1200 UTC WED APR 22.
24 HOUR FORECAST VALID 1200 UTC THU APR 23.
48 HOUR FORECAST VALID 1200 UTC FRI APR 24.
.WARNINGS.
.NONE.
.SYNOPSIS AND FORECAST.
.ATLC COLD FRONT FROM 31N55W TO 20N74W. W OF FRONT TO A LINE
FROM
31N62W TO 26N70W TO 26N77W N TO NE WINDS 20 TO 25 KT. SEAS 2.5
TO
3.5 M. ELSEWHERE W OF FRONT TO A LINE FROM 31N64W TO 27N70W TO
26N77W WINDS 20 KT OR LESS. SEAS 2.5 TO 3.0 M IN NE SWELL.
.24 HOUR FORECAST COLD FRONT FROM 31N45W TO 25N55W TO 20N70W. N
OF
29N W OF FRONT TO 50W NW TO N WINDS 20 TO 25 KT. SEAS 2.5 TO 3
M.
ELSEWHERE N OF 27N W OF FRONT 60W WINDS 20 KT OR LESS. SEAS 2.5
TO
3.0 M IN N SWELL.
.48 HOUR FORECAST COLD FRONT FROM 31N37W TO 25N55W THEN
STATIONARY
TO 20N70W. NW OF FRONT TO 46W WINDS 20 KT OR LESS. SEAS 2.5 TO
3.0 M
IN N SWELL. N OF 28N E OF FRONT WINDS 20 KT OR LESS. SEAS 2.5 TO
3 M
IN N SWELL.
.ATLC 12 HOUR FORECAST E OF A LINE FROM 31N37W TO 29N35W WINDS
20 KT
OR LESS. SEAS 2.5 TO 3.0 M IN N SWELL.
.24 HOUR FORECAST WINDS 20 KT OR LESS. SEAS LESS THAN 2.5 M.
.CARIBBEAN N OF 19.5N BETWEEN 77.5W AND 81W NE TO E WINDS 20 TO
25
KT. SEAS LESS THAN 2.5 M.
.12 HOUR FORECAST N OF 19.5N BETWEEN 77.5W AND 81W NE TO E WINDS
20
TO 25 KT. SEAS LESS THAN 2.5 M. N OF 19N BETWEEN 73W AND 76W...
INCLUDING THE WINDWARD PASSAGE...NE WINDS 20 TO 25 KT. SEAS LESS
THAN 2.5 M.
.24 HOUR FORECAST WINDS 20 KT OR LESS. SEAS LESS THAN 2.5 M.
.GULF OF AMERICA FROM 23N TO 25N E OF 87W...INCLUDING STRAITS OF
FLORIDA...E WINDS 20 TO 25 KT. SEAS 2.5 M.
.12 HOUR FORECAST 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.
$$
.FORECASTER GR. NATIONAL HURRICANE CENTER.