HSFAT1
HIGH SEAS FORECAST FOR METAREA IV
NWS OCEAN PREDICTION CENTER WASHINGTON DC
2230 UTC SAT APR 11 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SUPERSEDED BY NEXT ISSUANCE IN 6 HOURS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 11.
24 HOUR FORECAST VALID 1800 UTC APR 12.
48 HOUR FORECAST VALID 1800 UTC APR 13.
.WARNINGS.
...STORM WARNING...
.12 HOUR FORECAST NEW LOW 48N61W 1000 MB. WITHIN 240 NM SW AND W
QUADRANTS WINDS 25 TO 35 KT. SEAS TO 3.5 M.
.24 HOUR FORECAST RAPIDLY INTENSIFYING LOW 49N52W 992 MB. FROM
40N TO 48N BETWEEN 51W AND 60W WINDS 30 TO 40 KT. SEAS 3 TO 6
M...HIGHEST NEAR 46N57W. ELSEWHERE WITHIN 540 NW NW AND W AND
960 NM S QUADRANTS WINDS 20 TO 30 KT. SEAS TO 4 M...HIGHEST SW
AND S OF LOW.
.42 HOUR FORECAST LOW 51N45W 966 MB. WITHIN 240 NM SW QUADRANT
WINDS 35 TO 50 KT. SEAS 5.5 TO 7.5 M. ELSEWHERE FROM 38N TO 51N
BETWEEN 38W AND 54W AND WITHIN 360 NM NW SEMICIRCLE WINDS 25 TO
40 KT. SEAS 4 TO 7 M...HIGHEST NEAR 42N48W.
.48 HOUR FORECAST LOW 51N42W 972 MB. WITHIN 540 NM S AND 360 NM
SW QUADRANTS WINDS 35 TO 50 KT. SEAS 5.5 TO 8.5 M. ALSO FROM 37N
TO 51N BETWEEN 35W AND 52W AND WITHIN 480 NM N AND NW QUADRANTS
WINDS 25 TO 40 KT. SEAS 3 TO 7.5 M...HIGHEST NEAR 42N45W.
ELSEWHERE WITHIN AN AREA BOUNDED BY A LINE FROM 34N35W TO 54N35W
TO 61N35W TO 58N50W TO 54N54W TO 47N54W TO 31N58W TO 31N45W TO
34N35W WINDS 20 TO 30 KT. SEAS 2.5 TO 4.5 M.
...GALE WARNING...
.LOW 42N53W 1002 MB MOVING NE 25 KT. WITHIN 300 NM SE AND 240 NM
S QUADRANTS WINDS 25 TO 35 KT. SEAS 3 TO 4.5 M. ELSEWHERE WITHIN
600 NM SE SEMICIRCLE...300 NM NE AND 240 NM NW AND W QUADRANTS
WINDS 20 TO 30 KT. SEAS TO 3.5 M.
.24 HOUR FORECAST LOW 49N39W 988 MB. FROM 44N TO 48N E OF 46W
AND WITHIN 240 NM NW AND 180 NM NE QUADRANTS WINDS 25 TO 40 KT.
SEAS 3.5 TO 6 M...EXCEPT N OF 49N SEAS 3 TO 4 M. ELSEWHERE
WITHIN AN AREA BOUNDED BY A LINE FROM 38N35W TO 54N35W TO 58N45W
TO 57N53W TO 33N48W TO 38N35W WINDS 20 TO 30 KT. SEAS 2.5 TO 4 M.
.48 HOUR FORECAST LOW AND ASSOCIATED CONDITIONS ABSORBED BY LOW
51N42W DESCRIBED IN STORM WARNING ABOVE.
.SYNOPSIS AND FORECAST.
.LOW 59N41W 1009 MB MOVING E 25 KT. FROM 46N TO 57N BETWEEN 35W
AND 47W 61W AND FROM 60N TO 64N BETWEEN 35W AND 38W WINDS 20 TO
30 KT. SEAS 2.5 TO 4.5 M...HIGHEST NEAR 50N35W.
.24 HOUR FORECAST LOW DISSIPATED E OF AREA. E OF A LINE FROM
58N52W TO 64N35W AREA OF N TO NE WINDS TO 25 KT. SEAS TO 3 M.
.48 HOUR FORECAST CONDITIONS ABSORBED BY LOW 51N42W DESCRIBED IN
STORM WARNING ABOVE.
.48 HOUR FORECAST N OF A LINE FROM 36N75W TO 39N60W AREA OF S TO
SW WINDS 20 TO 30 KT. SEAS TO 3 M...HIGHEST NEAR 43N67W.
.DENSE FOG. VSBY OCCASIONALLY LESS THAN 1 NM BETWEEN 52N AND A
LINE FROM 41N67W TO 47N61W TO 50N52W...FROM 41N TO 46N BETWEEN
42W AND 55W...E OF A LINE FROM 60N43W TO 56N51W TO 55N35W...AND
N OF 63N W OF 54W.
.24 HOUR FORECAST DENSE FOG WITHIN AN AREA BOUNDED BY A LINE
FROM 45N56W TO 49N35W TO 59N48W TO 48N61W TO 45N56W.
.48 HOUR FORECAST DENSE FOG N OF 44N W OF 61W...FROM 43N TO 51N
BETWEEN 38W AND 46W...FROM 47N TO 55N BETWEEN 47W AND 50W...AND
FROM 54N TO 56N E OF 47W.
.LIGHT TO MODERATE FREEZING SPRAY N OF 62N W OF GREENLAND...AND
FROM 57N TO 62N W OF 57W.
.24 HOUR FORECAST LIGHT TO MODERATE FREEZING SPRAY NW OF A LINE
FROM 59N59W TO 62N50W.
.48 HOUR FORECAST LIGHT FREEZING SPRAY N OF 61N W OF 50W.
.FORECASTER BANCROFT. 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 1800 UTC SAT APR 11.
24 HOUR FORECAST VALID 1800 UTC SUN APR 12.
48 HOUR FORECAST VALID 1800 UTC MON APR 13.
.WARNINGS.
.NONE.
.SYNOPSIS AND FORECAST.
.ATLC COLD FRONT FROM 31N60W TO 20N70W. WITHIN 31N62W TO 31N76W
TO 27N79W TO 21N73W TO 24N68W TO 31N62W WINDS 20 KT OR LESS. SEAS
2.5 TO 3.0 M IN NE SWELL.
.24 HOUR FORECAST COLD FRONT FROM 31N57W TO 26N62W...STATIONARY
FRONT TO 20N69W. WITHIN 31N59W TO 31N65W TO 28N76W TO 27N78W TO
22N73W TO 22N70W TO 31N59W NE WINDS 20 TO 25 KT. SEAS 2.5 TO 3.0
M.
.48 HOUR FORECAST COLD FRONT FROM 31N44W TO 25N57W...STATIONARY
FRONT TO 21N72W. WITHIN 28N59W TO 31N50W TO 31N60W TO 25N77W TO
22N74W TO 23N66W TO 28N59W NE TO E WINDS 20 TO 25 KT. SEAS 2.5
TO 3.5 M. ELSEWHERE WITHIN 31N50W TO 31N70W TO 27N78W TO 21N73W
TO 23N64W TO 31N50W WINDS 20 KT OR LESS. SEAS 2.5 TO 3.0 M IN E
SWELL.
.ATLC WITHIN 29N35W TO 26N46W TO 31N50W TO 30N62W TO 06N52W TO
07N35W TO 29N35W WINDS 20 KT OR LESS. SEAS 2.5 TO 3.0 M IN NE TO
E SWELL.
.24 HOUR FORECAST WITHIN 29N35W TO 28N39W TO 15N44W TO 17N56W TO
07N54W TO 07N35W TO 29N35W WINDS 20 KT OR LESS. SEAS 2.5 TO 3.0
M IN NE SWELL.
.48 HOUR FORECAST WITHIN 25N35W TO 23N40W TO 11N56W TO 06N53W TO
12N42W TO 07N35W TO 25N35W WINDS 20 KT OR LESS. SEAS 2.5 M IN NE
SWELL.
.CARIBBEAN WITHIN 12N70W TO 13N72W TO 12N77W TO 09N76W TO 11N74W
TO 11N71W TO 12N70W...INCLUDING THE GULF OF VENEZUELA...NE TO E
WINDS 20 TO 25 KT. SEAS 2.5 TO 3.5 M. ELSEWHERE WITHIN 13N71W TO
14N78W TO 13N80W TO 10N80W TO 11N75W TO 11N70W TO 13N71W WINDS
20 KT OR LESS. SEAS 2.5 TO 3.0 M IN NE TO E SWELL.
.24 HOUR FORECAST LITTLE CHANGE.
.48 HOUR FORECAST LITTLE CHANGE.
.CARIBBEAN 06 HOUR FORECAST WITHIN 20N77W TO 23N82W TO 22N84W TO
18N79W TO 18N74W TO 19N73W TO 20N77W...INCLUDING BETWEEN CUBA
AND JAMAICA...NE WINDS 20 TO 25 KT. SEAS LESS THAN 2.5 M.
.24 HOUR FORECAST LITTLE CHANGE.
.48 HOUR FORECAST LITTLE CHANGE.
.GULF OF AMERICA 06 HOUR FORECAST WITHIN 24N82W TO 24N85W TO
21N92W TO 20N93W TO 22N88W TO 22N85W TO 24N82W NE TO E WINDS 20
TO 25 KT. SEAS LESS THAN 2.5 M.
.24 HOUR FORECAST WITHIN 28N85W TO 26N86W TO 23N92W TO 20N91W TO
22N88W TO 23N81W TO 28N85W E WINDS 20 TO 30 KT. SEAS TO 2.5 M.
.48 HOUR FORECAST LITTLE CHANGE.
.REMAINDER OF AREA WINDS 20 KT OR LESS. SEAS LESS THAN 2.5 M.
$$
.FORECASTER DELGADO. NATIONAL HURRICANE CENTER.