HSFAT1
HIGH SEAS FORECAST FOR METAREA IV
NWS OCEAN PREDICTION CENTER WASHINGTON DC
2230 UTC SUN MAY 10 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SUPERSEDED BY NEXT ISSUANCE IN 6 HOURS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 MAY 10.
24 HOUR FORECAST VALID 1800 UTC MAY 11.
48 HOUR FORECAST VALID 1800 UTC MAY 12.
.WARNINGS.
...GALE WARNING...
.LOW 65N37W 1010 MB MOVING NE 10 KT. FROM 40N TO 64N E OF 48W
WINDS 20 TO 30 KT. SEAS 2.5 TO 4 M.
.06 HOUR FORECAST LOW NE OF AREA. FROM 57N TO 65N BETWEEN 35W AND
44W AREA OF W TO SW WINDS 25 TO 35 KT. SEAS 2.5 TO 4 M.
.24 HOUR FORECAST LOW NE OF AREA 66N29W 991 MB. N OF 57N E OF 43W
AREA OF W TO SW WINDS 25 TO 40 KT. SEAS 2.5 TO 4.5 M.
.48 HOUR FORECAST LOW WELL E OF AREA WITH NEW LOW 63N39W 1016 MB.
WITHIN 180 NM S QUADRANT WINDS TO 25 KT. SEAS TO 2.5 M.
...GALE WARNING...
.06 HOUR FORECAST IN THE GULF OF SAINT LAWRENCE W OF 59W AREA OF
S TO SE WINDS 25 TO 35 KT. SEAS TO 3 M.
.24 HOUR FORECAST INLAND LOW 59N64W 1001 MB. WITHIN 540 NM E
SEMICIRCLE WINDS 25 TO 35 KT. SEAS 2.5 TO 3.5 M.
.48 HOUR FORECAST LOW 62N61W 998 MB. WITHIN 90 NM NE OF A LINE
FROM 66N57W TO 62N53W TO 60N48W WINDS 25 TO 35 KT. SEAS 2.5 TO 4
M. ELSEWHERE N OF 57N BETWEEN 46W AND 60W WINDS TO 25 KT. SEAS TO
3 M.
.SYNOPSIS AND FORECAST.
.LOW 39N68W 1013 MB MOVING NE 20 KT. FROM 36N TO 50N BETWEEN 59W
AND 66W WINDS 20 TO 30 KT. SEAS TO 3.5 M.
.24 HOUR FORECAST LOW 38N62W 1015 MB. WITHIN 240 NM E QUADRANT
WINDS TO 25 KT. SEAS TO 2.5 M.
.48 HOUR FORECAST LOW 44N56W 1006 MB. WITHIN 600 NM E SEMICIRCLE
AND 180 NM NW QUADRANT WINDS 20 TO 30 KT. SEAS TO 3 M.
.N OF 58N BETWEEN 52W AND 62W WINDS TO 25 KT. SEAS TO 2.5 M.
.24 HOUR FORECAST N OF 61N BETWEEN 48W AND 53W WINDS 20 TO 30 KT.
SEAS TO 3 M.
.48 HOUR FORECAST CONDITIONS AS DESCRIBED WITH LOW 63N62W IN
SECOND GALE WARNING ABOVE.
.24 HOUR FORECAST FROM 35N TO 39N W OF 73W WINDS TO 25 KT. SEAS
LESS THAN 2.5 M.
.48 HOUR FORECAST WITHIN 180 NM NW OF A LINE FROM 31N81W TO
34N67W TO 40N62W WINDS 20 TO 30 KT. SEAS TO 3 M.
.DENSE FOG. VSBY OCCASIONALLY LESS THAN 1 NM FROM 39N TO 44N
BETWEEN 66W AND 71W...AND N OF 64N E OF 39W.
.24 HOUR FORECAST DENSE FOG FROM 42N TO 50N BETWEEN 59W AND
66W...AND FROM 60N TO 62N BETWEEN 48W AND 63W.
.48 HOUR FORECAST DENSE FOG FROM 42N TO 53N BETWEEN 43W AND
58W...AND N AND NW OF A LINE FROM 60N62W TO 64N62W TO 66N57W TO
61N49W.
.FORECASTER HYDE. 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 SUN MAY 10.
24 HOUR FORECAST VALID 1800 UTC MON MAY 11.
48 HOUR FORECAST VALID 1800 UTC TUE MAY 12.
.WARNINGS.
...CARIBBEAN GALE WARNING...
.CARIBBEAN WITHIN 13N76W TO 13N77W TO 12N78W TO 11N78W TO 11N76W
TO 11N75W TO 13N76W NE TO E WINDS 25 TO 30 KT. SEAS 3.5 TO 4.5
M. ELSEWHERE...WITHIN 16N74W TO 15N80W TO 10N80W TO 12N73W TO
11N67W TO 12N70W TO 16N74W...INCLUDING THE GULF OF VENEZUELA...NE
TO E WINDS 20 TO 25 KT. SEAS 2.5 TO 3.5 M.
.06 HOUR FORECAST WITHIN 12N74W TO 12N75W TO 11N76W TO 11N75W TO
11N74W TO 12N74W NE WINDS 30 TO 35 KT. SEAS 3.5 TO 4.5 M.
ELSEWHERE...WITHIN 16N74W TO 16N78W TO 15N80W TO 10N81W TO 10N78W
TO 13N69W TO 16N74W...INCLUDING THE GULF OF VENEZUELA... NE TO E
WINDS 20 TO 30 KT. SEAS 2.5 TO 3.5 M.
.18 HOUR FORECAST WITHIN 16N72W TO 16N78W TO 15N80W TO 11N81W TO
10N77W TO 13N70W TO 16N72W NE TO E WINDS 20 TO 30 KT. SEAS 2.5
TO 3.5 M.
.24 HOUR FORECAST WITHIN 16N74W TO 14N80W TO 11N80W TO 10N77W TO
12N74W TO 11N70W TO 16N74W...INCLUDING THE GULF OF
VENEZUELA...NE TO E WINDS 20 TO 30 KT. SEAS 2.5 TO 3.5 M.
.48 HOUR FORECAST WITHIN 12N71W TO 14N77W TO 12N79W TO 11N77W TO
12N75W TO 11N70W TO 12N71W...INCLUDING THE GULF OF
VENEZUELA...NE TO E WINDS 20 TO 25 KT. SEAS 2.5 TO 3.0 M.
.SYNOPSIS AND FORECAST.
.ATLC WITHIN 21N71W TO 21N72W TO 21N73W TO 20N73W TO 20N72W TO
20N70W TO 21N71W E WINDS 20 TO 25 KT. SEAS LESS THAN 2.5 M.
.24 HOUR FORECAST LITTLE CHANGE.
.36 HOUR FORECAST CONDITIONS IMPROVE.
.ATLC 18 HOUR FORECAST WITHIN 10N41W TO 10N42W TO 09N42W TO
09N91W TO 10N41W WINDS 20 KT OR LESS. SEAS 2.5 TO 3.0 M IN NE
SWELL.
.24 HOUR FORECAST LITTLE CHANGE.
.48 HOUR FORECAST WITHIN 12N38W TO 13N45W TO 09N55W TO 06N52W TO
07N42W TO 12N38W WINDS 20 KT OR LESS. SEAS 2.5 TO 3.0 M IN NE
SWELL.
.CARIBBEAN WITHIN 17N85W TO 17N87W TO 16N87W TO 16N86W TO 16N85W
TO 17N85W...INCLUDING THE GULF OF HONDURAS...E WINDS 20 TO 25
KT. SEAS LESS THAN 2.5 M.
.24 HOUR FORECAST LITTLE CHANGE.
.42 HOUR FORECAST CONDITIONS IMPROVE.
.GULF OF AMERICA WITHIN 22N87W TO 23N87W TO 23N88W TO 22N89W TO
21N89W TO 21N87W TO 22N87W E WINDS 20 TO 25 KT. SEAS LESS THAN
2.5 M.
.09 HOUR FORECAST CONDITIONS IMPROVE.
.REMAINDER OF AREA WINDS 20 KT OR LESS. SEAS LESS THAN 2.5 M.
.FORECASTER KONARIK. NATIONAL HURRICANE CENTER.
$$