HSFAT1
HIGH SEAS FORECAST FOR METAREA IV
NWS OCEAN PREDICTION CENTER WASHINGTON DC
1030 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SUPERSEDED BY NEXT ISSUANCE IN 6 HOURS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 0600 UTC MAY 10.
24 HOUR FORECAST VALID 0600 UTC MAY 11.
48 HOUR FORECAST VALID 0600 UTC MAY 12.
.WARNINGS.
...GALE WARNING...
.LOW 37N72W 1010 MB MOVING NE 20 KT. FROM 37N TO 39N BETWEEN 66W
AND 72W WINDS 25 TO 35 KT. SEAS 2.5 TO 4 M. ELSEWHERE FROM 34N
TO 45N BETWEEN 63W AND 74W WINDS TO 25 KT. SEAS TO 2.5 M.
.24 HOUR FORECAST LOW 39N63W 1016 MB. FROM 37N TO 40N BETWEEN
60W AND 63W WINDS 25 TO 35 KT. SEAS 2.5 TO 3.5 M. ELSEWHERE FROM
35N TO 44N BETWEEN 49W AND 65W WINDS 20 TO 30 KT. SEAS TO 3 M.
.48 HOUR FORECAST LOW DISSIPATED WITH CONDITIONS ABSORBED BY LOW
39N57W IN SYNOPSIS AND FORECAST.
...GALE WARNING...
.12 HOUR FORECAST IN THE GULF OF SAINT LAWRENCE W OF 59W AREA OF
SE WINDS 20 TO 30 KT. SEAS LESS THAN 2.5 M.
.24 HOUR FORECAST INLAND LOW 54N73W 1003 MB. FROM 46N TO 50N
BETWEEN 59W AND 63W AREA OF S TO SE WINDS 25 TO
35 KT. SEAS TO 3 M. ELSEWHERE FROM 44N TO 56N BETWEEN 56W AND
65W WINDS 20 TO 30 KT. SEAS TO 2.5 M.
.48 HOUR FORECAST LOW 62N63W 996 MB. WITHIN 90 NM W OF GREENLAND
FROM 61N TO 64N WINDS 25 TO 35 KT. SEAS 2.5 TO 3.5 M. ELSEWHERE
N OF 53N BETWEEN 47W AND 59W WINDS TO 25 KT. SEAS TO 3
M...HIGHEST NEAR 58N51W.
...GALE WARNING...
.LOW 59N43W 1013 MB MOVING NE 30 KT. FROM 56N TO 63N E OF 48W
AND WITHIN 240 NM E OF A LINE FROM 56N42W TO 43N44W WINDS 20 TO
30 KT. SEAS 2.5 TO 4.5 M.
.12 HOUR FORECAST LOW 65N35W 1008 MB. FROM 59N TO 61N BETWEEN
37W 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 68N31W 994 MB. N OF 58N E OF
43W AREA OF W TO NW WINDS 25 TO 35 KT. SEAS 2.5 TO 4 M.
ELSEWHERE N OF 56N E OF 45W WINDS TO 25 KT. SEAS TO 3 M.
.36 HOUR FORECAST LOW WELL NE OF AREA WITH NEW LOW TO FORM JUST
E OF AREA NEAR 65N31W 992 MB. N OF 59N E OF 41W AREA OF W TO NW
WINDS 25 TO 40 KT. SEAS TO 4 M...HIGHEST NEAR 35W.
.48 HOUR FORECAST LOW WELL E OF AREA. N OF 57N BETWEEN 43W AND
35W WINDS 20 TO 30 KT. SEAS TO 3.5 M.
.SYNOPSIS AND FORECAST.
.LOW 64N53W 1000 MB MOVING N 25 KT. WITHIN 180 NM S SEMICIRCLE
WINDS TO 25 KT. SEAS TO 3 M.
.24 HOUR FORECAST LOW DISSIPATED INLAND...WITH NEW LOW 67N61W
1005 MB. N OF 54N BETWEEN 50W AND 60W WINDS 20 TO 30 KT. SEAS TO
3 M.
.48 HOUR FORECAST CONDITIONS AS DESCRIBED WITH LOW 62N63W IN
SECOND GALE WARNING ABOVE.
.36 HOUR FORECAST NEW LOW 37N62W 1012 MB. WITHIN 180 NM E
SEMICIRCLE WINDS TO 25 KT. SEAS TO 2.5 M.
.48 HOUR FORECAST LOW 39N57W 1011 MB. FROM 34N TO 41N BETWEEN
46W AND 55W WINDS TO 25 KT. SEAS TO 2.5 M.
.DENSE FOG. VSBY OCCASIONALLY LESS THAN 1 NM FROM 31N TO 34N
BETWEEN 71W AND 754W...N OF A LINE FROM 36N75W TO 40N70W...FROM
44N TO 48N BETWEEN 43W AND 49W...AND N OF A LINE FROM 59N42W TO
60N49W TO 64N55W.
.24 HOUR FORECAST DENSE FOG BETWEEN 76W AND A LINE FROM 49N47W
TO 40N65W TO 31N70W...AND N OF 56N W OF 58W.
.48 HOUR FORECAST DENSE FOG FROM 41N TO 51N BETWEEN 42W AND
63W...AND N OF 55N W OF 57W.
.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 0600 UTC SUN MAY 10.
24 HOUR FORECAST VALID 0600 UTC MON MAY 11.
48 HOUR FORECAST VALID 0600 UTC TUE MAY 12.
.WARNINGS.
...CARIBBEAN GALE WARNING...
.CARIBBEAN WITHIN 11.5N74.5W TO 11.5N75.5W TO 11N75.5W TO
11N74.5W TO 11.5N74.5W NE TO E WINDS 30 TO 35 KT. SEAS 3.0 TO 4.0
M. ELSEWHERE WITHIN 15N70W TO 18N72W TO 15N76W TO 11N78W TO
11N70W TO 11N66W TO 15N70W...INCLUDING THE GULF OF VENEZUELA...E
WINDS 20 TO 30 KT. SEAS 2.5 TO 3.5 M. REMAINDER OF AREA WITHIN
18N72W TO 17N79W TO 13N81W TO 10N78W TO 11N74W TO 11N66W TO
18N72W WINDS 20 KT OR LESS. SEAS 2.5 TO 3.0 M IN E TO SE SWELL.
.06 HOUR FORECAST WITHIN 16N72W TO 18N73W TO 13N78W TO 10N76W TO
11N73W TO 11N67W TO 16N72W...INCLUDING THE GULF OF VENEZUELA...E
WINDS 20 TO 30 KT. SEAS 3.0 TO 4.0 M. ELSEWHERE WITHIN 16N72W TO
18N75W TO 15N81W TO 10N80W TO 11N73W TO 11N67W TO 16N72W WINDS
20 KT OR LESS. SEAS 2.5 TO 3.0 M IN E TO SE SWELL.
.18 HOUR FORECAST WITHIN 11.5N74W TO 12N74.5W TO 12N75W TO
11.5N75.5W TO 11N75.5W TO 11N74W TO 11.5N74W NE TO E WINDS 30 TO
35 KT. SEAS 3.0 TO 4.0 M. ELSEWHERE WITHIN 15N71W TO 18N72W TO
15N77W TO 11N76W TO 10N64W TO 12N65W TO 15N71W...INCLUDING THE
GULF OF VENEZUELA...NE TO E WINDS 20 TO 30 KT. SEAS 2.5 TO 3.5 M.
REMAINDER OF AREA WITHIN 15N71W TO 18N72W TO 17N78W TO 11N82W TO
11N73W TO 11N64W TO 15N71W WINDS 20 KT OR LESS. SEAS 2.5 TO 3.0
M IN E SWELL.
.24 HOUR FORECAST LITTLE CHANGE.
.30 HOUR FORECAST WITHIN 15N71W TO 16N74W TO 15N78W TO 11N77W TO
11N73W TO 11N67W TO 15N71W...INCLUDING THE GULF OF VENEZUELA...E
WINDS 20 TO 30 KT. SEAS 3.0 TO 4.0 M. ELSEWHERE WITHIN 17N73W TO
15N81W TO 11N82W TO 10N80W TO 11N74W TO 11N67W TO 17N73W WINDS
20 KT OR LESS. SEAS 2.5 TO 3.5 M IN E SWELL.
.48 HOUR FORECAST WITHIN 14N71W TO 14N76W TO 12N77W TO 10N76W TO
12N72W TO 11N67W TO 14N71W...INCLUDING THE GULF OF VENEZUELA...E
WINDS 20 TO 30 KT. SEAS 2.5 TO 3.0 M. ELSEWHERE WITHIN 14N70W TO
15N73W TO 14N80W TO 11N81W TO 11N71W TO 11N67W TO 14N70W WINDS
20 KT OR LESS. SEAS 2.5 TO 3.0 M IN E SWELL.
.SYNOPSIS AND FORECAST.
.ATLC 12 HOUR FORECAST WITHIN 21N70W TO 21N72W TO 21N73W TO
20N73W TO 20N71W TO 20N70W TO 21N70W E WINDS 20 TO 25 KT. SEAS
LESS THAN 2.5 M.
.24 HOUR FORECAST CONDITIONS IMPROVE. WINDS 20 KT OR LESS. SEAS
LESS THAN 2.5 M.
.36 HOUR FORECAST WITHIN 21N70W TO 21N72W TO 21N73W TO 20N73W TO
20N71W TO 20N70W TO 21N70W E WINDS 20 TO 25 KT. SEAS LESS THAN
2.5 M.
.48 HOUR FORECAST CONDITIONS IMPROVE. WINDS 20 KT OR LESS. SEAS
LESS THAN 2.5 M.
.ATLC 18 HOUR FORECAST WITHIN 10N43W TO 10N50W TO 09N52W TO
06N52W TO 07N42W TO 10N43W WINDS 20 KT OR LESS. SEAS 2.5 M IN NE
SWELL.
.24 HOUR FORECAST LITTLE CHANGE.
.48 HOUR FORECAST WITHIN 14N35W TO 13N47W TO 09N55W TO 06N53W TO
07N35W TO 14N35W WINDS 20 KT OR LESS. SEAS 2.5 TO 3.0 M IN NE
SWELL.
.ATLC 18 HOUR FORECAST WITHIN 31N35W TO 31N38W TO 30N35W TO
31N35W WINDS 20 KT OR LESS. SEAS 2.5 M IN N TO NE SWELL.
.24 HOUR FORECAST LITTLE CHANGE.
.48 HOUR FORECAST LITTLE CHANGE.
.CARIBBEAN WITHIN 18N85W TO 18N86W TO 18N87W TO 16N88W TO 17N86W
TO 16N85W TO 18N85W...INCLUDING THE GULF OF HONDURAS...E TO SE
WINDS 20 TO 30 KT. SEAS 2.5 M.
.24 HOUR FORECAST LITTLE CHANGE.
.48 HOUR FORECAST WITHIN 16.5N84.5W TO 17N85.5W TO 16.5N87W TO
16N87W TO 16N85.5W TO 16N84.5W TO 16.5N84.5W...INCLUDING THE GULF
OF HONDURAS...E TO SE WINDS 20 TO 25 KT. SEAS LESS THAN 2.5 M.
.GULF OF AMERICA 15 HOUR FORECAST WITHIN 23N87W TO 23N89W TO
21N89W TO 21N87W TO 23N87W...INCLUDING IN YUCATAN CHANNEL...E
WINDS 20 TO 25 KT. SEAS LESS THAN 2.5 M.
.24 HOUR FORECAST CONDITIONS IMPROVE. 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 DELGADO. NATIONAL HURRICANE CENTER.