HSFAT1
HIGH SEAS FORECAST FOR METAREA IV
NWS OCEAN PREDICTION CENTER WASHINGTON DC
2230 UTC WED MAY 20 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SUPERSEDED BY NEXT ISSUANCE IN 6 HOURS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).
FOR ANY TROPICAL CYCLONE INFORMATION BEYOND 48 HOURS REFERENCE
THE ASSOCIATED NWS TROPICAL CYCLONE FORECAST/ADVISORY (TCM).
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 20.
24 HOUR FORECAST VALID 1800 UTC MAY 21.
48 HOUR FORECAST VALID 1800 UTC MAY 22.
.WARNINGS.
..STORM WARNING...
.06 HOUR FORECAST LOW 53N62W 991 MB. WITHIN 360 NM SW QUADRANT
WINDS 25 TO 40 KT. SEAS 2.5 TO 4 M.
.24 HOUR FORECAST LOW 54N54W 980 MB. WITHIN 240 NM S
SEMICIRCLE...AND BETWEEN 240 NM AND 540 NM NE QUADRANT WINDS 35
TO 50 KT. SEAS TO 3.5 M...EXCEPT 3.5 TO 6.5 M IN NE QUADRANT.
ELSEWHERE WITHIN 660 NM S SEMICIRLCE...AND WITHIN 540 NM NW
QUADRANT...AND BETWEEN 180 NM AND 600 NM SE QUADRANT. SEAS TO
3.5 M. ALSO WITHIN 720 NM OF LOW CENTER EXCEPT 840 NM SE
QUADRANT WINDS 20 TO 30 KT. SEAS TO 3 M.
.48 HOUR FORECAST LOW 54N41W 980 MB. WITHIN 180 NM NW AND W OF A
LINE FROM 56N46W TO 58N40W TO 63N36W WINDS 40 TO 55 KT. SEAS 4.5
TO 9 M...EXCEPT 3 TO 5 M N OF 60N. ELSEWHERE WITHIN 720 NM W
SEMICIRCLE AND 540 NM SE QUADRANT...AND BETWEEN 180 NM AND 720
NM NE QUADRANT WINDS 25 TO 40 KT. SEAS 3.5 TO 7 M...EXCEPT 2.5
TO 5 M IN NE QUADRANT. ALSO WITHIN 960 NM W SEMICIRCLE...AND 780
NM NE AND 1020 NM SE QUADRANTS WINDS TO 25 KT. SEAS TO 3 M.
...GALE WARNING...
.LOW E OF AREA NEAR 51N28W 982 MB MOVING N 10 KT. WITHIN 720 NM
SE...AND FROM 57N TO 61N BETWEEN 39W AND 47W WINDS 25 TO 40 KT.
SEAS TO 3.5 M...HIGHEST IN SW QUADRANT. ELSEWHERE WITHIN 900 NM
W SEMICIRCLE WINDS TO 25 KT. SEAS 2.5 TO 4 M.
.24 HOUR FORECAST LOW E OF AREA NEAR 54N29W 990 MB. WITHIN 360
NM NW AND 600 NM SW QUADRANTS WINDS 20 TO 30 KT. SEAS TO 3.5 M.
.48 HOUR FORECAST LOW AND CONDITIONS ABSORBED BY LOW 54N42W
DESCRIBED IN STORM WARNING ABOVE.
.SYNOPSIS AND FORECAST.
.LOW 41N546 1008 MB MOVING SE 30 KT. FROM 34N TO 44N BETWEEN 44W
AND 74W WINDS 20 TO 30 KT. SEAS TO 3.5 M.
.24 HOUR FORECAST LOW E OF AREA NEAR 37N33W 1010 MB. WITHIN 480
NM SW QUADRANT WINDS 20 TO 30 KT. SEAS TO 3 M.
.48 HOUR FORECAST LOW AND CONDITIONS DISSIPATED E OF AREA.
.24 HOUR FORECAST FROM 35N TO 40N BETWEEN 44W AND 60W WINDS TO
25 KT. SEAS TO 2.5 M.
.48 HOUR FORECAST CONDITIONS DIMINSHED.
.48 HOUR FORECAST FROM 35N TO 41N BETWEEN 65W AND 76W WINDS 20
T0 30 KT. SEAS TO 2.5 M.
.DENSE FOG. VSBY OCCASIONALLY LESS THAN 1 NM FROM 41N TO 52N
BETWEEN 53W AND 65W AND FROM 55N TO 65N BETWEEN 47W AND 56W.
.24 HOUR FORECAST DENSE FOG FROM 43N TO 49N BETWEEN 43W AND 48W
AND FROM 50N TO 64N BETWEEN 43W AND 61W.
.48 HOUR FORECAST DENSE FOG FROM 50N TO 58N W OF 40W AND FROM
58N TO 64N E OF 43W.
.FORECASTER HOLLEY. 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 WED MAY 20.
24 HOUR FORECAST VALID 1800 UTC THU MAY 21.
48 HOUR FORECAST VALID 1800 UTC FRI MAY 22.
.WARNINGS.
.NONE.
.SYNOPSIS AND FORECAST.
.ATLC WITHIN 31N35W TO 31N45W TO 29N44W TO 28N41W TO 29N35W TO
31N35W WINDS 20 KT OR LESS. SEAS 2.5 TO 3 M IN NW TO N SWELL.
.18 HOUR FORECAST WINDS 20 KT OR LESS. SEAS LESS THAN 2.5 M.
.ATLC WITHIN 21N71W TO 20.5N72W TO 20N72W TO 20N71.5W TO 20N71W
TO 20.5N70.5W TO 21N71W E 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.
.30 HOUR FORECAST WITHIN 21N70W TO 21N72W TO 20N72W TO 20N71W TO
21N70W E WINDS 20 TO 25 KT. SEAS LESS THAN 2.5 M.
.42 HOUR FORECAST WINDS 20 KT OR LESS. SEAS LESS THAN 2.5 M.
.ATLC WITHIN 15N59W TO 13N60W TO 10N58W TO 08N55W TO 08N51W TO
10N51W TO 15N59W WINDS 20 KT OR LESS. SEAS 2.5 TO 3 M IN NE TO E
SWELL.
.12 HOUR FORECAST WINDS 20 KT OR LESS. SEAS LESS THAN 2.5 M.
.CARIBBEAN WITHIN 14N70W TO 14N79W TO 10N79W TO 10N77W TO 12N74W
TO 12N69W TO 14N70W...INCLUDING THE GULF OF VENEZUELA...NE TO E
WINDS 20 TO 25 KT...EXCEPT 25 TO 30 KT S OF 13N. SEAS 2.5 TO 3 M
OUTSIDE GULF OF VENEZUELA.
.24 HOUR FORECAST WITHIN 15N71W TO 15N75W TO 14N78W TO 10N78W TO
12N73W TO 13N68W TO 15N71W...INCLUDING THE GULF OF VENEZUELA...
NE TO E WINDS 20 TO 25 KT. SEAS 2.5 TO 3 M OUTSIDE GULF OF
VENEZUELA.
.48 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 AGUIRRE. NATIONAL HURRICANE CENTER.