HSFAT1
HIGH SEAS FORECAST FOR METAREA IV
NWS OCEAN PREDICTION CENTER WASHINGTON DC
1030 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SUPERSEDED BY NEXT ISSUANCE IN 6 HOURS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 0600 UTC MAY 20.
24 HOUR FORECAST VALID 0600 UTC MAY 21.
48 HOUR FORECAST VALID 0600 UTC MAY 22.
.WARNINGS.
...STORM WARNING...
.24 HOUR FORECAST LOW 54N57W 986 MB. WITHIN 240 NM E...300 NM SE
AND 420 NM SW QUADRANTS WINDS 25 TO 35 KT. SEAS TO 3 M.
ELSEWHERE BETWEEN 67W AND A LINE FROM 58N53W TO 52N50W TO 36N50W
WINDS TO 25 KT. SEAS TO 3 M...HIGHEST NEAR 40N58W.
.36 HOUR FORECAST LOW 54N52W 980 MB. FRONT TO EXTEND FROM 58N57W
TO 56N44W. WITHIN 180 NM N AND NE OF FRONT WINDS 30 TO 40 KT.
SEAS 3.5 TO 6 M. ELSEWHERE WITHIN 360 NM SW SEMICIRCLE WINDS 25
TO 35 KT. SEAS TO 3.5 M.
.48 HOUR FORECAST LOW 54N47W 978 MB. FRONT TO EXTEND FROM 56N56W
TO 57N43W TO 60N35W. WITHIN 180 NM NW AND N OF FRONT BETWEEN 42W
AND 58W WINDS 35 TO 50 KT. SEAS 4 TO 6.5 M. ALSO WITHIN 240 NM
NW AND N OF FRONT AND FROM 56N TO 62N BETWEEN 40W AND 47W WINDS
30 TO 45 KT. SEAS 3.5 TO 6 M. ELSEWHERE N OF A LINE FROM 42N35W
TO 42N50W TO 49N67W WINDS 20 TO 30 KT. SEAS TO 4 M.
...GALE WARNING...
.LOW 52N39W 992 MB MOVING SE 05 KT. WITHIN 420 NM SW
SEMICIRCLE...BETWEEN 120 NM AND 540 NM N QUADRANT AND E OF A
LINE FROM 49N49W TO 33N46W WINDS 20 TO 30 KT. SEAS 2.5 TO 4.5
M...HIGHEST NEAR 40N37W.
.06 HOUR FORECAST LOW 51N38W 993 MB. WITHIN 360 NM SW SEMICIRCLE
WINDS 25 TO 35 KT. SEAS 3 TO 4.5 M.
.24 HOUR FORECAST LOW DISSIPATED. FROM 41N TO 61N E OF 42W WINDS
TO 25 KT. SEAS 2.5 TO 4 M.
.48 HOUR FORECAST CONDITIONS AS DESCRIBED WITH STORM WARNING
ABOVE.
...GALE WARNING...
.12 HOUR FORECAST NEW LOW 56N44W 1001 MB. FROM 58N TO 60N
BETWEEN 42W AND 47W WINDS 25 TO 35 KT. SEAS 2.5 TO 3.5 M.
.24 HOUR FORECAST LOW 58N51W 999 MB. FROM 58N TO 61N BETWEEN 43W
AND 52W AREA OF E TO NE WINDS 25 TO 40 KT. SEAS 3 TO 5 M.
ELSEWHERE BETWEEN 62N AND A LINE FROM 55N40W TO 59N54W WINDS 20
TO 30 KT. SEAS TO 4 M.
.36 HOUR FORECAST LOW AND CONDITIONS ABSORBED BY LOW 54N52W IN
STORM WARNING ABOVE.
.SYNOPSIS AND FORECAST.
.LOW 45N57W 1009 MB MOVING SE 35 KT. FROM 39N TO 44N W OF 53W
WINDS TO 25 KT. SEAS TO 2.5 M.
.24 HOUR FORECAST LOW 41N48W 1009 MB. FROM 34N TO 40N BETWEEN
35W AND 50W WINDS TO 25 KT. SEAS TO 3 M.
.48 HOUR FORECAST LOW E OF AREA NEAR 38N30W 1015 MB. FROM 31N TO
40N E OF 52W WINDS LESS THAN 25 KT. SEAS TO 2.5 M.
.DENSE FOG. VSBY OCCASIONALLY LESS THAN 1 NM FROM 43N TO 46N
BETWEEN 54W AND 67W...FROM 52N TO 61N BETWEEN 42W AND 51W...AND
W OF A LINE FROM 60N61W TO 65N56W.
.24 HOUR FORECAST DENSE FOG FROM 42N TO 48N BETWEEN 50W AND
59W...FROM 51N TO 65N BETWEEN 51W AND 65W...AND FROM 57N TO 62N
BETWEEN 43W AND 49W.
.48 HOUR FORECAST DENSE FOG W OF A LINE FROM 52N44W TO 56N45W TO
59N60W TO 63N63W...AND E OF A LINE FROM 56N41W TO 59N35W.
.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 WED MAY 20.
24 HOUR FORECAST VALID 0600 UTC THU MAY 21.
48 HOUR FORECAST VALID 0600 UTC FRI MAY 22.
.WARNINGS.
.NONE.
.SYNOPSIS AND FORECAST.
.ATLC WITHIN 21N71W TO 21N72W TO 20N73W TO 20N71W TO 21N71W E TO
SE WINDS 20 TO 25 KT. SEAS LESS THAN 2.5 M.
.21 HOUR FORECAST CONDITIONS IMPROVE.
.ATLC WITHIN 10N46W TO 11N55W TO 14N60W TO 10N56W TO 07N53W TO
09N47W TO 10N46W...INCLUDING ATLANTIC EXPOSURES...WINDS 20 KT OR
LESS. SEAS 2.5 TO 3.0 M IN NE TO E SWELL.
.15 HOUR FORECAST CONDITIONS IMPROVE.
.ATLC WITHIN 31N35W TO 31N45W TO 30N41W TO 30N37W TO 30N35W TO
31N35W WINDS 20 KT OR LESS. SEAS 2.5 TO 3.0 M IN NW TO N SWELL.
.24 HOUR FORECAST WITHIN 31N35W TO 31N38W TO 31N37W TO 29N35W TO
31N35W WINDS 20 KT OR LESS. SEAS 2.5 TO 3.0 M IN NW TO N SWELL.
.33 HOUR FORECAST CONDITIONS IMPROVE.
.CARIBBEAN WITHIN 15N74W TO 16N77W TO 15N80W TO 11N81W TO 10N77W
TO 13N71W TO 15N74W NE TO E WINDS 20 TO 30 KT. SEAS 2.5 TO 3.5 M.
.24 HOUR FORECAST WITHIN 13N70W TO 15N73W TO 12N79W TO 11N76W TO
13N73W TO 12N70W TO 13N70W...INCLUDING THE GULF OF
VENEZUELA...NE TO E WINDS 20 TO 30 KT. SEAS 2.5 TO 3.5 M.
.48 HOUR FORECAST WITHIN 14N71W TO 15N73W TO 14N73W TO 13N72W TO
11N70W TO 12N69W TO 14N71W...INCLUDING THE GULF OF VENEZUELA...E
WINDS 20 TO 25 KT. SEAS 2.5 TO 3.0 M.
.CARIBBEAN WITHIN 17N86W TO 17N87W TO 16N87W TO 16N86W TO
17N86W...INCLUDING THE GULF OF HONDURAS...E WINDS 20 TO 25 KT.
SEAS LESS THAN 2.5 M.
.06 HOUR FORECAST CONDITIONS IMPROVE.
.REMAINDER OF AREA WINDS 20 KT OR LESS. SEAS LESS THAN 2.5 M.
$$
.FORECASTER KONARIK. NATIONAL HURRICANE CENTER.