HSFAT1
HIGH SEAS FORECAST FOR METAREA IV
NWS OCEAN PREDICTION CENTER WASHINGTON DC
2230 UTC THU MAY 21 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SUPERSEDED BY NEXT ISSUANCE IN 6 HOURS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 21.
24 HOUR FORECAST VALID 1800 UTC MAY 22.
48 HOUR FORECAST VALID 1800 UTC MAY 23.
.WARNINGS.
...STORM WARNING...
.COMPLEX LOW WITH MAIN CENTER 54N52W 984 MB MOVING NE 15 KT. FROM
41N TO 62N BETWEEN 38W AND 66W WINDS 25 TO 40 KT. SEAS 2.5 TO 6
M...HIGHEST NEAR 59N50W. ELSEWHERE FROM 43N TO 58N E 38W WINDS
LESS THAN 25 KT. SEAS TO 3 M.
.06 HOUR FORECAST COMPLEX LOW WITH MAIN CENTER 54N49W 983 MB.
FROM 57N TO 60N BETWEEN 44W AND 54W WINDS 35 TO 50 KT. SEAS 3 TO
6 M.
.24 HOUR FORECAST COMPLEX LOW WITH MAIN CENTER 56N40W 983 MB.
BETWEEN 180 NM AND 480 NM S QUADRANT AND WITHIN 180 NM N AND NW
OF A LINE FROM 56N44W TO 62N37W WINDS 35 TO 50 KT. SEAS 3.5 TO 7
M. ELSEWHERE N OF 41N BETWEEN 35W AND 66W WINDS 25 TO 40 KT. SEAS
2.5 TO 5.5 M.
.48 HOUR FORECAST COMPLEX LOW WITH MEAN CENTER 56N40W 983 MB. N
OF 40N E OF 62W WINDS 25 TO 35 KT. SEAS 2.5 TO 6 M...HIGHEST NEAR
59N43W.
.SYNOPSIS AND FORECAST.
.LOW 38N32W 1010 MB MOVING NE 20 KT. S OF 40N E OF 144W WINDS TO
25 KT. SEAS TO 2.5 M.
.24 HOUR FORECAST LOW DISSIPATED E OF AREA. ASSOCIATED CONDITIONS
DIMINISHED.
.24 HOUR FORECAST FROM 36N TO 40N W OF 66W WINDS TO 25 KT. SEAS
TO 2.5 M.
.48 HOUR FORECAST WITHIN 240 NM N OF A LINE FROM 38N75W TO 35N64W
WINDS 20 TO 30 KT. SEAS TO 3 M.
.DENSE FOG. VSBY OCCASIONALLY LESS THAN 1 NM SW OF A LINE FROM
64N59W TO 54N40W AND FROM 43N TO 50N BETWEEN 45W AND 50W.
.24 HOUR FORECAST DENSE FOG FROM 52N TO 62N E OF 43W AND FROM 51N
TO 58N W OF 38W.
.48 HOUR FORECAST DENSE FOG FROM 45N TO 50N BETWEEN 40W AND 50W
AND FROM 53N TO 62N BETWEEN 41W AND 45W.
.FORECASTER JOSEPH. 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 THU MAY 21.
24 HOUR FORECAST VALID 1800 UTC FRI MAY 22.
48 HOUR FORECAST VALID 1800 UTC SAT MAY 23.
.WARNINGS.
.NONE.
.SYNOPSIS AND FORECAST.
.CARIBBEAN WITHIN 14N71W TO 15N73W TO 13N75W TO 12N74W TO 12N72W
TO 12N69W TO 14N71W...INCLUDING IN THE GULF OF VENEZUELA...NE TO
E WINDS 20 TO 25 KT. SEAS TO 2.5 M OUTSIDE GULF OF VENEZUELA.
.24 HOUR FORECAST LITTLE CHANGE.
.48 HOUR FORECAST WITHIN 14N70W TO 14N72W TO 12N73W TO 12N71W TO
11N70W TO 12N69W TO 14N70W...INCLUDING THE GULF OF VENEZUELA...
NE TO E WINDS 20 TO 25 KT...EXCEPT NE WINDS 25 TO 30 KT NEAR AND
IN THE GULF OF VENEZUELA. SEAS TO 2.5 M W OF 72W.
.CARIBBEAN 30 HOUR FORECAST WITHIN 17N85W TO 18N85W TO 17N86W TO
16N86W TO 16N85W TO 17N85W E WINDS 20 TO 25 KT. SEAS LESS THAN
2.5 M.
.48 HOUR FORECAST WINDS 20 KT OR LESS. SEAS LESS THAN 2.5 M.
.GULF OF AMERICA N OF 22N W OF 90W NUMEROUS TSTMS WITH WINDS
LOCALLY HIGHER THAN 20 KT. SEAS LESS THAN 2.5 M.
.12 HOUR FORECAST TSTMS TO WEAKEN. WINDS LESS THAN 20 KT. SEAS
LESS THAN 2.5 M.
.18 HOUR FORECAST N OF 26N W OF 92W NUMEROUS TSTMS WITH WINDS
LOCALLY HIGHER THAN 20 KT. SEAS LESS THAN 2.5 M.
.24 HOUR FORECAST LITTLE CHANGE.
.30 HOUR FORECAST TSTMS TO WEAKEN. WINDS LESS THAN 20 KT. 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.
$$