HSFAT1
HIGH SEAS FORECAST FOR METAREA IV
NWS OCEAN PREDICTION CENTER WASHINGTON DC
0430 UTC WED SEP 23 2026
CCODE/2:31:04:01:00/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SUPERSEDED BY NEXT ISSUANCE IN 6 HOURS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 0000 UTC SEP 23.
24 HOUR FORECAST VALID 0000 UTC SEP 24.
48 HOUR FORECAST VALID 0000 UTC SEP 25.
.WARNINGS.
...HURRICANE FORCE WIND WARNING...
.LOW 49N43W 995 MB MOVING NE 30 KT AND RAPIDLY INTENSIFYING.
WITHIN 180 NM W SEMICIRCLE WINDS 40 TO 50 KT. SEAS 4 TO 6.5 M.
ELSEWHERE FROM 40N TO 3N E OF 60W WINDS 25 TO 40 KT. SEAS 2.5 TO
5.5 M.
.06 HOUR FORECAST LOW 50N40W 986 MB. WITHIN 120 NM W SEMICIRCLE
WINDS 55 TO 65 KT. SEAS 5 TO 7 M.
.18 HOUR FORECAST LOW E OF AREA NEAR 53N34W WITHIN 180 NM SW
SEMICIRCLE WINDS 60 TO 75 KT. SEAS 7 TO 10 M.
.24 HOUR FORECAST LOW 56N29W 964 MB. E OF A LINE FROM 45N50W TO
57N50W TO 67N40W WINDS 25 TO 40 KT. SEAS 2.5 TO 9 M...HIGHEST
NEAR 52N35W.
.48 HOUR FORECAST LOW WELL E OF AREA. E OF A LINE FROM 45N50W TO
57N50W TO 66N35W WINDS 20 TO 30 KT. SEAS 2.5 TO 5 M.
...STORM WARNING...
.LOW 33N72W 1010 MB MOVING NE 15 KT. FROM 35N TO 45N BETWEEN 58W
AND 77W WINDS 25 TO 35 KT. SEAS TO 4.5 M.
.24 HOUR FORECAST LOW 35N69W 1007 MB. WITHIN AN AREA BOUNDED BY A
LINE FROM 31N81W TO 44N73W TO 39N46W TO 31N75W WINDS 25 TO 40 KT.
SEAS 2.5 TO 6.5 M...HIGHEST NW OF CENTER.
.48 HOUR FORECAST LOW 35N69W 1004 MB. WITHIN 180 NM NW OF A LINE
FROM LOW CENTER TO 39N63W WINDS 40 TO 50 KT. SEAS 5 TO 7.5 M.
ELSEWHERE WITHIN AN AREA BOUNDED BY A LINE FROM 31N81W TO 44N73W
TO 38N40W TO 31N81W WINDS 25 TO 40 KT. SEAS 2.5 TO 6.5
M...HIGHEST NW AND W OF CENTER.
...GALE WARNING...
.LOW 61N46W 1002 MB MOVING SE 20 KT. FROM 57N TO 63N E OF 54W
WINDS 25 TO 35 KT. SEAS 2.5 TO 7 M...HIGHEST NEAR 35W.
.24 HOUR FORECAST LOW AND ASSOCIATED CONDITIONS ABSORBED BY LOW
56N29W DESCRIBED ABOVE.
.SYNOPSIS AND FORECAST.
.S OF 34N E OF 39W WINDS 20 TO 30 KT. SEAS TO 3.5 M.
.24 HOUR FORECAST S OF 33N BETWEEN 42W AND 37W WINDS 20 TO 30 KT.
SEAS TO 3 M.
.48 HOUR FORECAST S OF 33N BETWEEN 45W TO 40W WINDS TO 25 KT.
SEAS TO 2.5 M.
.48 HOUR FORECAST NEW LOW 61N57W 997 MB. WITHIN 420 NM S OF A
LINE FROM 56N50W TO 66N67W WINDS 20 TO 30 KT. SEAS TO 3 M.
.24 HOUR FORECAST DENSE FOG. VSBY OCCASIONALLY LESS THAN 1 NM
FROM 59N TO 63N W OF 58W.
.48 HOUR FORECAST CONDITIONS IMPROVED.
.FORECASTER BYRD. 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 0000 UTC WED SEP 23.
24 HOUR FORECAST VALID 0000 UTC THU SEP 24.
48 HOUR FORECAST VALID 0000 UTC FRI SEP 25.
.WARNINGS.
.NONE.
.SYNOPSIS AND FORECAST.
.ATLC LOW PRES...REMNANTS OF FAY...NEAR 30.5N35.5W 1013 MB.
WITHIN 31N35W TO 31N41W TO 29N40W TO 28N37W TO 28N35W TO 31N35W
WINDS 20 TO 30 KT. SEAS 2.5 TO 3.5 M.
.24 HOUR FORECAST LOW PRES NEAR 29.5N39.5W 1014 MB. WITHIN
31N37W TO 31N41W TO 30N41W TO 30N40W TO 29N38W TO 31N37W WINDS 20
TO 25 KT. SEAS 2.5 TO 3.0 M.
.48 HOUR FORECAST LOW PRES NEAR 29.5N42W 1015 MB. WITHIN
31N41.5W TO 31N44.5W TO 30.5N44.5W TO 30N43.5W TO 30N42.5W TO
30.5N41.5W TO 31N41.5W WINDS 20 TO 25 KT. SEAS 2.5 TO 3.0 M.
.ATLC 24 HOUR FORECAST COLD FRONT FROM 31N72W TO 29N81W. WITHIN
31N79.5W TO 31N81.5W TO 30.5N81.5W TO 30N80W TO 31N79.5W NE WINDS
20 TO 25 KT. SEAS LESS THAN 2.5 M.
.48 HOUR FORECAST COLD FRONT FROM 31N73W TO 26N80W. WITHIN
31N79W TO 31N81W TO 31N82W TO 29N81W TO 29N80W TO 31N79W N TO NE
WINDS 20 TO 30 KT. SEAS 2.5 TO 4.0 M. WITHIN 31N68W TO 31N78W TO
28N80W TO 28N76W TO 28N73W TO 31N68W WINDS 20 KT OR LESS. SEAS
2.5 TO 3.5 M IN N TO NE SWELL.
.CARIBBEAN WITHIN 14N70W TO 14N72W TO 13N73W TO 11N73W TO 11N70W
TO 12N69W TO 14N70W...INCLUDING THE GULF OF VENEZUELA...NE TO E
WINDS 20 TO 30 KT. SEAS LESS THAN 2.5 M.
.24 HOUR FORECAST LITTLE CHANGE.
.48 HOUR FORECAST LITTLE CHANGE.
.REMAINDER OF AREA WINDS 20 KT OR LESS. SEAS LESS THAN 2.5 M.
.FORECASTER ERA. NATIONAL HURRICANE CENTER.
$$