HSFAT1
HIGH SEAS FORECAST FOR METAREA IV
NWS OCEAN PREDICTION CENTER WASHINGTON DC
2230 UTC WED SEP 30 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SUPERSEDED BY NEXT ISSUANCE IN 6 HOURS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).
FROM OCTOBER 15 TO APRIL 1, DUE TO THE CLIMATOLOGY OF THE NORTH
ATLANTIC AND THE FREQUENCY AND VOLUME OF WEATHER HAZARDS, ALONG
WITH CUSTOMER FEEDBACK, HIGH SEAS FORECASTS WILL BE LIMITED TO
WINDS OF 25 TO 35 KNOTS AND HIGHER, AND SEAS OF 4 METERS OR
GREATER, ALONG WITH FREEZING SPRAY, DENSE FOG, VOLCANIC ASH, AND
ANYTHING TROPICAL (INCLUDING A DEPRESSION). LESSER CONDITIONS
WILL BE INCLUDED FOR WARNING CONDITIONS AND TO PRESERVE
CONTINUITY WHERE APPROPRIATE.
SECURITE
NORTH ATLANTIC NORTH OF 31N TO 67N AND WEST OF 35W
ALL FORECASTS VALID OVER ICE FREE FORECAST WATERS
SYNOPSIS VALID 1800 UTC SEP 30.
24 HOUR FORECAST VALID 1800 UTC OCT 01.
48 HOUR FORECAST VALID 1800 UTC OCT 02.
.WARNINGS.
...GALE WARNING...
.FROM 58N TO 65N BETWEEN 35W AND 38W WINDS 25 TO 40 KT. SEAS 4 TO
6 M. ELSEWHERE N OF 56N BETWEEN 35W AND 39W WINDS 20 TO 30 KT.
SEAS TO 4.5 M.
.24 HOUR FORECAST N OF 59N BETWEEN 35W AND 39W WINDS 20 TO 30 KT.
SEAS 4 TO 7 M.
.48 HOUR FORECAST N OF 64N BETWEEN 35W AND 38W WINDS TO 25 KT.
SEAS TO 3.5 M.
...GALE WARNING...
.LOW 60N43W 1001 MB MOVING SE 20 KT. FROM 45N TO 54N BETWEEN 35W
AND 43W AND WITHIN 180 NM S AND SW OF A LINE FROM 54N40W TO
61N48W WINDS 20 TO 30 KT. SEAS TO 3.5 M.
.06 HOUR FORECAST LOW 60N42W 997 MB. WITHIN 180 NM SW QUADRANT
WINDS 25 TO 35 KT. SEAS TO 3.5 M.
.24 HOUR FORECAST LOW DISSIPATED. FROM 51N TO 59N BETWEEN 35W AND
45W WINDS 20 TO 30 KT. SEAS 3 TO 5.5 M.
.48 HOUR FORECAST CONDITIONS MOVED E OF THE AREA.
.SYNOPSIS AND FORECAST.
.LOW 33N43W 1009 MB MOVING NE 10 KT. FROM 31N TO 38N BETWEEN 37W
AND 46W WINDS 20 TO 30 KT. SEAS TO 3.5 M.
.24 HOUR FORECAST LOW 35N39W 1012 MB. FROM 32N TO 37N BETWEEN 35W
AND 43W WINDS TO 25 KT. SEAS TO 2.5 M.
.48 HOUR FORECAST LOW 35N36W 1016 MB. WINDS LESS THAN 25 KT. SEAS
LESS THAN 2.5 M.
.24 HOUR FORECAST WITHIN 240 NM NE OF A LINE FROM 62N66W TO
59N52W AND FROM 49N TO 58N BETWEEN 45W AND 59W WINDS 20 TO 30 KT.
SEAS TO 3 M.
.48 HOUR FORECAST LOW 63N58W 980 MB. N OF 59N W OF 48W WINDS 20
TO 30 KT. SEAS TO 3 M.
.48 HOUR FORECAST NEW LOW 60N40W 987 MB. WITHIN 420 NM SE OF A
FRONT FROM THE LOW TO 53N56W TO 40N74W WINDS 20 TO 30 KT. SEAS TO
4 M.
.DENSE FOG. VSBY OCCASIONALLY LESS THAN 1 NM FROM 39N TO 43N
BETWEEN 65W AND 71W...FROM 43N TO 53N BETWEEN 45W AND 61W...AND N
OF 61N W OF 63W.
.24 HOUR FORECAST DENSE FOG FROM 40N TO 46N BETWEEN 64W AND
70W.... FROM 47N TO 55N BETWEEN 49W AND 54W...AND W OF A LINE
FROM 60N60W TO 65N63W.
.48 HOUR FORECAST DENSE FOG FROM 40N TO 46N BETWEEN 64W AND
71W...FROM 47N TO 54N BETWEEN 47W AND 55W...AND WITHIN 120 NM NE
OF A LINE FROM 61N51W TO 58N3W.
.FORECASTER COLLINS. 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 WED SEP 30.
24 HOUR FORECAST VALID 1800 UTC THU OCT 1.
48 HOUR FORECAST VALID 1800 UTC FRI OCT 2.
.WARNINGS.
.NONE.
.SYNOPSIS AND FORECAST.
.ATLC WITHIN 30.5N35W TO 31N50.5W TO 30.5N50W TO 30N45W TO
30N35W TO 30.5N35W WINDS 20 KT OR LESS. SEAS 2.5 TO 3.0 M IN N TO
NE SWELL.
.18 HOUR FORECAST CONDITIONS IMPROVE. WINDS 20 KT OR LESS. SEAS
LESS THAN 2.5 M.
.CARIBBEAN WITHIN 13N70W TO 12N72W TO 13N73W TO 12N74W TO 11N71W
TO 12N69W TO 13N70W...INCLUDING THE GULF OF VENEZUELA...NE TO E
WINDS 20 TO 25 KT. SEAS LESS THAN 2.5 M.
.24 HOUR FORECAST LITTLE CHANGE.
.48 HOUR FORECAST LITTLE CHANGE.
.CARIBBEAN 06 HOUR FORECAST WITHIN 17N85W TO 17N86W TO 17N87W TO
16N86W TO 17N86W TO 16N85W TO 17N85W...INCLUDING NEAR THE GULF
OF HONDURAS...E TO SE WINDS 20 TO 25 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 LEWITSKY. NATIONAL HURRICANE CENTER.
$$