HSFAT1
HIGH SEAS FORECAST FOR METAREA IV
NWS OCEAN PREDICTION CENTER WASHINGTON DC
2230 UTC MON OCT 19 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SUPERSEDED BY NEXT ISSUANCE IN 6 HOURS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 OCT 19.
24 HOUR FORECAST VALID 1800 UTC OCT 20.
48 HOUR FORECAST VALID 1800 UTC OCT 21.
.WARNINGS.
...STORM WARNING...
.COMPLEX LOW WITH MAIN LOW 65N36W 978 MB NEARLY STATIONARY. FROM
55N TO 60N E OF 45W WINDS 40 TO 50 KT. SEAS 5 TO 8 M. ELSEWHERE
FROM 53N TO 60N FROM 45W TO 50W AND FROM 61N TO 65N E OF
GREENLAND WINDS 25 TO 40 KT. SEAS 3 TO 6 M.
.24 HOUR FORECAST COMPLEX LOW WITH MAIN LOW 64N36W 987 MB. N OF
65N E OF GREENLAND AND FROM 50N TO 60N E OF 50W WINDS 25 TO 35
KT. SEAS 2.5 TO 6 M...HIGHEST NEAR 54N35W. ELSEWHERE FROM 60N TO
65N E OF GREENLAND WINDS TO 25 KT. SEAS 2.5 TO 4 M.
.48 HOUR LOW E OF THE AREA 62N33W 985 MB. WITHIN 240 NM S AND SW
OF A LINE FROM 59N35W TO 60N44W TO 61N47W WINDS 30 TO 45 KT. SEAS
4 TO 6.5 M...HIGHEST NEAR 59N38W. ELSEWHERE FROM 53N TO 57N E OF
60W AND FROM 60N TO 62N W OF GREENLAND WINDS 20 TO 30 KT. SEAS
2.5 TO 4 M.
...STORM WARNING...
.LOW 33N72W 1002 MB MOVING N 05 KT. WITHIN 240 NM W AND NW OF A
LINE FROM 33N72W TO 38N67W WINDS 30 TO 40 KT. SEAS 4 TO 7 M.
ELSEWHERE WITHIN 720 NE...180 NM SE...420 NM SW AND 360 NM NW
QUADRANTS WINDS 20 TO 30 KT. SEAS 3 TO 5.5 M IN MIXED SWELL.
.24 HOUR FORECAST LOW 35N71W 1002 MB. WITHIN 300 NM W AND NW OF A
LINE FROM 33N71W TO THE LOW TO 41N63W WINDS 25 TO 35 KT. SEAS 4
TO 6 M. ELSEWHERE WITHIN 720 NM NE...300 NM SW AND 360 NM NW
QUADRANTS WINDS 20 TO 30 KT. SEAS 2.5 TO 4.5 M...HIGHEST
CONDITIONS NW OF CENTER.
.36 HOUR FORECAST LOW 35N69W 1000 MB. BETWEEN 60 NM AND 240 NM NW
SEMICIRCLE WINDS 35 TO 50 KT. SEAS 5 TO 7 M.
.48 HOUR FORECAST LOW 36N69W 996 MB. WITHIN 300 NM NW SEMCIRCLE
WINDS 35 TO 50 KT. SEAS 5 TO 7.5 M. ELSEWHERE WITHIN 540 NM
NE...420 NM SW AND NW QUADRANTS WINDS 25 TO 35 KT. SEAS 3 TO 5.5
M.
...GALE WARNING...
.INLAND LOW 57N77W 1000 MB MOVING E AT 45 KT. WITHIN 120 NM NW OF
A LINE FROM 47N63W TO 52N54W WINDS 25 TO 35 KT. SEAS TO 3.5 M.
.12 HOUR FORECAST LOW 57N51W 1000 MB. WITHIN 420 NM SE SEMICIRCLE
WINDS 25 TO 35 KT. SEAS 3 TO 5 M.
.24 HOUR FORECAST LOW ABSORBED AND CONDITIONS DESCRIBED WITH LOW
64N36W ABOVE.
...GALE WARNING...
.42 HOUR FORECAST NEW LOW 47N38W 1010 MB. WITHIN 180 NM S
SEMICIRCLE WINDS 25 TO 35 KT. SEAS TO 3.5 M.
.48 HOUR FORECAST LOW JUST E OF THE AREA 47N32W 1008 MB. WITHIN
AN AREA BOUNDED BY A LINE FROM 42N35W TO 42N38W TO 44N40W TO
46N35W TO 42N35W WINDS 25 TO 35 KT. SEAS 3 TO 4.5 M.
.SYNOPSIS AND FORECAST.
.DENSE FOG. VSBY OCCASIONALLY LESS THAN 1 NM WITHIN 180 NM NW OF
A LINE FROM 35N67W TO 39N62W...WITHIN 180 NM E OF LABRADOR FROM
54N TO 59N...WITHIN 60 NM W OF GREENLAND N OF 65N AND N OF 65N E
OF GREENLAND.
.24 HOUR FORECAST DENSE FOG WITHIN 120 NM NW OF A LINE FROM
42N57W TO 45N49W...WITHIN 90 NM NW OF A LINE FROM 56N47W TO
59N35W...N OF 63N E OF GREENLAND AND N OF 63N W OF 55W.
.48 HOUR FORECAST DENSE FOG WITHIN 120 NM N OF A LINE FROM 60N64W
TO 58N48W AND N OF 62N E OF GREENLAND.
.LIGHT FREEZING SPRAY N OF 60N W OF GREENLAND.
.24 HOUR FORECAST LITTLE CHANGE.
.48 HOUR FORECAST WITHIN 60 NM W AND E OF GREENLAND FROM 60N TO
62N AND N OF 62N W OF GREENLAND.
.FORECASTER FUTTERMAN. 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 MON OCT 19.
24 HOUR FORECAST VALID 1800 UTC TUE OCT 20.
48 HOUR FORECAST VALID 1800 UTC WED OCT 21.
.WARNINGS.
.NONE.
.SYNOPSIS AND FORECAST.
.ATLC COLD FRONT FROM 31N69W TO 26N72W TO 23N80W. WITHIN 31N69W
TO 31N72W TO 30N71W TO 30N70W TO 30N69W TO 31N69W NW TO N WINDS
20 TO 25 KT. SEAS 4 TO 5 M. ELSEWHERE WITHIN 31N69W TO 31N75W TO
31N81W TO 26N80W TO 25N77W TO 24N74W TO 26N68W TO 31N66W...
INCLUDING IN ATLC EXPOSURES...WINDS 20 KT OR LESS. SEAS 2.5 TO
4 M IN N SWELL.
.24 HOUR FORECAST COLD FRONT FROM 31N70W TO 24N72W AND
STATIONARY TO 22N80W. WITHIN 31N70W TO 31N81W TO 27N80W TO 24N81W
TO 27N78W TO 22N72W TO 23N69W TO 31N70W...INCLUDING IN ATLC
EXPOSURES...WINDS 20 KT OR LESS EXCEPT NE 20 TO 25 KT S OF 27N W
OF 78W...INCLUDING IN THE STRAITS OF FLORIDA. SEAS 2.5 TO 3.5 M
IN N TO NE SWELL.
.48 HOUR FORECAST WEAKENING COLD FRONT FROM 31N68W TO 27N72W
THEN STATIONARY FRONT TO 23N75W TO 22N80W. WITHIN 31N67W TO
31N81W TO 27N79W TO 28N74W TO 26N72W TO 28N69W TO 31N67W WINDS 20
KT OR LESS. SEAS 2.5 TO 4 M IN N TO NE SWELL...HIGHEST N OF 30N
E OF 76W.
.ATLC TROUGH FROM 31N51W TO 27N48W TO 24N42W. WITHIN 28N42W TO
31N45W TO 31N52W TO 29N51W TO 28N49W TO 27N46W TO 28N42W E TO SE
WINDS 20 TO 30 KT. SEAS 2.5 TO 3 M.
.24 HOUR FORECAST TROUGH TO LIFT N OF AREA. WITHIN 31N46W TO
31N54W TO 30N52W TO 30N48W TO 31N46W SE WINDS 20 TO 25 KT. SEAS
2.5 TO 3 M.
.36 HOUR FORECAST WINDS 20 KT OR LESS. SEAS LESS THAN 2.5 M.
.GULF OF AMERICA STATIONARY FRONT FROM 23N80W TO 23N90W TO
18.5N93W. WITHIN 20N95W TO 21N96W TO 21N97W TO 20N97W TO 19N96W
TO 19N95W TO 20N95W...INCLUDING WITHIN 60 NM OF COAST OF
VERACRUZ...NW TO N WINDS 25 TO 30 KT. SEAS 2.5 TO 3.5 M.
ELSEWHERE WITHIN 29N83W TO 26N93W TO 22N96W TO 19N94W TO 22N90W
TO 23N81W TO 29N83W...INCLUDING WITHIN 60 NM OF COAST OF CAMPECHE
AND IN THE STRAITS OF FLORIDA...NE WINDS 20 TO 25 KT. SEAS 2.5
TO 3 M.
.24 HOUR FORECAST STATIONARY FRONT FROM 22N80W TO 22N90W TO
18.5N93W. WITHIN 20N95W TO 21N96W TO 20N97W TO 19N96W TO 18N95W
TO 19N94W TO 20N95W...INCLUDING WITHIN 60 NM OF COAST OF
VERACRUZ...NW TO N WINDS 20 TO 25 KT. SEAS 2.5 TO 3 M. WITHIN
26N82W TO 27N86W TO 24N86.5W TO 22N86W TO 23N81W TO 26N82W...
INCLUDING IN THE STRAITS OF FLORIDA...NE TO E WINDS 20 TO 25 KT.
SEAS TO 2.5 M.
.48 HOUR FORECAST WEAKENING STATIONARY FRONT FROM 22N80W TO
22N90W TO 20N93W. TROUGH FROM 21N95W TO 18N94W. WINDS 20 KT OR
LESS...EXCEPT S OF 20N W OF 95.5W NW WINDS 20 TO 25 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.
$$