HSFAT1
HIGH SEAS FORECAST FOR METAREA IV
NWS OCEAN PREDICTION CENTER WASHINGTON DC
1030 UTC SUN OCT 18 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SUPERSEDED BY NEXT ISSUANCE IN 6 HOURS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 OCT 18.
24 HOUR FORECAST VALID 0600 UTC OCT 19.
48 HOUR FORECAST VALID 0600 UTC OCT 20.
.WARNINGS.
...STORM WARNING...
.COMPLEX LOW WITH FIRST CENTER 57N43W 984 MB MOVING NE 15 KT AND
SECOND CENTER 59N38W 980 MB MOVING NE 30 KT. WITHIN 360 NM SE
SEMICIRCLE OF BOTH CENTERS WINDS 40 TO 50 KT. SEAS 4 TO 7.5 M.
ELSEWHERE FROM 44N TO 60N E OF 52W WINDS 25 TO 40 KT. SEAS 3 TO 6
M. OTHERWISE...EXCEPT WHERE OTHERWISE DESCRIBED...FROM 39N TO 60N
E OF 54W WINDS TO 25 KT. SEAS 2.5 TO 4.5 M.
.24 HOUR FORECAST LOW AND CONDITIONS WELL E OF AREA.
...STORM WARNING...
.COMPLEX LOW WITH MAIN CENTER 65N37W 972 MB MOVING NE 05 KT.
BETWEEN 60 NM AND 240 NM SE SEMICIRCLE OF BOTH CENTERS WINDS 30
TO 45 KT. SEAS 5 TO 9.5 M. ELSEWHERE...EXCEPT WHERE OTHERWISE
DESCRIBED...N OF 60N E OF GREENLAND WINDS 20 TO 30 KT. SEAS 3 TO
7 M...HIGHEST ALONG 35W.
.06 HOUR FORECAST COMPLEX LOW WITH MAIN CENTER NEAR 65N38W 970
MB. FROM 57N TO 61N E OF 46W WINDS 40 TO 55 KT. SEAS 4 TO 6 M.
.24 HOUR FORECAST COMBINED LOW 65N36W 972 MB. WITHIN 90 NM EITHER
SIDE OF A LINE FROM 60N43W TO 60N37W TO 64N26W WINDS 40 TO 55 KT.
SEAS 5 TO 9 M. ELSEWHERE FROM 44N TO 65N E OF 65W WINDS 25 TO 40
KT. SEAS 2.5 TO 6 M.
.48 HOUR FORECAST LOW JUST E OF AREA NEAR 64N34W 982 MB. FROM 50N
TO 61N E OF 45W...AND N OF 62N E OF GREENLAND WINDS 25 TO 40 KT.
SEAS 3 TO 7.5 M...HIGHEST NEAR 58N35W.
...STORM WARNING...
.LOW 34N72W 1010 MB DRIFTING SE. WITHIN 240 NM NW SEMICIRCLE
WINDS 35 TO 50 KT. SEAS 4 TO 6 M. ALSO WITHIN 240 NM NW OF A
FRONT FROM 31N76W TO LOW CENTER TO 40N62W WINDS 25 TO 35 KT. SEAS
2.5 TO 4.5 M.
.24 HOUR FORECAST LOW 32N71W 1006 MB. WITHIN 300 NM N AND 240 NM
NW QUADRANTS WINDS 35 TO 50 KT. SEAS 4 TO 7.5 M. ELSEWHERE WITHIN
360 NM N AND W SEMICIRCLES...AND WITHIN 180 NM EITHER SIDE OF A
LINE FROM 38N64W TO 41N47W WINDS 25 TO 35 KT. SEAS 2.5 TO 5 M.
.48 HOUR FORECAST LOW 36N71W 1000 MB. WITHIN 240 NM NW AND W
QUADRANTS WINDS 35 TO 45 KT. SEAS 4 TO 6.5 M. ELSEWHERE S OF 44N
BETWEEN 60W AND 81W WINDS 25 TO 35 KT. SEAS 2.5 TO 5 M...HIGHEST
W OF 66W.
...GALE WARNING...
.48 HOUR FORECAST NEW COMPLEX LOW WITH MAIN CENTER NEAR 58N52W
999 MB. BETWEEN 120 NM AND 780 NM SE QUADRANT WINDS 25 TO 35 KT.
SEAS 2.5 TO 5 M.
.SYNOPSIS AND FORECAST.
.NW OF A LINE FROM 52N55W TO 60N44W AREA OF N TO NW WINDS 20 TO
30 KT. SEAS 2.5 TO 5 M.
.24 HOUR FORECAST CONDITIONS DESCRIBED WITH LOW 65N36W IN WARNING
SECTION ABOVE.
.DENSE FOG. VSBY OCCASIONALLY LESS THAN 1 NM FROM 53N TO 61N W OF
35W...N OF 63N E OF GREENLAND...AND N OF 64N W OF GREENLAND.
.24 HOUR FORECAST DENSE FOG FROM 48N TO 58N E OF 57W...AND N OF
63N E OF GREENLAND.
.48 HOUR FORECAST DENSE FOG N OF 62N W OF 35W...AND FROM 53N TO
59N W OF 38W.
.LIGHT FREEZING SPRAY N OF 61N W OF 60W.
.24 HOUR FORECAST LIGHT FREEZING SPRAY N OF 62N W OF 59W.
.48 HOUR FORECAST LITTLE CHANGE.
.FORECASTER ANDERSON. 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 0600 UTC SUN OCT 18.
24 HOUR FORECAST VALID 0600 UTC MON OCT 19.
48 HOUR FORECAST VALID 0600 UTC TUE OCT 20.
.WARNINGS.
...GALE WARNING...
.ATLC COLD FRONT FROM 31N73W TO 26N80W. WITHIN 31N74W TO 31N81W
TO 27N80W TO 27N78W TO 31N74W N TO NE WINDS 20 TO 30 KT. SEAS 2.5
TO 4.5 M.
.12 HOUR FORECAST COLD FRONT FROM 31N71W TO 24N81W. WITHIN 31N72W
TO 31N74W TO 30.5N73.5W TO 30N73W TO 30N72.5W TO 30.5N72W TO
31N72W NW TO N WINDS 25 TO 35 KT. SEAS 5.5 TO 7.0 M. WITHIN
31N69W TO 31N81W TO 26N80W TO 28N73W TO 31N69W...INCLUDING
ATLANTIC EXPOSURES...N TO NE WINDS 20 TO 30 KT. SEAS 2.5 TO 4.5
M.
.24 HOUR FORECAST STATIONARY FRONT FROM 31N71W TO 24N81W. WITHIN
31N72W TO 31N81W TO 27N80W TO 25N80W TO 27N78W TO 29N75W TO
31N72W N TO NE WINDS 20 TO 30 KT. SEAS 4.0 TO 5.5 M. WITHIN
31N65W TO 31N72W TO 27N78W TO 24N76W TO 26N70W TO
31N65W...INCLUDING ATLANTIC EXPOSURES...WINDS 20 KT OR LESS.
SEAS 2.5 TO 4.5 M IN N SWELL.
.48 HOUR FORECAST DISSIPATING STATIONARY FRONT FROM 31N70W TO
22N78W. WITHIN 31N68W TO 31N81W TO 24N80W TO 25N77W TO 21N71W TO
22N68W TO 31N68W...INCLUDING ATLANTIC EXPOSURES...N TO NE WINDS
20 TO 25 KT. SEAS 2.5 TO 3.0 M.
...GALE WARNING...
.GULF OF AMERICA COLD FRONT FROM 26N81W TO 21N91W THEN STATIONARY
TO 18N94W. WITHIN 20N95W TO 21N96W TO 20N97W TO 19N96W TO
18N94W TO 19N94W TO 20N95W...INCLUDING WITHIN 60 NM OF COAST OF
VERACRUZ...NW TO N WINDS 35 TO 45 KT. SEAS 5.5 TO 7.0 M. WITHIN
26N82W TO 30N84W TO 30N90W TO 25N97W TO 21N97W TO 18N94W TO
26N82W...INCLUDING WITHIN 60 NM OF COAST OF VERACRUZ AND WITHIN
60 NM OF COAST OF CAMPECHE...NE WINDS 20 TO 30 KT. SEAS 2.5 TO
4.5 M.
.24 HOUR FORECAST WITHIN 21N96W TO 21N97W TO 19N96W TO 19N95W
TO 20N95W TO 21N96W...INCLUDING WITHIN 60 NM OF COAST OF
VERACRUZ...NW WINDS 25 TO 35 KT. SEAS 2.5 TO 4.5 M. WITHIN
30N83W TO 29N93W TO 22N97W TO 18N94W TO 22N90W TO 25N82W TO
30N83W...INCLUDING STRAITS OF FLORIDA AND WITHIN 60 NM OF COAST
OF CAMPECHE AND IN YUCATAN CHANNEL...NE TO E WINDS 20 TO 30 KT.
SEAS 2.5 TO 3.0 M.
.30 HOUR FORECAST WITHIN 29N84W TO 27N94W TO 21N97W TO 19N93W
TO 22N90W TO 23N83W TO 29N84W...INCLUDING STRAITS OF FLORIDA AND
WITHIN 60 NM OF COAST OF VERACRUZ AND WITHIN 60 NM OF COAST OF
CAMPECHE...NE WINDS 20 TO 30 KT. SEAS 2.5 TO 3.0 M.
.48 HOUR FORECAST WITHIN 20N94W TO 21N96W TO 20N97W TO 19N96W
TO 18N94W TO 20N94W...INCLUDING WITHIN 60 NM OF COAST OF
VERACRUZ...NW TO N WINDS 20 TO 30 KT. SEAS 2.5 TO 3.0 M. WITHIN
27N85W TO 29N91W TO 22N94W TO 22N86W TO 23N85W TO
27N85W...INCLUDING
STRAITS OF FLORIDA...NE TO E WINDS 20 TO 25 KT. SEAS 2.5 TO 3.0
M.
.SYNOPSIS AND FORECAST.
.ATLC WITHIN 31N38W TO 31N50W TO 29N51W TO 27N47W TO 29N40W TO
31N38W WINDS 20 KT OR LESS. SEAS 2.5 TO 3.0 M IN NW TO N SWELL.
WITHIN 27N37W TO 27N38W TO 28N41W TO 27N41W TO 25N41W TO 25N38W
TO 27N37W E WINDS 20 TO 25 KT. SEAS 2.5 TO 3.0 M IN E SWELL.
.24 HOUR FORECAST WITHIN 29N38W TO 31N38W TO 31N45W TO 30N48W TO
26N46W TO 25N41W TO 29N38W WINDS 20 KT OR LESS. SEAS 2.5 TO 3.0
M IN NW TO N SWELL. WITHIN 31N35W TO 31N36W TO 30N35W TO 31N35W
WINDS 20 KT OR LESS. SEAS 2.5 TO 3.0 M IN NW TO N SWELL.
.42 HOUR FORECAST CONDITIONS IMPROVE. WINDS 20 KT OR LESS. SEAS
LESS THAN 2.5 M.
.ATLC 45 HOUR FORECAST WITHIN 31N45W TO 31N50W TO 30N50W TO
30N47W TO 30N45W TO 31N45W E WINDS 20 TO 25 KT. SEAS 2.5 TO 3.0
M IN E TO SE SWELL.
.48 HOUR FORECAST WITHIN 31N45W TO 31N51W TO 30N51W TO 30N46W TO
30N45W TO 31N45W WINDS 20 KT OR LESS. SEAS 2.5 TO 3.0 M IN E TO
SE SWELL.
.REMAINDER OF AREA WINDS 20 KT OR LESS. SEAS LESS THAN 2.5 M.
.FORECASTER RAMOS. NATIONAL HURRICANE CENTER.
$$