HSFAT1
HIGH SEAS FORECAST FOR METAREA IV
NWS OCEAN PREDICTION CENTER WASHINGTON DC
1030 UTC SUN OCT 11 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SUPERSEDED BY NEXT ISSUANCE IN 6 HOURS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).
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 0600 UTC OCT 11.
24 HOUR FORECAST VALID 0600 UTC OCT 12.
48 HOUR FORECAST VALID 0600 UTC OCT 13.
.WARNINGS.
...HURRICANE FORCE WIND WARNING...
.COMPLEX LOW WITH INTENSIFYING FIRST CENTER 58N39W 969 MB MOVING
N 05 KT THEN TURNING E AFTER 12 HOURS AND SECOND CENTER 56N47W
985 MB MOVING SE 20 KT. WITHIN 240 NM E QUADRANT OF FIRST
CENTER...WITHIN 360 NM SW AND 540 NM NW QUADRANTS OF SECOND
CENTER...WITHIN 120 NM NW OF A FRONT FROM SECOND CENTER TO 58N43W
TO 64N38W WINDS 35 TO 45 KT. SEAS 3 TO 6.5 M...HIGHEST NEAR
57N52W. ALSO FROM 37N TO 47N BETWEEN 40W AND 61W...AND N OF 44N E
OF 61W WINDS 25 TO 35 KT. SEAS 2.5 TO 5 M. ELSEWHERE N OF 32N E
OF 64W WINDS TO 25 KT. SEAS TO 3 M.
.06 HOUR FORECAST COMPLEX LOW WITH MAIN CENTER 58N38W 967 MB.
BETWEEN 90 NM AND 240 NM W AND NW QUADRANTS WINDS 35 TO 50 KT.
SEAS 4 TO 7 M.
.24 HOUR FORECAST COMPLEX LOW WITH FIRST CENTER JUST E OF AREA
60N34W 956 MB AND SECOND CENTER 62N37W 959 MB. WITHIN 120 NM OF
NW SEMICIRCLE OF SECOND CENTER WINDS 50 TO 65 KT. SEAS 5 TO 9.5
M. ALSO WITHIN 150 NM NW SEMICIRCLE OF SECOND CENTER...AND WITHIN
240 NM OF THE W GREENLAND COAST N OF 60N WINDS 35 TO 50 KT. SEAS
4 TO 8 M. ELSEWHERE NE OF A LINE FROM 30N40W TO 65N67W WINDS 25
TO 40 KT. SEAS 2.5 TO 5.5 M...HIGHEST W AND SW OF FIRST CENTER.
OTHERWISE N OF 30N E OF 60W WINDS TO 25 KT. SEAS TO 3 M.
.48 HOUR FORECAST COMPLEX LOW WITH MAIN CENTER 52N40W 969 MB. N
OF 64N E OF GREENLAND...AND WITHIN 120 NM EITHER SIDE OF A LINE
FROM 56N50W TO 65N59W WINDS 40 TO 50 KT. SEAS 5 TO 8.5
M...HIGHEST NEAR 58N51W. ELSEWHERE N OF 50N E OF 66W WINDS 25 TO
40 KT. SEAS 3 TO 6.5 M.
...STORM WARNING...
.FROM 32N TO 37N W OF 69W AREA OF SE TO E WINDS 25 TO 35 KT. SEAS
2.5 TO 3.5 M.
.24 HOUR FORECAST NEW LOW INLAND NEAR 39N75W 1006 MB. WITHIN 420
NM NE QUADRANT WINDS 25 TO 35 KT. SEAS 2.5 TO 4.5 M. ELSEWHERE
WITHIN 420 NM E SEMICIRCLE WINDS TO 25 KT. SEAS TO 3 M.
.48 HOUR FORECAST LOW 42N56W 996 MB. WITHIN 240 NM SE SEMICIRCLE
WINDS 35 TO 50 KT. SEAS 4 TO 6 M. ALSO FROM 36N TO 47N E OF 60W
WINDS 25 TO 35 KT. SEAS 2.5 TO 4.5 M. ELSEWHERE S OF 50N E OF
60W...EXCEPT WHERE OTHERWISE DESCRIBE...WINDS TO 25 KT. SEAS TO 3
M.
...GALE WARNING...
.24 HOUR FORECAST NEW LOW INLAND NEAR 50N63W 1000 MB. WITHIN 420
NM SE QUADRANT WINDS 25 TO 35 KT. SEAS 2.5 TO 3.5 M. ELSEWHERE
WITHIN 540 NM SE SEMICIRCLE WINDS TO 25 KT. SEAS TO 3 M.
.42 HOUR FORECAST LOW 50N45W 990 MB. WITHIN 420 NM SE SEMICIRCLE
WINDS 25 TO 40 KT. SEAS 4 TO 6 M.
.48 HOUR FORECAST LOW 51N38W 986 MB. WITHIN 300 NM SE SEMICIRCLE
WINDS 30 TO 45 KT. SEAS 4 TO 6.5 M. ELSEWHERE FROM 43N TO 53N E
OF 43W WINDS 20 TO 30 KT. SEAS 2.5 TO 4.5 M.
.SYNOPSIS AND FORECAST.
.48 HOUR FORECAST NEW LOW NEAR 37N65W 1005 MB. WITHIN 420 NM OF
LOW CENTER WINDS 20 TO 30 KT. SEAS TO 3.5 M.
.DENSE FOG. VSBY OCCASIONALLY LESS THAN 1 NM FROM 55N TO 65N E OF
61W...AND FROM 32N TO 37N W OF 71W.
.24 HOUR FORECAST DENSE FOG N OF 56N E OF 44W...FROM 47N TO 64N W
OF 49W...AND NW OF A LINE FROM 33N74W TO 41N63W.
.48 HOUR FORECAST DENSE FOG WITHIN 90 NM OF E GREENLAND COAST N
OF 60N...FROM 53N TO 61N BETWEEN 40W AND 62W...AND WITHIN 360 NM
EITHER SIDE OF A LINE FROM 36N64W TO 54N35W.
.24 HOUR FORECAST LIGHT FREEZING SPRAY N OF 60N W OF 61W.
.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 11.
24 HOUR FORECAST VALID 0600 UTC MON OCT 12.
48 HOUR FORECAST VALID 0600 UTC TUE OCT 13.
.WARNINGS.
.NONE.
.SYNOPSIS AND FORECAST.
.ATLC 24 HOUR FORECAST WITHIN 31N45W TO 31N55W TO 30N58W TO
29N57W TO 28N51W TO 31N45W WINDS 20 KT OR LESS. SEAS 2.5 TO 3.0
M IN N SWELL.
.48 HOUR FORECAST WITHIN 31N35W TO 31N42W TO 29N46W TO 27N44W TO
27N40W TO 29N35W TO 31N35W WINDS 20 KT OR LESS. SEAS 2.5 TO 3.0
M IN NW TO N SWELL.
.ATLC AND CARIBBEAN WITHIN 20N71W TO 20N74W TO 19N74W TO 20N73W
TO 20N71W E WINDS 20 TO 25 KT. SEAS LESS THAN 2.5 M.
.24 HOUR FORECAST CONDITIONS IMPROVE. WINDS 20 KT OR LESS. SEAS
LESS THAN 2.5 M.
.CARIBBEAN WITHIN 13N74W TO 13N76W TO 12N76W TO 11N75W TO 12N74W
TO 13N74W NE TO E WINDS 20 TO 25 KT. SEAS 2.5 TO 3.0 M.
.24 HOUR FORECAST CONDITIONS IMPROVE. WINDS 20 KT OR LESS. SEAS
LESS THAN 2.5 M.
.30 HOUR FORECAST WITHIN 13N70W TO 14N70W TO 14N71W TO 13N72W TO
12N71W TO 13N70W E WINDS 20 TO 25 KT. SEAS LESS THAN 2.5 M.
.36 HOUR FORECAST CONDITIONS IMPROVE. WINDS 20 KT OR LESS. SEAS
LESS THAN 2.5 M.
.REMAINDER OF AREA WINDS 20 KT OR LESS. SEAS LESS THAN 2.5 M.
.FORECASTER ERA. NATIONAL HURRICANE CENTER.
$$