HSFAT1
HIGH SEAS FORECAST FOR METAREA IV
NWS OCEAN PREDICTION CENTER WASHINGTON DC
2230 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SUPERSEDED BY NEXT ISSUANCE IN 6 HOURS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 1800 UTC OCT 11.
24 HOUR FORECAST VALID 1800 UTC OCT 12.
48 HOUR FORECAST VALID 1800 UTC OCT 13.
.WARNINGS.
...HURRICANE FORCE WIND WARNING...
.COMPLEX LOW WITH MAIN CENTER 59N39W 961 MB MOVING NE
10 KT. WITHIN 180 NM SW QUADRANT...AND WITHIN 120 NM OF THE
SE COAST OF GREENLAND N OF 60N. WINDS 40 TO 55 KT. SEAS 5
TO 8 M. ELSEWHERE WITHIN 480 NM NE...420 NM SE...780 NM SW...
AND 660 NM NW QUADRANTS WINDS 25 TO 40 KT. SEAS 4 TO 7 M.
ALSO N OF 40N E OF 58W WINDS 20 TO 30 KT. SEAS 2.5 TO 5 M.
.12 HOUR FORECAST COMPLEX LOW WITH MEAN CENTER 62N38W
956 MB. N OF 63N E OF GREENLAND WINDS 50 TO 65 KT. SEAS 6
TO 10 M.
.24 HOUR FORECAST COMPLEX LOW WITH MEAN CENTER 62N37W
960 MB. N OF 64N E OF GREENLAND...AND FROM 62N TO 66N
BETWEEN 51W AND 57W...WINDS 40 TO 55 KT. SEAS 5 TO 8.5 M.
ELSEWHERE N OF 55N E OF 64W WINDS 25 TO 40 KT. SEAS 4 TO 7
M. ALSO N OF 51N ACROSS FORECAST WATERS WINDS 20 TO 30 KT.
SEAS 3 TO 6 M.
.48 HOUR FORECAST COMPLEX LOW WITH MEAN CENTER 60N40W
976 MB. WITHIN 360 NM N AND NE...660 NM S AND SW...AND 720
NM W AND NW QUADRANTS WINDS 25 TO 40 KT. SEAS 3 TO 7 M...
HIGHEST NEAR 55N50W. ELSEWHERE N OF 49N OVER FORECAST WATERS
WINDS 20 TO 30 KT. SEAS 2.5 TO 5 M.
...STORM WARNING...
.COMPLEX INLAND LOW WITH MAIN CENTER 47N80W 1008 MB MOVING
NE 25 KT. FROM 35N TO 39N W OF 70W WINDS 25 TO 35 KT. SEAS 2.5
TO 4 M. ELSEWHERE FROM 31N TO 40N W OF 68W WINDS TO 25 KT.
SEAS TO 3 M.
.24 HOUR FORECAST LOW NEAR 42N62W 1001 MB. WITHIN 360 NM
SE AND 480 NM SW QUADRANTS WINDS 30 TO 45 KT. SEAS 3 TO 4.5 M.
ELSEWHERE FROM 31N TO 44N W OF 48W WINDS 20 TO 30 KT. SEAS
2.5 TO 4 M.
.36 HOUR FORECAST LOW 43N49W 992 MB. WITHIN 240 NM S AND SE
QUADRANTS WINDS 35 TO 50 KT. SEAS 4 TO 6.5 M.
.48 HOUR FORECAST COMPLEX LOW WITH MAIN CENTER 48N35W 988 MB.
WITHIN 300 NM SW QUADRANT WINDS 40 TO 55 KT. SEAS 5 TO 7.5
M. ELSEWHERE FROM 36N TO 49N E OF 51W WINDS 25 TO 40 KT.
SEAS 3.5 TO 6.5 M. ALSO FROM 33N TO 49N E OF 64W WINDS 20 TO
30 KT. SEAS 2.5 TO 5 M.
...GALE WARNING...
.12 HOUR FORECAST LOW 49N62W 1002 MB. WITHIN 480 NM SE
QUADRANT WINDS 20 TO 30 KT. SEAS TO 3 M.
.24 HOUR FORECAST LOW 50N49W 995 MB. WITHIN 360 NM
S SEMICIRCLE WINDS 25 TO 35 KT. SEAS 3 TO 4.5 M. ELSEWHERE
WITHIN 600 NM E AND SE...AND 660 NM W AND SW QUADRANTS
WINDS 20 TO 30 KT. SEAS TO 3.5 M.
.48 HOUR FORECAST LOW E OF AREA WITH CONDITIONS DESCRIBED
IN FIRST TWO WARNINGS ABOVE.
.SYNOPSIS AND FORECAST.
.LOW E OF AREA 45N28W 1000 MB MOVING NE 35 KT. EXCEPT
WHERE DESCRIBED WITH LOW 59N39W ABOVE...FROM 31N TO 40N E
OF 50W WINDS 20 TO 30 KT. SEAS 3 TO 5.5 M.
.24 HOUR FORECAST LOW AND ASSOCIATED CONDITIONS E OF AREA.
.DENSE FOG. VSBY OCCASIONALLY LESS THAN 1 NM N OF 60N
WITHIN 120 NM OF THE SE GREENLAND COAST...AND FROM 34N TO
39N W OF 72W.
.24 HOUR FORECAST DENSE FOG N OF 63N E OF GREENLAND...
AND FROM 40N TO 44N W OF 63W.
.48 HOUR FORECAST DENSE FOG N OF 63N E OF GREENLAND.
.LIGHT FREEZING SPRAY N OF 61N W OF 61W.
.24 HOUR FORECAST LITTLE CHANGE.
.48 HOUR FORECAST CONDITIONS IMPROVED.
.FORECASTER MILLS. 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 SUN OCT 11.
24 HOUR FORECAST VALID 1800 UTC MON OCT 12.
48 HOUR FORECAST VALID 1800 UTC TUE OCT 13.
.WARNINGS.
.NONE.
.SYNOPSIS AND FORECAST.
.ATLC 12 HOUR COLD FRONT FROM 31N35W TO 28N55W. FORECAST WITHIN
31N41W TO 31N55W TO 29N55W TO 28N52W TO 30N44W TO 31N41W WINDS 20
KT OR LESS. SEAS 2.5 TO 3.0 M IN N SWELL.
.24 HOUR FORECAST STATIONARY FRONT FROM 34N35W TO 28N55W. WITHIN
31N35W TO 31N51W TO 29N55W TO 26N54W TO 26N51W TO 29N38W TO
31N35W NE TO E WINDS 20 TO 25 KT. SEAS 2.5 TO 3.0 M IN N SWELL.
.48 HOUR FORECAST FRONT DISSIPATED. CONDITIONS IMPROVE. WINDS 20
KT OR LESS. SEAS LESS THAN 2.5 M.
.ATLC AND CARIBBEAN WITHIN 21N72W TO 20N73W TO 19N75W TO 19N74W
TO 20N71W TO 21N72W E WINDS 20 TO 25 KT. SEAS LESS THAN 2.5 M.
.12 HOUR FORECAST CONDITIONS IMPROVE. WINDS LESS THAN 20 KT.
SEAS LESS THAN 2.5 M.
.CARIBBEAN WITHIN 14N68W TO 14N71W TO 14N73W TO 12N74W TO 11N72W
TO 12N69W TO 14N68W...INCLUDING THE GULF OF VENEZUELA... WINDS
20 KT OR LESS. SEAS LESS THAN 2.5 M.
.24 HOUR FORECAST CONDITIONS IMPROVE. WINDS LESS THAN 20 KT.
SEAS LESS THAN 2.5 M.
.REMAINDER OF AREA WINDS 20 KT OR LESS. SEAS LESS THAN 2.5 M.
.FORECASTER CHRISTENSEN. NATIONAL HURRICANE CENTER.
$$