FZNT01 KWBC 101542

HSFAT1



HIGH SEAS FORECAST FOR METAREA IV

NWS OCEAN PREDICTION CENTER WASHINGTON DC

1630 UTC SAT OCT 10 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SUPERSEDED BY NEXT ISSUANCE IN 6 HOURS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 1200 UTC OCT 10.

24 HOUR FORECAST VALID 1200 UTC OCT 11.

48 HOUR FORECAST VALID 1200 UTC OCT 12.



.WARNINGS.



...STORM WARNING...

.LOW 53N42W 995 MB MOVING NE 15 KT AND RAPIDLY INTENSIFYING.

EXCEPT WHERE DESCRIBED BELOW...FROM 50N TO 63N E OF 46W WINDS 20

TO 30 KT. SEAS TO 3.5 M IN MIXED SWELL.

.12 HOUR FORECAST LOW 57N39W 978 MB. WITHIN 300 NM SW SEMICIRCLE

WINDS 25 TO 35 KT. SEAS TO 3.5 M.

.24 HOUR FORECAST LOW 58N38W 962 MB. FROM 57N TO 64N BETWEEN 40W

AND 44W AND FROM 51N TO 55N BETWEEN 45W AND 50W WINDS 40 TO 55

KT. SEAS 4 TO 7.5 M. ELSEWHERE N OF 47N W OF 35W WINDS 25 TO 40

KT. SEAS 2.5 TO 5.5 M.

.48 HOUR FORECAST COMPLEX LOW WITH MEAN CENTER NEAR 61N37W 957

MB. FROM 60N TO 66N BETWEEN 51W AND 58W AND WITHIN 90 NM E AND SE

OF GREENLAND COAST N OF 61N WINDS 40 TO 55 KT. SEAS 5.5 TO 8.5 M.

ELSEWHERE N OF 50N W OF 35W AND FROM 40N TO 50N E OF 50W WINDS 25

TO 40 KT. SEAS 2.5 TO 7.5 M...HIGHEST NEAR 56N41W.



...GALE WARNING...

.COMPLEX LOW WITH FIRST CENTER 59N50W 985 MB MOVING SE 20 KT AND

SECOND CENTER 60N40W 996 MB NEARLY STATIONARY. WITHIN 90 NM S AND

SE OF GREENLAND COAST FROM 58N TO 64N WINDS 30 TO 45 KT. SEAS 2.5

 TO 5 M. ELSEWHERE N OF 52N W OF 47W AND N OF 58N BETWEEN 38W AND

47W WINDS 25 TO 35 KT. SEAS 2.5 TO 4.5 M. ALSO...EXCEPT WHERE

DESCRIBED ABOVE...N OF 50N W OF 35W WINDS LESS THAN 25 KT. SEAS

TO 2.5 M.

.24 HOUR FORECAST COMPLEX LOW AND ASSOCIATED CONDITIONS ABSORBED

BY LOW 58N38W DESCRIBED ABOVE.



...GALE WARNING...

.FROM 37N TO 50N BETWEEN 41 AND 69W WINDS 25 TO 35 KT. SEAS TO 4

M.

.24 HOUR FORECAST S OF 47N E OF 60W WINDS 20 TO 30 KT. SEAS 2.5

TO 4.5 M IN MIXED SWELL.

.48 HOUR FORECAST S OF 34N E OF 49W NE WINDS TO 25 KT. SEAS TO 3

M. ELSEWHERE S OF 40N E OF 56W WINDS LESS THAN 25 KT. SEAS TO 3.5

M IN MIXED SWELL.



...GALE WARNING...

.LOW WELL INLAND. S OF 36N W OF 73W AREA OF SE TO E WINDS 20 TO

30 KT. SEAS TO 2.5 M.

.24 HOUR FORECAST LOW WELL INLAND. S OF 39N W OF 68W WINDS 25 TO

35 KT. SEAS TO 4 M.

.48 HOUR FORECAST LOW 41N66W 1002 MB. S OF 42N W OF 58W WINDS 25

TO 35 KT. SEAS TO 4 M.



.SYNOPSIS AND FORECAST.



.FROM 33N TO 44N E OF 44W WINDS 20 TO 30 KT. SEAS 2.5 TO 4.5 M.

ELSEWHERE FROM 34N TO 47N E OF 47W WINDS LESS THAN 25 KT. SEAS TO

2.5 M.

.24 HOUR FORECAST CONDITIONS DESCRIBED ABOVE WITH SECOND GALE

WARNING.



.48 HOUR FORECAST NEW LOW 48N58W 999 MB. FROM 40N TO 50N W OF 50W

WINDS 20 TO 30 KT. SEAS TO 4 M...HIGHEST E.



.DENSE FOG. VSBY OCCASIONALLY LESS THAN 1 NM FROM 47N TO 58N

BETWEEN 38W AND 45W...FROM 60N TO 65N BETWEEN GREENLAND COAST AND

38W....AND FROM 58N TO 62N BETWEEN 50W AND 54W.

.24 HOUR FORECAST DENSE FOG WITHIN 120 NM W AND NW OF A LINE FROM

55N41W TO 60N41W TO 64N38W TO 65N35W AND FROM 63N TO 66N BETWEEN

60W AND 63W.

.48 HOUR FORECAST DENSE FOG FROM 40N TO 42N BETWEEN 66W AND

70W...FROM 49N TO 52N BETWEEN 47W AND 63W...WITHIN 120 NM OF E

GREENLAND COAST...AND WITHIN 120 NM NE OF A LINE FROM 59N49W TO

56N40W.



.FORECASTER JOSEPH. 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 1200 UTC SAT OCT 10.

24 HOUR FORECAST VALID 1200 UTC SUN OCT 11.

48 HOUR FORECAST VALID 1200 UTC MON OCT 12.



.WARNINGS.



.NONE.



.SYNOPSIS AND FORECAST.



.ATLC WITHIN 21N35W TO 19N37W TO 16N39W TO 12N43W TO 10N39W TO

13N35W TO 21N35W WINDS 20 KT OR LESS. SEAS 2.5 TO 3.0 M IN NE

SWELL.

.24 HOUR FORECAST WITHIN 22N35W TO 21N37W TO 19N38W TO 17N37W TO

16N35W TO 22N35W WINDS 20 KT OR LESS. SEAS 2.5 TO 3.0 M IN NE TO

E SWELL.

.36 HOUR FORECAST CONDITIONS IMPROVE. WINDS 20 KT OR LESS. SEAS

LESS THAN 2.5 M.



.ATLC 24 HOUR FORECAST COLD FRONT FROM 31N45W TO 29N55W. WITHIN

31N46W TO 31N61W TO 30N57W TO 30N53W TO 31N46W NE WINDS 20 TO 25

KT. SEAS 2.5 TO 3.0 M IN N TO NE SWELL.

.48 HOUR FORECAST COLD FRONT FROM 31N37W TO 25N55W. WITHIN

31N36W TO 30N55W TO 26N52W TO 27N45W TO 31N36W NE TO E WINDS 20

TO 25 KT. SEAS 2.5 TO 3.0 M IN N SWELL.



.ATLC AND CARIBBEAN 12 HOUR FORECAST WITHIN 21N72W TO 21N74W TO

20N76W TO 19N75W TO 20N73W TO 20N72W TO 21N72W...INCLUDING

THE WINDWARD PASSAGE... NE TO E WINDS 20 TO 25 KT. SEAS LESS

THAN 2.5 M.

.24 HOUR FORECAST LITTLE CHANGE.

.48 HOUR FORECAST CONDITIONS IMPROVE. WINDS 20 KT OR LESS. SEAS

LESS THAN 2.5 M.



.CARIBBEAN WITHIN 13N70W TO 14N72W TO 13N76W TO 10N76W TO 12N73W

TO 11N71W TO 13N70W E WINDS 20 TO 25 KT. SEAS TO 2.5 M.

.24 HOUR FORECAST LITTLE CHANGE.

.48 HOUR FORECAST WITHIN 14N69W TO 14N70W TO 13N71W TO 12N71W TO

13N69W TO 14N69W E TO SE WINDS 20 TO 25 KT. SEAS LESS THAN 2.5

M.



.GULF OF AMERICA POST-TROPICAL CYCLONE ISAIAS INLAND WELL N OF

THE AREA NEAR 32.8N 86.8W 1006 MB AT 1500 UTC OCT 10 MOVING NNW

OR 335 DEG AT 9 KT. WITHIN 27N84W TO 30N84W TO 28N95W TO 26N97W

TO 21N96W TO 21N93W TO 27N84W WINDS 20 KT OR LESS. SEAS 2.5 TO

3.0 M IN NE SWELL.

.24 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 CHRISTENSEN. NATIONAL HURRICANE CENTER.



$$