North Atlantic High Seas Forecast

FZNT01 KWBC 120443 CCA
HSFAT1

HIGH SEAS FORECAST FOR METAREA IV 
NWS OCEAN PREDICTION CENTER WASHINGTON DC 
0430 UTC SUN OCT 12 2025 

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SUPERSEDED BY NEXT ISSUANCE IN 6 HOURS 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 0000 UTC OCT 12. 
24 HOUR FORECAST VALID 0000 UTC OCT 13. 
48 HOUR FORECAST VALID 0000 UTC OCT 14. 

.WARNINGS. 

...STORM WARNING... 
.LOW 32N77W 995 MB MOVING NE 05 KT. WITHIN 120 NM W SEMICIRCLE 
WINDS 35 TO 50 KT. SEAS 4 TO 6 M. ALSO FROM 31N TO 35N W OF 77W 
AND FROM 35N TO 39N W OF 63W WINDS 25 TO 40 KT. SEAS 3 TO 5.5 
M...HIGHEST NEAR 35N75W. ELSEWHERE S OF 42N W OF 55W WINDS 20 TO 
30 KT. SEAS 2.5 TO 4.5 M.
.24 HOUR FORECAST COMPLEX LOW WITH FIRST LOW 34N76W 999 MB AND 
NEW SECOND LOW 38N73W 1000 MB. FROM 39N TO 42N BETWEEN 67W AND 
75W WINDS 35 TO 50 KT. SEAS 4.5 TO 8 M. ELSEWHERE FROM 38N TO 
43N W OF 59W AND WITHIN 180 NM W SEMICIRCLE OF SECOND LOW WINDS 
25 TO 40 KT. SEAS 3 TO 6 M. ALSO S OF 35N W OF 71W AND FROM 36N 
TO 44N W OF 57W WINDS 20 TO 30 KT. SEAS TO 4 M. 
.48 HOUR FORECAST COMPLEX LOW WITH MAIN LOW 38N73W 1004 MB. 
FRONT TO EXTEND FROM LOW TO 41N68W TO 34N58W. WITHIN 240 NM N OF 
FRONT WINDS 20 TO 30 KT. SEAS 4 TO 6 M. ELSEWHERE N OF 32N W OF 
73W AND WITHIN 300 NM N OF FRONT WINDS TO 25 KT. SEAS 2.5 TO 4.5 
M.

...STORM WARNING...
.LOW 47N35W 990 MB MOVING N 20 KT THEN TURNING NW AFTER 12 
HOURS. WITHIN 120 NM S AND SW SEMICIRCLES WINDS 40 TO 55 KT. 
SEAS 5.5 TO 7.5 M. ELSEWHERE WITHIN 240 NM WINDS 25 TO 40 KT. 
SEAS 3 TO 5.5 M.
.24 HOUR FORECAST LOW 54N38W 982 MB. WITHIN 180 NM E AND SE AND 
300 NM W AND SW QUADRANTS WINDS 35 TO 50 KT. SEAS6 M.
.48 HOUR FORECAST LOW 50N41W 984 MB. WITHIN 300 NM NW AND 240 NM 
SW QUADRANTS WINDS 35 TO 50 KT. SEAS 5.5 TO 8.5 M. ELSEWHERE 
FROM 43N TO 58N BETWEEN 36W AND 50W WINDS 25 TO 40 KT. SEAS 3.5 
TO 7 M...HIGHEST W AND SW OF LOW. 

...STORM WARNING...
.24 HOUR FORECAST INLAND LOW 67N77W 980 MB. NW AND N OF A LINE 
FROM 60N63W TO 64N53W WINDS 20 TO 30 KT, SEAS TO TO 3 M.
.36 HOUR FORECAST LOW NW OF AREA 70N72W 980 MB. N OF 65N W OF 
GREENLAND WINDS 40 TO 50 KT. SEAS 3.5 TO 6 M.
.48 HOUR FORECAST LOW N OF AREA. N OF 63N BETWEEN GREENLAND AND 
56W AREA OF S WINDS 25 TO 40 KT. SEAS 3 TO 5 M. ELSEWHERE N OF 
61N BETWEEN GREENLAND AND 61W WINDS 20 TO 30 KT. SEAS TO 3 M.

...GALE WARNING... 
.LOW 64N38W 999 MB MOVING NE 20 KT. N OF 64N E OF GREENLAND AND 
WITHIN 90 NM W QUADRANT WINDS 25 TO 40 KT. SEAS 3 TO 5.5 M. 
ELSEWHERE N OF 57N E OF 42W WINDS TO 25 KT. SEAS 3 TO 5 
M...HIGHEST NEAR 60N35W.
.24 HOUR FORECAST LOW NE OF AREA. CONDITIONS DIMINISHED. 

...GALE WARNING... 
.LOW 66N61W 988 MB MOVING NE 10 KT. WITHIN 420 NM S QUADRANT 
WINDS 25 TO 35 KT. SEAS 2.5 TO 4 M. ELSEWHERE N OF 57N W OF 50W 
WINDS TO 25 KT. SEAS TO 3 M.
.24 HOUR FORECAST LOW N OF AREA WITH CONDITIONS AS DESCRIBED 
WITH INLAND LOW 67N77W ABOVE.

...GALE WARNING...
.06 HOUR FORECAST NEW LOW 51N47W 998 MB. WITHIN 360 NM W 
SEMICIRCLE WINDS 25 TO 40 KT. SEAS 2.5 TO 5 M.
.24 HOUR FORECAST LOW AND CONDITIONS ABSORBED BY LOW 54N38W IN 
STORM WARNING ABOVE.

...GALE WARNING... 
.24 HOUR FORECAST LOW 32N61W 1007 MB. FROM 31N TO 34N BETWEEN 
57W AND 62W WINDS 25 TO 35 KT. SEAS 3 TO 5.5 M. 
.48 HOUR FORECAST LOW 32N55W 1005 MB. FROM 31N TO 34N BETWEEN 
47W AND 58W WINDS 20 TO 30 KT. SEAS 2.5 TO 4 M. 

.SYNOPSIS AND FORECAST. 

.DENSE FOG. VSBY OCCASIONALLY LESS THAN 1 NM BETWEEN GREENLAND 
AND A LINE FROM 60N50W TO 64N53W TO 67N57W. 
.24 HOUR FORECAST DENSE FOG FROM 57N TO 57N E OF 40W...AND FROM 
61N TO 65N BETWEEN 59W AND 63W.
.48 HOUR FORECAST CONDITIONS IMPROVED. 

.FORECASTER BANCROFT. OCEAN PREDICTION CENTER.

NATIONAL HURRICANE CENTER MIAMI FL

ATLANTIC FROM 07N TO 31N W OF 35W INCLUDING CARIBBEAN SEA AND
GULF OF AMERICA

SYNOPSIS VALID 0000 UTC SUN OCT 12.
24 HOUR FORECAST VALID 0000 UTC MON OCT 13.
48 HOUR FORECAST VALID 0000 UTC TUE OCT 14.

.WARNINGS.

...ATLC GALE WARNING...
.ATLC REMNANTS OF JERRY NEAR 27N63W 1006 MB. WITHIN 30N61W TO 
30N62W TO 29N61W TO 27N61W TO 28N61W TO 30N61W WINDS 30 TO 35 
KT. SEAS 4.5 TO 5.5 M. ELSEWHERE WITHIN 29N59W TO 31N59W TO 
29N61W TO 30N63W TO 28N63W TO 25N62W TO 29N59W WINDS 20 TO 30 
KT. SEAS 3.5 TO 5 M. REMAINDER OF AREA WITHIN 28N56W TO 31N49W TO
31N70W TO 22N70W TO 22N60W TO 28N56W WINDS 20 KT OR LESS. SEAS 
2.5 TO 4 M IN S SWELL.
.18 HOUR FORECAST LOW DISSIPATED. WITHIN 30.5N59W TO 31N60W TO 
30N60W TO 29.5N59W TO 30.5N59W S TO SW WINDS 20 TO 25 KT. SEAS 3 
TO 4 M. ELSEWHERE WITHIN 31N43W TO 30N68W TO 28N68W TO 27N59W TO 
28N55W TO 31N43W WINDS 20 KT OR LESS. SEAS 2.5 TO 3.5 M IN S 
SWELL.
.24 HOUR FORECAST WITHIN 31N52W TO 31N66W TO 30N66W TO 28N60W TO
29N52W TO 31N52W WINDS 20 KT OR LESS. SEAS 2.5 TO 3 M IN S TO SW
SWELL.
.36 HOUR FORECAST CONDITIONS IMPROVE. WINDS 20 KT OR LESS. SEAS 
LESS THAN 2.5 M.

.SYNOPSIS AND FORECAST.

.ATLC COLD FRONT FROM 31N76W TO 26N80W. WITHIN 31N75W TO 30N78W 
TO 31N81W TO 28N80W TO 27N75W TO 29N74W TO 31N75W WINDS 20 TO 30 
KT. SEAS 3.5 TO 5.5 M. ELSEWHERE WITHIN 31N70W TO 31N81W TO 
27N80W TO 23N74W TO 22N70W TO 31N70W WINDS 20 KT OR LESS. SEAS 
2.5 TO 3.5 M IN PRIMARILY E SWELL.
.24 HOUR FORECAST COLD FRONT FROM 31N72W TO 23N80W. WITHIN 
31N67W TO 31N80W TO 28N80W TO 26N75W TO 26N72W TO 31N67W WINDS 20
KT OR LESS. SEAS 2.5 TO 4.5 M IN SE SWELL.
.48 HOUR FORECAST COLD FRONT FROM 31N66W TO 23N79W. WITHIN 
31N74W TO 31N79W TO 30.5N78.5W TO 30.5N77W TO 30.5N75.5W TO 
31N74W WINDS 20 KT OR LESS. SEAS 2.5 TO 3 M IN NE TO E SWELL.

.ATLC WITHIN 17N52W TO 19N57W TO 18N60W TO 16N60W TO 13N54W TO
14N51W TO 17N52W WINDS 20 KT OR LESS. SEAS 2.5 TO 3.0 M IN E
SWELL.
.24 HOUR FORECAST CONDITIONS IMPROVE. WINDS 20 KT OR LESS. SEAS
LESS THAN 2.5 M.

.ATLC 12 HOUR FORECAST LOW PRES NEAR 08N35W 1010 MB. WITHIN 
18N35W TO 15N41W TO 12N39W TO 11N35W TO 18N35W WINDS 20 TO 25 KT.
SEAS 2.5 TO 3.0 M.
.24 HOUR FORECAST LOW PRES NEAR 11N37W 1008 MB. WITHIN 16N37W TO
16N39W TO 14N39W TO 13N37W TO 13N35W TO 14N35W TO 16N37W WINDS 
20 TO 30 KT. SEAS 3 TO 3.5 M. ELSEWHERE WITHIN 18N35W TO 19N37W 
TO 18N41W TO 14N43W TO 11N37W TO 11N35W TO 18N35W WINDS 20 KT OR 
LESS. SEAS 2.5 TO 3 M IN NE SWELL.
.48 HOUR FORECAST LOW PRES NEAR 13N40W 1005 MB. WITHIN 18N40W TO
18N43W TO 17N44W TO 16N41W TO 15N40W TO 16N39W TO 18N40W WINDS 
20 TO 30 KT. SEAS 3 TO 4 M. ELSEWHERE WITHIN 18N37W TO 20N43W TO 
18N46W TO 14N43W TO 13N40W TO 15N37W TO 18N37W WINDS 20 KT OR 
LESS. SEAS 2.5 TO 3 M IN E TO SE SWELL.

.GULF OF AMERICA WITHIN 27N84W TO 28N88W TO 28N90W TO 25N92W TO
26N85W TO 27N84W WINDS 20 KT OR LESS. SEAS TO 2.5 M IN NE SWELL.
.12 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 DELGADO. NATIONAL HURRICANE CENTER.