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North Atlantic Forecast

FZNT01 KWBC 220406
HSFAT1

HIGH SEAS FORECAST FOR METAREA IV 
NWS OCEAN PREDICTION CENTER WASHINGTON DC 
0430 UTC WED OCT 22 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SUPERSEDED BY NEXT ISSUANCE IN 6 HOURS 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). 

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 22. 
24 HOUR FORECAST VALID 0000 UTC OCT 23. 
48 HOUR FORECAST VALID 0000 UTC OCT 24. 

.WARNINGS. 

...GALE WARNING...
.LOW 42N38W 1002 MB MOVING SW 10 KT. WITHIN 180 NM W AND 240 NM 
N QUADRANTS WINDS 25 TO 40 KT. SEAS 4 TO 5.5 M. ELSEWHERE FROM 
41N TO 45N E OF 44W WINDS LESS THAN 25 KT. SEAS TO 4 M. 
.24 HOUR FORECAST COMPLEX LOW WITH MAIN CENTER 38N40W 1005 MB. 
WITHIN 180 NM W SEMICIRCLE...AND WITHIN 240 NM N OF A LINE FROM 
41N35W TO 39N40W WINDS 25 TO 35 KT. SEAS 3.5 TO 5.5 M. ELSEWHERE 
FROM 36N TO 43N E OF 39W WINDS TO 25 KT. SEAS TO 4 M.
.48 HOUR FORECAST COMPLEX LOW WITH FIRST CENTER 35N36W 1010 MB 
AND SECOND CENTER 39N37W 1010 MB. FROM 34N TO 44N E OF 43W WINDS 
20 TO 30 KT. SEAS 3.5 TO 5 M. 

...GALE WARNING... 
.LOW 66N61W 994 MB DRIFTING E 05 KT. WITHIN 90 NM NE OF A LINE 
FROM 61N50W TO 62N53W TO 67N56W WINDS 35 TO 45 KT. SEAS 4 TO 5.5 
M. ELSEWHERE WITHIN 120 NM NE OF A LINE FROM 59N49W TO 61N53W TO 
67N58W...AND WITHIN 300 NM SW OF A LINE FROM 63N56W TO 65N64W 
WINDS 25 TO 35 KT. SEAS TO 4 M. 
.24 HOUR FORECAST LOW 65N59W 1011 MB. CONDITIONS DIMINISHED. 

.SYNOPSIS AND FORECAST. 

.LOW E OF AREA 56N26W 992 MB MOVING SE 30 KT. FROM 57N TO 62N E 
OF 37W WINDS LESS THAN 25 KT. SEAS TO 4 M. 
.24 HOUR FORECAST LOW AND ASSOCIATED CONDITIONS MOVED WELL E OF 
AREA. 

.DENSE FOG. VSBY OCCASIONALLY LESS THAN 1 NM N OF 64N W OF 
GREENLAND.
.24 HOUR FORECAST DENSE FOG CONDITIONS IMPROVED. 
.48 HOUR FORECAST DENSE FOG WITHIN 300 NM SW OF A LINE FROM 
54N50W TO 64N64W...AND FROM 44N TO 48N BETWEEN 54W AND 58W. 

.FORECASTER POCHE. 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 WED OCT 22.
24 HOUR FORECAST VALID 0000 UTC THU OCT 23.
48 HOUR FORECAST VALID 0000 UTC FRI OCT 24.

.WARNINGS.

...CARIBBEAN TROPICAL STORM WARNING...
.TROPICAL STORM MELISSA NEAR 14.2N 74.0W 1003 MB AT 0300 UTC OCT
22 MOVING W OR 270 DEG AT 11 KT. MAXIMUM SUSTAINED WINDS 45 KT
GUSTS 55 KT. TROPICAL STORM FORCE WINDS WITHIN 120 NM NE
QUADRANT...90 NM SE QUADRANT...0 NM SW QUADRANT...AND 40 NM NW
QUADRANT. SEAS 4 M OR GREATER WITHIN 120 NM NE QUADRANT...0 NM SE
QUADRANT...0 NM SW QUADRANT...AND 90 NM NW QUADRANT WITH SEAS TO
6.5 M. ELSEWHERE WITHIN 17N68W TO 18N73W TO 18N76W TO 14N76W TO 
12N69W TO 14N67W TO 17N68W WINDS 20 TO 33 KT. SEAS 2.5 TO 4.0 M. 
.24 HOUR FORECAST TROPICAL STORM MELISSA NEAR 15.1N 75.2W. 
MAXIMUM SUSTAINED WINDS 50 KT GUSTS 60 KT. TROPICAL STORM FORCE 
WINDS WITHIN 120 NM NE QUADRANT...90 NM SE QUADRANT...30 NM SW 
QUADRANT...AND 60 NM NW QUADRANT. SEAS 4 M OR GREATER WITHIN 180 
NM NE QUADRANT...90 NM SE QUADRANT...60 NM SW QUADRANT...AND 150 
NM NW QUADRANT WITH SEAS TO 7.0 M. ELSEWHERE WITHIN 18N72W TO 
18N76W TO 17N77W TO 15N77W TO 14N73W TO 16N71W TO 18N72W WINDS 20
TO 33 KT. SEAS 3.0 TO 4.0 M. REMAINDER AREA WITHIN 18N72W TO 
18N76W TO 16N79W TO 15N79W TO 13N74W TO 15N70W TO 18N72W WINDS 20
KT OR LESS. SEAS 2.5 TO 3.5 M IN MIXED SWELL.
.48 HOUR FORECAST TROPICAL STORM MELISSA NEAR 15.9N 75.8W. 
MAXIMUM SUSTAINED WINDS 55 KT GUSTS 65 KT. LITTLE CHANGE IN 
RADIUS OF TROPICAL STORM FORCE WINDS AND SEAS 4 M OR GREATER WITH
SEAS TO 7.0 M. ELSEWHERE WITHIN 17N72W TO 18N76W TO 17N77W TO 
16N78W TO 14N74W TO 17N72W WINDS 20 TO 33 KT. SEAS 3.5 TO 4.0 M. 
REMAINDER AREA WITHIN 17N71W TO 19N77W TO 18N77W TO 17N80W TO 
14N79W TO 13N75W TO 17N71W WINDS 20 KT OR LESS. SEAS 2.5 TO 3.0 M
IN MIXED SWELL. 

FORECAST WINDS IN AND NEAR ACTIVE TROPICAL CYCLONES SHOULD BE
USED WITH CAUTION DUE TO UNCERTAINTY IN FORECAST TRACK...SIZE
AND INTENSITY.

.SYNOPSIS AND FORECAST.

.ATLC WITHIN 31N36W TO 31N54W TO 29N51W TO 29N45W TO 30N37W TO
31N36W WINDS 20 KT OR LESS. SEAS 2.5 TO 3.0 M IN NW TO N SWELL.
.24 HOUR FORECAST WITHIN 31N36W TO 31N54W TO 29N51W TO 29N45W TO
30N37W TO 31N36W WINDS 20 KT OR LESS. SEAS 2.5 TO 3.0 M IN N
SWELL.
.48 HOUR FORECAST WITHIN 31N38W TO 31N51W TO 29N49W TO 28N45W TO
31N38W WINDS 20 KT OR LESS. SEAS 2.5 TO 3.0 M IN N TO NE SWELL.

.REMAINDER OF AREA WINDS 20 KT OR LESS. SEAS LESS THAN 2.5 M.

$$
.FORECASTER AL. NATIONAL HURRICANE CENTER.


 

 



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