946
FZNT01 KWBC 110427
HSFAT1

HIGH SEAS FORECAST FOR METAREA IV
NWS OCEAN PREDICTION CENTER WASHINGTON DC
0430 UTC SAT OCT 11 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SUPERSEDED BY NEXT ISSUANCE IN 6 HOURS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 11.
24 HOUR FORECAST VALID 0000 UTC OCT 12.
48 HOUR FORECAST VALID 0000 UTC OCT 13.

.WARNINGS.

...TROPICAL STORM WARNING...
.48 HOUR FORECAST TROPICAL STORM JERRY NEAR 31.3N 60.8W. MAXIMUM
SUSTAINED WINDS 45 KT GUSTS 55 KT. TROPICAL STORM FORCE WINDS
WITHIN 40 NM W SEMICIRCLE...110 NM NE QUADRANT AND 100 NM SE
QUADRANT. SEAS 4 M OR GREATER WITHIN 120 NM NE AND 90 NM NW
QUADRANTS AND 210 NM S SEMICIRCLE WITH SEAS TO 5.5 M. ELSEWHERE
FROM 31N TO 35N BETWEEN 52W AND 66W WINDS 20 TO 33 KT. SEAS TO 4
M.

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

...STORM WARNING...
.LOW 57N46W 985 MB MOVING NE 20 KT. WITHIN 120 SW SEMICIRCLE AND
180 NM SE QUADRANT AND FROM 59N TO 61N BETWEEN 40W AND 46W WINDS
35 TO 50 KT. SEAS 4 TO 6 M. ELSEWHERE FROM 51N TO 58N BETWEEN
37W AND 50W AND FROM 58N TO 62N E OF 47W WINDS 25 TO 40 KT. SEAS
TO 4.5M. OTHERWISE WITHIN 420 NM OF LOW EXCEPT 180 NM W QUADRANT
WINDS 20 TO 30 KT. SEAS TO 4 M.
.24 HOUR FORECAST COMPLEX LOW WITH MAIN CENTER 63N37W 1002 MB. N
OF 64N E OF GREENLAND...AND WITHIN 90 NM W AND SW QUADRANTS
WINDS 30 TO 45 KT. SEAS 3.5 TO 5.5 M. ELSEWHERE N OF 59N E OF
40W WINDS 20 TO 30 KT. SEAS 3 TO 5 M. OTHERWISE FROM 53N TO 59N
E OF 49W WINDS TO 25 KT. SEAS 2.5 TO 4.5 M.
.48 HOUR FORECAST LOW 64N36W 1014 MB. CONDITIONS DIMINISHED.

...STORM WARNING...
.LOW 42N43W 1011 MB MOVING NE 20 KT AND INTENSIFYING. WITHIN 120
NM E AND SE AND 180 NM W QUADRANTS WINDS 25 TO 35 KT. SEAS TO
3.5 M. ELSEWHERE WITHIN 300 NM OF LOW AND WITHIN 360 NM W OF A
FRONT FROM LOW TO 34N51W WINDS TO 25 KT. SEAS TO 2.5 M.
.12 HOUR FORECAST LOW 44N40W 1005 MB. FROM 35N TO 47N BETWEEN
36W AND 50W WINDS 25 TO 40 KT. SEAS TO 4 M.
.24 HOUR FORECAST LOW 48N36W 990 MB. WITHIN 120 NM SW SEMICIRCLE
WINDS 40 TO 50 KT. SEAS 4 TO 6.5 M. ELSEWHERE FROM 43N TO 52N
BETWEEN 35W AND 41W WINDS 25 TO 40 KT. SEAS 2.5 TO 4.5 M.
.48 HOUR FORECAST LOW 54N39W 978 MB. FROM 50N TO 56N BETWEEN 35W
AND 47W WINDS 40 TO 50 KT. SEAS 4 TO 7 M. ELSEWHERE WITHIN 240
NM E SEMICIRCLE...420 NM NW...540 NM SW AND 720 NM S QUADRANTS
WINDS 30 TO 45 KT. SEAS 3.5 TO 6 M...HIGHEST SW QUADRANT.

...STORM WARNING...
.FROM 31N TO 37N BETWEEN 57W AND 81W AREA OF E TO NE WINDS 20 TO
30 KT. SEAS 2.5 TO 4.5 M.
.12 HOUR FORECAST FROM 32N TO 35N BETWEEN 69W AND 78W AREA OF E
TO NE WINDS 25 TO 40 KT. SEAS 3 TO 4.5 M.
.24 HOUR FORECAST LOW 32N77W 1002 MB. WITHIN 180 NM W AND NW
QUADRANTS AND FROM 34N TO 38N BETWEEN 68W AND 77W WINDS 25 TO 40
KT. SEAS 2.5 TO 5 M. ELSEWHERES OF 41N W OF 68W WINDS 20 TO 30
KT. SEAS TO 3.5 M.
.36 HOUR FORECAST COMPLEX LOW WITH MAIN CENTER 34N77W 997 MB.
FROM 36N TO 41N BETWEEN 62W AND 75W WINDS 35 TO 50 KT. SEAS 3.5
TO 7 M.
.48 HOUR FORECAST COMPLEX LOW WITH MAIN CENTER 35N76W 1002 MB.
FRONT TO EXTEND FROM 36N76W TO 38N71W TO 36N58W. WITHIN 150 NM N
OF THE FRONT W OF 64W WINDS 35 TO 50 KT. SEAS 4.5 TO 8 M.
ELSEWHERE WITHIN 240 NM N OF THE FRONT WINDS 25 TO 40 KT. SEAS 3
TO 6 M. OTHERWISE FROM 31N TO 44N BETWEEN 66W AND 81W AND FROM
35N TO 43N BETWEEN 44W AND 66W WINDS 20 TO 30 KT. SEAS TO 4 M.

...GALE WARNING...
.N OF 64N W OF GREENLAND...AND N OF 58N BETWEEN 56W AND 61W AREA
OF SE TO S WINDS 25 TO 35 KT. SEAS TO 3.5 M...HIGHEST NEAR
63N59W. ELSEWHERE N OF 47N W OF 54W WINDS TO 25 KT. SEAS TO 2.5
M.
.24 HOUR FORECAST LOW 66N61W 990 MB. FROM 59N TO 64N W OF 58W
WINDS 25 TO 35 KT. SEAS 2.5 TO 4 M. ELSEWHERE N OF 58N W OF 50W
WINDS TO 25 KT. SEAS TO 3 M.
.48 HOUR FORECAST LOW 68N68W 1002 MB. WITHIN 360 NM SE QUADRANT
WINDS 20 TO 30 KT. SEAS TO 3 M. ELSEWHERE FROM 64N TO 65N
BETWEEN 55W AND 64W WINDS 20 TO 30 KT. SEAS TO 2.5 M.

...GALE WARNING...
.12 HOUR FORECAST FROM 32N TO 35N BETWEEN 60W AND 67W AREA OF E
WINDS 25 TO 35 KT. SEAS 3 TO 4.5 M.
.24 HOUR FORECAST NEW LOW 32N68W 1006 MB. FROM 33N TO 37N
BETWEEN 59W AND 68W WINDS 25 TO 35 KT. SEAS 3 TO 5 M. ELSEWHERE
S OF A LINE FROM 40N69W TO 35N44W WINDS 20 TO 30 KT. SEAS TO 3.5
M.
.48 HOUR FORECAST LOW ABSORBED. CONDITIONS DESCRIBED ABOVE WITH
LOW 36N76W.

.SYNOPSIS AND FORECAST.

.DENSE FOG. VSBY OCCASIONALLY LESS THAN 1 NM FROM 52N TO 61N
BETWEEN 35W AND 50W...AND N OF 61N W OF 58W.
.24 HOUR FORECAST DENSE FOG N OF 64N E OF GREENLAND...AND WITHIN
120 NM E OF A LINE FROM 63N51W TO 58N51W TO 50N57W.
.48 HOUR FORECAST DENSE FOG FROM 50N TO 56N BETWEEN 42W AND
47W...AND FROM 59N TO 61N BETWEEN 35W AND 37W.

.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 SAT OCT 11.
24 HOUR FORECAST VALID 0000 UTC SUN OCT 12.
48 HOUR FORECAST VALID 0000 UTC MON OCT 13.

.WARNINGS.

...ATCL TROPICAL STORM WARNING...
.TROPICAL STORM JERRY NEAR 22.7N 63.9W 1004 MB AT 0300 UTC OCT
11 MOVING N OR 350 DEG AT 13 KT. MAXIMUM SUSTAINED WINDS 50 KT
GUSTS 60 KT. TROPICAL STORM FORCE WINDS WITHIN 0 NM W
SEMICIRCLE...150 NM NE QUADRANT AND 130 NM SE QUADRANT. SEAS 4 M
OR GREATER WITHIN 275 NM NE QUADRANT...210 NM SE QUADRANT...90 NM
SW QUADRANT...AND 150 NM NW QUADRANT WITH SEAS TO 6 M. ELSEWHERE
WITHIN 25N59W TO 26N62W TO 24N64W TO 20N63W TO 15N63W TO 22N59W
TO 25N59W WINDS 20 TO 33 KT. SEAS 4.0 TO 5.5 M. REMAINDER OF AREA
WITHIN 25N57W TO 30N60W TO 24N68W TO 20N67W TO 17N61W TO 19N57W
TO 25N57W WINDS 20 KT OR LESS. SEAS 2.5 TO 4.5 M IN MIXED SWELL.
.24 HOUR FORECAST TROPICAL STORM JERRY NEAR 27.4N 62.7W. MAXIMUM
SUSTAINED WINDS 50 KT GUSTS 60 KT. TROPICAL STORM FORCE WINDS
WITHIN 120 NM E SEMICIRCLE AND 0 NM W SEMICIRCLE. SEAS 4 M OR
GREATER WITHIN 275 NM NE QUADRANT...210 NM SE QUADRANT...90 NM SW
QUADRANT...AND 150 NM NW QUADRANT WITH SEAS TO 6 M. ELSEWHERE
WITHIN 31N61W TO 31N63W TO 27N65W TO 26N64W TO 25N61W TO 27N59W
TO 31N61W WINDS 20 TO 33 KT. SEAS 4.0 TO 5.5 M. REMAINDER OF AREA
WITHIN 31N50W TO 31N80W TO 29N80W TO 24N72W TO 22N61W TO 27N57W
TO 31N50W WINDS 20 KT OR LESS. SEAS 2.5 TO 4.5 M IN MIXED SWELL.
.48 HOUR FORECAST TROPICAL STORM JERRY NEAR 31.3N 60.8W. MAXIMUM
SUSTAINED WINDS 45 KT GUSTS 55 KT. TROPICAL STORM FORCE WINDS
WITHIN 40 NM W SEMICIRCLE...110 NM NE QUADRANT AND 100 NM SE
QUADRANT. OVER FORECAST WATERS SEAS 4 M OR GREATER N OF 28N
BETWEEN 58W AND 65W WITH SEAS TO 5.5 M. ELSEWHERE WITHIN 31N57W
TO 30N60W TO 31N60W TO 31N62W TO 30N62W TO 29N57W TO 31N57W WINDS
20 TO 33 KT. SEAS 3.5 TO 5 M. REMAINDER OF AREA WITHIN 31N52W TO
31N67W TO 30N77W TO 27N75W TO 27N59W TO 29N56W TO 31N52W WINDS
20 KT OR LESS. SEAS 2.5 TO 4 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 STATIONARY FRONT FROM 31N61W TO 28N80W. WITHIN 31N60W TO
31N70W TO 31N81W TO 29N78W TO 30N71W TO 29N66W TO 31N60W E WINDS
20 TO 30 KT. SEAS 3 TO 4 M. ELSEWHERE WITHIN 31N60W TO 31N81W TO
28N80W TO 27N77W TO 29N70W TO 28N65W TO 31N60W WINDS 20 KT OR
LESS. SEAS 2.5 TO 3.5 M IN NE SWELL.
.24 HOUR FORECAST COLD FRONT FROM 31N78W TO 27N81W. WITHIN
31N80W TO 31N81W TO 30N81W TO 29N80W TO 31N80W NW TO N WINDS 20
TO 30 KT. SEAS 2.5 TO 3.5 M. LARGE SWELL REGION MERGED WITH
TROPICAL STORM JERRY DESCRIBED ABOVE.
.48 HOUR FORECAST COLD FRONT FROM 31N75W TO 25N80W. WITHIN
31N76W TO 31N81W TO 30N81W TO 30N79W TO 30N77W TO 31N76W W WINDS
20 TO 25 KT. SEAS 2.5 TO 3.0 M.

.ATLC WITHIN 17N46W TO 18N52W TO 13N57W TO 11N53W TO 13N52W TO
14N46W TO 17N46W WINDS 20 KT OR LESS. SEAS TO 2.5 M IN E SWELL.
.24 HOUR FORECAST CONDITIONS IMPROVE. WINDS 20 KT OR LESS. SEAS
LESS THAN 2.5 M.

.GULF OF AMERICA WITHIN 28N83W TO 30N84W TO 30N87W TO 27N91W TO
25N90W TO 24N87W TO 28N83W NE WINDS 20 TO 30 KT. SEAS 2.5 TO 3.0
M.
.24 HOUR FORECAST WITHIN 27N87W TO 27N89W TO 27N90W TO 25N90W TO
26N89W TO 26N87W TO 27N87W 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.

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

$$
.FORECASTER DELGADO. NATIONAL HURRICANE CENTER.