553
FZNT01 KWBC 220939
HSFAT1

HIGH SEAS FORECAST FOR METAREA IV
NWS OCEAN PREDICTION CENTER WASHINGTON DC
1030 UTC FRI AUG 22 2025

CCODE/2:31:04:11:00/AOE+AOW/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SUPERSEDED BY NEXT ISSUANCE IN 6 HOURS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 0600 UTC AUG 22.
24 HOUR FORECAST VALID 0600 UTC AUG 23.
48 HOUR FORECAST VALID 0600 UTC AUG 24.

.WARNINGS.

...HURRICANE WARNING...
.HURRICANE ERIN NEAR 38.6N 65.3W 956 MB AT 0900 UTC AUG 22
MOVING NE OR 050 DEG AT 19 KT. MAXIMUM SUSTAINED WINDS 80 KT
GUSTS 100 KT. TROPICAL STORM FORCE WINDS WITHIN 280 NM N
SEMICIRCLE...AND WITHIN 320 NM SE AND 270 NM SW QUADRANTS.
SEAS 4 M OR GREATER WITHIN 410 NM NE...480 NM SE...510 NM
SW...AND 390 NM NW QUADRANTS WITH SEAS TO 16.5 M. ELSEWHERE
FROM 31N TO 44N BETWEEN 56W AND 75W WINDS 20 TO 33 KT. SEAS
2.5 TO 4 M.
.24 HOUR FORECAST POST-TROPICAL CYCLONE ERIN NEAR 41.8N
55.2W. MAXIMUM SUSTAINED WINDS 75 KT GUSTS 95 KT. TROPICAL
STORM FORCE WINDS WITHIN 310 NM NE AND SW...AND 350 NM SE
AND 270 NM NW QUADRANTS. SEAS 4 M OR GREATER WITHIN 330 NM
NE...540 NM SE...720 NM SW...AND 420 NM NW QUADRANTS WITH
SEAS TO 15.5 M. ELSEWHERE FROM 31N TO 48N BETWEEN 42W AND
65W WINDS 20 TO 33 KT. SEAS 2.5 TO 5 M.
.48 HOUR FORECAST POST-TROPICAL CYCLONE ERIN NEAR 47.4N
38.4W. MAXIMUM SUSTAINED WINDS 70 KT GUSTS 85 KT. TROPICAL
STORM FORCE WINDS WITHIN 270 NM NE AND 240 NM NW
QUADRANTS...AND WITHIN 380 NM S SEMICIRCLE. SEAS TO 4 M
OR GREATER WITHIN 240 NM NE...600 NM SE...1020 NM SW...AND
420 NM NW QUADRANTS WITH SEAS TO 14 M.
ELSEWHERE FROM 32N TO 54N E OF 52W WINDS 20 TO 33 KT.
SEAS 2.5 TO 6 M IN MIXED SWELL...HIGHEST S AND SW OF
CENTER.

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

...GALE WARNING...
.LOW 53N43W 993 MB MOVING E 10 KT WILL TURN NE AND
ACCELERATE AFTER 24 HOURS. WITHIN 120 NM N OF A LINE FROM
57N47W TO 59N42W WINDS 35 TO 45 KT. SEAS 4 TO 6 M. ALSO
BETWEEN 180 NM AND 540 NM N AND NE QUADRANTS...BETWEEN
120 NM AND 360 NM S AND SW SEMICIRCLES...AND BETWEEN 180
NM AND 420 NM NW QUADRANT WINDS 25 TO 35 KT. SEAS 3 TO 5
M. ELSEWHERE FROM 45N TO 63N E OF 57W WINDS TO 25 KT.
SEAS 2.5 TO 3.5 M.
.24 HOUR FORECAST LOW 53N39W 995 MB. WITHIN 480 NM OF
LOW CENTER...EXCEPT NE QUADRANT...WINDS 20 TO 30 KT.
SEAS 2.5 TO 4 M.
.48 HOUR FORECAST LOW E OF AREA 58N32W 995 MB WITH
ASSOCIATED CONDITIONS E OF AREA.

...GALE WARNING...
.LOW 65N53W 1009 MB NEARLY STATIONARY. WITHIN 150 NM N
AND NW QUADRANTS WINDS 25 TO 35 KT. SEAS TO 3 M.
ELSEWHERE N OF 60N BETWEEN 50W AND 58W WINDS TO 25 KT.
SEAS TO 2.5 M.
.24 HOUR FORECAST LOW 64N52W 1007 MB. WITHIN 120 NM
W...AND 180 NM N AND NW QUADRANTS WINDS 25 TO 35 KT.
SEAS 2.5 TO 4 M. ELSEWHERE N OF 59N BETWEEN 52W AND 60W
WINDS TO 25 KT. SEAS TO 3 M.
.48 HOUR FORECAST LOW 64N51W 1003 MB. WITHIN 180 NM W
SEMICIRCLE WINDS 25 TO 35 KT. SEAS 3 TO 5 M. ELSEWHERE
N OF 55N BETWEEN 48W AND 60W WINDS 20 TO 30 KT. SEAS
2.5 TO 4 M.

...GALE WARNING...
.24 HOUR FORECAST NEW LOW 63N36W 1002 MB. WITHIN 150 NM
W AND NW SEMICIRCLES WINDS 20 TO 30 KT. SEAS TO 3 M.
.36 HOUR FORECAST LOW DISSIPATED WITH A NEW LOW 64N35W
993 MB. WITHIN 180 NM W...AND 150 NM N AND NW QUADRANTS
WINDS 25 TO 35 KT. SEAS 2.5 TO 3.5 M.
.48 HOUR FORECAST LOW 63N38W 991 MB. WITHIN 180 NM N AND
NE...60 NM SW...AND 90 NM NW QUADRANTS WINDS 25 TO 40 KT.
SEAS 3 TO 4.5 M. ELSEWHERE N OF 61N E OF GREENLAND WINDS
TO 25 KT. SEAS TO 3 M.

.SYNOPSIS AND FORECAST.

.48 HOUR FORECAST W OF A LINE FROM 41N69W TO 45N59W TO
49N61W...INCLUDING THE GULF OF SAINT LAWRENCE...AREA OF
S TO SW WINDS TO 25 KT. SEAS TO 2.5 M.

.DENSE FOG. VSBY OCCASIONALLY LESS THAN 1 NM N OF 59N
BETWEEN 38W AND 51W...FROM 52N TO 58N BETWEEN 39W AND
48W...AND FROM 38N TO 42N BETWEEN 57W AND 69W.
.24 HOUR FORECAST DENSE FOG N OF 63N E OF GREENLAND...
FROM 52N TO 58N BETWEEN 38W AND 47W...AND FROM 42N TO
47N BETWEEN 44W AND 57W.
.48 HOUR FORECAST DENSE FOG N OF 63N E OF GREENLAND...
AND FROM 46N TO 51N E OF 42W.

.FORECASTER MILLS. 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 0600 UTC FRI AUG 22.
24 HOUR FORECAST VALID 0600 UTC SAT AUG 23.
48 HOUR FORECAST VALID 0600 UTC SUN AUG 24.

.WARNINGS.

.NONE.

.SYNOPSIS AND FORECAST.

.ATLC HURRICANE ERIN N OF AREA. OVER FORECAST WATERS WITHIN
31N62W TO 31N69W TO 29N66W TO 29N64W TO 31N62W SW WINDS 20 TO 30
KT. SEAS 3.0 TO 5.5 M IN W TO NW SWELL. ELSEWHERE WITHIN 31N60W
TO 30N68W TO 31N69W TO 31N77W TO 28N74W TO 27N68W TO 31N60W WINDS
20 KT OR LESS. SEAS 2.5 TO 4.5 M IN W TO NW SWELL.
.24 HOUR FORECAST WITHIN 31N52W TO 31N79W TO 26N69W TO 26N63W TO
31N52W WINDS 20 KT OR LESS. SEAS 2.5 TO 4.0 M IN NW TO N SWELL...
EXCEPT N TO NE SWELL W OF 69W.
.48 HOUR FORECAST WITHIN 31N39W TO 31N72W TO 25N71W TO 23N66W TO
24N54W TO 28N42W TO 31N39W WINDS 20 KT OR LESS. SEAS 2.5 TO 4.5
M IN NW TO N SWELL...EXCEPT N TO NE SWELL W OF 63W.

.ATLC LOW PRES...AL90...NEAR 18.5N58.5W 1011 MB. WITHIN 21N57W
TO 21N58W TO 20N58W TO 18N57W TO 19N56W TO 21N57W SE TO S WINDS
20 TO 25 KT. SEAS LESS THAN 2.5 M.
.24 HOUR FORECAST LOW PRES...AL90...POSSIBLE TROPICAL CYCLONE...
NEAR 23N62W 1007 MB. WITHIN 24N60W TO 25N62W TO 24N63W TO
22N63W TO 21N61W TO 22N60W TO 24N60W WINDS 20 TO 30 KT. SEAS 2.5
TO 3.0 M.
.48 HOUR FORECAST LOW PRES...AL90...POSSIBLE TROPICAL CYCLONE...
NEAR 26.5N63.3W 1004 MB. EXCEPT AS NOTED ABOVE...WITHIN 28N62W
TO 28N64W TO 27N64W TO 26N64W TO 26N63W TO 26N62W TO 28N62W WINDS
20 TO 30 KT. SEAS 2.5 TO 4.0 M.

.ATLC BROAD LOW PRES...AL99...NEAR 10.5N38.5W 1010 MB. WITHIN
10N36W TO 11N37W TO 10N38W TO 09N38W TO 09N37W TO 10N36W WINDS 20
KT OR LESS. SEAS LESS THAN 2.5 M.
.24 HOUR FORECAST LOW PRES...AL99...POSSIBLE TROPICAL CYCLONE...
NEAR 10.5N43W 1008 MB. WITHIN 14N41W TO 15N44W TO 14N45W TO
12N44W TO 12N42W TO 13N40W TO 14N41W WINDS 20 TO 25 KT. SEAS TO
2.5 M.
.48 HOUR FORECAST LOW PRES...AL99...POSSIBLE TROPICAL CYCLONE...
NEAR 12N47.5W 1006 MB. WITHIN 14N47W TO 15N50W TO 15N52W TO
13N52W TO 12N50W TO 13N47W TO 14N47W WINDS 20 TO 25 KT. SEAS 2.5
M.

.CARIBBEAN WITHIN 12N71W TO 13N75W TO 12N76W TO 11N75W TO 11N73W
TO 11N71W TO 12N71W...INCLUDING THE GULF OF VENEZUELA...NE TO E
WINDS 20 TO 25 KT. SEAS LESS THAN 2.5 M...EXCEPT TO 2.5 M NEAR
11.5N74.5W.
.24 HOUR FORECAST LITTLE CHANGE.
.48 HOUR FORECAST WITHIN 13N67W TO 14N68W TO 15N72W TO 14N73W TO
13N73W TO 11N67W TO 13N67W...INCLUDING THE GULF OF VENEZUELA...
E WINDS 20 TO 25 KT. SEAS LESS THAN 2.5 M.

.CARIBBEAN 15 HOUR FORECAST WITHIN 17N85W TO 17N86W TO 17N87W TO
16N86W TO 16N85W TO 17N85W...INCLUDING NEAR THE GULF OF HONDURAS
...E WINDS 20 TO 25 KT. SEAS LESS THAN 2.5 M.
.24 HOUR FORECAST LITTLE CHANGE.
.48 HOUR FORECAST LITTLE CHANGE.

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

$$
.FORECASTER LEWITSKY. NATIONAL HURRICANE CENTER.