282
FZNT01 KWBC 200952
HSFAT1

HIGH SEAS FORECAST FOR METAREA IV
NWS OCEAN PREDICTION CENTER WASHINGTON DC
1030 UTC WED AUG 20 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SUPERSEDED BY NEXT ISSUANCE IN 6 HOURS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 20.
24 HOUR FORECAST VALID 0600 UTC AUG 21.
48 HOUR FORECAST VALID 0600 UTC AUG 22.

.WARNINGS.

...HURRICANE WARNING...
.SEE TAFB PORTION BELOW FOR MORE INFORMATION ON ERIN.
.EXCEPT WHERE DESCRIBED IN TAFB PORTION BELOW...FROM 31N TO 36N
BETWEEN 66W AND 80W WINDS 20 TO 33 KT. SEAS 2.5 TO 4 M.
.24 HOUR FORECAST HURRICANE ERIN NEAR 33.0N 72.8W. MAXIMUM
SUSTAINED WINDS 95 KT GUSTS 115 KT. TROPICAL STORM FORCE WINDS
WITHIN 230 NM NE QUADRANT...240 NM SE QUADRANT...190 NM SW
QUADRANT...AND 180 NM NW QUADRANT. SEAS 4 M OR GREATER WITHIN 420
NM NE...390 NM SE...450 NM SW...AND 420 NM NW QUADRANTS WITH SEAS
TO 17 M. ELSEWHERE FROM 31N TO 42N BETWEEN 68W AND 77W WINDS 20
TO 33 KT. SEAS 2.5 TO 4 M.
.48 HOUR FORECAST HURRICANE ERIN NEAR 37.4N 67.3W. MAXIMUM
SUSTAINED WINDS 90 KT GUSTS 110 KT. TROPICAL STORM FORCE WINDS
WITHIN 280 NM NE QUADRANT...310 NM SE QUADRANT...240 NM SW
QUADRANT...AND 250 NM NW QUADRANT. SEAS 4 M OR GREATER WITHIN 420
NM NE...480 NM SE...600 NM SW...AND 480 NM NW QUADRANTS WITH SEAS
TO 16.5 M. ELSEWHERE FROM 31N TO 46N BETWEEN 76W AND 56W WINDS 20
TO 33 KT. SEAS 2.5 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.

...GALE WARNING...
.LOW 49N45W 1001 MB MOVING NE 15 KT. WITHIN 420 NM S
SEMICIRCLE...AND FROM 41N TO 60N BETWEEN 52W AND 58W WINDS 25 TO
35 KT. SEAS 2.5 TO 3.5 M.
.24 HOUR FORECAST LOW 53N44W 996 MB. WITHIN 180 NM N OF A LINE
FROM 55N50W TO 58N40W WINDS 35 TO 45 KT. SEAS 3 TO 5.5 M.
ELSEWHERE WITHIN 480 NM S SEMICIRCLE...WITHIN 600 NM W
QUADRANT...AND WITHIN 360 NM N OF A LINE FROM 55N50W TO 56N35W
WINDS 25 TO 35 KT. SEAS 2.5 TO 3.5 M.
.48 HOUR FORECAST LOW 53N44W 996 MB. WITHIN 480 NM OF
CENTER...EXCEPT WITHIN 60 NM NE QUADRANT....AND WITHIN 180 NM N
OF A LINE FROM 57N44W TO 62N35W WINDS 25 TO 35 KT. SEAS 2.5 TO 4
M.

...GALE WARNING...
.WITHIN 300 NM N OF A LINE FROM 57N52W TO 54N35W WINDS 25 TO 35
KT. SEAS TO 3.5 M.
.24 HOUR FORECAST CONDITIONS ABSORBED BY LOW 53N44W DESCRIBED
ABOVE.

.SYNOPSIS AND FORECAST.

.LOW 34N46W 1014 MB MOVING NE 15 KT. WITHIN 300 NM SE...AND 120
NM W QUADRANTS WINDS TO 25 KT. SEAS LESS THAN 2.5 M.
.24 HOUR FORECAST LOW 36N39W 1014 MB. WITHIN 300 NM SE SEMICIRCLE
WINDS 20 TO 30 KT. SEAS TO 2.5 M.
.48 HOUR FORECAST LOW AND ASSOCIATED CONDITIONS MOVED E OF AREA.

.48 HOUR FORECAST N OF 62N BETWEEN 57W AND GREENLAND WINDS 20 TO
30 KT. SEAS LESS THAN 2.5 M.

.DENSE FOG. VSBY OCCASIONALLY LESS THAN 1 NM WITHIN 360 NM N OF A
LINE FROM 55N53W TO 50N35W...AND N OF 63N BETWEEN 54W AND
GREENLAND.
.24 HOUR FORECAST DENSE FOG FROM 54N TO 59N BETWEEN 48W AND
35W....AND N OF 63N WITHIN 60 NM W OF GREENLAND.
.48 HOUR FORECAST DENSE FOG N OF 63N E OF GREENLAND.

.FORECASTER BYRD. 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 0600 UTC WED AUG 20.
24 HOUR FORECAST VALID 0600 UTC THU AUG 21.
48 HOUR FORECAST VALID 0600 UTC FRI AUG 22.

.WARNINGS.

...ATLC HURRICANE WARNING...
.HURRICANE ERIN NEAR 28.9N 73.3W 954 MB AT 0900 UTC AUG 20
MOVING NNW OR 345 DEG AT 11 KT. MAXIMUM SUSTAINED WINDS 85 KT
GUSTS 105 KT. TROPICAL STORM FORCE WINDS WITHIN 220 NM NE
QUADRANT...230 NM SE QUADRANT...130 NM SW QUADRANT...AND 160 NM
NW QUADRANT. SEAS 4 M OR GREATER WITHIN 450 NM NE QUADRANT...330
NM SE QUADRANT...210 NM SW QUADRANT...AND 420 NM NW QUADRANT
WITH SEAS TO 13.5 M. ELSEWHERE WITHIN 31N68W TO 31N77W TO 25N77W
TO 24N73W TO 25N67W TO 31N68W...INCLUDING ATLC EXPOSURES...WINDS
20 TO 33 KT. SEAS 3 TO 5.5 M. REMAINDER OF AREA WITHIN 31N64W TO
31N81W TO 29N81W TO 23N72W TO 23N68W TO 27N64W TO
31N64W...INCLUDING
ATLC EXPOSURES...WINDS 20 KT OR LESS. SEAS 2.5 TO 3.5 M IN MIXED
SWELL.
.24 HOUR FORECAST HURRICANE ERIN N OF AREA NEAR 33.0N 72.8W.
MAXIMUM SUSTAINED WINDS 95 KT GUSTS 115 KT. TROPICAL STORM FORCE
WINDS WITHIN 230 NM NE QUADRANT...240 NM SE QUADRANT...190 NM SW
QUADRANT...AND 180 NM NW QUADRANT. OVER FORECAST WATERS S OF 31N
WITHIN 31N65W TO 30N71W TO 31N79W TO 27N75W TO 26N70W TO 28N67W
TO 31N65W WINDS 20 TO 33 KT. SEAS 4 TO 6 M IN NW TO N SWELL.
ELSEWHERE WITHIN 31N64W TO 31N81W TO 26N79W TO 25N74W TO 25N71W
TO 26N66W TO 31N64W...INCLUDING ATLC EXPOSURES...WINDS 20 KT OR
LESS. SEAS 2.5 TO 4 M IN NW TO N SWELL.
.48 HOUR FORECAST HURRICANE ERIN WELL N OF AREA NEAR 37.4N
67.3W. MAXIMUM SUSTAINED WINDS 90 KT GUSTS 110 KT. TROPICAL STORM
FORCE WINDS WITHIN 280 NM NE QUADRANT...310 NM SE QUADRANT...240
NM SW QUADRANT...AND 250 NM NW QUADRANT. OVER FORECAST WATERS S
OF 31N WITHIN 31N61W TO 31N71W TO 29N69W TO 29N64W TO 31N61W S TO
SW WINDS 20 TO 30 KT. SEAS 3.5 TO 4.5 M IN W TO NW SWELL.
ELSEWHERE WITHIN 31N59W TO 30N70W TO 31N71W TO 31N81W TO 27N74W
TO 27N69W TO 31N59W WINDS 20 KT OR LESS. SEAS 2.5 TO 3.5 M IN NW
TO N 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.

.CARIBBEAN 18 HOUR FORECAST WITHIN 13N69W TO 13N73W TO 13N75W TO
12N74W TO 12N72W TO 11N71W TO 13N69W...INCLUDING THE GULF OF
VENEZUELA...NE TO E WINDS 20 TO 25 KT. SEAS LESS THAN 2.5 M.
.24 HOUR FORECAST LITTLE CHANGE.
.48 HOUR FORECAST WITHIN 12N70W TO 12N71W TO 12N72W TO 11N72W TO
11N71W TO 11N70W TO 12N70W...INCLUDING THE GULF OF VENEZUELA...
NE TO E WINDS 20 TO 25 KT. SEAS LESS THAN 2.5 M.

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


.FORECASTER AGUIRRE. NATIONAL HURRICANE CENTER.

$$