FZNT01 KWBC 081012
HSFAT1

HIGH SEAS FORECAST FOR METAREA IV 
NWS OCEAN PREDICTION CENTER WASHINGTON DC 
1030 UTC FRI SEP 08 2023 

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SUPERSEDED BY NEXT ISSUANCE IN 6 HOURS 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). 

SECURITE 

NORTH ATLANTIC NORTH OF 31N TO 67N AND WEST OF 35W 

ALL FORECASTS VALID OVER ICE FREE FORECAST WATERS 

SYNOPSIS VALID 0600 UTC SEP 08. 
24 HOUR FORECAST VALID 0600 UTC SEP 09. 
48 HOUR FORECAST VALID 0600 UTC SEP 10. 

.WARNINGS. 

...STORM WARNING... 
.LOW 62N40W 995 MB MOVING SE 10 KT. WITHIN 180 NM N OF A LINE 
FROM 57N35W TO 58N44W TO 59N47W WINDS 35 TO 50 KT. SEAS 12 TO 21 
FT. ELSEWHERE WITHIN 300 NM N OF A LINE FROM 55N35W TO 56N44W TO 
58N50W TO 61N52W WINDS 25 TO 35 KT. SEAS 9 TO 15 FT.
.24 HOUR FORECAST LOW 60N39W 1000 MB. WITHIN 180 NM S AND 300 NM 
W QUADRANTS WINDS 35 TO 45 KT. SEAS 12 TO 21 FT. ELSEWHERE 
WITHIN 240 NM N OF A LINE FROM 56N35W TO 56N45W TO 58N51W TO 
60N53W WINDS 25 TO 35 KT. SEAS 9 TO 15 FT. 
.48 HOUR FORECAST LOW AND CONDITIONS E OF AREA.

...GALE WARNING... 
.LOW 65N40W 988 MB MOVING SE 10 KT. WITHIN 120 NM W SEMICIRCLE 
WINDS 25 TO 35 KT. SEAS 8 TO 12 FT. ELSEWHERE N OF 61N E OF 37W 
WINDS 20 TO 30 KT. SEAS TO 10 FT.
.24 HOUR FORECAST LOW 63N37W 997 MB. WITHIN 180 NM W AND NW 
SEMICIRCLES WINDS 25 TO 35 KT. SEAS TO 10 FT.
.48 HOUR FORECAST LOW 60N35W 1010 MB. WITHIN 180 NM SW 
SEMICIRCLE WINDS TO 25 KT. SEAS 8 TO 12 FT.

...GALE WARNING...
.WITHIN 180 NM N OF A LINE FROM 51N51W TO 50N57W TO 49N61W TO 
49N66W WINDS 25 TO 35 KT. SEAS TO 10 FT.
.24 HOUR FORECAST FROM 49N TO 51N BETWEEN 56W AND 68W WINDS 20 
TO 30 KT. SEAS TO 9 FT.
.48 HOUR FORECAST CONDITIONS DIMINISHED.

.SYNOPSIS AND FORECAST. 

.LOW 47N57W 1006 MB MOVING NE 20 KT. WITHIN 360 NM E AND 300 NM 
S QUADRANTS WINDS TO 25 KT. SEAS TO 10 FT. 
.24 HOUR FORECAST LOW 49N45W 1012 MB. WITHIN 300 NM N AND NW 
QUADRANTS...AND 360 NM E AND SE QUADRANT WINDS TO 25 KT. SEAS TO 
9 FT.
.48 HOUR FORECAST LOW 48N38W 1013 MB. WITHIN 240 NM N AND NW 
QUADRANTS WINDS TO 25 KT. SEAS TO 9 FT. 

.DENSE FOG. VSBY OCCASIONALLY LESS THAN 1 NM FROM 45N TO 53N 
BETWEEN 43W AND 60W.
.24 HOUR FORECAST DENSE FOG FROM 44N TO 52N BETWEEN 40W AND 
54W...AND FROM 41N TO 51N BETWEEN 60W AND 69W.
.48 HOUR FORECAST DENSE FOG FROM 46N TO 55N BETWEEN 52W AND 
62W...AND FROM 42N TO 47N BETWEEN 62W AND 69W.

.FORECASTER NOLT. OCEAN PREDICTION CENTER.

NATIONAL HURRICANE CENTER MIAMI FL

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

SYNOPSIS VALID 0600 UTC FRI SEP 8.
24 HOUR FORECAST VALID 0600 UTC SAT SEP  9.
48 HOUR FORECAST VALID 0600 UTC SUN SEP 10.

.WARNINGS.

...ATLC HURRICANE WARNING...
.HURRICANE LEE NEAR 17.8N 53.5W 926 MB AT 0900 UTC SEP 08 MOVING
WNW OR 295 DEG AT 12 KT. MAXIMUM SUSTAINED WINDS 145 KT GUSTS
175 KT. TROPICAL STORM FORCE WINDS WITHIN 120 NM NE
QUADRANT...110 NM SE QUADRANT...50 NM SW QUADRANT...AND 80 NM NW
QUADRANT. SEAS 12 FT OR GREATER WITHIN 240 NM NE QUADRANT...150 
NM SE QUADRANT...90 NM SW QUADRANT...AND 210 NM NW QUADRANT WITH 
SEAS TO 48 FT. ELSEWHERE WITHIN 20N50W TO 22N52W TO 22N55W TO 
19N56W TO 15N53W TO 17N50W TO 20N50W WINDS 20 TO 33 KT. SEAS 11 
TO 18 FT IN SE SWELL. REMAINDER OF AREA WITHIN 24N48W TO 24N53W 
TO 21N57W TO 15N56W TO 14N52W TO 19N46W TO 24N48W WINDS 20 KT OR
LESS. SEAS 8 TO 13 FT IN MIXED SWELL.
.24 HOUR FORECAST HURRICANE LEE NEAR 19.6N 57.1W. MAXIMUM 
SUSTAINED WINDS 150 KT GUSTS 185 KT. TROPICAL STORM FORCE WINDS 
WITHIN 140 NM NE QUADRANT...130 NM SE QUADRANT...70 NM SW 
QUADRANT...AND 110 NM NW QUADRANT. SEAS 12 FT OR GREATER WITHIN 
270 NM N AND 180 NM S SEMICIRCLES WITH SEAS TO 40 FT.. ELSEWHERE 
WITHIN 22N53W TO 24N56W TO 22N59W TO 19N59W TO 17N56W TO 18N54W 
TO 22N53W WINDS 20 TO 33 KT. SEAS 12 TO 20 FT IN SE SWELL. 
REMAINDER OF AREA WITHIN 26N53W TO 27N57W TO 20N63W TO 15N60W TO 
15N55W TO 19N51W TO 26N53W...INCLUDING IN ATLANTIC EXPOSURES AND 
PASSAGES...WINDS 20 KT OR LESS. SEAS 8 TO 13 FT IN MIXED SWELL.
.48 HOUR FORECAST HURRICANE LEE NEAR 21.2N 60.2W. MAXIMUM 
SUSTAINED WINDS 145 KT GUSTS 175 KT. TROPICAL STORM FORCE WINDS 
WITHIN 140 NM NE QUADRANT...130 NM SE QUADRANT...90 NM SW 
QUADRANT...AND 120 NM NW QUADRANT. SEAS 12 FT OR GREATER WITHIN 
300 NM NE AND 180 NM SW SEMICIRCLES WITH SEAS TO 40 FT. ELSEWHERE
WITHIN 23N56W TO 25N59W TO 25N62W TO 22N63W TO 19N59W TO 19N57W 
TO 23N56W WINDS 20 TO 33 KT. SEAS 11 TO 20 FT IN SE TO S SWELL. 
REMAINDER OF AREA WITHIN 30N56W TO 30N64W TO 20N69W TO 16N60W TO 
18N56W TO 23N54W TO 30N56W...INCLUDING IN ATLANTIC EXPOSURES AND 
PASSAGES...WINDS 20 KT OR LESS. SEAS 8 TO 13 FT IN MIXED SWELL.
.72 HOUR FORECAST HURRICANE LEE NEAR 22.4N 62.7W. MAXIMUM 
SUSTAINED WINDS 135 KT GUSTS 165 KT.
EXTENDED OUTLOOK...USE FOR GUIDANCE ONLY...ERRORS MAY BE LARGE.
.96 HOUR FORECAST HURRICANE LEE NEAR 23.3N 65.1W. MAXIMUM 
SUSTAINED WINDS 130 KT GUSTS 160 KT.
.120 HOUR FORECAST HURRICANE LEE NEAR 24.4N 67.1W. MAXIMUM 
SUSTAINED WINDS 120 KT GUSTS 145 KT.

...ATLC TROPICAL STORM WARNING...
.TROPICAL STORM MARGOT E OF AREA NEAR 17.4N 30.8W 1004 MB AT 
0900 UTC SEP 08 MOVING WNW OR 290 DEG AT 14 KT. MAXIMUM SUSTAINED
WINDS 35 KT GUSTS 45 KT. TROPICAL STORM FORCE WINDS WITHIN 20 NM
N SEMICIRCLE AND 0 NM S SEMICIRCLE. SEAS 12 FT OR GREATER WITHIN
0 NM S SEMICIRCLE...30 NM NE QUADRANT AND 15 NM NW QUADRANT WITH
SEAS TO 13 FT.
.24 HOUR FORECAST TROPICAL STORM MARGOT NEAR 19.4N 35.7W. 
MAXIMUM SUSTAINED WINDS 45 KT GUSTS 55 KT. TROPICAL STORM FORCE 
WINDS WITHIN 30 NM S SEMICIRCLE...60 NM NE QUADRANT AND 40 NM NW 
QUADRANT. SEAS 12 FT OR GREATER WITHIN 75 NM N SEMICIRCLE AND 30 
NM S SEMICIRCLE WITH SEAS TO 17 FT. ELSEWHERE OVER FORECAST 
WATERS WITHIN 21N35W TO 21N36W TO 21N37W TO 19N37W TO 20N36W TO 
19N35W TO 21N35W WINDS 20 TO 33 KT. SEAS 9 TO 14 FT IN E TO SE 
SWELL. REMAINDER OF AREA WITHIN 23N35W TO 22N38W TO 20N38W TO 
15N36W TO 14N35W TO 23N35W WINDS 20 KT OR LESS. SEAS 8 TO 12 FT 
IN NE TO E SWELL.
.48 HOUR FORECAST TROPICAL STORM MARGOT NEAR 21.9N 39.5W. 
MAXIMUM SUSTAINED WINDS 55 KT GUSTS 65 KT. TROPICAL STORM FORCE 
WINDS WITHIN 90 NM NE QUADRANT...60 NM SE QUADRANT...40 NM SW 
QUADRANT...AND 80 NM NW QUADRANT. SEAS 12 FT OR GREATER WITHIN 
180 NM N AND 90 NM S SEMICIRCLES WITH SEAS TO 20 FT. ELSEWHERE 
WITHIN 24N37W TO 25N39W TO 24N41W TO 23N41W TO 22N40W TO 21N37W 
TO 24N37W WINDS 20 TO 33 KT. SEAS 11 TO 16 FT IN SE SWELL. 
REMAINDER OF AREA WITHIN 24N35W TO 27N38W TO 25N42W TO 19N43W TO 
17N40W TO 20N35W TO 24N35W WINDS 20 KT OR LESS. SEAS 8 TO 12 FT 
IN MIXED SWELL.
.72 HOUR FORECAST HURRICANE MARGOT NEAR 25.2N 41.4W. MAXIMUM 
SUSTAINED WINDS 65 KT GUSTS 80 KT.
EXTENDED OUTLOOK...USE FOR GUIDANCE ONLY...ERRORS MAY BE LARGE.
.96 HOUR FORECAST HURRICANE MARGOT NEAR 28.3N 42.5W. MAXIMUM 
SUSTAINED WINDS 75 KT GUSTS 90 KT.
.120 HOUR FORECAST HURRICANE MARGOT NEAR 31.4N 43.1W. MAXIMUM 
SUSTAINED WINDS 80 KT GUSTS 100 KT.

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 25N35W TO 26N36W TO 25N37W TO 23N38W TO 22N36W TO
23N35W TO 25N35W WINDS 20 KT OR LESS. SEAS 8 TO 9 FT IN MIXED N 
AND NE SWELL.
.24 HOUR FORECAST CONDITIONS IMPROVE. WINDS 20 KT OR LESS. SEAS 
LESS THAN 8 FT.

.REMAINDER OF AREA WINDS 20 KT OR LESS. SEAS LESS THAN 8 FT.

$$
.FORECASTER STRIPLING. NATIONAL HURRICANE CENTER.