FZNT01 KWBC 130356
HSFAT1

HIGH SEAS FORECAST FOR METAREA IV
NWS OCEAN PREDICTION CENTER WASHINGTON DC
0430 UTC WED SEP 13 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SUPERSEDED BY NEXT ISSUANCE IN 6 HOURS 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).

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 N OF 31N WILL BE
LIMITED TO WINDS OF 25 TO 35 KNOTS AND HIGHER, AND SEAS OF 
12 FEET OR GREATER, ALONG WITH FREEZING SPRAY, DENSE FOG, AND 
VOLCANIC ASH. LESSER CONDITIONS WILL BE INCLUDED FOR WARNING 
CONDITIONS AND TO
PRESERVE CONTINUITY WHERE APPROPRIATE. SEND FEEDBACK VIA 
HTTPS://OCEAN.WEATHER.GOV/CONTACT/INDEX.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 0000 UTC SEP 13. 
24 HOUR FORECAST VALID 0000 UTC SEP 14.
48 HOUR FORECAST VALID 0000 UTC SEP 15.

.WARNINGS.

...HURRICANE WARNING...
.HURRICANE MARGOT NEAR 32.7N 39.7W 975 MB AT 0300 UTC SEP 13
MOVING N OR 350 DEG AT 10 KT. MAXIMUM SUSTAINED WINDS 75 KT GUSTS
90 KT. TROPICAL STORM FORCE WINDS WITHIN 230 NM NE QUADRANT...150
NM SE QUADRANT...120 NM SW QUADRANT...AND 160 NM NW QUADRANT. 
SEAS 12 FT OR GREATER WITHIN 270 NM NE...280 NM SE...300 NM
SW...AND 240 NM NW QUADRANTS WITH SEAS TO 32 FT. ELSEWHERE FROM
31N TO 38N BETWEEN 35W AND 48W WINDS 20 TO 33 KT. SEAS TO 12 FT.
.24 HOUR FORECAST HURRICANE MARGOT NEAR 35.1N 40.8W. MAXIMUM
SUSTAINED WINDS 70 KT GUSTS 85 KT. TROPICAL STORM FORCE WINDS
WITHIN 180 NM NE QUADRANT...170 NM SE QUADRANT...140 NM SW
QUADRANT...AND 160 NM NW QUADRANT. SEAS 12 FT OR GREATER WITHIN
360 NM NE...300 NM SE...360 NM SW...AND 300 NM NW QUADRANTS WITH
SEAS TO 32 FT. ELSEWHERE FROM 31N TO 40N BETWEEN 35W AND 49W
WINDS 20 TO 33 KT. SEAS TO 12 FT.
.48 HOUR FORECAST HURRICANE MARGOT NEAR 36.9N 40.2W. MAXIMUM
SUSTAINED WINDS 70 KT GUSTS 85 KT. TROPICAL STORM FORCE WINDS
WITHIN 170 NM NE QUADRANT...160 NM SE QUADRANT...130 NM SW
QUADRANT...AND 160 NM NW QUADRANT. SEAS 12 FT OR GREATER WITHIN
300 NM NE...300 NM SE...330 NM SW...AND 300 NM NW QUADRANTS WITH
SEAS TO 30 FT. ELSEWHERE FROM 31N TO 43N BETWEEN 35W AND 48W
WINDS 20 TO 33 KT. SEAS TO 12 FT.
.72 HOUR FORECAST TROPICAL STORM MARGOT NEAR 37.5N 40.6W. MAXIMUM
SUSTAINED WINDS 60 KT GUSTS 75 KT. 
EXTENDED OUTLOOK...USE FOR GUIDANCE ONLY...ERRORS MAY BE LARGE.
.96 HOUR FORECAST TROPICAL STORM MARGOT NEAR 38.4N 42.4W. MAXIMUM
SUSTAINED WINDS 50 KT GUSTS 60 KT.
.120 HOUR FORECAST TROPICAL STORM MARGOT NEAR 40.6N 42.0W.
MAXIMUM SUSTAINED WINDS 45 KT GUSTS 55 KT.

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

...HURRICANE WARNING...
.EXCEPT WHERE NOTED BELOW IN ASSOCIATION WITH HURRICANE
LEE...FROM 31N TO 33N BETWEEN 60W AND 70W WINDS TO 25 KT. SEAS TO
11 FT. 
.24 HOUR FORECAST EXCEPT WHERE NOTED BELOW IN ASSOCIATION WITH
HURRICANE LEE...FROM 31N TO 34N BETWEEN 61W AND 73W WINDS 20 TO
33 KT. SEAS 10 TO 20 FT. 
.48 HOUR FORECAST HURRICANE LEE NEAR 32.1N 67.9W. MAXIMUM
SUSTAINED WINDS 80 KT GUSTS 100 KT. TROPICAL STORM FORCE WINDS
WITHIN 250 NM NE...240 NM SE...180 NM SW...AND 210 NM NW
QUADRANTS. SEAS 12 FT OR GREATER WITHIN 420 NM NE AND 390 NM SW
SEMICIRCLES WITH SEAS TO 42 FT. ELSEWHERE FROM 31N TO 40N BETWEEN
60W AND 78W WINDS 20 TO 33 KT. SEAS TO 12 FT.   

...GALE WARNING...
.LOW 66N67W 991 MB MOVING N 05 KT. WITHIN 360 NM E SEMICIRCLE
WINDS 25 TO 35 KT. SEAS TO 10 FT.
.12 HOUR FORECAST COMPLEX LOW WITH MAIN CENTER 69N65W 990 MB. N
OF 63N BETWEEN THE GREENLAND COAST AND 58W WINDS 30 TO 45 KT.
SEAS 9 TO 17 FT.
.24 HOUR FORECAST LOW 68N67W 995 MB. WITHIN 60 NM W OF THE
GREENLAND COAST N OF 61N WINDS 25 TO 35 KT. SEAS 8 TO 13 FT.
ELSEWHERE N OF 60N W OF GREENLAND WINDS 20 TO 30 KT. SEAS TO 10
FT.     
.48 HOUR FORECAST LOW 67N63W 1006 MB. WITHIN 300 NM E AND 360 NM
S QUADRANTS WINDS 20 TO 30 KT. SEAS TO 9 FT.

.SYNOPSIS AND FORECAST.

.LOW 48N38W 1017 MB MOVING S 05 KT. WITHIN 180 NM N AND NW
QUADRANTS WINDS TO 25 KT. SEAS TO 8 FT.
.24 HOUR FORECAST LOW 47N37W 1020 MB. WITHIN 180 NM N AND NW
QUADRANTS WINDS TO 25 KT. SEAS TO 8 FT.
.48 HOUR FORECAST LOW 45N38W 1022 MB. WITHIN 180 NM N SEMICIRCLE
WINDS TO 25 KT. SEAS TO 8 FT. 

.LOW E OF AREA NEAR 62N33W 1009 MB MOVING NE 10 KT. WITHIN 360 NM
SW AND 180 NM NW QUADRANTS WINDS 20 TO 30 KT. SEAS TO 9 FT. 
.24 HOUR FORECAST WITHIN 180 NM S OF A LINE FROM 59N35W TO 60N44W
WINDS TO 25 KT. SEAS TO 8 FT. 
.48 HOUR FORECAST CONDITIONS E OF AREA. 
 
.48 HOUR FORECAST LOW 58N54W 1010 MB. WITHIN 480 NM E AND SE
QUADRANTS WINDS TO 25 KT. SEAS TO 8 FT. 

.DENSE FOG. VSBY OCCASIONALLY LESS THAN 1 NM FROM 42N TO 46N
BETWEEN 48W AND 68W.
.24 HOUR FORECAST CONDITIONS IMPROVED.
.48 HOUR FORECAST DENSE FOG FROM 42N TO 60N BETWEEN 46W AND 68W.

.FORECASTER ACHORN. OCEAN PREDICTION CENTER.

NWS NATIONAL HURRICANE CENTER MIAMI FL

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

SYNOPSIS VALID 0000 UTC WED SEP 13.
24 HOUR FORECAST VALID 0000 UTC THU SEP 14.
48 HOUR FORECAST VALID 0000 UTC FRI SEP 15.

.WARNINGS.

...ATLC HURRICANE WARNING...
.HURRICANE LEE NEAR 25.3N 66.7W 946 MB AT 0300 UTC SEP 13 MOVING
NW OR 320 DEG AT 6 KT. MAXIMUM SUSTAINED WINDS 100 KT GUSTS 120
KT. TROPICAL STORM FORCE WINDS WITHIN 210 NM NE QUADRANT...200
NM SE QUADRANT...150 NM SW QUADRANT...AND 170 NM NW QUADRANT.
SEAS 12 FT OR GREATER WITHIN 360 NM NE QUADRANT...390 NM SE
QUADRANT...300 NM SW QUADRANT...AND 375 NM NW QUADRANT WITH SEAS
TO 42 FT. ELSEWHERE WITHIN 30N64W TO 30N68W TO 26N72W TO 21N66W
TO 
21N63W TO 25N61W TO 30N64W WINDS 20 TO 33 KT. SEAS 12 TO 22 FT 
IN SE TO S SWELL. REMAINDER OF AREA WITHIN 28N55W TO 30N78W TO 
22N74W TO 18N68W TO 18N62W TO 28N55W...INCLUDING IN MONA PASSAGE 
AND IN ATLANTIC EXPOSURES AND PASSAGES...WINDS 20 KT OR LESS. 
SEAS 8 TO 15 FT IN MIXED SWELL.
.24 HOUR FORECAST HURRICANE LEE NEAR 27.7N 67.8W. MAXIMUM 
SUSTAINED WINDS 95 KT GUSTS 115 KT. TROPICAL STORM FORCE WINDS 
WITHIN 230 NM NE QUADRANT...210 NM SE QUADRANT...170 NM SW 
QUADRANT...AND 180 NM NW QUADRANT. SEAS 12 FT OR GREATER WITHIN 
360 NM E AND 375 NM W SEMICIRCLES WITH SEAS TO 45 FT. ELSEWHERE 
WITHIN 30N61W TO 31N72W TO 28N73W TO 24N70W TO 22N66W TO 24N62W 
TO 30N61W WINDS 20 TO 33 KT. SEAS 14 TO 22 FT IN MIXED SWELL. 
REMAINDER OF AREA WITHIN 27N54W TO 31N63W TO 31N80W TO 22N74W TO 
18N68W TO 19N62W TO 27N54W...INCLUDING IN ATLANTIC EXPOSURES AND 
PASSAGES...WINDS 20 KT OR LESS. SEAS 8 TO 16 FT IN MIXED SWELL. 
.48 HOUR FORECAST HURRICANE LEE N OF AREA NEAR 32.1N 67.9W. 
MAXIMUM SUSTAINED WINDS 80 KT GUSTS 100 KT. TROPICAL STORM FORCE 
WINDS WITHIN 250 NM NE QUADRANT...240 NM SE QUADRANT...180 NM SW 
QUADRANT...AND 210 NM NW QUADRANT. SEAS 12 FT OR GREATER WITHIN 
420 NM NE AND 390 NM SW SEMICIRCLES WITH SEAS TO 40 FT. ELSEWHERE
WITHIN 31N64W TO 31N70W TO 30N69W TO 29N67W TO 30N65W TO 31N64W 
WINDS 20 TO 33 KT. SEAS 15 TO 34 FT IN MIXED SWELL. REMAINDER OF 
AREA WITHIN 31N53W TO 27N65W TO 31N74W TO 28N80W TO 20N70W TO 
24N53W TO 31N53W...INCLUDING ATLANTIC EXPOSURES...WINDS 20 KT OR 
LESS. SEAS 8 TO 16 FT IN MIXED SWELL.
.72 HOUR FORECAST HURRICANE LEE NEAR 38.0N 66.6W. MAXIMUM 
SUSTAINED WINDS 75 KT GUSTS 90 KT.
EXTENDED OUTLOOK...USE FOR GUIDANCE ONLY...ERRORS MAY BE LARGE.
.96 HOUR FORECAST POST-TROPICAL EXTRATROPICAL LEE NEAR 44.0N 
66.4W. MAXIMUM SUSTAINED WINDS 60 KT GUSTS 75 KT.
.120 HOUR FORECAST POST-TROPICAL EXTRATROPICAL LEE NEAR 48.5N 
62.0W. MAXIMUM SUSTAINED WINDS 40 KT GUSTS 50 KT.

...ATLC HURRICANE WARNING...
.HURRICANE MARGOT N OF AREA NEAR 32.7N 39.7W 975 MB AT 0300 UTC 
SEP 13 MOVING N OR 350 DEG AT 10 KT. MAXIMUM SUSTAINED WINDS 75 
KT GUSTS 90 KT. TROPICAL STORM FORCE WINDS WITHIN 230 NM NE 
QUADRANT...150 NM SE QUADRANT...120 NM SW QUADRANT...AND 160 NM 
NW QUADRANT. SEAS 12 FT OR GREATER WITHIN 270 NM NE QUADRANT... 
280 NM SE QUADRANT...300 NM SW QUADRANT...AND 240 NM NW QUADRANT 
WITH SEAS TO 32 FT. ELSEWHERE WITHIN 31N35W TO 31N43W TO 30N42W 
TO 29N40W TO 29N37W TO 31N35W WINDS 20 TO 33 KT. SEAS 12 TO 18 FT
IN W TO NW SWELL. REMAINDER OF AREA WITHIN 31N35W TO 30N40W TO 
31N43W TO 30N52W TO 26N44W TO 27N35W TO 31N35W WINDS 20 KT OR 
LESS. SEAS 8 TO 14 FT IN N TO NE SWELL.
.24 HOUR FORECAST HURRICANE MARGOT N OF AREA NEAR 35.1N 40.8W. 
MAXIMUM SUSTAINED WINDS 70 KT GUSTS 85 KT. TROPICAL STORM FORCE 
WINDS WITHIN 180 NM NE QUADRANT...170 NM SE QUADRANT...140 NM SW 
QUADRANT...AND 160 NM NW QUADRANT. OVER FORECAST WATERS WITHIN 
31N39W TO 31N41W TO 31N39W SW WINDS 20 TO 25 KT. SEAS 11 TO 12 FT
IN NW SWELL. REMAINDER OF AREA WITHIN 31N35W TO 31N54W TO 26N53W
TO 26N44W TO 31N35W WINDS 20 KT OR LESS. SEAS 8 TO 13 FT IN N TO
NE SWELL. 
.48 HOUR FORECAST HURRICANE MARGOT WELL N OF AREA NEAR 36.9N 
40.2W. MAXIMUM SUSTAINED WINDS 70 KT GUSTS 85 KT. TROPICAL STORM 
FORCE WINDS WITHIN 160 NM NW AND SE QUADRANTS...170 NM NE 
QUADRANT AND 130 NM SW QUADRANT. OVER FORECAST WATERS WITHIN 
29N42W TO 31N38W TO 31N52W TO 27N52W TO 24N49W TO 29N42W WINDS 20
KT OR LESS. SEAS 8 TO 10 FT IN N TO NE SWELL.
.72 HOUR FORECAST TROPICAL STORM MARGOT NEAR 37.5N 40.6W. 
MAXIMUM SUSTAINED WINDS 60 KT GUSTS 75 KT.
EXTENDED OUTLOOK...USE FOR GUIDANCE ONLY...ERRORS MAY BE LARGE.
.96 HOUR FORECAST TROPICAL STORM MARGOT NEAR 38.4N 42.4W. 
MAXIMUM SUSTAINED WINDS 50 KT GUSTS 60 KT.
.120 HOUR FORECAST TROPICAL STORM MARGOT NEAR 40.6N 42.0W. 
MAXIMUM SUSTAINED WINDS 45 KT GUSTS 55 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 30 HOUR FORECAST WITHIN 18N35W TO 19N37W TO 18N38W TO
17N37W TO 15N36W TO 15N35W TO 18N35W WINDS 20 KT OR LESS. SEAS 8
FT IN MIXED N AND E SWELL.
.48 HOUR FORECAST WITHIN 20N35W TO 22N40W TO 21N43W TO 18N42W TO
15N37W TO 12N35W TO 20N35W WINDS 20 KT OR LESS. SEAS 8 TO 9 FT 
IN MIXED SWELL.

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


.FORECASTER STRIPLING. NATIONAL HURRICANE CENTER.

$$