FZNT01 KWBC 120958
HSFAT1

HIGH SEAS FORECAST FOR METAREA IV
NWS OCEAN PREDICTION CENTER WASHINGTON DC
1030 UTC TUE SEP 12 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SUPERSEDED BY NEXT ISSUANCE IN 6 HOURS 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 0600 UTC SEP 12. 
24 HOUR FORECAST VALID 0600 UTC SEP 13.
48 HOUR FORECAST VALID 0600 UTC SEP 14.

.WARNINGS.

...HURRICANE WARNING...
.FROM 31N TO 33N BETWEEN 35W AND 44W WINDS 20 TO 30 KT. SEAS 8 TO
14 FT. 
.24 HOUR FORECAST HURRICANE MARGOT NEAR 32.7N 40.8W. MAXIMUM
SUSTAINED WINDS 85 KT GUSTS TO 105 KT. TROPICAL STORM FORCE WINDS
WITHIN 150 NM NE...140 NM SE...130 NM SW...AND 160 NM NW
QUADRANTS. SEAS 12 FT OR GREATER WITHIN 270 NM NE...270 NM
SE...180 NM SW...AND 210 NM NW QUADRANTS WITH SEAS TO 32 FT.
ELSEWHERE FROM 31N TO 39N BETWEEN 35W AND 49W WINDS 20 TO 33 KT.
SEAS TO 12 FT. 
.48 HOUR FORECAST HURRICANE MARGOT NEAR 35.0N 42.1W. MAXIMUM
SUSTAINED WINDS 85 KT GUSTS TO 105 KT. TROPICAL STORM FORCE WINDS
WITHIN 160 NM NE...170 NM SE...130 NM SW...AND 150 NM NW
QUADRANTS. SEAS 12 FT OR GREATER WITHIN 360 NM NE...270 NM
SE...330 NM SW...AND 300 NM NW QUADRANTS WITH SEAS TO 34 FT.
ELSEWHERE FROM 31N TO 40N BETWEEN 36W AND 50W WINDS 20 TO 33 KT.
SEAS TO 12 FT.  

...GALE WARNING...
.WITHIN 60 NM W OF THE GREENLAND COAST N OF 65N WINDS TO 25 KT.
SEAS TO 8 FT.
.24 HOUR FORECAST LOW 67N73W 988 MB. WITHIN 420 NM E AND 540 NM S
QUADRANTS WINDS 25 TO 35 KT. SEAS TO 12 FT.
.36 HOUR FORECAST LOW 66N67W 990 MB. WITHIN 90 NM W OF THE
GREENLAND COAST N OF 63N WINDS 30 TO 45 KT. SEAS 9 TO 16 FT. 
.48 HOUR FORECAST LOW 67N66W 998 MB. WITHIN 360 NM E SEMICIRCLE
WINDS 20 TO 30 KT. SEAS TO 10 FT.

.SYNOPSIS AND FORECAST.

.LOW 50N42W 1015 MB MOVING SE 10 KT. WITHIN 120 NM N AND NW
QUADRANTS WINDS TO 25 KT. SEAS LESS THAN 8 FT. 
.24 HOUR FORECAST LOW 48N38W 1018 MB. WITHIN 180 NM NW SEMICIRCLE
WINDS TO 25 KT. SEAS TO 8 FT. 
.48 HOUR FORECAST LOW 46N35W 1020 MB. WITHIN 180 NM NW SEMICIRCLE
WINDS TO 25 KT. SEAS TO 8 FT.

 .LOW 62N38W 1009 MB MOVING E 10 KT. WITHIN 240 NM S AND 120 NM W
AND NW QUADRANTS WINDS 20 TO 30 KT. SEAS TO 9 FT. 
.24 HOUR FORECAST LOW E OF AREA NEAR 62N31W 1009 MB. WITHIN 420
NM SW AND 240 NM W QUADRANTS WINDS 20 TO 30 KT. SEAS TO 9 FT. 
.48 HOUR FORECAST WITHIN 120 NM SW OF A LINE FROM 58N35W TO
60N42W WINDS TO 25 KT. SEAS TO 8 FT. 
 
.EXCEPT WHERE DESCRIBED IN PART II BELOW WITH HURRICANE
LEE...FROM 31N TO 33N BETWEEN 56W AND 70W WINDS TO 25 KT. SEAS TO
11 FT.
.24 HOUR FORECAST EXCEPT WHERE DESCRIBED IN PART II BELOW WITH
HURRICANE LEE...FROM 31N TO 33N BETWEEN 60W AND 72W WINDS TO 25
KT. SEAS 8 TO 14 FT.   
.48 HOUR FORECAST EXCEPT WHERE DESCRIBED IN PART II BELOW WITH
HURRICANE LEE...FROM 31N TO 35N BETWEEN 60W AND 75W WINDS 20 TO
33 KT. SEAS 10 TO 21 FT. 

.24 HOUR FORECAST LOW 45N56W 1018 MB. WITHIN 240 NM N SEMICIRCLE
WINDS TO 25 KT. SEAS LESS THAN 8 FT.
.48 HOUR FORECAST LOW 45N50W 1019 MB. WINDS LESS THAN 25 KT. SEAS
LESS THAN 8 FT.

.DENSE FOG. VSBY OCCASIONALLY LESS THAN 1 NM FROM 42N TO 49N W OF
54W
.24 HOUR FORECAST DENSE FOG FROM 43N TO 46N BETWEEN 49W AND 60W.
.48 HOUR FORECAST DENSE FOG FROM 42N TO 46N BETWEEN 45W AND 62W.

.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 0600 UTC TUE SEP 12.
24 HOUR FORECAST VALID 0600 UTC WED SEP 13.
48 HOUR FORECAST VALID 0600 UTC THU SEP 14.

.WARNINGS.

...ATLC HURRICANE WARNING...
.HURRICANE LEE NEAR 24.0N 65.4W 948 MB AT 0900 UTC SEP 12 MOVING
WNW OR 290 DEG AT 6 KT. MAXIMUM SUSTAINED WINDS 100 KT GUSTS 120
KT. TROPICAL STORM FORCE WINDS WITHIN 150 NM NW AND SE
QUADRANTS...160 NM NE QUADRANT AND 120 NM SW QUADRANT. SEAS 12 
FT OR GREATER WITHIN 360 NM N SEMICIRCLE...270 NM SE QUADRANT 
AND 300 NM SW 
QUADRANT WITH SEAS TO 42 FT. ELSEWHERE WITHIN 26N61W TO 29N64W TO
27N70W TO 24N70W TO 20N65W TO 21N62W TO 26N61W WINDS 20 TO 33 
KT. SEAS 12 TO 23 FT IN SE SWELL. REMAINDER OF AREA WITHIN 
29N52W TO 28N62W TO 31N74W TO 26N76W TO 18N68W TO 18N61W TO 
29N52W...INCLUDING IN ATLANTIC EXPOSURES AND PASSAGES...WINDS 
20 KT OR LESS. SEAS 8 TO 15 FT IN MIXED SWELL.
.24 HOUR FORECAST HURRICANE LEE NEAR 25.3N 67.0W. MAXIMUM 
SUSTAINED WINDS 100 KT GUSTS 120 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 
330 NM NE AND 360 SW SEMICIRCLES WITH SEAS TO 42 FT. ELSEWHERE 
WITHIN 27N62W TO 30N64W TO 27N71W TO 24N71W TO 20N66W TO 24N62W 
TO 27N62W WINDS 20 TO 33 KT. SEAS 13 TO 23 FT IN SE TO S SWELL. 
REMAINDER OF AREA WITHIN 31N54W TO 28N62W TO 31N79W TO 22N74W TO 
18N61W TO 26N54W TO 31N54W...INCLUDING IN ATLANTIC EXPOSURES AND 
PASSAGES...WINDS 20 KT OR LESS. SEAS 8 TO 16 FT IN MIXED SWELL. 
.48 HOUR FORECAST HURRICANE LEE NEAR 28.3N 67.9W. MAXIMUM 
SUSTAINED WINDS 90 KT GUSTS 110 KT. TROPICAL STORM FORCE WINDS 
WITHIN 210 NM NE QUADRANT...200 NM SE QUADRANT...160 NM SW 
QUADRANT...AND 180 NM NW QUADRANT. SEAS 12 FT OR GREATER WITHIN 
420 NM NE AND 330 NM SW SEMICIRCLES WITH SEAS TO 45 FT. ELSEWHERE
WITHIN 31N62W TO 31N72W TO 26N73W TO 23N67W TO 25N62W TO 31N62W 
WINDS 20 TO 33 KT. SEAS 15 TO 24 FT IN MIXED SWELL. REMAINDER OF 
AREA WITHIN 31N55W TO 31N80W TO 22N74W TO 19N67W TO 19N62W TO 
25N54W TO 31N55W...INCLUDING IN ATLANTIC EXPOSURES AND 
PASSAGES...WINDS 20 KT OR LESS. SEAS 8 TO 15 FT IN MIXED SWELL.
.72 HOUR FORECAST HURRICANE LEE NEAR 32.9N 67.6W. MAXIMUM 
SUSTAINED WINDS 80 KT GUSTS 100 KT.
EXTENDED OUTLOOK...USE FOR GUIDANCE ONLY...ERRORS MAY BE LARGE.
.96 HOUR FORECAST HURRICANE LEE NEAR 39.0N 66.7W. MAXIMUM 
SUSTAINED WINDS 70 KT GUSTS 85 KT.
.120 HOUR FORECAST POST-TROPICAL EXTRATROPICAL LEE NEAR 44.5N 
66.0W. MAXIMUM SUSTAINED WINDS 50 KT GUSTS 60 KT.

...ATLC HURRICANE WARNING...
.HURRICANE MARGOT NEAR 29.3N 39.5W 979 MB AT 0900 UTC SEP 12
MOVING N OR 360 DEG AT 11 KT. MAXIMUM SUSTAINED WINDS 75 KT
GUSTS 90 KT. TROPICAL STORM FORCE WINDS WITHIN 120 NM N
SEMICIRCLE...90 NM SE QUADRANT AND 100 NM SW QUADRANT.  SEAS 12
FT OR GREATER WITHIN 180 NM NE QUADRANT...210 NM SE QUADRANT... 
165 NM SW QUADRANT...AND 150 NM NW QUADRANT WITH SEAS TO 27 FT. 
ELSEWHERE WITHIN 31N35W TO 31N44W TO 28N43W TO 26N39W TO 27N35W 
TO 31N35W WINDS 20 TO 33 KT. SEAS 12 TO 17 FT IN SE TO S SWELL. 
REMAINDER OF AREA WITHIN 27N35W TO 27N41W TO 31N47W TO 26N48W TO
23N43W TO 24N36W TO 27N35W WINDS 20 KT OR LESS. SEAS 8 TO 12 FT 
IN MIXED SWELL.
.24 HOUR FORECAST HURRICANE MARGOT N OF AREA NEAR 32.7N 40.8W. 
MAXIMUM SUSTAINED WINDS 85 KT GUSTS 105 KT. TROPICAL STORM FORCE 
WINDS WITHIN 150 NM NE QUADRANT...140 NM SE QUADRANT...130 NM SW 
QUADRANT...AND 160 NM NW QUADRANT. SEAS 12 FT OR GREATER WITHIN 
270 NM E SEMICIRCLE...180 NM SW AND 210 NM NW QUADRANTS WITH SEAS
TO 32 FT. ELSEWHERE OVER FORECAST WATERS WITHIN 31N36W TO 31N44W
TO 29N40W TO 29N38W TO 31N36W WINDS 20 TO 33 KT. SEAS 12 TO 17 
FT IN W TO NW SWELL. REMAINDER OF AREA WITHIN 31N35W TO 31N55W TO
28N54W TO 26N42W TO 26N35W TO 31N35W WINDS 20 KT OR LESS. SEAS 8
TO 12 FT IN MIXED SWELL.
.48 HOUR FORECAST HURRICANE MARGOT WELL N OF AREA NEAR 35.0N 
42.1W. MAXIMUM SUSTAINED WINDS 85 KT GUSTS 105 KT. TROPICAL STORM
FORCE WINDS WITHIN 160 NM NE QUADRANT...170 NM SE QUADRANT...130
NM SW QUADRANT...AND 150 NM NW QUADRANT. OVER FORECAST WATERS 
WITHIN 31N40.5W TO 31N43.5W TO 30.5N42.5W TO 30.5N41W TO 31N40.5W
SW WINDS 20 TO 25 KT. SEAS 11 TO 12 FT IN NW SWELL. REMAINDER OF
AREA WITHIN 31N35W TO 31N55W TO 26N55W TO 24N47W TO 26N41W TO 
31N35W WINDS 20 KT OR LESS. SEAS 8 TO 12 FT IN MIXED SWELL.
.72 HOUR FORECAST HURRICANE MARGOT NEAR 36.9N 41.6W. MAXIMUM 
SUSTAINED WINDS 75 KT GUSTS 90 KT.
EXTENDED OUTLOOK...USE FOR GUIDANCE ONLY...ERRORS MAY BE LARGE.
.96 HOUR FORECAST TROPICAL STORM MARGOT NEAR 38.2N 42.6W. 
MAXIMUM SUSTAINED WINDS 60 KT GUSTS 75 KT.
.120 HOUR FORECAST TROPICAL STORM MARGOT NEAR 40.4N 43.4W. 
MAXIMUM SUSTAINED WINDS 50 KT GUSTS 60 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 36 HOUR FORECAST WITHIN 20N35W TO 20N36W TO 19N36W TO
18N35W TO 20N35W WINDS 20 KT OR LESS. SEAS 8 FT IN MIXED E AND SE
SWELL.
.48 HOUR FORECAST WITHIN 22N35W TO 20N39W TO 17N39W TO 15N37W TO
14N35W TO 22N35W WINDS 20 KT OR LESS. SEAS 8 TO 9 FT IN MIXED NE
AND NW SWELL.

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


.FORECASTER STRIPLING. NATIONAL HURRICANE CENTER.

$$