FZNT01 KWBC 131618
HSFAT1

HIGH SEAS FORECAST FOR METAREA IV
NWS OCEAN PREDICTION CENTER WASHINGTON DC
1630 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SUPERSEDED BY NEXT ISSUANCE IN 6 HOURS 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 1200 UTC SEP 13. 
24 HOUR FORECAST VALID 1200 UTC SEP 14.
48 HOUR FORECAST VALID 1200 UTC SEP 15.

.WARNINGS.

...HURRICANE WARNING...
.HURRICANE MARGOT NEAR 34.1N 40.4W 970 MB AT 1500 UTC SEP 13
MOVING NNW OR 345 DEG AT 6 KT. MAXIMUM SUSTAINED WINDS 80 KT
GUSTS 100 KT. TROPICAL STORM FORCE WINDS WITHIN 200 NM NE
QUADRANT...190 NM SE QUADRANT...140 NM SW QUADRANT...AND 170 NM
NW QUADRANT.  SEAS 12 FT OR GREATER WITHIN 320 NM E
SEMICIRCLE...290 NM SW QUADRANT AND 300 NM NW QUADRANT WITH SEAS
TO 32 FT. ELSEWHERE FROM 31N TO 40N BETWEEN 35W AND 55W WINDS 20
TO 33 KT. SEAS TO 12 FT.
.24 HOUR FORECAST HURRICANE MARGOT NEAR 36.0N 40.2W. MAXIMUM
SUSTAINED WINDS 75 KT GUSTS 90 KT. TROPICAL STORM FORCE WINDS
WITHIN 170 NM E SEMICIRCLE...140 NM SW QUADRANT AND 150 NM NW
QUADRANT. SEAS 12 FT OR GREATER WITHIN 300 NM NE...280 NM
SE...300 NM SW...AND 360 NM NW QUADRANTS WITH SEAS TO 31 FT.
ELSEWHERE FROM 31N TO 46N BETWEEN 35W AND 55W WINDS 20 TO 33 KT.
SEAS TO 12 FT.
.48 HOUR FORECAST HURRICANE MARGOT NEAR 36.9N 39.4W. MAXIMUM
SUSTAINED WINDS 65 KT GUSTS 80 KT. TROPICAL STORM FORCE WINDS
WITHIN 150 NM NW AND SE QUADRANTS...190 NM NE QUADRANT AND 130 NM
SW QUADRANT. SEAS 12 FT OR GREATER WITHIN 420 NM NE...280 NM
SE...300 NM SW...AND 300 NM NW QUADRANTS WITH SEAS TO 27 FT.
ELSEWHERE FROM 31N TO 49N BETWEEN 35W AND 50W WINDS 20 TO 33 KT.
SEAS TO 12 FT.
.60 HOUR FORECAST TROPICAL STORM MARGOT NEAR 36.5N 39.4W. MAXIMUM
SUSTAINED WINDS 60 KT GUSTS 75 KT.
.72 HOUR FORECAST TROPICAL STORM MARGOT NEAR 36.3N 40.2W. MAXIMUM
SUSTAINED WINDS 50 KT GUSTS 60 KT. EXTENDED OUTLOOK...USE FOR
GUIDANCE ONLY...ERRORS MAY BE LARGE.
.96 HOUR FORECAST TROPICAL STORM MARGOT NEAR 36.0N 42.5W. MAXIMUM
SUSTAINED WINDS 45 KT GUSTS 55 KT.
.120 HOUR FORECAST TROPICAL STORM MARGOT NEAR 38.0N 42.5W.
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.

...GALE WARNING...
.COMPLEX LOW WITH MAIN CENTER 69N64W 990 MB MOVING NW 05 KT. N OF
63N BETWEEN GREENLAND AND 59W WINDS 30 TO 45 KT. SEAS 9 TO 15 FT.
ELSEWHERE W AND N OF A LINE FROM 57N60W TO 60N53W TO 63N50W WINDS
25 TO 35 KT. SEAS 8 TO 13 FT...HIGHEST SEAS N OF 64N E OF 61W.
.24 HOUR FORECAST COMPLEX LOW WITH MAIN CENTER N OF AREA 69N65W
1002 MB. WITHIN 420 NM S AND SE QUADRANTS WINDS 20 TO 30 KT. SEAS
TO 8 FT.
.48 HOUR FORECAST COMBINED LOW 66N60W 1006 MB. WITHIN 240 NM SW
QUADRANT WINDS LESS THAN 25 KT. SEAS LESS THAN 8 FT.

...GALE WARNING...
.24 HOUR FORECAST LOW INLAND NEAR 53N72W 1009 MB. FROM 47N TO 53N
BETWEEN 53W AND 62W WINDS TO 25 KT. SEAS LESS THAN 8 FT.
.48 HOUR FORECAST LOW 55N57W 1000 MB. FROM 47N TO 61N BETWEEN 63W
AND A LINE FROM 61N35W TO 54N35W TO 47N51W WINDS 25 TO 35 KT.
SEAS TO 11 FT.

.SYNOPSIS AND FORECAST.

.LOW E OF AREA NEAR 61N29W 1009 MB MOVING E 15 KT. WITHIN 420 NM
SW AND 300 NM W QUADRANTS WINDS TO 25 KT. SEAS TO 9 FT.
.24 HOUR FORECAST LOW AND CONDITIONS E OF AREA.

.LOW 47N39W 1021 MB MOVING S 05 KT. WITHIN 180 NM N QUADRANT
WINDS TO 25 KT. SEAS TO 8 FT.
.24 HOUR FORECAST LOW 46N36W 1024 MB. FROM 46N TO 49N E OF 44W
WINDS 20 TO 30 KT. SEAS TO 9 FT.
.48 HOUR FORECAST LOW DISSIPATED. CONDITIONS DESCRIBED BELOW WITH
HURRICANE LEE.

.EXCEPT WHERE DESCRIBED IN PART II BELOW WITH HURRICANE
LEE...FROM 31N TO 40N BETWEEN 55W AND 80W WINDS 20 TO 33 KT. SEAS
TO 12 FT.
.24 HOUR FORECAST EXCEPT WHERE DESCRIBED IN PART II BELOW WITH
HURRICANE LEE...FROM 31N TO 41N BETWEEN 55W AND 81W WINDS 20 TO
33 KT. SEAS TO 12 FT.
.48 HOUR FORECAST EXCEPT WHERE DESCRIBED IN PART II BELOW WITH
HURRICANE LEE...FROM 31N TO 47N BETWEEN 50W AND 81W WINDS 20 TO
33 KT. SEAS TO 12 FT.

.DENSE FOG. VSBY OCCASIONALLY LESS THAN 1 NM FROM 42N TO 50N
BETWEEN 64W AND 70W...AND N OF 64N E OF 60W.
.24 HOUR FORECAST DENSE FOG FROM 42N TO 50N BETWEEN 59W AND 69W.
.48 HOUR FORECAST DENSE FOG FROM 44N TO 60N BETWEEN 44W AND
60W...AND N OF 64N BETWEEN 56W AND 62W.

.FORECASTER EHRBAR. 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 1200 UTC WED SEP 13.
24 HOUR FORECAST VALID 1200 UTC THU SEP 14.
48 HOUR FORECAST VALID 1200 UTC FRI SEP 15.

.WARNINGS.

...ATLC HURRICANE WARNING...
.HURRICANE LEE NEAR 26.4N 67.2W 948 MB AT 1500 UTC SEP 13 MOVING 
NNW OR 345 DEG AT 8 KT. MAXIMUM SUSTAINED WINDS 100 KT GUSTS 120 
KT. TROPICAL STORM FORCE WINDS WITHIN 210 NM E SEMICIRCLE...160 
NM SW QUADRANT AND 170 NM NW QUADRANT. SEAS 12 FT OR GREATER 
WITHIN 375 NM NE AND SW QUADRANTS...450 NM NW QUADRANT AND 360 
NM SE QUADRANT WITH SEAS TO 45 FT. ELSEWHERE S OF 31N WITHIN 420 
NM NE QUADRANT...390 NM SE AND SW QUADRANTS AND 480 NM NW 
QUADRANT WINDS 20 TO 33 KT. SEAS 14 TO 22 FT IN SE TO S SWELL.
REMAINDER OF AREA FROM 18N TO 31N BETWEEN 58W AND 79W... 
INCLUDING IN ATLC EXPOSURES AND PASSAGES...WINDS 20 KT OR LESS. 
SEAS 8 TO 12 FT IN MIXED SWELL. 
.24 HOUR FORECAST HURRICANE LEE NEAR 29.6N 68.2W. MAXIMUM 
SUSTAINED WINDS 90 KT GUSTS 110 KT. TROPICAL STORM FORCE WINDS 
WITHIN 240 NM NE QUADRANT...230 NM SE QUADRANT...170 NM SW 
QUADRANT...AND 180 NM NW QUADRANT. SEAS 12 FT OR GREATER WITHIN 
WITHIN 420 NE AND 360 NM SW SEMICIRCLES WITH SEAS TO 43 FT. 
ELSEWHERE WITHIN 540 NM NE QUADRANT...420 NM SE AND SW QUADRANTS 
AND 510 NM NW QUADRANT WINDS 20 TO 33 KT. SEAS 14 TO 23 FT IN 
MIXED SWELL. REMAINDER OF AREA FROM 19N TO 31N BETWEEN 57W AND 
THE BAHAMAS AND ALSO N OF 27N BETWEEN 57W AND 80W WINDS 20 KT OR 
LESS. SEAS 8 TO 12 FT IN MIXED SWELL.
.48 HOUR FORECAST HURRICANE LEE N OF AREA NEAR 34.6N 67.6W. 
MAXIMUM SUSTAINED WINDS 80 KT GUSTS 100 KT. TROPICAL STORM FORCE 
WINDS WITHIN 250 NM NE QUADRANT...240 NM SE QUADRANT...190 NM SW 
QUADRANT...AND 220 NM NW QUADRANT. SEAS 12 FT OR GREATER WITHIN 
390 NM NE QUADRANT...480 NM SE QUADRANT...360 NM SW QUADRANT AND 
420 NM QUADRANT WITH SEAS TO 45 FT. ELSEWHERE OVER FORECAST 
WATERS N OF 28N BETWEEN 59W AND 74W WINDS 20 TO 33 KT. SEAS 13 
TO 22 FT IN MIXED SWELL. REMAINDER OF AREA FROM 20N TO 31N 
BETWEEN 55W AND THE BAHAMAS AND ALSO N OF 27N BETWEEN 55W AND 
80W WINDS 20 KT OR LESS. SEAS 8 TO 12 FT IN MIXED SWELL. 
.72 HOUR FORECAST HURRICANE LEE NEAR 41.1N 67.2W. MAXIMUM 
SUSTAINED WINDS 70 KT GUSTS 85 KT.
EXTENDED OUTLOOK...USE FOR GUIDANCE ONLY...ERRORS MAY BE LARGE.
.96 HOUR FORECAST POST-TROPICAL LEE NEAR 46.1N 66.6W. MAXIMUM 
SUSTAINED WINDS 50 KT GUSTS 60 KT.
.120 HOUR FORECAST POST-TROPICAL LEE NEAR 52.1N 56.4W. MAXIMUM 
SUSTAINED WINDS 35 KT GUSTS 45 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 HURRICANE MARGOT N OF AREA NEAR 34.1N 40.4W 970 MB AT 1500 
UTC SEP 13 MOVING NNW OR 345 DEG AT 6 KT. MAXIMUM SUSTAINED 
WINDS 80 KT GUSTS 100 KT. OVER FORECAST WATERS N OF 29N BETWEEN 
35W AND 42W S TO SW WINDS 20 TO 30 KT. SEAS 10 TO 15 FT. 
ELSEWHERE N OF 25N BETWEEN 35W AND 58W WINDS 20 KT OR LESS. 
SEAS 8 TO 10 FT IN NE TO E SWELL.
.24 HOUR FORECAST HURRICANE MARGOT WELL N OF AREA NEAR 36.0N 
40.2W. OVER FORECAST WATERS NW OF A LINE FROM 31N35W TO 23N45W 
TO 22N57W WINDS 20 KT OR LESS. SEAS 8 TO 11 FT IN N TO NE SWELL
...EXCEPT IN MIXED SWELL BETWEEN 49W AND 57W.
.48 HOUR FORECAST NW OF A LINE FROM 31N36W TO 21N55W WINDS 20 KT 
OR LESS. SEAS 8 TO 9 FT IN MIXED SWELL.   

.ATLC 12 HOUR FORECAST LOW PRES...POSSIBLE TROPICAL CYCLONE... 
NEAR 12N36W 1010 MB. FROM 15N TO 21N BETWEEN 29W AND 39W WINDS 
20 KT OR LESS. SEAS 8 FT IN N TO NE SWELL MIXED WITH SE SWELL.
.24 HOUR FORECAST LOW PRES...POSSIBLE TROPICAL CYCLONE...NEAR 
13N38W 1009 MB. FROM 14N TO 16N BETWEEN 35W AND 38W E WINDS 
20 TO 25 KT. SEAS 8 TO 10 FT. FROM 09N TO 13N BETWEEN 35W AND 
37W S TO SW WINDS 20 TO 25 KT. SEAS TO 8 FT.
.48 HOUR FORECAST LOW PRES...POSSIBLE TROPICAL CYCLONE...NEAR 
14N42W 1008 MB. FROM 15N TO 21N BETWEEN 35W AND 42W E TO SE 
WINDS 20 TO 25 KT. SEAS 8 TO 10 FT. ELSEWHERE FROM 10N TO 26N 
BETWEEN 35W AND 49W WINDS 20 KT OR LESS. SEAS 8 TO 9 FT IN
E TO SE SWELL...EXCEPT IN MIXED SWELL N OF 21N.

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


.FORECASTER AGUIRRE. NATIONAL HURRICANE CENTER.

$$