FZNT01 KWBC 132226
HSFAT1

HIGH SEAS FORECAST FOR METAREA IV
NWS OCEAN PREDICTION CENTER WASHINGTON DC
2230 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SUPERSEDED BY NEXT ISSUANCE IN 6 HOURS 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 1800 UTC SEP 13. 
24 HOUR FORECAST VALID 1800 UTC SEP 14.
48 HOUR FORECAST VALID 1800 UTC SEP 15.

.WARNINGS.

...HURRICANE WARNING...
.HURRICANE MARGOT NEAR 34.7N 40.6W 971 MB AT 2100 UTC SEP 13
MOVING N OR 360 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 290 NM W
SEMICIRCLE...360 NM NE QUADRANT AND 300 NM SE QUADRANT WITH SEAS
TO 32 FT. ELSEWHERE FROM 31N TO 42N BETWEEN 35W AND 55W WINDS 20
TO 33 KT. SEAS TO 12 FT.
.24 HOUR FORECAST HURRICANE MARGOT NEAR 36.4N 40.0W. MAXIMUM
SUSTAINED WINDS 70 KT GUSTS 85 KT. TROPICAL STORM FORCE WINDS
WITHIN 160 NM NE QUADRANT...170 NM SE QUADRANT...130 NM SW
QUADRANT...AND 150 NM NW QUADRANT. SEAS 12 FT OR GREATER WITHIN
300 NM NE...270 NM SE AND SW...AND 330 NM NW QUADRANTS WITH SEAS
TO 28 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 36.5N 39.4W. MAXIMUM
SUSTAINED WINDS 65 KT GUSTS 80 KT. TROPICAL STORM FORCE WINDS
WITHIN 200 NM NE QUADRANT...150 NM SE QUADRANT...130 NM SW
QUADRANT...AND 160 NM NW QUADRANT. SEAS 12 FT OR GREATER WITHIN
420 NM NE...270 NM SE...240 NM SW...AND 360 NM NW QUADRANTS WITH
SEAS TO 26 FT. ELSEWHERE FROM 31N TO 47N BETWEEN 35W AND 52W
WINDS 20 TO 33 KT. SEAS TO 12 FT.
.60 HOUR FORECAST TROPICAL STORM MARGOT NEAR 36.0N 39.9W. MAXIMUM
SUSTAINED WINDS 60 KT GUSTS 75 KT.
.72 HOUR FORECAST TROPICAL STORM MARGOT NEAR 35.6N 41.0W. 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 36.5N 43.0W. MAXIMUM
SUSTAINED WINDS 45 KT GUSTS 55 KT.
.120 HOUR FORECAST TROPICAL STORM MARGOT NEAR 39.5N 41.5W.
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 69N65W 991 MB MOVING NW 05 KT. N OF
63N BETWEEN GREENLAND AND 56W WINDS 30 TO 45 KT. SEAS 9 TO 16 FT.
ELSEWHERE W AND N OF A LINE FROM 57N60W TO 60N51W TO 62N50W WINDS
25 TO 35 KT. SEAS 8 TO 13 FT...HIGHEST SEAS N OF 65N E OF 58W.
.24 HOUR FORECAST COMPLEX LOW WITH MAIN CENTER N OF AREA 69N63W
1006 MB. WITHIN 360 NM SE QUADRANT WINDS 20 TO 30 KT. SEAS TO 9
FT.
.48 HOUR FORECAST LOW DISSIPATED. CONDITIONS DIMINISHED.

...GALE WARNING...
.24 HOUR FORECAST LOW INLAND NEAR 54N71W 1008 MB. FROM 48N TO 56N
BETWEEN 50W AND 61W WINDS TO 25 KT. SEAS LESS THAN 8 FT.
.42 HOUR FORECAST LOW 57N54W 1000 MB. WITHIN 480 NM SE AND 600 NM
E QUADRANTS 25 TO 35 KT. SEAS TO 11 FT.
.48 HOUR FORECAST LOW 60N49W 995 MB. WITHIN 480 NM SE AND S
QUADRANTS WINDS 25 TO 40 KT. SEAS 8 TO 12 FT. ELSEWHERE FROM 47N
TO 63N BETWEEN 35W AND 63W WINDS 20 TO 30 KT. SEAS TO 9 FT.

...GALE WARNING...
.30 HOUR FORECAST...EXCEPT WHERE DESCRIBED WITH HURRICANE LEE...W
OF A LINE FROM 37N71W TO 33N75W WINDS 25 TO 35 KT. SEAS 9 TO 17
FT.
.48 HOUR FORECAST CONDITIONS DESCRIBED WITH HURRICANE LEE.

.SYNOPSIS AND FORECAST.

.LOW E OF AREA NEAR 64N32W 1010 MB MOVING SE 15 KT. WITHIN 480 NM
SW QUADRANT WINDS TO 25 KT. SEAS TO 8 FT.
.24 HOUR FORECAST LOW AND CONDITIONS E OF AREA.

.LOW 48N30W 1020 MB MOVING S 05 KT. WITHIN 180 NM N QUADRANT
WINDS TO 25 KT. SEAS TO 8 FT.
.24 HOUR FORECAST LOW DISSIPATED. FROM 46N TO 49N E OF 42W WINDS
20 TO 30 KT. SEAS TO 9 FT.
.48 HOUR FORECAST CONDITIONS DESCRIBED BELOW WITH HURRICANE
MARGOT.

.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 42N 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 52W AND 81W WINDS 20 TO
33 KT. SEAS TO 12 FT.

.24 HOUR FORECAST FROM 58N TO 60N BETWEEN 37W AND 44W WINDS TO 25
KT. SEAS LESS THAN 8 FT.
.48 HOUR FORECAST CONDITIONS DESCRIBED WITH LOW 60N49W IN
WARNINGS SECTION ABOVE.

.DENSE FOG. VSBY OCCASIONALLY LESS THAN 1 NM FROM 42N TO 50N
BETWEEN 65W AND 70W...AND N OF 65N E OF 57W.
.24 HOUR FORECAST DENSE FOG FROM 42N TO 50N BETWEEN 59W AND
69W....AND FROM 54N TO 57N BETWEEN 54W AND 61W.
.48 HOUR FORECAST DENSE FOG FROM 46N TO 61N BETWEEN 45W AND
55W...N OF 65N W OF 58W...AND FROM 44N TO 48N BETWEEN 54W AND
60W.

.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 1800 UTC WED SEP 13.
24 HOUR FORECAST VALID 1800 UTC THU SEP 14.
48 HOUR FORECAST VALID 1800 UTC FRI SEP 15.

.WARNINGS.

...ATLC HURRICANE WARNING...
.HURRICANE LEE NEAR 27.4N 67.6W 952 MB AT 2100 UTC SEP 13 MOVING 
NNW OR 340 DEG AT 9 KT. MAXIMUM SUSTAINED WINDS 90 KT GUSTS 110 
KT. TROPICAL STORM FORCE WINDS WITHIN 230 NM E SEMICIRCLE...170 
NM SW QUADRANT AND 180 NM NW QUADRANT. SEAS 12 FT OR GREATER 
WITHIN 360 NM NE QUADRANT...330 NM SE QUADRANT...390 NM SW 
QUADRANT...AND 420 NM NW QUADRANT WITH SEAS TO 42 FT. ELSEWHERE 
S OF 31N WITHIN 420 NM NE AND SW QUADRANTS...390 NM SE QUADRANT 
AND 480 NM NW QUADRANT WINDS 20 TO 33 KT. SEAS 13 TO 21 FT IN SE 
TO S SWELL. REMAINDER OF AREA FROM 18N TO 31N BETWEEN 57W AND 
THE BAHAMAS...INCLUDING IN ATLC EXPOSURES AND PASSAGES...AND 
ALSO N OF 27N BETWEEN 57W AND 80W WINDS 20 KT OR LESS. SEAS 8 TO 
12 FT IN MIXED SWELL. 
.24 HOUR FORECAST HURRICANE LEE NEAR 30.9N 68.2W. MAXIMUM 
SUSTAINED WINDS 85 KT GUSTS 105 KT. TROPICAL STORM FORCE WINDS 
WITHIN 250 NM E SEMICIRCLE...170 NM SW QUADRANT AND 190 NM NW 
QUADRANT. SEAS 12 FT OR GREATER WITHIN 375 NM NE QUADRANT...360 
NM S SEMICIRCLE AND 390 NM NW QUADRANT WITH SEAS TO 45 FT. 
ELSEWHERE WITHIN 420 NM OF CENTER...EXCEPT 480 NM NW QUADRANT 
WINDS 20 TO 33 KT. SEAS 12 TO 19 FT IN MIXED SWELL. REMAINDER OF 
AREA FROM 19N TO 31N BETWEEN 56W AND THE BAHAMAS AND ALSO N OF 
27N BETWEEN 56W AND 80W WINDS 20 KT OR LESS. SEAS 8 TO 12 FT IN 
MIXED SWELL.
.48 HOUR FORECAST HURRICANE LEE WELL N OF AREA NEAR 36.4N 67.2W. 
MAXIMUM SUSTAINED WINDS 75 KT GUSTS 90 KT. TROPICAL STORM FORCE 
WINDS WITHIN 250 NM E SEMICIRCLE...210 NM SW QUADRANT AND 230 NM 
NW QUADRANT. SEAS 12 FT OR GREATER WITHIN 390 NM NE 
QUADRANT...510 NM S SEMICIRCLE AND 450 NM NW QUADRANT WITH SEAS 
TO 43 FT. ELSEWHERE OVER FORECAST WATERS N OF 29N BETWEEN 60W 
AND 72W SW TO W WINDS 20 TO 33 KT. SEAS 12 TO 18 FT IN NW TO N 
SWELL. REMAINDER OF AREA BETWEEN A LINE FROM 31N53W TO 23N63W 
AND THE BAHAMAS AND ALSO N OF 27N BETWEEN SAME LINE AND 80W 
WINDS 20 KT OR LESS. SEAS 8 TO 12 FT IN MIXED SWELL. 
.72 HOUR FORECAST HURRICANE LEE NEAR 42.6N 66.9W. MAXIMUM 
SUSTAINED WINDS 65 KT GUSTS 80 KT.
EXTENDED OUTLOOK...USE FOR GUIDANCE ONLY...ERRORS MAY BE LARGE.
.96 HOUR FORECAST POST-TROPICAL LEE NEAR 47.7N 63.8W. MAXIMUM 
SUSTAINED WINDS 45 KT GUSTS 55 KT.
.120 HOUR FORECAST POST-TROPICAL LEE NEAR 52.3N 52.1W. 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 35N41W 971 MB AT 2100 UTC 
SEP 13 MOVING N OR 360 DEG AT 6 KT. MAXIMUM SUSTAINED WINDS 80 
KT GUSTS 100 KT. OVER FORECAST WATERS N OF 30N BETWEEN 36W AND 
42W S TO SW WINDS 20 TO 25 KT. SEAS 10 TO 14 FT IN N TO NE SWELL.
ELSEWHERE N OF 25N BETWEEN A LINE FROM 28N35W TO 26N41W AND 57W 
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 36N40W.
OVER FORECAST WATERS BETWEEN A LINE FROM 31N36W TO 27N43W TO 
25N46W AND 56W WINDS 20 KT OR LESS. SEAS 8 TO 10 FT IN N TO NE 
SWELL...EXCEPT IN MIXED SWELL BETWEEN 50W AND 57W.
.48 HOUR FORECAST N OF 30N BETWEEN 35W AND 53W WINDS 20 KT OR 
LESS. SEAS 8 TO 9 FT IN N TO NE SWELL.   

.ATLC 06 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.
.18 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.
.24 HOUR FORECAST LOW PRES...POSSIBLE TROPICAL CYCLONE...NEAR 
13N39W 1008 MB. LITTLE CHANGE IN CONDITIONS.
.48 HOUR FORECAST LOW PRES...POSSIBLE TROPICAL CYCLONE...NEAR 
16N43W 1007 MB. FROM 16N TO 22N BETWEEN 35W AND 43W E TO SE 
WINDS 20 TO 25 KT. SEAS 8 TO 10 FT. ELSEWHERE FROM 14N TO 25N 
BETWEEN 35W AND 47W 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.

$$