North Atlantic High Seas Forecast

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FZNT01 KWBC 210354
HSFAT1

HIGH SEAS FORECAST FOR METAREA IV
NWS OCEAN PREDICTION CENTER WASHINGTON DC
0430 UTC THU NOV 21 2024

CCODE/1:31:04:01:00/AOE/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SUPERSEDED BY NEXT ISSUANCE IN 6 HOURS 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).

FOR ANY TROPICAL CYCLONE INFORMATION BEYOND 48 HOURS REFERENCE 
THE ASSOCIATED NWS TROPICAL CYCLONE FORECAST/ADVISORY (TCM).

SECURITE

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

ALL FORECASTS VALID OVER ICE FREE FORECAST WATERS

SYNOPSIS VALID 0000 UTC NOV 21. 
24 HOUR FORECAST VALID 0000 UTC NOV 22.
48 HOUR FORECAST VALID 0000 UTC NOV 23.

.WARNINGS.

...GALE WARNING...
.LOW 43N56W 988 MB MOVING SE 15 KT. WITHIN 600 NM S
SEMICIRCLE...540 NM NW QUADRANT...AND FROM 46N TO 55W E OF 57W
WINDS 25 TO 40 KT. SEAS 14 TO 28 FT...EXCEPT 8 TO 16 FT IN S
SEMICIRCLE AND NW QUADRANT. 
.24 HOUR FORECAST LOW 42N47W 992 MB. WITHIN 540 NM S
SEMICIRCLE...660 NW QUADRANT...AND FROM 48N TO 54N E OF 56W WINDS
30 TO 45 KT. SEAS 13 TO 26 FT...EXCEPT 9 TO 18 FT IN S SEMICIRCLE
AND NW QUADRANT.
.48 HOUR FORECAST LOW 45N35W 990 MB. WITHIN 600 NM SW AND 360 NW
QUADRANTS WINDS 25 TO 40 KT. SEAS 10 TO 20 FT. 

...GALE WARNING...
.12 HOUR FORECAST LOW E OF AREA NEAR 63N30W 1006 MB. WITHIN 300
NM W QUADRANT AND WITHIN 180 NM S OF A LINE FROM 60N35W TO 59N42W
TO 62N49W WINDS 25 TO 35 KT. SEAS 8 TO 13 FT. 
.24 HOUR FORECAST LOW E OF AREA NEAR 61N27W 1008 MB. WITHIN 420
NM NW QUADRANT AND FROM 56N TO 61N BETWEEN 43W AND 52W WINDS 25
TO 40 KT. SEAS 8 TO 16 FT.
.48 HOUR FORECAST LOW E OF AREA NEAR 60N24W 992 MB. FROM 50N TO
64N E OF 52W WINDS 25 TO 40 KT. SEAS 12 TO 24 FT.

...GALE WARNING...
.18 HOUR FORECAST LOW 39N68W 988 MB. WITHIN 300 NM SW OF A LINE
FROM 41N70W TO 35N64W WINDS 25 TO 40 KT. SEAS 8 TO 12 FT. 
.24 HOUR FORECAST LOW 39N66W 992 MB. WITHIN 120 NM N AND 360 NM
SW OF A LINE FROM 41N72W TO 38N62W WINDS 25 TO 40 KT. SEAS 8 TO
13 FT.
.48 HOUR FORECAST LOW AND ASSOCIATED CONDITIONS DIMINISHED.

...GALE WARNING...
.42 HOUR FORECAST LOW 39N68W 996 MB. WITHIN 660 NM S SEMICIRCLE
WINDS 25 TO 40 KT. SEAS 8 TO 12 FT.
.48 HOUR FORECAST LOW 40N68W 991 MB. WITHIN 600 NM S SEMICIRCLE
WINDS 25 TO 40 KT. SEAS 8 TO 13 FT.

.SYNOPSIS AND FORECAST.

.DENSE FOG. VSBY OCCASIONALLY LESS THAN 1 NM FROM 44N TO 50N
BETWEEN 42W AND 54W.
.24 HOUR FORECAST DENSE FOG FROM 44N TO 49N BETWEEN 41W AND 54W.
.48 HOUR FORECAST CONDITIONS IMPROVED.

.24 HOUR FORECAST LIGHT TO MODERATE FREEZING SPRAY W OF A LINE
FROM 58N58W TO 63N63W TO 66N61W AND N OF 64N WITHIN 60 NM OF THE
GREENLAND COAST.
.48 HOUR FORECAST LIGHT TO MODERATE FREEZING SPRAY WITHIN 60 NM
OF THE GREENLAND COAST BETWEEN 35W AND 55W AND W OF A LINE FROM
57N59W TO 63N60W TO 66N56W TO 67N57W.

.FORECASTER HYDE. 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 THU NOV 21.
24 HOUR FORECAST VALID 0000 UTC FRI NOV 22.
48 HOUR FORECAST VALID 0000 UTC SAT NOV 23.

.WARNINGS.

...GULF OF MEXICO GALE WARNING...
.WITHIN 20N96W TO 20N96.5W TO 19.5N96.5W TO 19N96W TO 19N95.5W 
TO 19.5N95.5W TO 20N96W...INCLUDING WITHIN 60 NM OF COAST OF 
VERACRUZ...NW WINDS 30 TO 35 KT. SEAS TO 10 FT. ELSEWHERE WITHIN
20N91W TO 20N92W TO 20N97W TO 19N96W TO 19N93W TO 20N91W... 
INCLUDING WITHIN 60 NM OF COAST OF CAMPECHE...N WINDS 25 TO 35 
KT. SEAS 8 FT. WITHIN 30N86W TO 27N97W TO 22N97W TO 21N94W TO 
25N91W TO 26N82W TO 30N86W N WINDS 20 TO 30 KT. SEAS TO 10 FT IN
N SWELL.
.12 HOUR FORECAST WITHIN 20N95W TO 20N96W TO 19N96W TO 19N95W TO
20N95W...INCLUDING WITHIN 60 NM OF COAST OF VERACRUZ...NW TO N 
WINDS 20 TO 30 KT. SEAS 8 TO 12 FT IN N SWELL. WITHIN 29N84W TO 
30N86W TO 26N90W TO 25N86W TO 27N85W TO 27N83W TO 29N84W N WINDS 
20 TO 25 KT. SEAS TO 10 FT IN NW TO N SWELL. ELSEWHERE WITHIN 
25N83W TO 28N84W TO 29N88W TO 23N96W TO 19N93W TO 23N90W TO 
25N83W WINDS 20 KT OR LESS. SEAS 8 TO 10 FT IN N SWELL.
.24 HOUR FORECAST WITHIN 27N82W TO 26N84W TO 25N82W TO 24N82W TO
25N82W TO 27N82W N WINDS 20 TO 25 KT. SEAS TO 9 FT IN NW SWELL. 
ELSEWHERE WITHIN 25N82W TO 28N85W TO 26N91W TO 19N96W TO 22N89W 
TO 22N85W TO 25N82W...INCLUDING STRAITS OF FLORIDA AND WITHIN 60 
NM OF COAST OF VERACRUZ... WINDS 20 KT OR LESS. SEAS 8 TO 10 FT 
IN N SWELL.
.48 HOUR FORECAST CONDITIONS IMPROVE. WINDS 20 KT OR LESS. SEAS 
LESS THAN 8 FT.

.SYNOPSIS AND FORECAST.

.ATLC WITHIN 31N39W TO 31N63W TO 26N58W TO 26N53W TO 27N43W TO
31N39W WINDS 20 KT OR LESS. SEAS 8 TO 12 FT IN NW TO N SWELL.
.24 HOUR FORECAST WITHIN 31N47W TO 31N58W TO 29N54W TO 29N52W TO
30N47W TO 31N47W WINDS 20 KT OR LESS. SEAS 8 TO 10 FT IN NW 
SWELL.
.48 HOUR FORECAST WITHIN 31N38W TO 31N49W TO 30N47W TO 29N45W TO
31N38W WINDS 20 KT OR LESS. SEAS 8 TO 9 FT IN NW SWELL.

.ATLC WITHIN 30N76W TO 31N76W TO 31N77W TO 30N77W TO 29N77W TO
29N76W TO 30N76W SW TO W WINDS 20 TO 25 KT. SEAS LESS THAN 8 FT.
.24 HOUR FORECAST WITHIN 31N76W TO 31N81W TO 30N80W TO 30N79W TO
31N77W TO 31N76W W TO NW WINDS 20 TO 25 KT. SEAS LESS THAN 8 FT.
.48 HOUR FORECAST WITHIN 30N62W TO 31N61W TO 31N64W TO 27N67W TO
30N62W SW WINDS 20 TO 30 KT. SEAS 8 TO 11 FT IN SW TO W SWELL. 
ELSEWHERE WITHIN 31N60W TO 31N66W TO 30N67W TO 29N67W TO 28N66W 
TO 29N62W TO 31N60W WINDS 20 KT OR LESS. SEAS 8 TO 10 FT IN SW TO
W SWELL. WITHIN 31N67W TO 31N75W TO 29N75W TO 29N72W TO 30N70W 
TO 30N68W TO 31N67W W WINDS 20 TO 30 KT. SEAS 8 TO 13 FT IN W TO 
NW SWELL. REMAINDER OF AREA WITHIN 31N66W TO 29N74W TO 31N75W TO 
30N78W TO 28N78W TO 27N74W TO 31N66W WINDS 20 KT OR LESS. SEAS 8 
TO 11 FT IN NW SWELL.

.CARIBBEAN 18 HOUR FORECAST WITHIN 17N87.5W TO 18N87W TO
17.5N87.5W TO 17N88W TO 16N87.5W TO 16N87W TO 17N87.5W... 
INCLUDING THE GULF OF HONDURAS...NW TO N WINDS 20 TO 25 KT. SEAS
LESS THAN 8 FT. YUCATAN CHANNEL N OF 21N WINDS 20 KT OR LESS. 
SEAS 8 FT IN N SWELL.
.24 HOUR FORECAST WITHIN 18N85W TO 19N86W TO 17N87W TO 17N84W TO
18N85W N WINDS 20 TO 25 KT. SEAS TO 8 FT. WITHIN 22N85W TO 
22N87W TO 21N86W TO 20N86W TO 20N85W TO 22N85W...INCLUDING IN 
YUCATAN CHANNEL.. WINDS 20 KT OR LESS. SEAS 8 TO 9 FT IN N SWELL.
.48 HOUR FORECAST WITHIN 17N81W TO 16N83W TO 12N84W TO 13N82W TO
14N82W TO 17N81W...INCLUDING WITHIN 60 NM OF COAST OF 
NICARAGUA... N WINDS 20 TO 25 KT. SEAS TO 9 FT IN NW TO N SWELL.

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


.FORECASTER STRIPLING. NATIONAL HURRICANE CENTER.

$$