163 
FZNT01 KWBC 040344
HSFAT1

HIGH SEAS FORECAST FOR METAREA IV
NWS OCEAN PREDICTION CENTER WASHINGTON DC
0430 UTC MON DEC 04 2023

CCODE/2:31:04:01:00/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SUPERSEDED BY NEXT ISSUANCE IN 6 HOURS 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).

SECURITE

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

ALL FORECASTS VALID OVER ICE FREE FORECAST WATERS

SYNOPSIS VALID 0000 UTC DEC 04. 
24 HOUR FORECAST VALID 0000 UTC DEC 05.
48 HOUR FORECAST VALID 0000 UTC DEC 06.

.WARNINGS.

...HURRICANE FORCE WIND WARNING... 
.LOW 55N42W 1002 MB MOVING SW 10 KT. WITHIN 120 NM NW AND N OF A
LINE FROM 58N49W TO 60N40W WINDS 35 TO 45 KT. SEAS 8 TO 18 FT.
.12 HOUR FORECAST COMPLEX LOW WITH MAIN LOW 54N44W 1002 MB. FROM
57N TO 62N BETWEEN 40W AND 43W AND FROM 57N TO 60N BETWEEN 43W
AND 52W WINDS 35 TO 50 KT. SEAS 12 TO 22 FT.  
.24 HOUR FORECAST COMPLEX LOW WITH MAIN LOW 53N45W 999 MB. FROM 
56N TO 62N BETWEEN 35W AND 43W AND FROM 57N TO 60N BETWEEN 43W
AND 50W WINDS 35 TO 50 KT. SEAS 12 TO 26 FT...HIGHEST NEAR
59N46W. ELSEWHERE FROM 56N TO 65N BETWEEN 35W AND 40W AND N OF
65N E OF GREENLAND WINDS 25 TO 35 KT. SEAS 8 TO 16 FT. 
.36 HOUR FORECAST LOW ABSORBED WITH NEW LOW 56N36W 974 MB. WITHIN
360 NM N...600 NM W AND 360 NM NW QUADRANTS AND WITHIN 120 NM NW
AND N OF A LINE FROM 61N39W TO 64N35W WINDS 45 TO 60 KT. SEAS 16
TO 31 FT...HIGHEST W QUADRANT. 
.48 HOUR FORECAST LOW JUST E OF THE AREA 56N38W 967 MB. WITHIN
180 NM NW AND N OF A LINE FROM 56N43W TO 58N40W TO 61N40W AND
WITHIN 120 NM N AND NE OF A LINE FROM 58N40W TO 61N35W WINDS 50
TO 70 KT. SEAS 24 TO 45 FT. ELSEWHERE WITHIN 600 NM N...BETWEEN
90 NM AND 240 NM S AND BETWEEN 90 NM AND 360 NM W QUADRANTS WINDS
35 TO 50 KT. SEAS 12 TO 28 FT...HIGHEST W QUADRANT. ALSO WITHIN
600 NM S AND NW QUADRANTS WINDS 25 TO 35 KT. SEAS 10 TO 20 FT. 

...STORM WARNING... 
.LOW 47N38W 992 MB MOVING NE 20 KT. FROM 40N TO 47N BETWEEN 35W
AND 40W AND WITHIN 480 NM SW AND 240 NM NW QUADRANTS WINDS 35 TO
50 KT. SEAS 10 TO 20 FT. ELSEWHERE FROM 36N TO 51N BETWEEN 35W
AND 48W WINDS 25 TO 35 KT. SEAS 8 TO 15 FT...HIGHEST SW
QUADRANT.
.24 HOUR FORECAST LOW E OF AREA NEAR 54N30W 982 MB. FROM 49N TO
57N E OF 40W WINDS 25 TO 35 KT. SEAS 8 TO 14 FT.  FROM 46N TO 56N
E OF 37W WINDS 25 TO 35 KT. SEAS 9 TO 16 FT. 
.48 HOUR FORECAST LOW ABSORBED AND CONDITIONS DESCRIBED ABOVE
WITH LOW JUST E OF THE AREA 56N38W 967 MB.

...STORM WARNING... 
.COMPLEX LOW WITH MAIN LOW 40N69W 1002 MB MOVING NE 45 KT AND
SECOND LOW 40N62W 1006 MB MOVING NE 30 KT. WITHIN 300 NM S OF A
FRONT FROM 40N58W TO THE SECOND LOW TO THE FIRST LOW WINDS 25 TO
35 KT. SEAS 8 TO 12 FT. ELSEWHERE WITHIN 600 NM SE QUADRANT OF
SECOND LOW AND FROM 32N TO 45N W OF 60W WINDS 20 TO 30 KT. SEAS
TO 10 FT. 
.24 HOUR FORECAST COMBINED LOW 44N44W 988 MB. WITHIN 420 NM SE
AND 540 NM SW QUADRANTS WINDS 35 TO 50 KT. SEAS 9 TO 18 FT.
ELSEWHERE WITHIN 300 NM NE...600 NM SE...1080 NM SW AND 660 NM NW
QUADRANTS WINDS 25 TO 35 KT. SEAS 8 TO 15 FT. 
.48 HOUR FORECAST LOW WELL NE OF AREA WITHIN NEW COMPLEX LOW AND
MAIN LOW TO FORM NEAR 40N42W 998 MB. FROM 31N TO 44N BETWEEN 35W
AND 50W WINDS 25 TO 40 KT. SEAS 9 TO 17 FT. ELSEWHERE WITHIN AN
AREA BOUNDED BY A LINE FROM 31N50W TO 42N50W TO 40N65W TO 31N56W
TO 31N50W WINDS 20 TO 30 KT. SEAS 8 TO 14 FT IN MIXED SWELL.

...GALE WARNING... 
.LOW 62N60W 1012 MB MOVING NW 15 KT. WITHIN 180 NM S...120 NM W
AND N QUADRANTS WINDS 25 TO 35 KT. SEAS 8 TO 12 FT. 
.24 HOUR FORECAST LOW WELL INLAND WITH NEW COMPLEX LOW WITH MAIN
LOW TO FORM NEAR 57N55W 1006 MB. FROM 55N TO 61N BETWEEN 50W AND
64W WINDS 25 TO 40 KT. SEAS 8 TO 22 FT...HIGHEST E OF 53W. 
.48 HOUR FORECAST LOW DISSIPATED. FROM 58N TO 67N W OF 54W AREA
OF N WINDS 20 TO 30 KT. SEAS 8 TO 18 FT IN MIXED SWELL...HIGHEST
NEAR 58N.

.SYNOPSIS AND FORECAST.

.WITHIN AN AREA BOUNDED BY A LINE FROM 31N35W TO 31N41W TO 34N35W
TO 31N35W AREA OF NE WINDS TO 25 KT. SEAS TO 10 FT.
.24 HOUR FORECAST CONDITIONS DIMINISHED. 

.DENSE FOG. VSBY OCCASIONALLY LESS THAN 1 NM FROM 38N TO 40N W OF
70W...FROM 43N TO 45N BETWEEN 64W AND 67W...SW AND W OF A LINE
FROM 54N53W TO 59NN59W...FROM 61N TO 64N W OF 60W AND WITHIN 120
NM NE OF A LINE FROM 61N55W TO 55N50W TO 54N45W. 
.24 HOUR FORECAST DENSE FOG FROM 45N TO 48N BETWEEN 42W AND
63W...INCLUDING THE E GULF OF SAINT LAWRENCE...WITHIN 180 NM S
AND SW OF A LINE FROM 57N51W TO 63N62W...WITHIN 120 NM NW AND N
OF A LINE FROM 55N50W TO 58N39W. 
.48 HOUR FORECAST DENSE FOG FROM 51N TO 55N W OF 51W...FROM 53N
TO 60N BETWEEN 40W AND 57W...WITHIN 90 NM W AND NW OF A LINE FROM
60N41W TO 64N37W TO THE E COAST OF GREENLAND. 

.LIGHT TO MODERATE FREEZING SPRAY W AND NW OF A LINE FROM 48N64W
TO 50N58W IN THE N GULF OF SAINT LAWRENCE...W OF A LINE FROM
52N53W TO 64N63W AND E OF A LINE FROM 6N54W TO 67N55W TO
GREENLAND.  
.24 HOUR FORECAST LIGHT TO MODERATE FREEZING SPRAY NW OF A LINE
FROM 48N64W TO 50N59W IN THE GULF OF SAINT LAWRENCE...W OF A LINE
FROM 52N51W TO 64N63W AND E OF A LINE FROM FROM 64N53W TO 67N55W
TO GREENLAND.  
.48 HOUR FORECAST LIGHT TO MODERATE FREEZING SPRAY NW OF A LINE
FROM 47N64W TO 49N58W TO 51N57W IN THE GULF OF SAINT LAWRENCE...W
OF A LINE FROM 61N59W TO 65N59W AND E OF A LINE FROM 64N53W TO
67N57W TO GREENLAND.

.FORECASTER FUTTERMAN. 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 MON DEC 4.
24 HOUR FORECAST VALID 0000 UTC TUE DEC  5.
48 HOUR FORECAST VALID 0000 UTC WED DEC  6.

.WARNINGS.

.NONE.

.SYNOPSIS AND FORECAST.

.ATLC LOW PRES NEAR 28N36.5W 1013 MB. COLD FRONT FROM 31N29W TO 
17N55W. WITHIN 31N36W TO 31N41W TO 29N42W TO 27N42W TO 27N39W TO 
28N37W TO 31N36W N TO NE WINDS 20 TO 25 KT. SEAS 10 TO 14 FT. 
ELSEWHERE WITHIN 26N35W TO 31N47W TO 25N53W TO 26N63W TO 19N63W 
TO 17N48W TO 26N35W...INCLUDING IN ATLANTIC EXPOSURES AND
PASSAGES...WINDS 20 KT OR LESS. SEAS 8 TO 10 FT IN NE SWELL. 
.24 HOUR FORECAST STATIONARY FRONT FROM 21N35W TO 16N59W. WITHIN 
30N35W TO 20N53W TO 20N61W TO 16N61W TO 11N51W TO 18N41W TO 
30N35W...INCLUDING IN ATLANTIC EXPOSURES AND PASSAGES...WINDS 
20 KT OR LESS. SEAS 8 TO 9 FT IN NE SWELL.
.48 HOUR FORECAST FRONT DISSIPATED. WITHIN 13N42W TO 16N46W TO 
18N56W TO 17N61W TO 11N55W TO 08N42W TO 13N42W...INCLUDING IN 
ATLANTIC EXPOSURES AND PASSAGES...E WINDS 20 TO 25 KT. SEAS 8 
TO 9 FT.

.ATLC WITHIN 11N35W TO 11N36W TO 09N37W TO 07N36W TO 07N35W TO
11N35W E WINDS 20 TO 25 KT. SEAS 8 TO 9 FT.
.24 HOUR FORECAST CONDITIONS IMPROVE. WINDS 20 KT OR LESS. SEAS
LESS THAN 8 FT.

.ATLC 42 HOUR FORECAST WITHIN 31N46W TO 31N59W TO 31N58W TO
30N52W TO 30N49W TO 31N46W SW TO W WINDS 20 TO 25 KT. SEAS 8 TO
9 FT.
.48 HOUR FORECAST WITHIN 31N42.5W TO 31N56W TO 30.5N54.5W TO
30N50.5W TO 30N45.5W TO 31N42.5W SW TO W WINDS 20 TO 25 KT. SEAS
8 TO 9 FT.

.CARIBBEAN WITHIN 16N75W TO 17N77W TO 15N82W TO 11N81W TO 10N76W
TO 12N70W TO 16N75W...INCLUDING THE GULF OF VENEZUELA...NE TO E
WINDS 20 TO 25 KT. SEAS 8 TO 11 FT.
.24 HOUR FORECAST WITHIN 13N70W TO 15N75W TO 16N79W TO 14N81W TO
10N79W TO 11N70W TO 13N70W...INCLUDING THE GULF OF VENEZUELA...
NE TO E WINDS 20 TO 25 KT. SEAS 8 TO 9 FT.
.48 HOUR FORECAST WITHIN 14N74W TO 13N77W TO 11N79W TO 10N77W TO
11N74W TO 12N69W TO 14N74W...INCLUDING THE GULF OF VENEZUELA...
NE TO E WINDS 20 TO 25 KT. SEAS 8 FT.

.GULF OF MEXICO COLD FRONT SE OF AREA. WITHIN 21N95W TO 21N96W 
TO 20N97W TO 19N96W TO 19N95W TO 21N95W...INCLUDING WITHIN 60 NM 
OF COAST OF VERACRUZ...NW TO N WINDS 20 TO 25 KT. SEAS 8 FT.
.18 HOUR FORECAST CONDITIONS IMPROVE. WINDS 20 KT OR LESS. SEAS
LESS THAN 8 FT.

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


.FORECASTER ERA. NATIONAL HURRICANE CENTER.

$$