FZNT01 KWBC 220351
HSFAT1

HIGH SEAS FORECAST FOR METAREA IV 
NWS OCEAN PREDICTION CENTER WASHINGTON DC 
0430 UTC SUN DEC 22 2024 

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SUPERSEDED BY NEXT ISSUANCE IN 6 HOURS 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 22. 
24 HOUR FORECAST VALID 0000 UTC DEC 23. 
48 HOUR FORECAST VALID 0000 UTC DEC 24. 

.WARNINGS. 

...HURRICANE FORCE WIND WARNING... 
.COMPLEX LOW WITH MEAN CENTER 49N57W 975 MB MOVING NE 25 KT.
WITHIN 360 NM SE QUADRANT AND 240 NM W SEMICIRCLE WINDS 35 TO 50 
KT. SEAS 12 TO 24 FT. ELSEWHERE WITHIN 720 NM E AND NE...960 NM 
S AND SE...540 NM SW...AND 300 NM NW QUADRANTS WINDS 25 TO 40 
KT. SEAS 9 TO 18 FT. 
.12 HOUR FORECAST LOW 53N53W 964 MB. WITHIN 240 NM SE AND 120 NM 
SW QUADRANTS WINDS 50 TO 65 KT. SEAS 18 TO 30 FT. 
.24 HOUR FORECAST COMPLEX LOW WITH FIRST CENTER 58N45W 972 MB 
AND A SECOND NEW CENTER 61N40W 970 MB. WITHIN 150 NM W AND NW 
SEMICIRCLES OF SECOND CENTER...AND BETWEEN 120 NM AND 300 NM S 
SEMICIRCLE OF FIRST CENTER WINDS 50 TO 65 KT. SEAS 22 TO 42 FT. 
ALSO N OF 53N E OF 51W WINDS 35 TO 50 KT. SEAS 18 TO 36 FT. 
ELSEWHERE N OF 49N E OF 60W WINDS 25 TO 40 KT. SEAS 14 TO 28 FT.
.48 HOUR FORECAST LOW E OF AREA WITH NEW LOW TO FORM 64N36W 976 
MB. BETWEEN 240 NM AND 420 NM SW QUADRANT WINDS 35 TO 50 KT. 
SEAS 14 TO 28 FT. ELSEWHERE FROM 56N TO 65N E OF 58W WINDS 25 TO 
40 KT. SEAS 11 TO 22 FT.

 ...STORM WARNING... 
.FROM 63N TO 65N E OF GREENLAND WINDS 35 TO 50 KT. SEAS 9 TO 18 
FT. ELSEWHERE N OF 62N E OF GREENLAND...AND E OF A LINE FROM 
57N36W TO 60N44W WINDS 25 TO 35 KT. SEAS 8 TO 15 FT.  
.24 HOUR FORECAST CONDITIONS DESCRIBED BY COMPLEX LOW IN WARNING 
ABOVE.

...GALE WARNING... 
.FROM 32N TO 41N BETWEEN 65W AND 75W AREA OF NW WINDS 25 TO 35 
KT. SEAS 8 TO 16 FT.
.24 HOUR FORECAST NEW LOW 42N52W 1004 MB. FROM 33N TO 45N 
BETWEEN 44W AND 55W...AND FROM 38N TO 47N E OF 40W WINDS 25 TO 
35 KT. SEAS 8 TO 16 FT. 
.48 HOUR FORECAST LOW E OF AREA 53N33W 996 MB. WITHIN 600 NM W 
AND SW QUADRANTS WINDS 25 TO 35 KT. SEAS 10 TO 20 FT.

...GALE WARNING...
.48 HOUR FORECAST NEW LOW 39N41W 1016 MB. WITHIN 420 NM NE...240 
NM SE...AND BETWEEN 240 NM AND 420 NM W AND NW QUADRANTS WINDS 
25 TO 35 KT. SEAS 8 TO 16 FT.

...HEAVY FREEZING SPRAY WARNING... 
.MODERATE TO HEAVY FREEZING SPRAY N OF A LINE FROM 47N65W TO 
51N59W OVER THE GULF OF SAINT LAWRENCE...W AND NW OF A LINE FROM 
55N57W TO 60N62W TO 65N53W...WITHIN 60 NM OF THE SW GREENLAND 
COAST FROM 60N TO 64N...AND N OF 64N E OF GREENLAND. ELSEWHERE 
LIGHT TO MODERATE FREEZING SPRAY N AND NW OF LINE FROM 43N68W TO 
58N48W TO 63N35W...INCLUDING THE GULF OF SAINT LAWRENCE EXCEPT 
WHERE DESCRIBED PREVIOUSLY.  
.24 HOUR FORECAST MODERATE TO HEAVY FREEZING SPRAY N AND NW OF A 
LINE FROM 49N64W TO 53N55W TO 59N56W TO 62N49W...AND WITHIN 60 
NM OF THE SE GREENLAND COAST N OF 60N. ELSEWHERE LIGHT TO 
MODERATE FREEZING SPRAY N AND NW OF A LINE FROM 42N67W TO 50N54W 
TO 57N54W TO 60N48W TO 60N41W TO 65N35W.
.48 HOUR FORECAST MODERATE TO HEAVY FREEZING SPRAY N AND NW OF A 
LINE FROM 49N61W TO 51N54W TO 59N58W TO 59N42W TO 63N38W. 
ELSEWHERE LIGHT TO MODERATE FREEZING SPRAY N AND NW OF A LINE 
FROM 43N64W TO 53N51W TO 60N36W. 

.SYNOPSIS AND FORECAST. 

.LOW 34N44W 1015 MB MOVING NE 20 KT. FROM 31N TO 40N E OF 44W 
WINDS 20 TO 30 KT. SEAS 8 TO 13 FT.
.24 HOUR FORECAST LOW DISSIPATED WITH CONDITIONS DESCRIBED WITH 
LOW 42N52W IN WARNINGS SECTION ABOVE.

.DENSE FOG. VSBY OCCASIONALLY LESS THAN 1 NM FROM 46N TO 57N 
BETWEEN 38W AND 65W...AND N OF 65N W OF GREENLAND. 
.24 HOUR FORECAST DENSE FOG FROM 42N TO 47N BETWEEN 50W AND 
54W...AND N OF A LINE FROM 62N62W TO 55N50W TO 58N39W TO 63N35W.
.48 HOUR FORECAST DENSE FOG FROM 48N TO 54N BETWEEN 37W AND 
45W...AND FROM 56N TO 67N BETWEEN 45W AND 55W. 

.FORECASTER MILLS. OCEAN PREDICTION CENTER.

NATIONAL HURRICANE CENTER MIAMI FL

ATLANTIC FROM 07N TO 31N W OF 35W INCLUDING CARIBBEAN SEA AND
GULF OF MEXICO

SYNOPSIS VALID 0000 UTC SUN DEC 22.
24 HOUR FORECAST VALID 0000 UTC MON DEC 23.
48 HOUR FORECAST VALID 0000 UTC TUE DEC 24.

.WARNINGS.

.NONE.

.SYNOPSIS AND FORECAST.

.ATLC WITHIN 31N35W TO 31N36W TO 30.5N36W TO 30N35.5W TO
30.5N35W TO 31N35W SE WINDS 20 TO 25 KT. SEAS 9 TO 10 FT.
ELSEWHERE WITHIN 31N35W TO 31N40W TO 29N38W TO 26N37W TO 24N35W 
TO 31N35W WINDS 20 KT OR LESS. SEAS 8 TO 10 FT IN E SWELL.
.24 HOUR FORECAST WITHIN 31N35W TO 31N38W TO 23N37W TO 18N37W TO
16N35W TO 31N35W WINDS 20 KT OR LESS. SEAS 8 TO 10 FT IN E 
SWELL.
.48 HOUR FORECAST WITHIN 30N35W TO 31N42W TO 19N41W TO 14N35W TO
30N35W WINDS 20 KT OR LESS. SEAS 8 TO 10 FT IN E SWELL.

.ATLC COLD FRONT FROM 31N64W TO 21N75W. WITHIN 31N65W TO 31N75W 
TO 28N74W TO 28N72W TO 30N67W TO 31N65W WINDS 20 KT OR LESS. SEAS
8 TO 9 FT IN NW TO N SWELL.
.24 HOUR FORECAST COLD FRONT FROM 31N56W TO 22N74W. WITHIN 
31N59W TO 30N81W TO 29N78W TO 28N69W TO 26N66W TO 28N61W TO 
31N59W WINDS 20 KT OR LESS. SEAS 8 TO 9 FT IN N SWELL.
.48 HOUR FORECAST COLD FRONT FROM 31N50W TO 20N70W. WITHIN 
31N48W TO 31N62W TO 30N59W TO 29N59W TO 29N56W TO 30N54W TO 
31N48W WINDS 20 KT OR LESS. SEAS 8 FT IN NW TO N SWELL.

.ATLC WITHIN 31N56W TO 31N61W TO 29N60W TO 29N59W TO 29N57W TO
30N57W TO 31N56W WINDS 20 KT OR LESS. SEAS 8 TO 10 FT IN E
SWELL.
.12 HOUR FORECAST CONDITIONS IMPROVE. WINDS 20 KT OR LESS. SEAS 
LESS THAN 8 FT.

.ATLC WITHIN 08N41W TO 09N41W TO 08N43W TO 07N43W TO 07N41W TO
08N41W WINDS 20 KT OR LESS. SEAS 8 FT IN NE TO E SWELL.
.24 HOUR FORECAST WITHIN 14N45W TO 16N50W TO 10N54W TO 07N50W TO
07N41W TO 14N45W WINDS 20 KT OR LESS. SEAS 8 FT IN NE TO E 
SWELL.
.48 HOUR FORECAST WITHIN 10N48W TO 12N50W TO 12N59W TO 07N55W TO
06N52W TO 07N42W TO 10N48W WINDS 20 KT OR LESS. SEAS 8 FT IN NE 
TO E SWELL.

.ATLC WITHIN 20N49W TO 20N51W TO 20N55W TO 19N54W TO 19N51W TO
19N50W TO 20N49W WINDS 20 KT OR LESS. SEAS 8 FT IN NE TO E 
SWELL.
.15 HOUR FORECAST CONDITIONS IMPROVE. WINDS 20 KT OR LESS. SEAS 
LESS THAN 8 FT.

.ATLC 36 HOUR FORECAST WITHIN 29N72W TO 29N76W TO 25N71W TO
24N67W TO 24N64W TO 26N63W TO 29N72W NE WINDS 20 TO 25 KT. SEAS
8 TO 10 FT. ELSEWHERE WITHIN 30N64W TO 31N71W TO 30N79W TO 
24N69W TO 24N64W TO 27N58W TO 30N64W WINDS 20 KT OR LESS. SEAS 8
TO 10 FT IN N TO NE SWELL.
.48 HOUR FORECAST WITHIN 26N57W TO 26N70W TO 29N73W TO 31N80W TO
27N74W TO 21N74W TO 26N57W...INCLUDING ATLANTIC EXPOSURES...NE 
TO E WINDS 20 TO 30 KT. SEAS 9 TO 12 FT. ELSEWHERE WITHIN 29N56W 
TO 28N67W TO 31N77W TO 29N80W TO 22N66W TO 27N55W TO 29N56W WINDS
20 KT OR LESS. SEAS 8 TO 10 FT IN N TO NE SWELL.

.CARIBBEAN 27 HOUR FORECAST WITHIN 20N74W TO 19.5N74.5W TO
19N75W TO 19N74.5W TO 19.5N74W TO 20N74W NE WINDS 20 TO 25 KT.
SEAS LESS THAN 8 FT.
.48 HOUR FORECAST WITHIN 20N73.5W TO 20N74W TO 19.5N74.5W TO 
19.5N74W TO 20N73.5W NE TO E WINDS 20 TO 25 KT. SEAS LESS THAN 8 
FT.

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

$$
.FORECASTER ADAMS. NATIONAL HURRICANE CENTER.