High seas forecast issued; storm warnings and conditions detailed.

FZNT01 KWBC 191549
HSFAT1 1630

HIGH SEAS FORECAST FOR METAREA IV
NWS OCEAN PREDICTION CENTER WASHINGTON DC
1630 UTC THU DEC 19 2024

SUPERSEDED BY NEXT ISSUANCE IN 6 HOURS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
[email protected](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 1200 UTC DEC 19.
24 HOUR FORECAST VALID 1200 UTC DEC 20.
48 HOUR FORECAST VALID 1200 UTC DEC 21.

.WARNINGS.

…STORM WARNING…
.LOW 63N37W 988 MB MOVING NE 10 KT. N OF 63N WITHIN 60 NM SE OF
GREENLAND WINDS 40 TO 50 KT. SEAS 8 TO 15 FT. ELSEWHERE N OF 40N
E OF 50W WINDS 25 TO 40 KT. SEAS 8 TO 16 FT.
.24 HOUR FORECAST LOW AND CONDITIONS E OF AREA.

…STORM WARNING…
.RAPIDLY INTENSIFYING COMPLEX LOW WITH FIRST CENTER 44N65W 1009
MB MOVING NE 55 KT AND SECOND CENTER 54N55W 1009 MB MOVING NE 25
KT. WITHIN 660 NM S SEMICIRCLE OF FIRST CENTER WINDS 25 TO 35
KT. SEAS 8 TO 12 FT. ALSO WITHIN 120 NM S QUADRANT OF SECOND
CENTER WINDS TO 25 KT. SEAS TO 8 FT.
.18 HOUR FORECAST COMPLEX LOW WITH FIRST CENTER 54N44W 991 MB
AND SECOND CENTER 57N44W 990 MB. FROM 48N TO 53N BETWEEN 38W AND
51W WINDS 40 TO 50 KT. SEAS 12 TO 20 FT.
.24 HOUR FORECAST COMPLEX LOW WITH FIRST CENTER 57N35W 982 MB
AND SECOND CENTER 59N39W 983 MB. WITHIN 300 NM S QUADRANT OF
FIRST CENTER AND 240 NM SW QUADRANT OF SECOND CENTER WINDS 40 TO
50 KT. SEAS 12 TO 22 FT. ELSEWHERE FROM 43N TO 60N BETWEEN 35W
AND 50W WINDS 25 TO 40 KT. SEAS 10 TO 20 FT. ALSO WITHIN 240 NM
S AND SE OF FRONT FROM 44N50W TO 35N72W WINDS 20 TO 30 KT. SEAS
8 TO 12 FT.
.48 HOUR FORECAST LOW AND CONDITIONS E OF AREA.

…STORM WARNING…
.LOW 59N60W 1004 MB MOVING NE 10 KT AND RAPIDLY INTENSIFYING.
WINDS LESS THAN 25 KT. SEAS LESS THAN 8 FT.
.12 HOUR FORECAST LOW 60N58W 991 MB. WITHIN 180 NM SW SEMICIRCLE
WINDS 25 TO 35 KT. SEAS TO 10 FT.
.18 HOUR FORECAST LOW 61N56W 986 MB. WITHIN 120 NM SW SEMICIRCLE
WINDS 40 TO 50 KT. SEAS 9 TO 16 FT.
.24 HOUR FORECAST LOW 61N55W 980 MB. WITHIN 180 NM SW AND W
QUADRANTS WINDS 40 TO 50 KT. SEAS 13 TO 19 FT. ELSEWHERE NW OF A
LINE FROM 48N50W TO 61N50W…AND WITHIN 180 NM N QUADRANT WINDS
25 TO 40 KT. SEAS 8 TO 14 FT.
.48 HOUR FORECAST LOW JUST E OF AREA 60N34W 989 MB. WITHIN 240
NM SW QUADRANT WINDS 40 TO 50 KT. SEAS 18 TO 30 FT. ELSEWHERE N
OF A LINE FROM 52N35W TO 57N51W WINDS 25 TO 40 KT. SEAS 10 TO 25
FT…HIGHEST NEAR 57N35W.

…GALE WARNING…
.LOW 31N39W 1020 MB MOVING W 10 KT. FROM 31N TO 36N E OF 46W
WINDS 25 TO 40 KT. SEAS 8 TO 14 FT.
.24 HOUR FORECAST LOW 32N43W 1008 MB. E OF A LINE FROM 31N49W TO
34N48W TO 40N40W WINDS 25 TO 35 KT. SEAS 8 TO 15 FT.
.48 HOUR FORECAST LOW 32N44W 1013 MB. E OF A LINE FROM 31N45W TO
33N45W TO 43N36W WINDS 20 TO 30 KT. SEAS TO 10 FT.

…GALE WARNING…
.24 HOUR FORECAST NEW LOW 35N74W 1010 MB. WITHIN 420 NM N AND NE
QUADRANTS WINDS TO 25 KT. SEAS TO 8 FT.
.36 HOUR FORECAST LOW 38N69W 999 MB. FROM 31N TO 45N W OF 55W
WINDS 25 TO 35 KT. SEAS TO 11 FT.
.48 HOUR FORECAST LOW 43N64W 989 MB. WITHIN 420 NM SE AND S
QUADRANTS WINDS 35 TO 45 KT. SEAS 12 TO 20 FT. ELSEWHERE BETWEEN
77W AND A LINE FROM 31N57W TO 50N44W TO 51N50W WINDS 25 TO 40
KT. SEAS 8 TO 15 FT.

…GALE WARNING…
.48 HOUR FORECAST N OF 61N W OF 53W AREA OF W TO SW WINDS 25 TO
35 KT. SEAS TO 10 FT.

…HEAVY FREEZING SPRAY WARNING…
.MODERATE TO HEAVY FREEZING SPRAY NW AND N OF A LINE FROM 60N64W
TO 65N53W. ELSEWHERE LIGHT TO MODERATE FREEZING SPRAY IN THE
GULF OF SAINT LAWRENCE W OF 65W…NW AND N OF A LINE FROM 54N56W
TO 61N47W…AND N OF 64N WITHIN 90 NM E OF GREENLAND.
.24 HOUR FORECAST MODERATE TO HEAVY FREEZING SPRAY N OF 53N W OF
53W…AND N OF 64N W OF GREENLAND. ELSEWHERE LIGHT TO MODERATE
FREEZING SPRAY NW AND N OF A LINE FROM 50N56W TO 58N50W TO
59N44W…NW OF A LINE FROM 60N42W TO 64N35W…AND NW OF A LINE
FROM 46N63W TO 50N56W.
.48 HOUR FORECAST MODERATE TO HEAVY FREEZING SPRAY N OF 55N W OF
58W…AND N OF 65N W OF 63W. ELSEWHERE LIGHT TO MODERATE
FREEZING SPRAY NW AND N OF A LINE FROM 43N65W TO 51N50W TO
60N45W…AND N OF 63N WITHIN 60 NM E OF GREENLAND.

.SYNOPSIS AND FORECAST.

.DENSE FOG. VSBY OCCASIONALLY LESS THAN 1 NM N OF 63N E OF
GREENLAND…N OF 52N W OF 50W…AND FROM 40N TO 44N BETWEEN 62W
AND 67W.
.24 HOUR FORECAST DENSE FOG FROM 55N TO 64N BETWEEN 35W AND 63W.
.48 HOUR FORECAST DENSE FOG N OF 59N W OF 44W…AND FROM 41N TO
51N W OF 50W.

.FORECASTER KELLS. 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 1200 UTC THU DEC 19.
24 HOUR FORECAST VALID 1200 UTC FRI DEC 20.
48 HOUR FORECAST VALID 1200 UTC SAT DEC 21.

.WARNINGS.

.NONE.

.SYNOPSIS AND FORECAST.

.ATLC WITHIN 23N47W TO 26N54W TO 24N67W TO 19N67W TO 18N62W TO
20N59W TO 23N47W…INCLUDING IN ATLANTIC EXPOSURES NE TO E WINDS
20 TO 25 KT. SEAS 10 TO 12 FT IN NE SWELL. ELSEWHERE WITHIN
31N47W TO 31N67W TO 23N74W TO 10N59W TO 07N43W TO 20N50W TO
31N47W…INCLUDING IN ATLANTIC EXPOSURES AND PASSAGES…WINDS 20
KT OR LESS. SEAS 8 TO 11 FT IN NE SWELL.
.24 HOUR FORECAST WITHIN 22N45W TO 27N61W TO 23N72W TO 17N62W TO
08N51W TO 16N50W TO 22N45W…INCLUDING IN ATLANTIC EXPOSURES AND
PASSAGES…WINDS 20 KT OR LESS. SEAS 8 TO 10 FT IN NE TO E
SWELL.
.48 HOUR FORECAST WITHIN 18N51W TO 20N50W TO 21N57W TO 18N61W TO
11N57W TO 18N51W…INCLUDING IN ATLANTIC EXPOSURES AND
PASSAGES…
WINDS 20 KT OR LESS. SEAS 8 FT IN NE SWELL.

.ATLC LOW PRES NEAR 31N38.5W 1020 MB. WITHIN 31N37.5W TO 31N42W
TO 30.5N40W TO 30N39W TO 30N37.5W TO 31N37.5W WINDS 20 TO 30 KT.
SEAS 10 TO 12 FT IN NE SWELL. ELSEWHERE WITHIN 31N35W TO 31N47W
TO 21N47W TO 23N40W TO 19N35W TO 31N35W WINDS 20 KT OR LESS. SEAS
8 TO 11 FT IN N SWELL.
.24 HOUR FORECAST LOW PRES N OF AREA NEAR 32N43W 1009 MB. WITHIN
31N42.5W TO 31N47W TO 30N46.5W TO 30N43.5W TO 31N42.5W WINDS 20
TO 25 KT. SEAS 10 TO 14 FT IN NE SWELL. ELSEWHERE WITHIN 31N35W
TO 31N49W TO 29N47W TO 28N41W TO 22N35W TO 31N35W WINDS 20 KT OR
LESS. SEAS 8 TO 12 FT IN N TO NE SWELL.
.48 HOUR FORECAST LOW PR