High seas forecast for North Atlantic with multiple warnings issued.

FZNT01 KWBC 202131
HSFAT1 2230

HIGH SEAS FORECAST FOR METAREA IV
NWS OCEAN PREDICTION CENTER WASHINGTON DC
2230 UTC FRI DEC 20 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SUPERSEDED BY NEXT ISSUANCE IN 6 HOURS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 1800 UTC DEC 20.
24 HOUR FORECAST VALID 1800 UTC DEC 21.
48 HOUR FORECAST VALID 1800 UTC DEC 22.

.WARNINGS.

…HURRICANE FORCE WIND WARNING…
.LOW 37N72W 1002 MB MOVING NE 30 KT. FROM 31N TO 42N BETWEEN 60W
AND 75W WINDS 25 TO 35 KT. SEAS 8 TO 12 FT.
.12 HOUR FORECAST LOW 42N65W 992 MB. FROM 38N TO 44N BETWEEN 58W
AND 67W WINDS 40 TO 50 KT. SEAS 10 TO 16 FT.
.24 HOUR FORECAST LOW 46N59W 979 MB. WITHIN 300 NM E…420 NM
S…AND 240 NM NW AND N QUADRANTS WINDS 45 TO 60 KT. SEAS 13 TO
23 FT. ELSEWHERE BETWEEN 76W AND A LINE FROM 31N56W TO 50N39W TO
54N44W WINDS 30 TO 45 KT. SEAS 9 TO 18 FT.
.42 HOUR FORECAST LOW 53N55W 967 MB. WITHIN 240 NM SE AND NW
QUADRANTS WINDS 50 TO 65 KT. SEAS 16 TO 30 FT.
.48 HOUR FORECAST LOW 56N51W 970 MB. WITHIN 300 NM SE
QUADRANT…WITHIN 240 NM W SEMICIRCLE…AND FROM 58N TO 60N
BETWEEN 42W AND 48W WINDS 50 TO 70 KT. SEAS 20 TO 36 FT.
ELSEWHERE FROM 49N TO 60N BETWEEN 35W AND 57W WINDS 40 TO 50 KT.
SEAS 12 TO 30 FT…HIGHEST S OF LOW. ALSO FROM 45N TO 63N
BETWEEN 35W AND 66W…N OF 63N W OF GREENLAND…AND FROM 40N TO
45N E OF 45W WINDS 25 TO 40 KT. SEAS 11 TO 22 FT…EXCEPT N OF
59N SEAS 8 TO 12 FT.

…STORM WARNING…
.COMPLEX LOW WITH MEAN CENTER E OF AREA NEAR 60N29W 972 MB
MOVING NE 30 KT. FROM 54N TO 60N E OF 46W WINDS 45 TO 60 KT.
SEAS 17 TO 23 FT. ELSEWHERE FROM 44N TO 60N E OF 43W…AND FROM
51N TO 60N BETWEEN 43W AND 64W WINDS 30 TO 45 KT. SEAS 10 TO 20
FT. ALSO WITHIN 240 NM SE AND S OF A FRONT FROM 46N43W TO 39N60W
WINDS 20 TO 30 KT. SEAS TO 10 FT.
.24 HOUR FORECAST LOW WELL E OF AREA. FROM 57N TO 60N E OF
43W…AND N OF 63N BETWEEN 36W AND 40W WINDS 40 TO 55 KT. SEAS
15 TO 30 FT. ELSEWHERE N OF A LINE FROM 53N35W TO 58N44W WINDS
25 TO 40 KT. SEAS 10 TO 20 FT.
.48 HOUR FORECAST LOW AND CONDITIONS E OF AREA.

…STORM WARNING…
.LOW 63N54W 983 MB MOVING SE 10 KT. WITHIN 120 NM SW SEMICIRCLE
WINDS 40 TO 55 KT. SEAS 15 TO 23 FT. ELSEWHERE N OF 60N W OF 45W
WINDS 25 TO 40 KT. SEAS 8 TO 16 FT.
.24 HOUR FORECAST LOW DISSIPATED. CONDITIONS DESCRIBED IN ABOVE
PARAGRAPH.

…GALE WARNING…
.LOW 32N42W 1010 MB MOVING NW 05 KT. FROM 31N TO 40N E OF 48W
WINDS 25 TO 35 KT. SEAS 8 TO 14 FT.
.24 HOUR FORECAST LOW 34N44W 1012 MB. FROM 31N TO 45N E OF 44W
WINDS 20 TO 30 KT. SEAS TO 11 FT.
.48 HOUR FORECAST LOW 39N43W 1018 MB. FROM 31N TO 40N E OF 43W
WINDS 20 TO 30 KT. SEAS 8 TO 12 FT.

…GALE WARNING…
.24 HOUR FORECAST N OF 61N W OF 51W AREA OF SW WINDS 25 TO 35
KT. SEAS TO 11 FT.
.48 HOUR FORECAST CONDITIONS DESCRIBED ABOVE WITH LOW 56N51W.

…GALE WARNING…
.48 HOUR FORECAST NEW LOW 39N55W 1008 MB. FROM 31N TO 42N
BETWEEN 46W AND 71W WINDS 25 TO 40 KT. SEAS 8 TO 12 FT.

…HEAVY FREEZING SPRAY WARNING…
.MODERATE TO HEAVY FREEZING SPRAY N OF 53N W OF 53W. ELSEWHERE
LIGHT TO MODERATE FREEZING SPRAY NW AND N OF A LINE FROM 46N63W
TO 54N45W TO 60N45W TO 65N35W.
.24 HOUR FORECAST MODERATE TO HEAVY FREEZING SPRAY NW AND N OF A
LINE FROM 59N63W TO 65N64W TO 63N50W. ELSEWHERE LIGHT TO
MODERATE FREEZING SPRAY NW AND N OF A LINE FROM 46N64W TO
64N35W.
.48 HOUR FORECAST MODERATE TO HEAVY FREEZING SPRAY NW AND N OF
LINE FROM 55N59W TO 63N52W. ELSEWHERE LIGHT TO MODERATE FREEZING
SPRAY NW AND N OF A LINE FROM 40N71W TO 45N58W TO 61N53W TO
59N43W TO 63N35W.

.SYNOPSIS AND FORECAST.

.DENSE FOG. VSBY OCCASIONALLY LESS THAN 1 NM FROM 57N TO 65N
BETWEEN 35W AND 63W.
.24 HOUR FORECAST DENSE FOG FROM 43N TO 55N BETWEEN 42W AND
67W…AND N OF 64N W OF GREENLAND.
.48 HOUR FORECAST DENSE FOG FROM 49N TO 53N E OF 48W…N OF 63N
W OF 50W…AND N OF 61N E OF 35W.

.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 1800 UTC FRI DEC 20.
24 HOUR FORECAST VALID 1800 UTC SAT DEC 21.
48 HOUR FORECAST VALID 1800 UTC SUN DEC 22.

.WARNINGS.

.NONE.

.SYNOPSIS AND FORECAST.

.ATLC WITHIN 27N69W TO 27N70W TO 26N71W TO 25N69W TO 26N70W TO
27N69W E TO SE WINDS 20 TO 25 KT. SEAS 8 TO 10 FT IN E SWELL.
ELSEWHERE WITHIN 21N44W TO 28N71W TO 21N71W TO 18N63W TO 08N54W
TO 15N52W TO 21N44W…INCLUDING IN ATLANTIC EXPOSURES AND
PASSAGES…WINDS 20 KT OR LESS. SEAS 8 TO 11 FT IN NE TO E SWELL.
.24 HOUR FORECAST WITHIN 20N53W TO 20N55W TO 21N56W TO 19N56W TO
18N54W TO 19N52W TO 20N53W WINDS 20 KT OR LESS. SEAS 8 FT IN NE
SWELL.
.36 HOUR FORECAST CONDITIONS IMPROVE. WINDS 20 KT OR LESS. SEAS
LESS