High seas forecast: storm warnings, significant wave heights, and weather updates.

FZNT01 KWBC 160418
HSFAT1 0430

HIGH SEAS FORECAST FOR METAREA IV
NWS OCEAN PREDICTION CENTER WASHINGTON DC
0430 UTC MON DEC 16 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SUPERSEDED BY NEXT ISSUANCE IN 6 HOURS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 0000 UTC DEC 16.
24 HOUR FORECAST VALID 0000 UTC DEC 17.
48 HOUR FORECAST VALID 0000 UTC DEC 18.

.WARNINGS.

…STORM WARNING…
.COMPLEX LOW WITH FIRST LOW 37N42W 1012 MB MOVING NE 15 KT AND
SECOND LOW 33N51W 1018 KT MOVING E 30 KT. WITHIN 180 NM W AND NW
OF A FRONT FROM THE FIRST LOW TO THE SECOND LOW TO 42N40W WINDS
25 TO 35 KT. SEAS 9 TO 15 FT…HIGHEST NEAR 35N51W. ELSEWHERE
WITHIN 360 NM NW AND N OF FRONT FROM THE FIRST LOW TO THE SECOND
LOW TO 44N38W…FROM 31N TO 45N BETWEEN 50W AND 60W AND FROM 33N
TO 36N BETWEEN 60W AND 75W WINDS 20 TO 30 KT. SEAS 8 TO 12 FT.
.24 HOUR FORECAST MAIN LOW 41N35W 999 MB AND SECOND LOW
DISSIPATED. FROM 38N TO 46N E OF 40W WINDS 35 TO 50 KT. SEAS 12
TO 25 FT…HIGHEST NEAR 41N35W. ELSEWHERE FROM 31N TO 47N E OF
43W WINDS 25 TO 35 KT. SEAS 8 TO 16 FT.
.48 HOUR FORECAST LOW E OF AREA 42N27W 994 MB. FROM 37N TO 47N E
OF 38W WINDS TO 25 KT. SEAS 9 TO 16 FT IN N AND NE SWELL.
ELSEWHERE FROM 31N TO 45N E OF 40W WINDS LESS THAN 25 KT. SEAS 8
TO 12 FT IN NE SWELL.

…GALE WARNING…
.LOW E OF AREA 64N32W 988 MB NEARLY STATIONARY. FROM 58N TO 61N E
OF 43W WINDS 30 TO 40 KT. SEAS 14 TO 22 FT…HIGHEST E OF 39W.
ELSEWHERE FROM 53N TO 60N E OF 45W WINDS 20 TO 30 KT. SEAS 9 TO
15 FT IN MIXED SWELL.
.24 HOUR FORECAST COMPLEX LOW E OF THE AREA WITH MAIN CENTER
64N32W 994 MB. N OF 62N E OF 38W WINDS 25 TO 35 KT. SEAS 9 TO 15
FT
.48 HOUR FORECAST COMPLEX LOW AND CONDITIONS E OF AREA.

…GALE WARNING…
.FROM 50N TO 60N W OF 45W AND IN THE GULF OF SAINT LAWRENCE AREA
OF W TO NW WINDS 20 TO 30 KT. SEAS 8 TO 12 FT…EXCEPT TO 8 FT IN
THE GULF OF SAINT LAWRENCE.
.18 HOUR FORECAST LOW 64N56W 992 MB. WITHIN 180 NM SE AND 300 NM
SW QUADRANTS WINDS 25 TO 35 KT. SEAS 8 TO 12 FT
.24 HOUR FORECAST LOW 64N53N 992 MB. WITHIN 90 NM N AND 120 NM NW
QUADRANTS WINDS 25 TO 35 KT. SEAS 8 TO 12 FT. ELSEWHERE N OF 50N
W OF 50W WINDS TO 25 KT. SEAS TO 10 FT.
.48 HOUR FORECAST LOW NW OF THE AREA 69N62W 991 MB. N OF 64N W OF
GREENLAND WINDS 20 TO 30 KT. SEAS TO 11 FT.

…GALE WARNING…
.48 HOUR FORECAST INLAND LOW 55N66W 994 MB. FROM 43N TO 51N
BETWEEN 56W AND 62W WINDS 25 TO 35 KT. SEAS 8 TO 12 FT. ELSEWHERE
FROM 38N TO 40N BETWEEN 59W AND 71W…FROM 40N TO 50N W OF 50W
AND FROM 50N TO 58N W OF 45W WINDS 20 TO 30 KT. SEAS TO 10 FT.

…HEAVY FREEZING SPRAY WARNING…
.LIGHT TO MODERATE FREEZING SPRAY FROM 52N TO 57N W OF 50W TO THE
COAST OF LABRADOR…FROM 58N TO 60N W OF 60W…N OF 60N W OF
GREENLAND AND N OF 63N E OF GREENLAND.
.24 HOUR FORECAST MODERATE TO HEAVY FREEZING SPRAY W AND NW OF A
LINE FROM 62N60W TO 67N55W. ELSEWHERE LIGHT TO MODERATE FREEZING
FROM 57N TO 60N W OF 55W TO THE COAST OF LABRADOR…N OF 60N W OF
GREENLAND AND N OF 62N E OF GREENLAND.
.48 HOUR FORECAST MODERATE TO HEAVY FREEZING SPRAY W AND NW OF A
LINE FROM 61N63W TO 64N57W TO 65N53W. ELSEWHERE LIGHT TO MODERATE
FREEZING FROM 56N TO 60N BETWEEN 50W W TO THE COAST OF
LABRADOR…N OF 60N W OF GREENLAND AND N OF 60N E OF GREENLAND.

.SYNOPSIS AND FORECAST.

.FROM 31N TO 33N W OF 60W AREA OF NE WINDS 20 TO 30 KT. SEAS 8 TO
15 FT IN MIXED SWELL.
.24 HOUR FORECAST CONDITIONS DIMINISHED.

.DENSE FOG. VSBY OCCASIONALLY LESS THAN 1 NM FROM 64N TO 66N W OF
55W.
.24 HOUR FORECAST DENSE FOG N OF 64N E OF GREENLAND.
.48 HOUR FORECAST DENSE FOG WITHIN 420 NM SW AND W OF A LINE FROM
58N47W TO 62N55W TO THE COAST OF LABRADOR AND FROM 48N TO 50N
BETWEEN 61W AND 64W IN THE GULF OF SAINT LAWRENCE.

.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 16.
24 HOUR FORECAST VALID 0000 UTC TUE DEC 17.
48 HOUR FORECAST VALID 0000 UTC WED DEC 18.

.WARNINGS.

.NONE.

.SYNOPSIS AND FORECAST.

.TROUGH EXTENDS FROM 28N68W TO 25N72W TO LOW PRES NEAR 20N74W
1010 MB. N OF 21N W OF 70W…AND ALSO N OF 22N BETWEEN 60W AND
70W NE TO E WINDS 20 TO 30 KT. SEAS 12 TO 16 FT E OF THE BAHAMAS
IN NE TO E SWELL…AND 8 TO 10 FT ELSEWHERE OUTSIDE THE BAHAMAS.
REMAINDER OF AREA N OF 20N W OF 57W WINDS 20 KT OR LESS. SEAS 8
TO 9 FT IN NE TO E SWELL.
.24 HOUR FORECAST TROUGH ALONG 74W. N OF 24N W OF 73W…AND ALSO
N OF 21N BETWEEN 60W AND 73W E WINDS 20 TO 25 KT. SEAS 8 TO 12
FT E OF THE BAHAMAS IN NE TO E SWELL.
.48 HOUR FORECAST TROUGH ALONG 80W. FROM 19N TO 28N BETWEEN 65W
AND 76W AND E OF THE BAHAMAS E WINDS 20 TO 25 KT. SEAS 8 TO 11
FT. ELSEWHERE N OF 20N BETWEEN 60W AND 80W AND E OF THE BAHAMAS
WINDS 20 KT OR LESS. SEAS 8 TO 9 FT IN NE TO E SWELL.

.LOW PRES NE OF AREA WITH ASSOCIATED TROUGH TO 24N35W TO 22N39W.
N OF 26N E OF 37W NW TO N WINDS 20 TO 30 KT. SEAS 14 TO 16 FT IN
NE SWELL. ELSEWHERE N OF 18N E OF 50W WINDS 20 KT OR LESS. SEAS
8 TO 12 FT IN N TO NE SWELL.
.18 HOUR FORECAST COLD FRONT FROM 31N42W TO 29N46W TO 28N57W. N
OF FRONT N TO NE WINDS 20 TO 25 KT. SEAS 9 TO 13 FT IN NE SWELL.
ELSEWHERE N OF 17N AND E OF A LINE FROM 17N43W TO 27N50W TO
25N60W WINDS 20 KT OR LESS. SEAS 8 TO 10 FT IN N TO NE SWELL.
.24 HOUR FORECAST COLD FRONT FROM 31N39W TO 28N47W TO 27N59W. N
OF FRONT N TO NE WINDS 20 TO 25 KT. SEAS 8 TO 12 FT…EXCEPT 9
TO 13 FT BETWEEN 51W AND 55W. ELSEWHERE N OF 15N AND E OF A LINE
FROM 15N35W TO 22N50W TO 24N57W TO 20N64W WINDS 20 KT OR LESS.
SEAS 8 TO 10 FT IN N TO NE SWELL.
.42 HOUR FORECAST STATIONARY FRONT FROM 29N35W TO 25N50W TO
25N59W. N OF FRONT TO 28N BETWEEN 42W AND 58W NE TO E WINDS 20
TO 25 KT. SEAS 8 TO 12 FT IN N TO NE SWELL…HIGHEST SEAS
BETWEEN 52W AND 55W. ELSEWHERE E OF 60W AND N OF A LINE FROM
30N35W TO 23N50W TO 20N60W WINDS 20 KT OR LESS. SEAS 8 TO 9 FT
IN NE TO E SWELL.
.48 HOUR FORECAST WEAKENING STATIONARY FRONT FROM 28N35W TO
25N50W TO 25N59W. LITTLE CHANGE…EXCEPT HIGHEST SEAS BETWEEN
54W AND 58W.

.CARIBBEAN N OF 18N BETWEEN 78W AND 85W NE WINDS 20 TO 25 KT.
SEAS TO 8 FT N OF 20N W OF 85W…INCLUDING THE YUCATAN CHANNEL.
.18 HOUR FORECAST WINDS 20 KT OR LESS. SEAS LESS THAN 8 FT.

.GULF OF MEXICO S OF 25N E OF 87W…INCLUDING THE STRAITS OF
FLORIDA…NE TO E WINDS 20 TO 25 KT. SEAS 8 TO 10 FT.
.06 HOUR FORECAST S OF 28N E OF 87W…INCLUDING THE STRAITS OF
FLORIDA…NE TO E WINDS 20 TO 25 KT. SEAS 8 TO 10 FT.
.18 HOUR FORECAST S OF 24N E OF 87W…INCLUDING THE STRAITS OF
FLORIDA…NE TO E WINDS 20 TO 25 KT. SEAS 8 TO 9 FT.
.24 HOUR FORECAST LITTLE CHANGE.
.42 HOUR FORECAST WINDS 20 KT OR LESS. SEAS LESS THAN 8 FT.

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

.FORECASTER AGUIRRE. NATIONAL HURRICANE CENTER.

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UUID DEE41C64-BB64-11EF-906D-0AFB0A270000 TX 1