High seas forecast includes warnings for hurricane-force winds and significant waves.

FZPN02 KWBC 192325
HSFEPI 2345

HIGH SEAS FORECAST FOR METAREA XII
NWS OCEAN PREDICTION CENTER WASHINGTON DC
2345 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SUPERSEDED BY NEXT ISSUANCE IN 6 HOURS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).

SECURITE

PACIFIC N OF 30N AND S OF 67N E OF A LINE FROM BERING STRAIT
TO 50N 160E

ALL FORECASTS VALID OVER ICE FREE FORECAST WATERS

SYNOPSIS VALID 1800 UTC DEC 19.
24 HOUR FORECAST VALID 1800 UTC DEC 20.
48 HOUR FORECAST VALID 1800 UTC DEC 21.

.WARNINGS.

…HURRICANE FORCE WIND WARNING…
.LOW 41N170W 980 MB MOVING SE 45 KT. WITHIN 240 NM SW
QUADRANTS WINDS 50 TO 75 KT. SEAS 24 TO 38 FT. ELSEWHERE WITHIN
420 NM SE AND 360 NM SW QUADRANTS WINDS 35 TO 50 KT. SEAS 18TO
24 FT. ALSO WITHIN 600 NM S SEMICIRCLE AND 840 NM NW QUADRANT
WINDS
25 TO 40 KT. SEAS 12 TO 20 FT.
.24 HOUR FORECAST LOW 41N147W 968 MB. WITHIN 90 NM W OF A LINE
FROM LOW TO 35N142W WINDS 50 TO 65 KT. SEAS 24 TO 36 FT.
ELSEWHERE FROM 32N TO 43N BETWEEN 138W AND 146W WINDS 35 TO 50
KT. SEAS 24 TO 36 FT. ALSO S OF 44N BETWEEN 134W AND 157W WINDS ELSEWHERE
WITHIN 420 NM SE…360 NM SW…AND 180 NM NW QUADRANTS WINDS 40
TO 60 KT. SEAS 16 TO 28 FT. ALSO S OF 45N W OF 168W WINDS 25 TO
40 KT. SEAS 9 TO 18 FT.
.48 HOUR FORECAST LOW 43N155W 950 MB. WITHIN 480 NM SW SEMICIRCLE
WINDS 50 TO 65 KT. SEAS 28 TO 54 FT. ELSEWHERE WITHIN 600 NM S
SEMICIRCLE WINDS 40 TO 60 KT. SEAS 20 TO 36 FT. ALSO S OF 48N
BETWEEN 139W AND 170W WINDS 25 TO 40 KT. SEAS 12 TO 24 FT.

…STORM WARNING…
.LOW 55N150W 969 MB MOVING NW 25 KT. WITHIN 300 NM N QUADRANT AND
E OF A LINE FROM 52N131W TO 50N130W WINDS 40 TO 50 KT. SEAS 12 TO
20 FT. N OF 50N E OF 155W AND FROM 35N TO 50N BETWEEN 125W AND
134W AND E OF A LINE FROM 55N137W TO 42N129W WINDS 25 TO 40 KT.
SEAS 9 TO 18 FT.
.24 HOUR FORECAST LOW 57N164W 979 MB. WITHIN 240 NM N QUADRANT
WINDS 20 TO 30 KT. SEAS 9 TO 14 FT.
.48 HOUR FORECAST LOW 57N176W 979 MB. N OF 55N W OF 170W WINDS 25
TO 35 KT. SEAS 9 TO 14 FT.

…GALE WARNING…
..COMPLEX LOW WITH MEAN CENTER 55N180W 970 MB MOVING NW 15 KT. N
OF 55N W OF 168W AND N OF 50N W OF 175E WINDS 25 TO 40 KT. SEAS
10 TO 20 FT.
.24 HOUR FORECAST LOW WELL W OF AREA. N OF 58N W OF 168W WINDS 25
TO 35 KT. SEAS TO 12 FT.
.48 HOUR FORECAST CONDITIONS AS DESCRIBED WITH LOW 57N176W ABOVE.

…GALE WARNING…
.48 HOUR FORECAST LOW 49N177W 973 MB. WITHIN 1020 NM SW QUADRANT
WINDS 25 TO 35 KT. SEAS 12 TO 20 FT.

…HEAVY FREEZING SPRAY WARNING…
.LIGHT FREEZING SPRAY N OF 63N W OF ALASKA.
.24 HOUR MODERATE TO HEAVY FREEZING SPRAY N OF 63N W OF ALASKA.
LIGHT TO MODERATE FREEZING SPRAY N OF A LINE FROM 58N164W TO
62N175W.
.48 HOUR FORECAST MODERATE TO HEAVY FREEZING SPRAY N OF 63N W OF
ALASKA. ELSEWHERE LIGHT TO MODERATE FREEZING SPRAY N OF 61N W OF
ALASKA.

.SYNOPSIS AND FORECAST.

.UNLESS OTHERWISE NOTED IN WARNING SECTION…N OF 30N W OF 125W
WINDS TO 25 KT. SEAS 9 TO 15 FT.
.24 HOUR FORECAST UNLESS OTHERWISE NOTED IN WARNING SECTION…S
OF 50N W OF 130W WINDS TO 25 KT. SEAS 9 TO 15 FT.
.48 HOUR FORECAST UNLESS OTHERWISE NOTED IN WARNING SECTION…S
OF 50N W OF 160W AND S OF 60N BETWEEN 125W AND 160W WINDS TO 25
KT. SEAS 9 TO 15 FT.

.DENSE FOG. VSBY OCCASIONALLY 1 NM OR LESS N OF 53N W OF
178W AND FROM 53N TO 60N BETWEEN 146W AND 159W.
.24 HOUR FORECAST DENSE FOG FROM 42N TO 46N BETWEEN 165W AND
175E.
.48 HOUR FORECAST DENSE FOG N OF 55N W OF 160W.

.FORECASTER KREKELER. OCEAN PREDICTION CENTER.

NWS NATIONAL HURRICANE CENTER MIAMI FL

E PACIFIC FROM THE EQUATOR TO 30N E OF 140W AND 03.4S TO THE
EQUATOR E OF 120W

SYNOPSIS VALID 1800 UTC THU DEC 19.
24 HOUR FORECAST VALID 1800 UTC FRI DEC 20.
48 HOUR FORECAST VALID 1800 UTC SAT DEC 21.

.WARNINGS.

…GALE WARNING…
.WITHIN 15N94W TO 16N95W TO 15N96W TO 14N96W TO 13N95W TO 14N95W
TO 15N94W…INCLUDING THE GULF OF TEHUANTEPEC…N TO NE WINDS 30
TO 40 KT. SEAS 11 TO 13 FT. ELSEWHERE…WITHIN 16N94W TO 16N95W
TO 14N97W