High seas forecast includes storm warnings and significant wave heights.

FZPN02 KWBC 232325
HSFEPI 2345

HIGH SEAS FORECAST FOR METAREA XII
NWS OCEAN PREDICTION CENTER WASHINGTON DC
2345 UTC MON DEC 23 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SUPERSEDED BY NEXT ISSUANCE IN 6 HOURS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 23.
24 HOUR FORECAST VALID 1800 UTC DEC 24.
48 HOUR FORECAST VALID 1800 UTC DEC 25.

.WARNINGS.

…HURRICANE FORCE WIND WARNING…
.NEW LOW 42N135W 996 MB WILL RAPIDLY INTENSIFY MOVING NE AT 30
KT. WITHIN 300 NM E AND 420 NM SE QUADRANTS WINDS 40 TO 55 KT.
SEAS 18 TO 25 FT. ELSEWHERE FROM 30N TO 44N BETWEEN 125W AND 152W
WINDS 25 TO 40 KT. SEAS 18 TO 24 FT.
.06 HOUR FORECAST LOW 46N133W 964 MB. WITHIN 180 NM NE…120 NM
SE…AND 60 NM SW QUADRANTS WINDS 50 TO 65 KT. SEAS 20 TO 30 FT.
.24 HOUR FORECAST LOW 52N129W 978 MB. WITHIN 60 NM E AND 180 NM S
QUADRANT WINDS 35 TO 50 KT. SEAS 18 TO 32 FT…HIGHEST S
SEMICIRCLE. ELSEWHERE WITHIN 360 NM SE AND 420 NM SW QUADRANTS
WINDS 25 TO 35 KT. SEAS 14 TO 25 FT.
.48 HOUR FORECAST LOW DISSIPATED INLAND AND ASSOCIATED
CONDITIONS
DIMINISHED.

…STORM WARNING…
.LOW 49N173E 944 MB MOVING E 10 KT. WITHIN 540 NM S AND 840 NM SW
QUADRANTS…180 NM N OF A FRONT FROM 49N163E TO 51N174E TO
48N179W…AND WITHIN 240 NM E OF A FRONT FROM 48N164E TO 51N173W
TO 47N170W TO 38N172W TO 33N178W WINDS 40 TO 55 KT. SEAS 18 TO 36
FT. ELSEWHERE W OF A LINE FROM 30N167W TO 41N158W TO 56N178E
WINDS 25 TO 40 KT. SEAS 12 TO 28 FT…HIGHEST S AND SW OF THE
LOW.
.24 HOUR FORECAST LOW 47N177E 958 MB. FROM 34N TO 48N BETWEEN
154W AND 160E AND WITHIN 480 NM NW QUADRANT WINDS 35 TO 50 KT.
SEAS 24 TO 38 FT. ELSEWHERE FROM 30N TO 55N BETWEEN 153W AND 160E
WINDS 25 TO 40 KT. SEAS 14 TO 28 FT.
.48 HOUR FORECAST LOW 53N165W 959 MB. FROM 38N TO 45N BETWEEN
156W AND 174W WINDS 40 TO 55 KT. SEAS 28 TO 44 FT. ELSEWHERE FROM
30N TO 48N BETWEEN 155W AND 160E WINDS 25 TO 40 KT. SEAS 15 TO 30
FT.

…STORM WARNING…
.12 HOUR FORECAST NEW LOW 52N167W 952 MB. WITHIN 240 NM E AND SE
OF A FRONT FROM LOW CENTER TO 50N160W TO 44N159W TO 41N160W TO
35N170W TO 31N178W WINDS 35 TO 50 KT. SEAS 14 TO 26 FT.
.24 HOUR FORECAST LOW 55N160W 956 MB. WITHIN 160 NM S QUADRANT
AND WITHIN 360 NM E AND SE OF A FRONT FROM LOW CENTER TO 50N146W
TO 46N146W TO 32N168W WINDS 35 TO 50 KT. SEAS 14 TO 28 FT.
ELSEWHERE FROM 30N TO 58N BETWEEN 136W AND 169W WINDS 25 TO 40
KT. SEAS 10 TO 20 FT.
.48 HOUR FORECAST COMPLEX LOW WITH MAIN CENTER NEAR 54N167W 955
MB. WITHIN 180 NM N AND NW OF A LINE FROM 59N165W TO 53N169W
WINDS 35 TO 45 KT. SEAS 12 TO 24 FT. ELSEWHERE WITHIN 240 NM OF
LOW WINDS 25 TO 35 KT. SEAS 8 TO 16 FT.

…STORM WARNING…
.36 HOUR FORECAST NEW LOW 49N149W 962 MB. WITHIN 540 NM S
QUADRANT AND WITHIN 240 NM E OF A FRONT FROM 55N140W TO 53N134W
TO 39N148W TO 33N161W WINDS 35 TO 50 KT. SEAS 18 TO 28 FT.
.48 HOUR FORECAST LOW 53N143W 969 MB. WITHIN 540 NM SE AND 360 NM
S QUADRANTS AND WITHIN 240 NM E OF A FRONT FROM 55N142W TO
50N130W TO 46N135W TO 43N130W TO 38N144W WINDS 40 TO 55 KT. SEAS
18 TO 32 FT. ELSEWHERE FROM 33N TO 57N BETWEEN 125W AND 150W
WINDS 25 TO 40 KT. SEAS 15 TO 25 FT.

…GALE WARNING…
.LOW 50N140W 989 MB MOVING N 25 KT. FROM 45N TO 52N BETWEEN 126W
AND 158W WINDS 25 TO 40 KT. SEAS 15 TO 30 FT.
.24 HOUR FORECAST LOW 58N138W 986 MB. ASSOCIATED CONDITIONS
DIMINISHED.

…GALE WARNING…
.W AND NW OF A LINE FROM 65N169W TO 62N170W TO 56N178E NE WINDS
25 TO 40 KT. SEAS 10 TO 20 FT.
.24 HOUR FORECAST CONDITIONS ABSORBED INTO LOW 47N177E WITH
CONDITIONS DESCRIBED IN FIRST STORM WARNING ABOVE.

…GALE WARNING…
.42 HOUR FORECAST LOW 34N169E 1005 MB. S OF 35N W OF 170E WINDS
25 TO 35 KT. SEAS 12 TO 18 FT.
.48 HOUR FORECAST LOW 35N174W 1002 MB. WITHIN 480 NM SW
SEMICIRCLE WINDS 25 TO 35 KT. SEAS 10 TO 20 FT.

…GALE WARNING…
.42 HOUR FORECAST NEW LOW 56N148W 970 MB. WITHIN 300 NM NE
SEMICIRCLE WINDS 25 TO 40 KT. SEAS 9 TO 18 FT.
.48 HOUR FORECAST LOW 57N149W 970 MB. WITHIN 180 NM N AND 240 NM
NE QUADRANTS WINDS 25 TO 35 KT. SEAS 9 TO 18 FT.

…HEAVY FREEZING SPRAY WARNING…
.MODERATE TO HEAVY FREEZING SPRAY N OF 62N W OF ALASKA. ELSEWHERE
LIGHT TO MODERATE FREEZING SPRAY N OF A LINE FROM 58N163W TO
60N172W.
.24 HOUR FORECAST MODERATE TO HEAVY FREEZING SPRAY N OF 60N W OF
ALASKA. ELSEWHERE LIGHT TO MODERATE FREEZI