FZPN02 KWBC 172325
HSFEPI 2345
HIGH SEAS FORECAST FOR METAREA XII
NWS OCEAN PREDICTION CENTER WASHINGTON DC
2345 UTC TUE DEC 17 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SUPERSEDED BY NEXT ISSUANCE IN 6 HOURS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 17.
24 HOUR FORECAST VALID 1800 UTC DEC 18.
48 HOUR FORECAST VALID 1800 UTC DEC 19.
.WARNINGS.
…HURRICANE FORCE WIND WARNING…
.24 HOUR FORECAST LOW 40N162E 999 MB. WITHIN 480 NM S SEMICIRCLE
WINDS 25 TO 35 KT. SEAS 10 TO 14 FT.
.42 HOUR FORECAST LOW 42N180W 978 MB. WITHIN 60 NM S AND SW
QUADRANTS WINDS 55 TO 65 KT. SEAS 18 TO 30 FT.
.48 HOUR FORECAST LOW 41N173W 979 MB. WITHIN 60 NM S AND SW
QUADRANTS WINDS 55 TO 65 KT. SEAS 20 TO 31 FT. ALSO WITHIN 360 NM
S SEMICIRCLE WINDS 40 TO 55 KT. SEAS 15 TO 28 FT. ELSEWHERE
WITHIN AN AREA BOUNDED BY A LINE FROM 30N179W TO 44N163E TO
44N165W TO 30N165W TO 30N179W WINDS 25 TO 40 KT. SEAS 12 TO 25
FT.
…STORM WARNING…
.LOW 49N168W 957 MB MOVING N 05 KT. WITHIN 120 NM OF
CENTER…WITHIN 120 NM NE OF A LINE FROM LOW CENTER TO 43N160W TO
38N160W TO 32N163W…AND WITHIN 600 NM S OF A LINE FROM 43N160W
TO 49N169W WINDS 40 TO 50 KT. SEAS 17 TO 29 FT. ELSEWHERE S OF
50N W OF 153W WINDS 25 TO 40 KT. SEAS 11 TO 27 FT…HIGHEST NEAR
41N175E…EXCEPT WHERE DESCRIBED ABOVE BY COMPLEX LOW WITH MEAN
CENTER 37N163E.
.24 HOUR FORECAST COMPLEX LOW WITH MAIN CENTER 52N170W 952 MB AND
NEW SECOND CENTER 55N178W 964 MB. WITHIN 240 NM NE OF A LINE FROM
57N175W TO 53N158W…AND WITHIN 480 NM OF A LINE FROM 48N172E TO
45N170W WINDS 40 TO 50 KT. SEAS 10 TO 28 FT…HIGHEST S OF LINE.
ELSEWHERE N OF 53N W OF 153W…WITHIN 300 NM E SEMICIRCLE OF MAIN
CENTER…AND FROM 38N TO 52N W OF 160W WINDS 25 TO 40 KT. SEAS 12
TO 26 FT…HIGHEST S OF MAIN CENTER.
.48 HOUR FORECAST COMPLEX LOW WITH MAIN CENTER 54N173W 970 MB AND
SECOND CENTER 54N173E 975 MB. N OF 54N W OF 160W…WITHIN 360 NM
S SEMICIRCLE OF SECOND CENTER…AND W OF A LINE FROM 51N169W TO
43N160W WINDS 25 TO 40 KT. SEAS 10 TO 20 FT.
…STORM WARNING…
.COMPLEX LOW WITH MAIN CENTER 43N160W 979 MB MOVING NE 20 KT AND
SECOND CENTER 38N160W 989 MB MOVING NE 30 KT. CONDITIONS
DESCRIBED ABOVE WITH LOW 49N168W.
.24 HOUR FORECAST COMPLEX LOW WITH MAIN CENTER 50N154W 972 MB AND
SECOND CENTER 47N147W 978 MB. WITHIN 120 NM NE AND SE SEMICIRCLES
OF EACH CENTER…AND WITHIN 120 NM E OF A LINE FROM MAIN CENTER
TO SECOND CENTER TO 42N141W WINDS 40 TO 50 KT. SEAS 12 TO 22 FT.
ELSEWHERE WITHIN 420 NM NE AND E OF A LINE FROM MAIN CENTER TO
SECOND CENTER TO 42N140W TO 30N149W WINDS 25 TO 40 KT. SEAS 10 TO
20 FT.
.48 HOUR FORECAST COMBINED LOW 56N145W 982 MB. WITHIN 240 NM N
SEMICIRCLE WINDS 35 TO 45 KT. SEAS 12 TO 21 FT. ALSO NE AND E OF
A LINE FROM
