FZPN02 KWBC 211125
HSFEPI 1145
HIGH SEAS FORECAST FOR METAREA XII
NWS OCEAN PREDICTION CENTER WASHINGTON DC
1145 UTC SAT SEP 21 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SUPERSEDED BY NEXT ISSUANCE IN 6 HOURS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 ANY TROPICAL CYCLONE INFORMATION BEYOND 48 HOURS REFERENCE
THE ASSOCIATED NWS TROPICAL CYCLONE FORECAST/ADVISORY (TCM).
THE NATIONAL WEATHER SERVICE IS ACCEPTING PUBLIC COMMENTS UNTIL
OCTOBER 16 2024 ON A PROPOSAL TO REPLACE FEET WITH METERS WHEN
DESCRIBING SEAS IN A VARIETY OF NATIONAL MARINE CENTER TEXT AND
GRAPHICAL PRODUCTS FOR THE HIGH SEAS AREAS ONLY.
TO LEARN MORE PLEASE VISIT (WEB ADDRESS LOWERCASE)
HTTPS://OCEAN.WEATHER.GOV/PROPOSED-METERS.PHP
FROM OCTOBER 15 TO APRIL 1, DUE TO THE CLIMATOLOGY OF THE NORTH
PACIFIC AND THE FREQUENCY AND VOLUME OF WEATHER HAZARDS, ALONG
WITH CUSTOMER FEEDBACK, HIGH SEAS FORECASTS WILL BE LIMITED TO
WINDS OF 25 TO 35 KNOTS AND HIGHER, AND SEAS OF 12 FEET OR
GREATER, ALONG WITH FREEZING SPRAY, DENSE FOG, VOLCANIC ASH,
AND ANYTHING TROPICAL (INCLUDING A DEPRESSION). LESSER
CONDITIONS WILL BE INCLUDED FOR WARNING CONDITIONS AND TO
PRESERVE CONTINUITY WHERE APPROPRIATE.
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 0600 UTC SEP 21.
24 HOUR FORECAST VALID 0600 UTC SEP 22.
48 HOUR FORECAST VALID 0600 UTC SEP 23.
.WARNINGS.
…HURRICANE FORCE WIND WARNING…
.LOW 48N165E 971 MB MOVING NE 40 KT. WITHIN 240 NM SW SEMICIRCLE
WINDS 55 TO 65 KT. SEAS 20 TO 30 FT. ELSEWHERE FROM 36N TO 52N W
OF 178E WINDS 25 TO 40 KT. SEAS 12 TO 18 FT.
.12 HOUR FORECAST LOW 49N175E 973 MB. WITHIN 420 NM S SEMICIRCLE
AND FROM 40N TO 46N BETWEEN 168W AND 179W WINDS 35 TO 50 KT. SEAS
20 TO 32 FT. ELSEWHERE W OF A LINE FROM 42N160E TO 36N179E TO
42N161W TO 50N173W TO 53N173E TO 55N167W TO 61N176W WINDS 20 TO
30 KT. SEAS 10 TO 15 FT.
.24 HOUR FORECAST LOW 52N172W 975 MB. WITHIN 540 NM S SEMICIRCLE
AND WITHIN 300 NM SE OF A LINE FROM 49N161W TO 41N173W WINDS 35
TO 45 KT. SEAS 20 TO 33 FT…HIGHEST SW OF CENTER. ELSEWHERE
WITHIN 600 NM N SEMICIRCLE AND FROM 38N TO 53N BETWEEN 150W AND
171E WINDS 20 TO 30 KT. SEAS 12 TO 20 FT.
48 HOUR FORECAST COMPLEX LOW WITH MAIN CENTER NEAR 55N156W 975
MB. WITHIN 780 NM S SEMICIRCLE…WITHIN 240 NM N AND 600 NM NE
QUADRANTS WINDS 25 TO 40 KT. SEAS 15 TO 25 FT HIGHEST SW OF
CENTER. ELSEWHERE FROM 41N TO 64N BETWEEN 128W TO 173W WINDS 20
TO 30 KT. SEAS 9 TO 18 FT…HIGHEST SW OF CENTER.
…GALE WARNING…
.LOW 57N141W 991 MB MOVING NE 15 KT. WITHIN 180 NM NE AND 120 NM
NW QUADRANTS AND WITHIN 540 S QUADRANT… WINDS 25 TO 35 KT. SEAS
9 TO 15 FT.
.24 HOUR FORECAST LOW 59N131W 1003 MB. WITHIN 120 NM SW QUADRANT
WINDS TO 25 KT. SEAS TO 8 FT.
.48 HOUR FORECAST LOW INLAND NEAR 60N129W 1006 MB. ASSOCIATED
CONDITIONS DIMINISHED.
…GALE WARNING…
.LOW 53N177W 992 MB DRIFTING N. WITHIN 360 NM NE AND 300 NM S
SEMICIRCLES WINDS 25 TO 35 KT. SEAS 8 TO 14 FT. ELSEWHERE FROM
47N TO 60N BETWEEN 167W AND 177E WINDS TO 25 KT. SEAS TO 10 FT.
.24 HOUR FORECAST LOW ABSORBED BY LOW 52N17
