297
FZPN02 KWBC 171725
HSFEPI

HIGH SEAS FORECAST FOR METAREA XII
NWS OCEAN PREDICTION CENTER WASHINGTON DC
1745 UTC TUE SEP 17 2024

CCODE/1:31:12:01:00/AOW+POR/NWS/CCODE
SUPERSEDED BY NEXT ISSUANCE IN 6 HOURS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
VOSOPS@NOAA.GOV(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 1200 UTC SEP 17.
24 HOUR FORECAST VALID 1200 UTC SEP 18.
48 HOUR FORECAST VALID 1200 UTC SEP 19.

.WARNINGS.

...STORM WARNING...
.LOW 58N173W 973 MB MOVING NE 25 KT. WITHIN 180 NM NE AND 300 NM
SE SEMICIRCLES WINDS 40 TO 50 KT. SEAS 12 TO 20 FT. ELSEWHERE
FROM 44N TO 62N BETWEEN 156W AND 173E WINDS 20 TO 30 KT. SEAS TO
12 FT.
.24 HOUR FORECAST LOW 59N156W 989 MB. WITHIN 420 NM SW SEMICIRCLE
WINDS 25 TO 40 KT. SEAS 15 TO 22 FT. ELSEWHERE N OF 52N BETWEEN
139W AND 168W WINDS TO 25 KT. SEAS TO 12 FT.
.48 HOUR FORECAST LOW 59N140W 1007 MB. FROM 53N TO 59N BETWEEN
136W AND 156W WINDS 25 TO 35 KT. SEAS 9 TO 16 FT.

...GALE WARNING...
.18 HOUR FORECAST LOW 42N165E 1007 MB. WITHIN 300 NM SE
SEMICIRCLE WINDS 25 TO 35 KT. SEAS TO 9 FT.
.24 HOUR FORECAST LOW 43N169E 1004 MB. WITHIN 420 NM SE
SEMICIRCLE WINDS 25 TO 35 KT. SEAS TO 10 FT.
.48 HOUR FORECAST COMPLEX LOW WITH MAIN CENTER 46N178W 1006 MB.
WITHIN 360 NM SE OF A LINE FROM 52N163W TO LOW TO 38N173E WINDS
20 TO 30 KT. SEAS 8 TO 12 FT.

.SYNOPSIS AND FORECAST.

.FROM 33N TO 40N E OF 130W AREA OF N WINDS TO 25 KT. SEAS TO 10
FT.
.24 HOUR FORECAST CONDITIONS DIMINISHED.

.LOW 55N130W 1001 MB MOVING NE 20 KT. FROM 43N TO 54N BETWEEN
132W AND 140W WINDS TO 25 KT. SEAS 8 TO 10 FT.
.24 HOUR FORECAST LOW 42N126W 1010 MB. FROM 38N TO 49N BETWEEN
127W AND 132W WINDS TO 25 KT. SEAS TO 10 FT.
.48 HOUR FORECAST LOW DISSIPATED. FROM 36N TO 49N BETWEEN 125W
AND 130W WINDS TO 25 KT. SEAS TO 9 FT.

.48 HOUR FORECAST N OF 53N BETWEEN 174E AND 178E WINDS TO 25 KT.
SEAS TO 8 FT.

.48 HOUR FORECAST LOW W OF AREA NEAR 47N157E 996 MB. FROM 39N TO
46N W OF 164E WINDS 20 TO 30 KT. SEAS TO 10 FT.

.DENSE FOG. VSBY OCCASIONALLY LESS THAN 1 NM FROM 46N TO 51N
BETWEEN 154W AND 166W...WITHIN 60 NM NW OF A LINE FROM 45N167W TO
43N171W...FROM 43N TO 45N BETWEEN 154W AND 158W...AND WITHIN 60
NM NW OF A LINE FROM 58N170W TO 57N173W
.24 HOUR FORECAST DENSE FOG WITHIN 180 NM NW OF A LINE FROM
46N147W TO 44N153W TO 45N161W AND N OF 59N BETWEEN 137W AND 150W.

.48 HOUR FORECAST DENSE FOG FROM 45N TO 50N BETWEEN 152W AND
180W.

.FORECASTER HYDE. 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 1200 UTC TUE SEP 17.
24 HOUR FORECAST VALID 1200 UTC WED SEP 18.
48 HOUR FORECAST VALID 1200 UTC THU SEP 19.

.WARNINGS.

.NONE.

.SYNOPSIS AND FORECAST.

.WITHIN 31N113W TO 32N115W TO 30N115W TO 29N113W TO 29N112W TO
31N113W...INCLUDING THE GULF OF CALIFORNIA... W TO NW WINDS 20
TO 25 KT. SEAS LESS THAN 8 FT.
.06 HOUR FORECAST CONDITIONS IMPROVE. WINDS 20 KT OR LESS. SEAS
LESS THAN 8 FT.

.WITHIN 15N139W TO 16N140W TO 14N140W TO 14N139W TO 14N138W TO
15N139W WINDS 20 KT OR LESS. SEAS 8 TO 10 FT IN NE SWELL.
.06 HOUR FORECAST CONDITIONS IMPROVE. WINDS 20 KT OR LESS. SEAS
LESS THAN 8 FT.

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

CONVECTION VALID AT 1500 UTC TUE SEP 17...

.INTERTROPICAL CONVERGENCE ZONE/MONSOON TROUGH...
THE MONSOON TROUGH EXTENDS FROM THE COAST OF COSTA RICA NEAR
10N84W WESTWARD TO 10N117W. FROM THERE, IT TRANSITIONS TO THE
ITCZ, WHICH EXTENDS WEST-SOUTHWESTWARD TO 06N140W. SCATTERED
MODERATE AND ISOLATED STRONG CONVECTION IS NOTED FROM 07N-12N
BETWEEN 127W-140W, FROM 08N-10N BETWEEN 103-120W, AND FROM
07N-14N BETWEEN 88W-91W.

.FORECASTER LANDSEA. NATIONAL HURRICANE CENTER.

NATIONAL WEATHER SERVICE HONOLULU HI

NORTH PACIFIC EQUATOR TO 30N BETWEEN 140W AND 160E

SYNOPSIS VALID 1200 UTC SEP 17 2024.
24 HOUR FORECAST VALID 1200 UTC SEP 18 2024.
48 HOUR FORECAST VALID 1200 UTC SEP 19 2024.

.WARNINGS.


.NONE.

.SYNOPSIS AND FORECAST.

.TROUGH 21N161E 18N160E MOVING WNW 15 KT. ISOLATED MODERATE
TSTMS WITHIN 90 NM OF TROUGH.
.24 HOUR FORECAST TROUGH MOVED W OF AREA.

.WINDS 20 TO 25 KT IN AREA BOUNDED BY 11N165W 16N163W 20N158W
23N162W 30N162W 30N150W 25N147W 21N140W 14N140W 10N160W
11N165W...EXCEPT FROM 18N TO 25N BETWEEN 157W AND 149W.
.24 HOUR FORECAST WINDS 20 TO 25 KT FROM 12N TO 19N E OF 170W.
.48 HOUR FORECAST WINDS EASED BELOW 20 KT.

.WINDS 20 KT OR LESS REMAINDER FORECAST AREA.

.SEAS 8 TO 11 FT FROM 07N TO 18N BETWEEN 164W AND 145W.
.24 HOUR FORECAST SEAS 8 TO 10 FROM 11N AND 17N BETWEEN 169W AND
155W. SEAS 8 TO 9 FT FROM 14N TO 18N BETWEEN 154W AND 143W.
.48 HOUR FORECAST SEAS 8 TO 9 FT FROM 13N TO 15N BETWEEN 170W AND
167W.

.SEAS 8 FT OR LOWER REMAINDER FORECAST AREA.

.ITCZ 06N140W 06N144W 09N147W 09N150W 08N160W 08N175W 09N179E
08N169E. ISOLATED TO LOCALLY SCATTERED MODERATE TSTMS WITHIN 210
NM OF ITCZ.

.SCATTERED MODERATE TSTMS N OF 24N BETWEEN 179W AND 169W...AND
FROM 14N TO 22N BETWEEN 166E AND 172E.


$$

.FORECASTER PIERCE. HONOLULU HI.