370
FZPN02 KWBC 201125
HSFEPI

HIGH SEAS FORECAST FOR METAREA XII
NWS OCEAN PREDICTION CENTER WASHINGTON DC
1145 UTC FRI SEP 20 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SUPERSEDED BY NEXT ISSUANCE IN 6 HOURS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 0600 UTC SEP 20.
24 HOUR FORECAST VALID 0600 UTC SEP 21.
48 HOUR FORECAST VALID 0600 UTC SEP 22.

.WARNINGS.

...STORM WARNING...
.12 HOUR FORECAST 47N157E 983 MB. FROM 40N TO 48N W OF 165E WINDS
25 TO 35 KT. SEAS TO 10 FT.
.24 HOUR FORECAST LOW 48N165E 973 MB. WITHIN 300 NM SW QUADRANT
WINDS 40 TO 55 KT. SEAS 18 TO 30 FT...HIGHEST SW OF CENTER.
ELSEWHERE FROM 37N TO 52N W OF 177E WINDS 20 TO 35 KT. SEAS 12 TO
18 FT.
48 HOUR FORECAST COMPLEX LOW WITH MAIN CENTER NEAR 51N175W 975
MB. WITHIN 480 S SEMICIRCLE...WITHIN 600 NM E QUADRANT...AND
WITHIN 180 NM OF A FRONT FROM 49N159W TO 41N173W WINDS 35 TO 45
KT. SEAS 18 TO 30 FT HIGHEST SW OF CENTER. ELSEWHERE FROM 37N TO
61N BETWEEN 153W TO 168E WINDS 25 TO 35 KT. SEAS 9 TO 18
FT...HIGHEST SW OF CENTER.

...GALE WARNING...
.LOW 52N159W 999 MB MOVING NE 30 KT. WITHIN 240 NM N
SEMICIRCLE...FROM 46N TO 53N BETWEEN 141W AND 164W...AND WITHIN
180 NM SE OF A LINE FROM 45N165W TO 40N178W WINDS 25 TO 35 KT.
SEAS 8 TO 13 FT.
.24 HOUR FORECAST LOW 57N142W 991 MB. WITHIN 120 NM N SEMICIRCLE
AND WITHIN 120 NM W QUADRANT WINDS 25 TO 40 KT. SEAS 9 TO 15 FT.
ELSEWHERE WITHIN 600 NM SE QUADRANT WINDS 20 TO 30 KT. SEAS 8 TO
13 FT.
.48 HOUR FORECAST LOW 57N137W 1000 MB. WITHIN 120 NM SW QUADRANT
WINDS TO 25 KT. SEAS TO 8 FT.

...GALE WARNING...
.FROM 36N TO 43N BETWEEN 124W AND 129W WINDS 20 TO 30 KT. SEAS 8
TO 12 FT.
.18 HOUR FORECAST FROM 38N TO 43N E OF 127W WINDS 25 TO 35 KT.
SEAS 8 TO 14 FT. ELSEWHERE FROM 35N TO 44N BETWEEN 124W AND 129W
WINDS 20 TO 30 KT. SEAS 8 TO 12 FT.
.24 HOUR FORECAST FROM 36N TO 44N BETWEEN 124W AND 130W WINDS 20
TO 30 KT. SEAS 9 TO 15 FT.
.48 HOUR FORECAST FROM 33N TO 43N BETWEEN 124W AND 130W WINDS 20
TO 30 KT. SEAS 8 TO 13 FT.

...GALE WARNING...
.LOW 50N174E 988 MB MOVING NE 20 KT. WITHIN 240 NM NE AND 360 NM
SE SEMICIRCLES WINDS 25 TO 35 KT. SEAS 8 TO 14 FT. ELSEWHERE FROM
41N TO 53N BETWEEN 176W AND 163W WINDS TO 25 KT. SEAS TO 10 FT.
.24 HOUR FORECAST LOW 53N175W 992 MB. WITHIN 180 NM N SEMICIRCLE
WINDS 25 TO 35 KT. SEAS 8 TO 14 FT. ELSEWHERE WITHIN 360 N
SEMICIRCLE AND 360 S QUADRANT WINDS 20 TO 30 KT. SEAS 8 TO 14
FT.
.48 HOUR FORECAST LOW ABSORBED BY LOW 51N175E IN STORM WARNING
ABOVE.

...GALE WARNING...
.24 HOUR FORECAST NEW LOW 49N158W 1008 MB, WITHIN 240 NM SE OF A
LINE FROM 51N144W TO 47N158W TO 41N167W WINDS 20 TO 30 KT. SEAS 8
TO 12 FT.
.30 HOUR FORECAST LOW 51N150W 1006 MB. WITHIN 300 NM S AND SE OF
A LINE FROM 51N140W TO LOW TO 43N160W WINDS 25 TO 35 KT. SEAS 8
TO 12 FT.
.48 HOUR FORECAST LOW 54N131W 1002 MB. WITHIN 480 SW QUADRANT
WINDS 20 TO 30 KT. SEAS TO 11 FT.

.SYNOPSIS AND FORECAST.

.LOW N OF AREA NEAR 55N166E 993 MB DRIFTING N. N OF 53N BETWEEN
178W AND 173E WINDS TO 25 KT. SEAS TO 9 FT.
.24 HOUR FORECAST LOW WELL N OF AREA. ASSOCIATED CONDITIONS
DIMINISHED.

.FROM 47N TO 58N BETWEEN 128W AND 143W WINDS LESS THAN 25 KT.
SEAS 8 TO 11 FT.
.24 HOUR FORECAST CONDITIONS DESCRIBED BY LOW 57N142W IN GALE
WARNING ABOVE.

.DENSE FOG. VSBY OCCASIONALLY LESS THAN 1 NM FROM 46N TO 54N
BETWEEN 147W AND 158W...AND WITHIN 60 NM SE OF A LINE FROM
47N162W TO 46N166W.
.24 HOUR FORECAST DENSE FOG WITHIN 120 NM SE OF A LINE FROM
50N148W TO 47N160W.
.48 HOUR FORECAST DENSE FOG FROM 44N TO 48N BETWEEN 151W AND
162W.

.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 0600 UTC FRI SEP 20.
24 HOUR FORECAST VALID 0600 UTC SAT SEP 21.
48 HOUR FORECAST VALID 0600 UTC SUN SEP 22.

.WARNINGS.

.NONE.

.SYNOPSIS AND FORECAST.

.WITHIN 11N116W TO 12N117W TO 12N118W TO 11N120W TO 09N119W TO
09N117W TO 11N116W SW WINDS 20 TO 25 KT. SEAS 8 FT. WITHIN
12N111W TO 12N113W TO 11N113W TO 10N113W TO 10N111W TO 11N110W
TO 12N111W SW WINDS 20 TO 30 KT. SEAS 8 TO 9 FT.
.24 HOUR FORECAST WITHIN 15N103W TO 16N105W TO 13N109W TO
12N109W TO 11N106W TO 13N103W TO 15N103W SW TO W WINDS 20 TO 30
KT. SEAS 8 TO 10 FT.
.48 HOUR FORECAST WITHIN 13N109W TO 15N113W TO 16N116W TO
10N116W TO 10N111W TO 13N109W SW WINDS 20 TO 30 KT. SEAS 8 TO 10
FT. WITHIN 16N104W TO 15N106W TO 13N106W TO 14N105W TO 16N104W W
WINDS 20 TO 25 KT. SEAS 8 FT.

.09 HOUR FORECAST WITHIN 13N104W TO 13N105W TO 12N106W TO
11N106W TO 11N105W TO 11N104W TO 13N104W SW WINDS 20 TO 30 KT.
SEAS 8 TO 9 FT.
.24 HOUR FORECAST WITHIN 14N101W TO 14N103W TO 13N103W TO
12N100W TO 12N98W TO 13N98W TO 14N101W W WINDS 20 TO 25 KT. SEAS
TO 8 FT.
.36 HOUR FORECAST CONDITIONS IMPROVE. WINDS 20 KT OR LESS. SEAS
LESS THAN 8 FT.

.36 HOUR FORECAST WITHIN 11N138W TO 09N140W TO 07N140W TO
07N137W TO 09N136W TO 11N138W S TO SW WINDS 20 TO 25 KT. SEAS
LESS THAN 8 FT.
.48 HOUR FORECAST WITHIN 13N138W TO 13N140W TO 09N140W TO
08N139W TO 10N138W TO 13N138W S WINDS 20 TO 25 KT. SEAS 8 FT.

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

CONVECTION VALID AT 0930 UTC FRI SEP 20...

.TROPICAL WAVE WITH AXIS NEAR 87W...NUMEROUS MODERATE TO STRONG
AND
TSTMS ARE AFFECTING THE OFFSHORE WATERS FROM COSTA RICA TO EL
SALVADOR.

.TROPICAL WAVE WITH AXIS NEAR 103W...SCATTERED MODERATE FROM 08N
TO 15N BETWEEN 96W AND 107W.

.TROPICAL WAVE WITH AXIS NEAR 121W...SCATTERED MODERATE FROM 07N
TO 15N BETWEEN 119W AND 127W.

.INTERTROPICAL CONVERGENCE ZONE/MONSOON TROUGH...
THE MONSOON TROUGH AXIS EXTENDS FROM NORTHWEST COLOMBIA TO
12N87W TO 13N109W TO 09N125W. SCATTERED MODERATE TO ISOLATED
STRONG FROM 08N TO 16N BETWEEN 106W AND 118W. SCATTERED MODERATE
FROM 06N TO 14N WEST OF 131W.

.FORECASTER RAMOS. NATIONAL HURRICANE CENTER.

NATIONAL WEATHER SERVICE HONOLULU HI

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

SYNOPSIS VALID 0600 UTC SEP 20 2024.
24 HOUR FORECAST VALID 0600 UTC SEP 21 2024.
48 HOUR FORECAST VALID 0600 UTC SEP 22 2024.

.WARNINGS.

.NONE.

.SYNOPSIS AND FORECAST.

.48 HOUR FORECAST NEW LOW NEAR 10N140W 1011 MB.

.TROUGH FROM 05N160E TO 10N163E TO 14N167E MOVING WNW 15 KT.
WINDS E TO NE 20 TO 25 KT WITHIN 240 NM W OF TROUGH AXIS. ISOLATED
MODERATE TSTMS OVER FORECAST WATERS NW OF TROUGH AXIS.
.24 HOUR FORECAST TROUGH MERGED WITH TROUGH DESCRIBED IMMEDIATELY
BELOW. ASSOCIATED WINDS INCLUDED WITH TROUGH DESCRIBED
IMMEDIATELY BELOW.

.TROUGH FROM 09N172E TO 12N179W TO 18N173W MOVING NW 15 KT. WINDS
S TO SE 20 TO 25 KT AND SEAS 8 TO 9 FT WITHIN 180 NM SE OF TROUGH
AXIS. ISOLATED MODERATE TO STRONG TSTMS WITHIN 360 NM S AND SE OF
TROUGH AXIS...AND ALSO WITHIN 120 NM N AND NW OF TROUGH AXIS.
.24 HOUR FORECAST TROUGH FROM 11N160E TO 12N170E TO 17N179E TO
21N175W. WINDS S TO SE 20 TO 25 KT AND SEAS 8 TO 9 FT WITHIN 180
NM SE OF TROUGH AXIS.
.48 HOUR FORECAST TROUGH FROM 12N170E TO 19N179W. REMAINDER OF
TROUGH DISSIPATED. ASSOCIATED WINDS DIMINISHED TO 20 KT OR LESS.
ASSOCIATED SEAS SUBSIDED TO 8 FT OR LOWER.

.TROUGH FROM 21N175W TO 26N173W TO 30N173W MOVING W 15 KT.
ISOLATED MODERATE TSTMS WITHIN 90 NM E AND SE OF TROUGH AXIS.
.24 HOUR FORECAST TROUGH FROM 26N179W TO 30N178W.
.48 HOUR FORECAST TROUGH FROM 26N176E TO 30N177E.

.TROUGH FROM 28N140W TO 30N144W MOVING WSW 15 KT.
.24 HOUR FORECAST TROUGH FROM 26N146W TO 30N170W.
.48 HOUR FORECAST TROUGH DISSIPATED.

.24 HOUR FORECAST NEW TROUGH FROM 06N162W TO 11N155W.
.48 HOUR FORECAST TROUGH FROM 06N166W TO 11N158W.

.WINDS 20 KT OR LESS REMAINDER FORECAST AREA.

.SEAS 8 FT OR LOWER REMAINDER FORECAST AREA.

.ITCZ FROM 10N140W TO 10N149W TO 07N157W. ISOLATED MODERATE TO
STRONG TSTMS WITHIN 360 NM EITHER SIDE OF CONVERGENCE LINE.

$$

.FORECASTER BEDAL. HONOLULU HI.