632
FZPN02 KWBC 180525
HSFEPI

HIGH SEAS FORECAST FOR METAREA XII
NWS OCEAN PREDICTION CENTER WASHINGTON DC
0545 UTC WED SEP 18 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SUPERSEDED BY NEXT ISSUANCE IN 6 HOURS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 0000 UTC SEP 18.
24 HOUR FORECAST VALID 0000 UTC SEP 19.
48 HOUR FORECAST VALID 0000 UTC SEP 20.

.WARNINGS.

...STORM WARNING...
.LOW 59N165W 970 MB MOVING E 25 KT. WITHIN 180 NM S SEMICIRCLE
WINDS 40 TO 55 KT. SEAS 16 TO 29 FT. ELSEWHERE N OF 51N BETWEEN
148W AND 176W WINDS 25 TO 40 KT. SEAS 9 TO 19 FT...HIGHEST S OF
CENTER.
.24 HOUR FORECAST LOW 59N146W 999 MB. WITHIN 420 NM SE AND 480
NM SW QUADRANTS WINDS 25 TO 40 KT. SEAS 9 TO 19 FT...HIGHEST
NEAR 56N148W.
.48 HOUR FORECAST LOW 58N138W 1011 MB. FROM 50N TO 59N E OF 145W
WINDS LESS THAN 25 KT. SEAS 8 TO 11 FT.

...GALE WARNING...
.LOW 41N160E 1004 MB MOVING NE 30 KT. WITHIN 300 NM S AND 480 NM
E QUADRANTS WINDS 25 TO 35 KT. SEAS TO 12 FT.
.24 HOUR FORECAST LOW 45N176E 1001 MB. WITHIN 480 NM S QUADRANT
AND FROM 40N TO 48N BETWEEN 170W AND 178E WINDS 25 TO 35 KT.
SEAS 8 TO 14 FT.
.48 HOUR FORECAST LOW 51N160W 1004 MB. WITHIN 360 NM N
SEMICIRCLE AND WITHIN 360 NM S OF A FRONT FROM 51N148W TO
51N157W TO 41N174W WINDS 25 TO 35 KT. SEAS 8 TO 14 FT.

...GALE WARNING...
.48 HOUR FORECAST LOW 51N170E 990 MB. WITHIN 420 NM E...AND 600
NM S AND SW QUADRANTS WINDS 25 TO 35 KT. SEAS 8 TO 14 FT.

.SYNOPSIS AND FORECAST.

.COMPLEX LOW WITH MEAN CENTER 49N127W 1010 MB MOVING SE 15 KT.
FROM 42N TO 55N BETWEEN 129W AND 135W AREA OF N TO NW WINDS TO
25 KT. SEAS TO 11 FT.
.24 HOUR FORECAST INLAND LOW 39N123W 1010 MB. FROM 38N TO 50N
BETWEEN 124W AND 132W AREA OF N TO NW WINDS TO 25 KT. SEAS TO 10
FT.
.48 HOUR FORECAST LOW DISSIPATED. FROM 37N TO 50N BETWEEN 124W
AND 130W AREA OF N TO NW WINDS TO 25 KT. SEAS TO 11 FT.

.24 HOUR FORECAST NEW LOW NW OF AREA NEAR 53N162E 994 MB. N OF
50N W OF 174E WINDS 20 TO 30 KT. SEAS TO 9 FT.
.48 HOUR FORECAST LOW NW OF AREA NEAR 55N166E 994 MB. N OF 53N
BETWEEN 178E AND 174E WINDS TO 25 KT. SEAS TO 9 FT.

.DENSE FOG. VSBY OCCASIONALLY LESS THAN 1 NM FROM 44N TO 52N
BETWEEN 150W AND 160W.
.24 HOUR FORECAST DENSE FOG FROM 43N TO 49N BETWEEN 155W AND
175E.
.48 HOUR FORECAST DENSE FOG WITHIN 360 NM S OF A LINE FROM
53N150W TO 48N174W.

.FORECASTER CLARK. OCEAN PREDICTION CENTER.

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 0000 UTC WED SEP 18.
24 HOUR FORECAST VALID 0000 UTC THU SEP 19.
48 HOUR FORECAST VALID 0000 UTC FRI SEP 20.

.WARNINGS.

.NONE.

.SYNOPSIS AND FORECAST.

.ENTIRE AREA WINDS 20 KT OR LESS. SEAS LESS THAN 8 FT.

CONVECTION VALID AT 0200 UTC WED SEP 18...

.INTERTROPICAL CONVERGENCE ZONE/MONSOON TROUGH...
MONSOON TROUGH EXTENDS FROM FROM 11N73.5W TO 11N83W TO 09N96W TO
11.5N104W TO 08.5N123W...THEN ITCZ TO 10.5N131W TO BEYOND
08N140W. SCATTERED MODERATE TO STRONG CONVECTION FROM 06.5N-12N
BETWEEN 81W AND 104W...FROM 08N-11N BETWEEN 107-128W...AND FROM
08N-13N W OF 128W. SCATTERED TO LOCALLY NUMEROUS MODERATE TO
STRONG CONVECTION WITHIN 75 NM OF THE COASTS FROM CENTRAL
NICARAGUA ALONG 86W TO JALISCO, MEXICO ALONG 105W.

$$
.FORECASTER STRIPLING. NATIONAL HURRICANE CENTER.

NATIONAL WEATHER SERVICE HONOLULU HI

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

SYNOPSIS VALID 0000 UTC SEP 18 2024.
24 HOUR FORECAST VALID 0000 UTC SEP 19 2024.
48 HOUR FORECAST VALID 0000 UTC SEP 20 2024.

.WARNINGS.

.NONE.

.SYNOPSIS AND FORECAST.

.TROUGH FROM 21N160E TO 27N163E MOVING NW 10 KT. SCATTERED
MODERATE TSTMS OVER FORECAST FROM 27N TO 17N W OF 165E.
.12 HOUR FORECAST TROUGH DISSIPATED W OF FORECAST AREA.

.48 HOUR FORECAST NEW TROUGH FROM 07N170E TO 10N179W TO 14N170W.
ASSOCIATED WINDS INCLUDED BELOW.

.WINDS E TO NE 20 TO 25 KT FROM 18N TO 10N BETWEEN 179E AND 140W.
.24 HOUR FORECAST WINDS E TO NE 20 TO 25 KT FROM 18N TO 10N
BETWEEN 170E AND 160W.
.48 HOUR FORECAST WINDS E TO NE 20 TO 25 KT FROM 16N TO 10N
BETWEEN 163E AND 170W. ALSO WINDS E TO SE 20 TO 25 KT FROM 08N TO
00N BETWEEN 175W AND 165W.

.WINDS 20 KT OR LESS REMAINDER FORECAST AREA.

.SEAS 8 TO 10 FT FROM 18N TO 00N BETWEEN 165W AND 150W.
.24 HOUR FORECAST SEAS 8 TO 9 FT FROM 16N TO 00N BETWEEN 173W AND
163W.
.48 HOUR FORECAST SEAS SUBSIDED TO 8 FT OR LOWER.

.SEAS 8 FT OR LOWER REMAINDER FORECAST AREA.

.ITCZ FROM 08N140W TO 08N147W TO 10N156W TO 07N167W TO 08N175W TO
06N175E TO 09N166E. SCATTERED MODERATE TO STRONG TSTMS
WITHIN 240 NM N OF ITCZ. ISOLATED MODERATE TO STRONG TSTMS WITHIN
120 NM S OF ITCZ.

.OTHERWISE AND ELSEWHERE ISOLATED MODERATE TSTMS FROM 30N TO 25N
BETWEEN 175W AND 165W.

$$

.FORECASTER BEDAL HONOLULU HI.