180
FZPN02 KWBC 230525
HSFEPI

HIGH SEAS FORECAST FOR METAREA XII
NWS OCEAN PREDICTION CENTER WASHINGTON DC
0545 UTC MON SEP 23 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SUPERSEDED BY NEXT ISSUANCE IN 6 HOURS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 23.
24 HOUR FORECAST VALID 0000 UTC SEP 24.
48 HOUR FORECAST VALID 0000 UTC SEP 25.

.WARNINGS.

...STORM WARNING...
.COMPLEX LOW WITH MAIN CENTER 55N159W 971 MB MOVING NE 15 KT.
WITHIN 420 NM S QUADRANT AND WITHIN 90 NM NW AND N OF FRONT FROM
LOW CENTER TO 58N151W WINDS 35 TO 50 KT. SEAS 12 TO 24 FT.
ELSEWHERE N OF A LINE FROM 47N178E TO 37N167W TO 46N131W WINDS
25 TO 40 KT. SEAS 8 TO 22 FT...HIGHEST NEAR 47N164W. ALSO FROM
33N
TO 51N BETWEEN 169W AND 167E WINDS LESS THAN 25 KT. SEAS 8 TO 16
FT...HIGHEST NEAR 40N173W.
.24 HOUR FORECAST COMBINED LOW 58N149W 978 MB. N OF 39N BETWEEN
131W AND 173W WINDS 25 TO 40 KT. SEAS 8 TO 22 FT...HIGHEST NEAR
54N145W. ELSEWHERE BETWEEN 39N AND A LINE FROM 30N170W TO
38N150W WINDS LESS THAN 25 KT. SEAS TO 12 FT.
.48 HOUR FORECAST LOW 59N149W 989 MB.WITHIN 360 NM NE...1020 NM
S...AND 660 NM W QUADRANTS WINDS 25 TO 35 KT. SEAS 8 TO 15 FT.
ELSEWHERE WITHIN 90 NM EITHER SIDE OF A FRONT TO EXTEND FROM
52N129W TO 47N130W TO 40N138W WINDS TO 25 KT. SEAS TO 12 FT.
ALSO WITHIN 1380 NM S QUADRANT WINDS LESS THAN 25 KT. SEAS TO 11
FT.

...GALE WARNING...
.COMPLEX LOW W OF AREA WITH MAIN CENTER 41N156E 1003 MB MOVING
NE 25 KT. FROM 37N TO 44N W OF 172E WINDS 25 TO 35 KT. SEAS TO 11
FT.
.24 HOUR FORECAST COMPLEX LOW WITH MAIN CENTER 44N168E 1005 MB.
BETWEEN 49N AND A LINE FROM 34N160E TO 43N177W WINDS 25 TO 35
KT. SEAS 8 TO 15 FT.
.48 HOUR FORECAST LOW 47N175W 1002 MB. FROM 38N TO 50N BETWEEN
159W AND 171E WINDS 25 TO 35 KT. SEAS 8 TO 14 FT.

.SYNOPSIS AND FORECAST.

.FROM 31N TO 43N BETWEEN 123W AND 131W AREA OF N WINDS 20 TO 30
KT. SEAS TO 10 FT.
.24 HOUR FORECAST FROM 33N TO 44N BETWEEN 124W AND 131W AREA OF
N WINDS 20 TO 30 KT. SEAS TO 10 FT.
.48 HOUR FORECAST EXCEPT WHERE DESCRIBED IN WARNINGS SECTION
ABOVE...FROM 31N TO 50N E OF 132W WINDS LESS THAN 25 KT. SEAS TO
10 FT IN MIXED SWELL.

.48 HOUR FORECAST WITHIN 240 NM NW AND N OF A FRONT TO EXTEND
FROM 38N172E TO 34N160E WINDS TO 25 KT. SEAS TO 11 FT.

.DENSE FOG. 24 HOUR FORECAST VSBY OCCASIONALLY LESS THAN 1 NM
FROM 42N TO 46N BETWEEN 179E AND 165E.
.48 HOUR FORECAST DENSE FOG FROM 44N TO 47N BETWEEN 165W AND
180W.

.FORECASTER JOSEPH. OCEAN PREDICTION CENTER.

E PACIFIC FROM THE EQUATOR TO 30N E OF 140W AND 03.4S TO THE
EQUATOR E OF 120W

SYNOPSIS VALID 0000 UTC MON SEP 23.
24 HOUR FORECAST VALID 0000 UTC TUE SEP 24.
48 HOUR FORECAST VALID 0000 UTC WED SEP 25.

.WARNINGS.

...TROPICAL STORM WARNING...
.TROPICAL DEPRESSION TEN-E NEAR 13.9N 98.6W 1003 MB AT 0300 UTC
SEP 23 MOVING N OR 360 DEG AT 0 KT. MAXIMUM SUSTAINED WINDS 30
KT GUSTS 40 KT. WITHIN 180 NM NE SEMICIRCLE AND 240 NM SW
SEMICIRCLE OF CENTER WINDS 20 TO 30 KT. SEAS 8 TO 10 FT. FROM
08N TO 14N BETWEEN 98W AND 105W SW TO W WINDS 20 TO 25 KT. SEAS
8 TO 9 FT. NUMEROUS TSTMS FROM 10N TO 17N BETWEEN 96W AND 109W.
.12 HOUR FORECAST TROPICAL STORM TEN-E NEAR 14.3N 98.3W. MAXIMUM
SUSTAINED WINDS 35 KT GUSTS 45 KT.
.24 HOUR FORECAST TROPICAL STORM TEN-E NEAR 14.6N 97.9W. MAXIMUM
SUSTAINED WINDS 45 KT GUSTS 55 KT. TROPICAL STORM FORCE WINDS
WITHIN 40 NM E SEMICIRCLE...30 NM SW QUADRANT AND 20 NM NW
QUADRANT. SEAS 12 FT OR GREATER WITHIN 60 NM E SEMICIRCLE AND 30
NM W SEMICIRCLE WITH SEAS TO 17 FT. ELSEWHERE WITHIN 120 NM NE
SEMICIRCLE AND 240 NM SW SEMICIRCLE OF CENTER WINDS 20 TO 33 FT.
SEAS 8 TO 12 FT. FROM 08N TO 11N BETWEEN 95W AND 102W AND FROM
09N TO 14N BETWEEN 102W AND 115W SW TO W WINDS 20 TO 25 KT. SEAS
8 TO 11 FT. FROM 05N TO 08N BETWEEN 93W AND 102W WINDS 20 KT OR
LESS. SEAS 8 TO 9 FT IN SE TO S SWELL.
.48 HOUR FORECAST TROPICAL STORM TEN-E NEAR 15.2N 96.3W. MAXIMUM
SUSTAINED WINDS 55 KT GUSTS 65 KT. TROPICAL STORM FORCE WINDS
WITHIN 50 NM OF CENTER EXCEPT 30 NM NW QUADRANT. SEAS 12 FT OR
GREATER WITHIN 60 NM OF CENTER...EXCEPT 90 NM NE QUADRANT WITH
SEAS TO 20 FT. ELSEWHERE WITHIN 60 NM N SEMICIRCLE...120 NM SE
QUADRANT AND 240 NM SW QUADRANT OF CENTER WINDS 20 TO 33 FT.
SEAS 9 TO 14 FT. FROM 08N TO 13N BETWEEN 93W AND 96W AND FROM
08N TO 11N BETWEEN 96W AND 110W SW TO W WINDS 25 TO 30 KT. SEAS
9 TO 12 FT. FROM 08N TO 13N BETWEEN 110W AND 116W SW TO W WINDS
20 TO 25 KT. SEAS 8 TO 10 FT. FROM 06N TO 08N BETWEEN 89W AND
101W WINDS 20 KT OR LESS. SEAS 8 TO 9 FT IN W TO NW SWELL MIXED
WITH SE SWELL.

FORECAST WINDS IN AND NEAR ACTIVE TROPICAL CYCLONES SHOULD BE
USED WITH CAUTION DUE TO UNCERTAINTY IN FORECAST TRACK...SIZE
AND INTENSITY.

.SYNOPSIS AND FORECAST.

.FROM 11N TO 14N W OF 139W WINDS 20 KT OR LESS. SEAS TO 8 FT IN
DECAYING S SWELL.
.09 HOUR FORECAST WINDS 20 KT OR LESS. SEAS LESS THAN 8 FT.

.12 HOUR FORECAST N OF 29N BETWEEN 127W AND 132W WINDS 20 KT OR
LESS. SEAS 8 TO 9 FT IN N SWELL.
.24 HOUR FORECAST LITTLE CHANGE.
.30 HOUR FORECAST 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 0315 UTC MON SEP 23...

.TROPICAL DEPRESSION TEN-E...NUMEROUS STRONG WITHIN 60
NM OF CENTER. NUMEROUS MODERATE ISOLATED STRONG FROM 11N TO 13N
BETWEEN 96W AND 101W.

.NUMEROUS MODERATE ISOLATED STRONG FROM 11N TO 15N BETWEEN
96W AND 104W.

.SCATTERED MODERATE ISOLATED STRONG WITHIN 60 NM OF 20N105W.

.SCATTERED MODERATE WITHIN 60 NM OF LINE FROM 13N104W TO 13N108W
AND WITHIN 60 NM OF 16N107W.

.INTERTROPICAL CONVERGENCE ZONE/MONSOON TROUGH...
MONSOON TROUGH AXIS EXTENDS FROM 11N86W TO TROPICAL DEPRESSION
TEN-E TO 16N107W TO LOW PRES NEAR 16N110W 1007 MB TO 11N124W TO
12N134W TO 12N140W. ASIDE FROM CONVECTION DESCRIBED ABOVE...
NUMEROUS MODERATE TO STRONG WITHIN 120 NM S OF TROUGH W OF 138W.

.FORECASTER AGUIRRE. NATIONAL HURRICANE CENTER.

NATIONAL WEATHER SERVICE HONOLULU HI

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

SYNOPSIS VALID 0000 UTC SEP 23 2024.
24 HOUR FORECAST VALID 0000 UTC SEP 24 2024.
48 HOUR FORECAST VALID 0000 UTC SEP 25 2024.

.WARNINGS.



.NONE.

.SYNOPSIS AND FORECAST.

.LOW NEAR 11N143W 1008 MB MOVING W SLOWLY. SCATTERED MODERATE
TSTMS WITHIN 300 NM OF LOW.
.24 HOUR FORECAST LOW NEAR 11N144W 1008 MB. WINDS 20 TO 25 KT
FROM 12N TO 16N BETWEEN 145W AND 141W. SEAS 8 TO 10 FT FROM 12N
TO 16N BETWEEN 147W AND 141W.
.48 HOUR FORECAST LOW NEAR 12N147W 1007 MB. WINDS 20 TO 30 KT
FROM 12N TO 19N FROM 149W TO 143W. SEAS 8 TO 10 FT FROM 14N TO
18N BETWEEN 150W TO 144W.

.LOW NEAR 07N170W 1008 MB MOVING NW SLOWLY. ISOLATED MODERATE
TSTMS WITHIN 240 NM OF LOW.
.24 HOUR FORECAST LOW NEAR 11N167W. WINDS 20 TO 30 KT WITHIN
240 NM OF LOW.
.48 HOUR FORECAST LOW NEAR 10N175W. WINDS 20 TO 30 KT AND
SEAS 8 TO 10 FT WITHIN 300 NM OF LOW.

.TROUGH 26N176E 20N171E 13S171E MOVING W SLOWLY. SCATTERED TO
NUMEROUS MODERATE TSTMS WITHIN 210 NM E OF TROUGH.
.24 HOUR FORECAST TROUGH DISSIPATED.

.24 HOUR FORECAST WINDS 20 TO 25 KT FROM 18N TO 28N BETWEEN
175E AND 170W.
.48 HOUR FORECAST WINDS 20 TO 25 KT FROM 10N TO 27N BETWEEN
180W AND 170W.

.WINDS 20 KT OR LESS REMAINDER FORECAST AREA.

.24 HOUR FORECAST SEAS 8 TO 10 FT N OF 25N BETWEEN 176E AND
170W.
.48 HOUR FORECAST SEAS SUBSIDING TO LESS THAN 8 FT.

.SEAS 8 FT OR LOWER REMAINDER FORECAST AREA.

.MONSOON TROUGH 08N170W 11N161W 09N151W 12N140W.



$$

.FORECASTER PECHACEK. HONOLULU HI.