128
FZPN02 KWBC 190525
HSFEPI

HIGH SEAS FORECAST FOR METAREA XII
NWS OCEAN PREDICTION CENTER WASHINGTON DC
0545 UTC THU SEP 19 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SUPERSEDED BY NEXT ISSUANCE IN 6 HOURS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 19.
24 HOUR FORECAST VALID 0000 UTC SEP 20.
48 HOUR FORECAST VALID 0000 UTC SEP 21.

.WARNINGS.

...GALE WARNING...
.LOW 60N146W 997 MB MOVING SE 10 KT. WITHIN 480 NM SW QUADRANT
WINDS 25 TO 35 KT. SEAS 8 TO 17 FT.
.24 HOUR FORECAST LOW 59N139W 1011 MB. WITHIN 420 NM S QUADRANT
WINDS TO 25 KT. SEAS TO 10 FT.
.30 HOUR FORECAST LOW DISSIPATED. ASSOCIATED CONDITIONS
DIMINISHED.

...GALE WARNING...
.LOW 46N177E 1000 MB MOVING NE 35 KT. WITHIN 540 NM S AND SE
QUADRANTS WINDS 25 TO 35 KT. SEAS 8 TO 13 FT.
.24 HOUR FORECAST LOW 51N164W 1002 MB. WITHIN 480 NM S AND SE
QUADRANTS WINDS 25 TO 35 KT. SEAS 8 TO 15 FT.
.48 HOUR FORECAST COMPLEX LOW WITH MAIN LOW 55N142W 1001 MB.
WITHIN 420 NM S AND 360 NM E QUADRANTS WINDS 25 TO 35 KT. SEAS 8
TO 12 FT.

...GALE WARNING...
.LOW W OF AREA 53N163E 993 MB MOVING NE 10 KT. WITHIN 360 NM E
QUADRANT WINDS 25 TO 35 KT. SEAS TO 9 FT.
.24 HOUR FORECAST LOW W OF AREA 55N165E 993 MB. WITHIN 480 NM E
QUADRANT WINDS 20 TO 30 KT. SEAS TO 9 FT.
.48 HOUR FORECAST LOW AND CONDITIONS W OF AREA.

...GALE WARNING...
.FROM 36N TO 45N BETWEEN 126W AND 133W AREA OF N WINDS TO 25 KT.
SEAS TO 9 FT.
.24 HOUR FORECAST FROM 36N TO 50N BETWEEN 124W AND 130W AREA OF
N WINDS 20 TO 30 KT. SEAS TO 11 FT.
.48 HOUR FORECAST FROM 37N TO 43N BETWEEN 124W AND 127W AREA OF
WINDS 25 TO 35 KT. SEAS 8 TO 12 FT.

...GALE WARNING...
.24 HOUR FORECAST LOW 49N171E 990 MB. FROM 43N TO 50N BETWEEN
176E AND 162E WINDS 25 TO 35 KT. SEAS 8 TO 15 FT.
.48 HOUR FORECAST LOW 52N177W 993 MB. WITHIN 300 NM SW AND 300
NM N AND NE QUADRANTS WINDS 25 TO 35 KT. SEAS 8 TO 16
FT...HIGHEST SW.

.SYNOPSIS AND FORECAST.

.DENSE FOG. VSBY OCCASIONALLY LESS THAN 1 NM FROM 42N TO 49N
BETWEEN 175E AND 155W.
.24 HOUR FORECAST DENSE FOG FROM 45N TO 53N BETWEEN 173W AND
146W.
.48 HOUR FORECAST DENSE FOG FROM 44N TO 53N BETWEEN 164W AND
140W.

.FORECASTER ROWLAND. 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 THU SEP 19.
24 HOUR FORECAST VALID 0000 UTC FRI SEP 20.
48 HOUR FORECAST VALID 0000 UTC SAT SEP 21.

.WARNINGS.

.NONE.

.SYNOPSIS AND FORECAST.

.09 HOUR FORECAST WITHIN 08N96W TO 08N97W TO 07N98W TO 07N98W TO
06N96W TO 07N95W TO 08N96W WINDS 20 KT OR LESS. SEAS 8 FT IN
MIXED S SWELL AND SW WIND WAVES.
.21 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 0230 UTC THU SEP 19...

.INTERTROPICAL CONVERGENCE ZONE/MONSOON TROUGH...
MONSOON TROUGH EXTENDS FROM 11.5N72W TO 09.5N82W TO 11N88W TO
11N116W TO 09N128W TO 10N140W. SCATTERED MODERATE TO STRONG
CONVECTION FROM 05N TO 10N E OF 90W...WITHIN 90 NM OF THE COASTS
FROM COSTA RICA ALONG 85W TO CABO CORRIENTES ALONG 107W...FROM
07.5N TO 15.5N BETWEEN 97W AND 120W...AND FROM 07.5N TO 13.5N
BETWEEN 120W AND 140W. SCATTERED TO LOCALLY NUMEROUS MODERATE TO
STRONG CONVECTION FROM 07.5N TO 11N BETWEEN 90W AND 97W.

$$
.FORECASTER STRIPLING. NATIONAL HURRICANE CENTER.

NATIONAL WEATHER SERVICE HONOLULU HI

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

SYNOPSIS VALID 0000 UTC SEP 19 2024.
24 HOUR FORECAST VALID 0000 UTC SEP 20 2024.
48 HOUR FORECAST VALID 0000 UTC SEP 21 2024.

.WARNINGS.

.NONE.

.SYNOPSIS AND FORECAST.

.TROUGH 23N172W 17N174W MOVING W AT 10 KT. ISOLATED MODERATE
TSTMS WITHIN 240 NM E OF TROUGH.
.24 HOUR FORECAST TROUGH DISSIPATED.

.TROUGH 16N170E 11N171E MOVING W AT 10 KT. WINDS 20 TO 25 KT
WITHIN 240 NM E OF TROUGH.
.24 HOUR FORECAST TROUGH 11N166E 05N161E. WINDS EASED TO 20 KT
OR LESS.
.48 HOUR FORECAST TROUGH MOVED W OF AREA.

.24 HOUR FORECAST NEW TROUGH 30N174W 25N175W.
.48 HOUR FORECAST TROUGH 30N176W 26N175W.

.24 HOUR FORECAST NEW TROUGH 13N176W 10N177E. SEAS 8 TO 9 FT
FROM 16N TO 05N BETWEEN 178W AND 169W.
.48 HOUR FORECAST TROUGH STRENGTHENED TO LOW 13N179E. WINDS 20
TO 25 KT WITHIN 120 NM OF LOW N SEMICIRCLE. SEAS 8 TO 12 FT
WITHIN 150 NM OF LOW.

.WINDS 20 KT OR LESS REMAINDER FORECAST AREA.

.SEAS 8 TO 9 FT FROM 16N TO 05N BETWEEN 172W AND 160W.
.24 HOUR FORECAST SEAS SUBSIDED TO 8 FT OR LESS.

.SEAS 8 FT OR LOWER REMAINDER FORECAST AREA.

.ITCZ 10N140W 09N147W 12N159W 07N175W 07N175E. SCATTERED
MODERATE TSTMS WITHIN 180 NM OF ITCZ.

.ISOLATED MODERATE TSTMS N OF 24N BETWEEN 171W AND 158W.

$$

.FORECASTER TROTTER. HONOLULU HI.