693
FZPN01 KWBC 182202
HSFEP1

HIGH SEAS FORECAST
NWS OCEAN PREDICTION CENTER WASHINGTON DC
2230 UTC WED SEP 18 2024

SUPERSEDED BY NEXT ISSUANCE IN 6 HOURS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 1800 UTC SEP 18.
24 HOUR FORECAST VALID 1800 UTC SEP 19.
48 HOUR FORECAST VALID 1800 UTC SEP 20.

.WARNINGS.

...GALE WARNING...
.LOW 60N148W 997 MB MOVING E 10 KT. WITHIN 480 NM SE...AND 540 NM
SW QUADRANTS WINDS 25 TO 40 KT. SEAS 8 TO 12 FT...HIGHEST SW OF
CENTER.
.24 HOUR FORECAST LOW 60N138W 1012 MB. WITHIN 360 NM SE...AND 480
NM SW QUADRANTS WINDS 20 TO 30 KT. SEAS 8 TO 13 FT.
.48 HOUR FORECAST LOW DISSIPATED. ASSOCIATED CONDITIONS
DIMINISHED.

...GALE WARNING...
.LOW 45N173E 998 MB MOVING NE 35 KT. WITHIN AN AREA BOUNDED BY A
LINE FROM 36N163E TO 47N173E TO 47N171W TO 42N173W TO 36N173E TO
36N163E WINDS 25 TO 35 KT. SEAS TO 12 FT.
.24 HOUR FORECAST LOW 50N168W 1002 MB. WITHIN AN AREA BOUNDED BY
A LINE FROM 40N178W TO 54N169W TO 54N150W TO 49N150W TO 40N172W
TO 40N178W WINDS 25 TO 35 KT. SEAS 8 TO 12 FT.
.48 HOUR FORECAST COMPLEX LOW WITH MAIN CENTER 53N156W 1002 MB.
WITHIN AN AREA BOUNDED BY A LINE FROM 39N176W TO 48N161W TO
56N160W TO 56N134W TO 48N148W TO 39N169W TO 39N176W WINDS 25 TO
35 KT. SEAS TO 12 FT.

...GALE WARNING...
.LOW 53N163E 994 MB MOVING NE 10 KT. WITHIN 300 NM OF CENTER
WINDS 20 TO 30 KT. SEAS TO 8 FT.
.06 HOUR FORECAST LOW 54N165E 992 MB. WITHIN 360 NM E QUADRANT
WINDS 25 TO 35 KT. SEAS TO 9 FT.
.24 HOUR FORECAST LOW 54N165E 990 MB. WITHIN 420 NM E QUADRANT
WINDS 20 TO 30 KT. SEAS TO 10 FT.
.48 HOUR FORECAST LOW WELL W OF AREA. ASSOCIATED CONDITIONS
DIMINISHED.

...GALE WARNING...
.24 HOUR FORECAST LOW 48N165E 993 MB. WITHIN 420 NM S SEMICIRCLE
WINDS 25 TO 35 KT. SEAS 8 TO 13 FT.
.48 HOUR FORECAST LOW 50N180W 993 MB. WITHIN 300 NM OF
CENTER...EXCEPT WITHIN 180 NM NW QUADRANT WINDS 25 TO 35 KT. SEAS
8 TO 15 FT.

.SYNOPSIS AND FORECAST.

.FROM 38N TO 47N BETWEEN 127W AND 134W WINDS 20 TO 30 KT. SEAS TO
10 FT.
.24 HOUR FORECAST FROM 38N TO 49N BETWEEN 124W AND 129W WINDS 20
TO 30 KT. SEAS TO 8 FT.
.48 HOUR FORECAST FROM 37N TO 49N BETWEEN 124W AND 129W WINDS 20
TO 30 KT. SEAS TO 11 FT.

.48 HOUR FORECAST FROM 38N TO 47N W OF 162E WINDS 20 TO 30 KT.
SEAS TO 8 FT.

.DENSE FOG. VSBY OCCASIONALLY LESS THAN 1 NM FROM 42N TO 47N
BETWEEN 173E AND 151W.
.24 HOUR FORECAST DENSE FOG FROM 45N TO 52N BETWEEN 173W AND
150W.
.48 HOUR FORECAST DENSE FOG FROM 45N TO 54N BETWEEN 160W AND
143W.

.FORECASTER BYRD. 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 1800 UTC WED SEP 18.
24 HOUR FORECAST VALID 1800 UTC THU SEP 19.
48 HOUR FORECAST VALID 1800 UTC FRI SEP 20.

.WARNINGS.

.NONE.

.SYNOPSIS AND FORECAST.

.03 HOUR FORECAST WITHIN 14N139W TO 14N140W TO 12N140W TO
13N139.5W TO 14N139W WINDS 20 KT OR LESS. SEAS 8 FT IN DECAYING
NE SWELL.
.03 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 1915 UTC WED SEP 18...

.TROPICAL WAVE ALONG 83W N OF 05N...SCATTERED MODERATE TO
STRONG WITHIN 60 NM EITHER SIDE OF WAVE FROM 05N TO 07N.

.SCATTERED MODERATE ISOLATED STRONG WITHIN 30 NM OF LINE
FROM 15N112W TO 15N116W.

.SCATTERED MODERATE WITHIN 60 NM OF 13N101W AMD 30 NM OF 06N79W.

.INTERTROPICAL CONVERGENCE ZONE/MONSOON TROUGH...
MONSOON TROUGH AXIS EXTENDS FROM 10N85W TO 11N98W TO 10N110W TO
11N117W TO 09N129W. ITCZ EXTENDS FROM 09N129W TO 10N140W.
SCATTERED MODERATE ISOLATED STRONG WITHIN 180 NM S OF THE TROUGH
BETWEEN 91W AND 93W AND WITHIN 60 NM N OF THE TROUGH BETWEEN 98W
AND 102W. SCATTERED MODERATE WITHIN 180 NM S OF THE TROUGH
BETWEEN 112W AND 119W...BETWEEN 101W AND 105W...WITHIN 120 NM S
OF THE TROUGH BETWEEN 124W AND 129W AND WITHIN 60 NM N OF THE
TROUGH BETWEEN 123W AND 126W.


.FORECASTER AGUIRRE. NATIONAL HURRICANE CENTER.

$$