778
FZPN01 KWBC 181622
HSFEP1

HIGH SEAS FORECAST
NWS OCEAN PREDICTION CENTER WASHINGTON DC
1630 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SUPERSEDED BY NEXT ISSUANCE IN 6 HOURS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 1200 UTC SEP 18.
24 HOUR FORECAST VALID 1200 UTC SEP 19.
48 HOUR FORECAST VALID 1200 UTC SEP 20.

.WARNINGS.

...GALE WARNING...
.COMPLEX LOW WITH MEAN CENTER 60N153W 994 MB MOVING E 15 KT.
WITHIN 540 NM SE...AND 480 NM SW AND W QUADRANTS OF MEAN CENTER
WINDS 25 TO 40 KT. SEAS 8 TO 20 FT...HIGHEST SW OF MEAN CENTER.
.24 HOUR FORECAST COMBINED LOW 60N141W 1004 MB. WITHIN 540 NM
SE...AND 480 NM SW QUADRANTS WINDS 20 TO 30 KT. SEAS 8 TO 16 FT.
.48 HOUR FORECAST LOW DISSIPATED. ASSOCIATED CONDITIONS
DIMINISHED.

...GALE WARNING...
.LOW 43N169E 1001 MB MOVING NE 25 KT. WITHIN 300 NM NE...540 NM
SE...AND 480 NM S QUADRANTS WINDS 25 TO 35 KT. SEAS TO 11 FT.
.24 HOUR FORECAST COMPLEX LOW WITH MAIN CENTER 49N170W 1007 MB
AND SECOND CENTER 46N178W 1006 MB. WITHIN AN AREA BOUNDED BY A
LINE FROM 38N176E TO 52N169W TO 52N154W TO 48N155W TO 38N178W TO
38N176E WINDS 25 TO 35 KT. SEAS 8 TO 12 FT.
.48 HOUR FORECAST COMPLEX LOW WITH MEAN CENTER 53N148W 1007 MB.
WITHIN AN AREA BOUNDED BY A LINE FROM 40N175W TO 53N152W TO
52N135W TO 49N137W TO 38N172W TO 40N175W WINDS 25 TO 35 KT. SEAS
8 TO 12 FT.

...GALE WARNING...
.24 HOUR FORECAST FROM 48N159E 994 MB. WITHIN 480 NM SE QUADRANT
WINDS 20 TO 30 KT. SEAS LESS THAN 8 FT.
.48 HOUR FORECAST LOW 51N175E 990 MB. WITHIN 360 NM OF
CENTER...EXCEPT WITHIN 180 NM W QUADRANT WINDS 25 TO 35 KT. SEAS
8 TO 14 FT. ELSEWHERE WITHIN 480 NM S AND SW QUADRANT WINDS LESS
THAN 25 KT. SEAS 8 TO 13 FT.

.SYNOPSIS AND FORECAST.

.FROM 38N TO 47N BETWEEN 127W AND 134W WINDS 20 TO 30 KT. SEAS TO
11 FT.
.24 HOUR FORECAST FROM 38N TO 49N BETWEEN 124W AND 129W WINDS 20
TO 30 KT. SEAS TO 9 FT.
.48 HOUR FORECAST FROM 37N TO 49N BETWEEN 124W AND 129W WINDS 20
TO 30 KT. SEAS TO 11 FT.

.LOW 52N161E 997 MB MOVING NE 15 KT. WITHIN 300 NM E SEMICIRCLE
WINDS 20 TO 30 KT. SEAS TO 8 FT.
.24 HOUR FORECAST LOW 54N165E 997 MB. WITHIN 480 NM E QUADRANT
WINDS 20 TO 30 KT. SEAS TO 8 FT.
.48 HOUR FORECAST LOW WELL W OF AREA. ASSOCIATED CONDITIONS
DIMINISHED.

.DENSE FOG. VSBY OCCASIONALLY LESS THAN 1 NM FROM 41N TO 47N
BETWEEN 170E AND 146W.
.24 HOUR FORECAST DENSE FOG FROM 43N TO 50N BETWEEN 179E AND
153W.
.48 HOUR FORECAST DENSE FOG FROM 45N TO 54N BETWEEN 164W AND
140W.

.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 1200 UTC WED SEP 18.
24 HOUR FORECAST VALID 1200 UTC THU SEP 19.
48 HOUR FORECAST VALID 1200 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.
.09 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 1515 UTC WED SEP 18...

.SCATTERED MODERATE ISOLATED STRONG WITHIN 60 NM OF 14N97W.

.INTERTROPICAL CONVERGENCE ZONE/MONSOON TROUGH...
MONSOON TROUGH AXIS EXTENDS FROM 10N85W TO 11N100W TO 10N113W TO
09N125W TO 09N131W. ITCZ EXTENDS FROM 09N131W TO 08N140W.
SCATTERED MODERATE ISOLATED STRONG WITHIN 180 NM OF THE TROUGH
BETWEEN 97W AND 104W...WITHIN 180 NM S OF THE TROUGH BETWEEN 78W
AND 84W AND WITHIN 120 NM S OF THE TROUGH BETWEEN 123W AND 129W.
SCATTERED MODERATE WITHIN 120 NM N OF THE TROUGH BETWEEN 120W
AND 123W.


.FORECASTER AGUIRRE. NATIONAL HURRICANE CENTER.

$$