181
FZPN01 KWBC 200426
HSFEP1

HIGH SEAS FORECAST
NWS OCEAN PREDICTION CENTER WASHINGTON DC
0430 UTC FRI SEP 20 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SUPERSEDED BY NEXT ISSUANCE IN 6 HOURS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 0000 UTC SEP 20.
24 HOUR FORECAST VALID 0000 UTC SEP 21.
48 HOUR FORECAST VALID 0000 UTC SEP 22.

.WARNINGS.

...STORM WARNING...
.18 HOUR FORECAST 47N157E 985 MB. FROM 40N TO 48N W OF 165E WINDS
25 TO 35 KT. SEAS TO 10 FT.
.24 HOUR FORECAST LOW 48N160E 976 MB. WITHIN 360 NM E...AND 660
NM SE QUADRANTS WINDS 25 TO 40 KT. SEAS 8 TO 15 FT.
.30 HOUR FORECAST LOW 49N164E 973 MB. WITHIN 240 NM SW QUADRANT
WINDS 40 TO 50 KT. SEAS 18 TO 25 FT...HIGHEST SE OF CENTER.
ELSEWHERE FROM 38N TO 52N W OF 177E WINDS 25 TO 35 KT. SEAS 12 TO
18 FT.
.48 HOUR FORECAST COMPLEX LOW WITH MAIN CENTER NEAR 50N177E 976
MB. WITHIN 420 S SEMICIRCLE AND FROM 47N TO 49N BETWEEN 166W AND
173W WINDS 40 TO 55 KT. SEAS 18 TO 29 FT HIGHEST SW OF CENTER.
ELSEWHERE WITHIN AN AREA BOUNDED BY A LINE FROM 47N160E TO
36N179W TO 42N158W TO 51N161W TO 53N175E TO 56N168W TO 62N175E
WINDS 25 TO 40 KT. SEAS 9 TO 18 FT...HIGHEST SW OF CENTER.

...GALE WARNING...
.LOW 52N163W 998 MB MOVING NE 30 KT. WITHIN 180 NM N SEMICIRCLE
AND AN AREA BOUNDED BY A LINE FROM 38N178E TO 50N165W TO 54N148W
TO 50N145W TO 47N150W TO 38N178E WINDS 25 TO 35 KT. SEAS 8 TO 13
FT.
.24 HOUR FORECAST LOW 56N143W 991 MB. WITHIN 360 NM NE SEMICIRCLE
WINDS 25 TO 40 KT. SEAS 9 TO 15 FT. ELSEWHERE FROM 47N TO 60N
BETWEEN 130W AND 152W WINDS 25 TO 35 KT. SEAS 8 TO 14 FT.
.48 HOUR FORECAST LOW 57N138W 1000 MB. WITHIN 180 NM OF CENTER
WINDS TO 25 KT. SEAS 8 TO 11 FT.

...GALE WARNING...
.FROM 36N TO 45N BETWEEN 124W AND 130W WINDS 20 TO 30 KT. SEAS TO
11 FT.
.24 HOUR FORECAST FROM 38N TO 43N E OF 127W WINDS 25 TO 35 KT.
SEAS 8 TO 14 FT. ELSEWHERE FROM 35N TO 44N BETWEEN 124W AND 129W
WINDS 20 TO 30 KT. SEAS 8 TO 12 FT.
.48 HOUR FORECAST FROM 38N TO 43N E OF 127W WINDS 25 TO 35 KT.
SEAS 10 TO 14 FT. ELSEWHERE FROM 34N TO 44N BETWEEN 124W AND 130W
WINDS 20 TO 30 KT. SEAS 8 TO 12 FT.

...GALE WARNING...
.LOW 48N171E 992 MB MOVING NE 20 KT. WITHIN 360 NM SE
SEMICIRCLE...AND WITHIN 300 NM NE QUADRANT WINDS 25 TO 35 KT.
SEAS 8 TO 14 FT.
.24 HOUR FORECAST LOW 52N176W 992 MB. WITHIN 300 NM S AND 360 NM
N SEMICIRCLE WINDS 25 TO 35 KT. SEAS 9 TO 17 FT.
.48 HOUR FORECAST LOW ABSORBED BY LOW 50N177E IN STORM WARNING
ABOVE.

...GALE WARNING...
..24 HOUR FORECAST NEW LOW 47N162W 1010 MB WITHIN 300 NM S OF A
LINE FROM 49N150W TO LOW CENTER TO 40N171W WINDS 20 TO 30 KT.
SEAS 8 TO 12 FT.
.48 HOUR FORECAST LOW 53N135W 1004 MB. WITHIN 300 NM S AND 600 NM
SW QUADRANTS WINDS 25 TO 35 KT. SEAS TO 11 FT.

.SYNOPSIS AND FORECAST.

.LOW N OF AREA NEAR 55N165E 992 MB DRIFTING N. N OF 53N BETWEEN
180W AND 173E WINDS TO 25 KT. SEAS TO 10 FT.
.24 HOUR FORECAST LOW WELL N OF AREA. ASSOCIATED CONDITIONS
DIMINISHED.

.DENSE FOG. VSBY OCCASIONALLY LESS THAN 1 NM FROM 45N TO 53N
BETWEEN 149W AND 165W.
.24 HOUR FORECAST DENSE FOG FROM 45N TO 49N BETWEEN 151W AND
163W.
.48 HOUR FORECAST DENSE FOG WITHIN 60 NM S OF A LINE FROM 47N164W
TO 44N160W TO 45N150W

.FORECASTER HYDE. 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 0000 UTC FRI SEP 20.
24 HOUR FORECAST VALID 0000 UTC SAT SEP 21.
48 HOUR FORECAST VALID 0000 UTC SUN SEP 22.

.WARNINGS.

.NONE.

.SYNOPSIS AND FORECAST.

.WITHIN 12N107W TO 11N109W TO 10N109W TO 09N107W TO 10N106W TO
12N107W WINDS 20 KT OR LESS. SEAS 8 FT IN S SWELL.
.24 HOUR FORECAST WITHIN 14N104W TO 14N105W TO 14N107W TO
12N108W TO 12N107W TO 12N104W TO 14N104W SW WINDS 20 TO 25 KT.
SEAS 8 FT.
.48 HOUR FORECAST WITHIN 16N107W TO 16N108W TO 16N109W TO
14N110W TO 14N109W TO 14N107W TO 16N107W WINDS 20 KT OR LESS.
SEAS 8 FT IN SW SWELL.

.30 HOUR FORECAST WITHIN 10N116W TO 11N116W TO 10N118W TO
09N118W TO 09N117W TO 10N116W SW WINDS 20 TO 25 KT. SEAS 8 FT.
.48 HOUR FORECAST WITHIN 12N109W TO 14N113W TO 14N116W TO
10N116W TO 10N113W TO 11N110W TO 12N109W SW TO W WINDS 20 TO 25
KT. SEAS 8 TO 10 FT.

.REMAINDER OF AREA WINDS 20 KT OR LESS. SEAS LESS THAN 8 FT.

CONVECTION VALID AT 0350 UTC FRI SEP 20...

.TROPICAL WAVE WITH AXIS NEAR 87W...NUMEROUS MODERATE TO STRONG
AFFECTING THE OFFSHORE WATERS FROM NICARAGUA TO WESTERN PANAMA.

.TROPICAL WAVE WITH AXIS NEAR 102W...SCATTERED MODERATE TO
ISOLATED STRONG FROM 07N TO 15N BETWEEN 96W AND 106W.

.TROPICAL WAVE WITH AXIS NEAR 120W...SCATTERED MODERATE FROM 08N
TO 16N BETWEEN 115W AND 127W.

.INTERTROPICAL CONVERGENCE ZONE/MONSOON TROUGH...
THE MONSOON TROUGH AXIS EXTENDS FROM NORTHWEST COLOMBIA TO
13N89W TO 13N107W TO 09N124W. SCATTERED MODERATE TO ISOLATED
STRONG FROM 08N TO 16N BETWEEN 106W AND 114W. SCATTERED MODERATE

FROM 06N TO 13N WEST OF 132W.


.FORECASTER RAMOS. NATIONAL HURRICANE CENTER.

$$