High Seas Forecast
Issued by NWS

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FZPN01 KWBC 231027
HSFEP1

HIGH SEAS FORECAST
NWS OCEAN PREDICTION CENTER WASHINGTON DC
1030 UTC SAT MAR 23 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SUPERSEDED BY NEXT ISSUANCE IN 6 HOURS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).

FROM APRIL 1 TO OCTOBER 15, DUE TO THE CLIMATOLOGY OF THE NORTH
PACIFIC, HIGH SEAS FORECASTS WILL ONCE AGAIN INCLUDE ALL
FORECASTS OF WINDS 20 TO 30 KNOTS AND SEAS 8 FEET OR GREATER.
ALSO, PLEASE SEE HTTPS://OCEAN.WEATHER.GOV/PROPOSED_HIGH_SEAS
_TROPICAL.PHP FOR A PROPOSAL, AND A REQUEST FOR COMMENTS, TO
INCREASE READABILITY OF THE HIGH SEAS FORECAST (WEB ADDRESS
LOWERCASE).

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 0600 UTC MAR 23.
24 HOUR FORECAST VALID 0600 UTC MAR 24.
48 HOUR FORECAST VALID 0600 UTC MAR 25.

.WARNINGS.

...STORM WARNING...
.COMPLEX LOW WITH MAIN CENTER 46N179E 977 MB MOVING E 25 KT AND
SECOND LOW 48N175W 975 MB MOVING NE 10 KT. WITHIN 480 NM S AND
240 NM SW QUADRANTS OF MAIN LOW WINDS 35 TO 50 KT. SEAS 16 TO 30
FT. ALSO FROM 35N TO 47N BETWEEN 162W AND 170E AND BETWEEN 150
NM AND 480 NM NW SEMICIRCLE OF SECOND LOW WINDS 25 TO 40 KT.
SEAS 12 TO 27 FT...EXCEPT N OF 46N SEAS 8 TO 16 FT. ELSEWHERE
FROM 30N TO 35N W OF 170W WINDS 20 TO 30 KT. SEAS 9 TO 22 FT
WITH MIXED SWELL.
.24 HOUR FORECAST COMBINED LOW 49N172W 987 MB. WITHIN 660 NM E
AND 540 NM S AND SW QUADRANTS WINDS 25 TO 40 KT. SEAS 11 TO 25
FT...HIGHEST NEAR 44N169W. ELSEWHERE WITHIN 1080 NM SE
SEMICIRCLE AND 960 NM W QUADRANT WINDS 20 TO 30 KT. SEAS 8 TO 17
FT.
.48 HOUR FORECAST LOW AND ASSOCIATED CONDITIONS MERGED WITH LOW
56N163W BELOW.

...GALE WARNING...
.LOW 53N162W 982 MB MOVING NW 10 KT. FRONT EXTENDS FROM 54N160W
TO 52N156W TO 45N155W TO 40N160W TO 30N178W. WITHIN 240 NM
NW...300 NM N AND 480 NM E QUADRANTS AND WITHIN 360 NM E OF
FRONT N OF 35N WINDS 25 TO 40 KT. SEAS 10 TO 18 FT...EXCEPT N OF
45N SEAS 10 FT OR LESS. ELSEWHERE WITHIN 420 NM NW
SEMICIRCLE...N OF 40N BETWEEN 149W AND 160W AND WITHIN 540 NM E
OF FRONT S OF 40N WINDS TO 25 KT. SEAS 8 TO 15 FT...EXCEPT N OF
46N SEAS 9 FT OR LESS.
.24 HOUR FORECAST LOW 56N164W 976 MB. FRONT TO EXTEND FROM
58N162W TO 57N150W TO 50N144W. WITHIN 480 NM NW AND W QUADRANTS
AND WITHIN 180 NM NE OF FRONT WINDS 25 TO 40 KT. SEAS 8 TO 15
FT. ELSEWHERE EXCEPT WHERE PREVIOUSLY NOTED N OF 49N BETWEEN
141W AND 164E WINDS 20 TO 30 KT. SEAS TO 12 FT.
.48 HOUR FORECAST LOW 56N163W 984 MB. N OF 52N BETWEEN 165W AND
180W AND FROM 46N TO 53N BETWEEN 148W AND 168W WINDS 25 TO 40
KT. SEAS 12 TO 22 FT...EXCEPT SEAS 8 TO 16 FT IN BERING SEA.
ELSEWHERE N OF 50N BETWEEN 134W AND 177E AND FROM 44N TO 50N
BETWEEN 138W AND 170W WINDS 20 TO 30 KT. SEAS 8 TO 15 FT...
HIGHEST NEAR 46N157W.

...GALE WARNING...
.LOW 44N127W 996 MB MOVING E 05 KT. FROM 35N TO 47N BETWEEN 130W
AND 138W AND WITHIN 60 NM OF THE COAST FROM 41N TO 46N WINDS 25
TO 35 KT. SEAS 9 TO 15 FT. ELSEWHERE FROM 30N TO 53N BETWEEN
121W AND 141W WINDS 20 TO 30 KT. SEAS TO 12 FT.
.24 HOUR FORECAST LOW 44N124W 998 MB. FROM 30N TO 46N E OF 135W
WINDS 20 TO 30 KT. SEAS 8 TO 14 FT.
.48 HOUR FORECAST LOW DISSIPATED INLAND. FROM 30N TO 35N E OF
122W AREA OF NW WINDS 25 TO 35 KT. SEAS 10 TO 15 FT. ELSEWHERE S
OF 40N E OF 129W WINDS 20 TO 30 KT. SEAS 8 TO 13 FT.

...GALE WARNING...
.36 HOUR FORECAST NEW LOW 48N180W 998 MB. WITHIN 420 NM W AND
540 NM S QUADRANTS WINDS 25 TO 35 KT. SEAS 9 TO 15 FT.
.48 HOUR FORECAST COMPLEX LOW WITH MAIN LOW 46N178W 998 MB.
WITHIN 240 NM SW AND 360 NM SW QUADRANTS WINDS 30 TO 45 KT. SEAS
12 TO 20 FT. ELSEWHERE WITHIN 600 NM SW SEMICIRCLE AND 480 NM E
QUADRANT WINDS 20 TO 30 KT. SEAS 8 TO 15 FT.

...HEAVY FREEZING SPRAY WARNING...
.24 HOUR FORECAST MODERATE TO HEAVY FREEZING SPRAY N OF A LINE
FROM 57N169W TO 59N180W. ELSEWHERE LIGHT TO MODERATE FREEZING
SPRAY N OF A LINE FROM 56N167W TO 58N178E.
.48 HOUR FORECAST MODERATE TO HEAVY FREEZING SPRAY N OF A LINE
FROM 56N165W TO 56N170W TO 58N177E. ELSEWHERE LIGHT TO MODERATE
FREEZING SPRAY N OF A LINE FROM 55N164W TO 57N175E.

.SYNOPSIS AND FORECAST.

.48 HOUR FORECAST NEW LOW 41N160W 1016 MB. WITHIN 540 NM SE AND
S QUADRANTS WINDS 20 TO 30 KT. SEAS 8 TO 15 FT WITH W TO NW
SWELL.

.DENSE FOG. VSBY OCCASIONALLY LESS THAN 1 NM FROM 39N TO 52N
BETWEEN 157W AND 160W...AND FROM 46N TO 52N BETWEEN 160W AND
173E.
.24 HOUR FORECAST DENSE FOG FROM 41N TO 49N BETWEEN 144W AND
151W...N OF 53N BETWEEN 146W AND 170W...AND FROM 47N TO 54N
BETWEEN 176W AND 174E.
.48 HOUR FORECAST DENSE FOG N OF A LINE FROM 59N144W TO
53N172W...AND FROM 45N TO 51N BETWEEN 169W AND 175E.

.FORECASTER BANCROFT. 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 0600 UTC SAT MAR 23.
24 HOUR FORECAST VALID 0600 UTC SUN MAR 24.
48 HOUR FORECAST VALID 0600 UTC MON MAR 25.

.WARNINGS.

...GULF OF CALIFORNIA GALE WARNING...
.18 HOUR FORECAST WITHIN 31N114W TO 31N115W TO 30N115W TO
30N114W TO 30N113W TO 31N114W SW TO W WINDS 30 TO 35 KT. SEAS
LESS THAN 8 FT. ELSEWHERE WITHIN 31N113W TO 31N114W TO 30N114W
TO 29N113W TO 29N112W TO 31N113W SW TO W WINDS 20 TO 30 KT. SEAS
LESS THAN 8 FT.
.24 HOUR FORECAST LITTLE CHANGE.
.36 HOUR FORECAST WITHIN 29N112W TO 31N113W TO 32N115W TO
30N114W TO 27N112W TO 29N112W W WINDS 20 TO 30 KT. SEAS LESS THAN
8 FT.
.48 HOUR FORECAST LITTLE CHANGE.

.SYNOPSIS AND FORECAST.

.WITHIN 12N120W TO 14N140W TO 02N140W TO 03N126W TO 08N119W TO
12N120W NE WINDS 20 TO 25 KT. SEAS 8 TO 10 FT IN N SWELL.
.18 HOUR FORECAST CONDITIONS MERGED WITH AREA DESCRIBED BELOW.

.COLD FRONT FROM 30N124W TO 23N132W. WITHIN 30N128W TO 30N140W
TO 20N140W TO 23N134W TO 30N128W WINDS 20 KT OR LESS. SEAS 8 TO
10 FT IN W TO NW SWELL.
.24 HOUR FORECAST COLD FRONT FROM 31N114W TO 20N128W. WITHIN
24N126W TO 29N114W TO 30N124W TO 23N134W TO 21N140W TO 14N140W TO
24N126W...INCLUDING SEBASTIAN VIZCAINO BAY...N TO NE WINDS 20 TO
25 KT. SEAS 8 TO 11 FT IN NW SWELL. ELSEWHERE WITHIN 21N131W TO
30N140W TO 01N140W TO 03N124W TO 07N122W TO 21N131W WINDS 20 KT
OR LESS. SEAS 8 TO 11 FT IN N SWELL.
.48 HOUR FORECAST COLD FRONT DISSIPATED. WITHIN 26N113W TO
30N114W TO 21N140W TO 02N140W TO 06N129W TO 26N113W...INCLUDING
SEBASTIAN VIZCAINO BAY...N TO NE WINDS 20 TO 30 KT. SEAS 8 TO 14
FT IN N SWELL...HIGHEST NEAR 30N119W. ELSEWHERE WITHIN 30N125W TO
30N139W TO 21N140W TO 23N128W TO 30N125W WINDS 20 KT OR LESS.
SEAS 8 TO 11 FT IN NW TO N SWELL.

.18 HOUR FORECAST WITHIN 16N94W TO 16N95W TO 15N95W TO 15N94W TO
16N94W...INCLUDING THE GULF OF TEHUANTEPEC...NW TO N WINDS 20 TO
25 KT. SEAS LESS THAN 8 FT.
.24 HOUR FORECAST WITHIN 16N93W TO 16N95W TO 15N95W TO 14N95W TO
15N93W TO 16N93W...INCLUDING THE GULF OF TEHUANTEPEC...NW TO N
WINDS 20 TO 30 KT. SEAS LESS THAN 8 FT.
.30 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 0930 UTC SAT MAR 23...

.INTERTROPICAL CONVERGENCE ZONE/MONSOON TROUGH...
SURFACE TROUGH EXTENDS FROM 08N82W TO 07N100W TO 00130W.
SCATTERED MODERATE FROM 03N TO 09N BETWEEN 101W AND 133W.

$$
.FORECASTER AREINHART. NATIONAL HURRICANE CENTER.


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