High Seas Forecast
Issued by NWS

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000
FZPN01 KWBC 250349
HSFEP1

HIGH SEAS FORECAST
NWS OCEAN PREDICTION CENTER WASHINGTON DC
0430 UTC SAT MAR 25 2017

SUPERSEDED BY NEXT ISSUANCE IN 6 HOURS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.

PAN PAN

PACIFIC N OF 30N AND S OF 67N E OF A LINE FROM BERING STRAIT
TO 50N 160E

SYNOPSIS VALID 0000 UTC MAR 25.
24 HOUR FORECAST VALID 0000 UTC MAR 26.
48 HOUR FORECAST VALID 0000 UTC MAR 27.

.WARNINGS.

...HURRICANE FORCE WIND WARNING...
.LOW 36N162E 1000 MB MOVING NE 40 KT AND INTENSIFYING. OVER
FORECAST WATERS N OF 30N WITHIN 480 NM SE...360 NM SW...AND 120
NM NW QUADRANTS WINDS 25 TO 40 KT. SEAS 9 TO 18 FT.
.12 HOUR FORECAST LOW 39N171E 987 MB. WITHIN 180 NM S AND SW
QUADRANTS WINDS 50 TO 65 KT. SEAS 13 TO 26 FT.
.24 HOUR FORECAST LOW 43N178W 978 MB. WITHIN 180 NM S SEMICIRCLE
WINDS 50 TO 65 KT. SEAS 20 TO 33 FT. ALSO WITHIN 300 NM S
SEMICIRCLE WINDS 40 TO 50 KT. SEAS 16 TO 28 FT. ELSEWHERE WITHIN
600 NM SE AND 960 NM SW QUADRANTS N OF 30N WINDS 25 TO 40 KT.
SEAS 11 TO 22 FT.
.48 HOUR FORECAST LOW 49N163W 977 MB. WITHIN 240 NM S AND SE
QUADRANTS WINDS 35 TO 50 KT. SEAS 18 TO 30 FT. ELSEWHERE WITHIN
300 NM N SEMICIRCLE...AND WITHIN 840 NM S AND SE...AND 360 NM SW
QUADRANTS WINDS 25 TO 40 KT. SEAS 12 TO 24 FT.

...STORM WARNING...
.LOW 47N176E 966 MB MOVING NW 10 KT WILL TURN SE AFTER 24 HOURS.
BETWEEN 120 NM AND 600 NM S AND SE QUADRANTS WINDS 40 TO 55 KT.
SEAS 20 TO 38 FT. ELSEWHERE WITHIN 780 NM OF LOW CENTER...EXCEPT
1500 NM E AND SE QUADRANTS N OF 30N WINDS 25 TO 40 KT. SEAS 10 TO
33 FT...HIGHEST SE QUADRANT.
.24 HOUR FORECAST LOW 49N173E 970 MB. WITHIN 780 NM E AND NE...
300 NM SE...960 NM S AND SW...AND 540 NM NW QUADRANTS OVER
FORECAST WATERS WINDS 25 TO 40 KT. SEAS 12 TO 24 FT.
.48 HOUR FORECAST COMPLEX LOW WITH MAIN CENTER NEAR 48N174E 983
MB. OVER FORECAST WATERS N OF 30N BETWEEN 240 NM AND 780 NM N AND
NE...960 NM SE...720 NM SW...AND 540 NM W QUADRANTS WINDS 25 TO
40 KT. SEAS 13 TO 26 FT.

...GALE WARNING...
.LOW 54N133W 994 MB MOVING NE 15 KT. OVER FORECAST WATERS WITHIN
120 NM SE AND NW...AND 240 NM SW QUADRANTS WINDS 25 TO 35 KT.
SEAS 8 TO 15 FT.
.24 HOUR FORECAST LOW MOVED INLAND WITH ASSOCIATED CONDITIONS
DIMINISHED.

...GALE WARNING...
.24 HOUR FORECAST NEW LOW 50N147W 982 MB WITH A FRONT FROM LOW
CENTER TO 50N141W TO 43N137W TO 34N144W. WITHIN 660 NM S AND
SE...780 NM W AND SW...AND 180 NM N AND NW QUADRANTS...AND WITHIN
240 NM E AND NE OF THE FRONT WINDS 25 TO 40 KT. SEAS 9 TO 24
FT...HIGHEST SW QUADRANT.
.48 HOUR FORECAST COMPLEX LOW WITH MEAN CENTER 54N140W 988 MB.
BETWEEN 120 NM AND 300 NM NE...BETWEEN 240 NM AND 780 NM S AND
SE...BETWEEN 120 NM AND 540 NM SW...AND BETWEEN 60 NM AND 300 NM
NW QUADRANTS WINDS 25 TO 40 KT. SEAS 10 TO 20 FT.

...HEAVY FREEZING SPRAY WARNING...
.MODERATE TO HEAVY FREEZING SPRAY N OF 58N BETWEEN 150W AND
153W. LIGHT TO MODERATE FREEZING SPRAY N OF A LINE FROM 55N160W
TO 60N178W.
.24 HOUR FORECAST MODERATE TO HEAVY FREEZING SPRAY N OF A LINE
FROM 56N169W TO 60N179W.
.48 HOUR FORECAST LITTLE CHANGE.

.SYNOPSIS AND FORECAST.

.BOGOSLOF VOLCANO AT 54N168W IS IN A STATE OF UNREST. MARINERS
TRAVELING IN THE VICINITY OF THE VOLCANO ARE URGED TO EXERCISE
CAUTION. IF MARINERS ENCOUNTER ANY VOLCANIC ASH...REPORT THE
OBSERVATION TO THE OCEAN PREDICTION CENTER BY CALLING
301-683-1520.

.N OF 30N WITHIN 120 NM SE OF A FRONT FROM 37N122W TO 30N131W SW
WINDS TO 25 KT. SEAS TO 10 FT.
.24 HOUR FORECAST FROM 30N TO 36N E OF 122W NW WINDS 20 TO 30 KT.
SEAS TO 9 FT.
.48 HOUR FORECAST FROM 30N TO 35N E OF 123W NW WINDS 20 TO 30
KT. SEAS TO 11 FT.

.DENSE FOG. VSBY OCCASIONALLY LESS THAN 1 NM FROM 31N TO 48N
BETWEEN 151W AND 162W...AND WITHIN 180 NM OF 48N169W.
.24 HOUR FORECAST DENSE FOG WITHIN 120 NM OF 50N170W.
.48 HOUR FORECAST DENSE FOG WITHIN 180 NM OF 45N150W...AND FROM
30N TO 40N BETWEEN 155W AND 168W.

.HIGH 40N139W 1022 MB MOVING E 15 KT.
.24 HOUR FORECAST HIGH 39N126W 1021 MB.
.48 HOUR FORECAST HIGH MOVED INLAND.

.HIGH 31N144W 1026 MB MOVING E 15 KT WILL TURN SE AFTER 24 HOURS.
.24 HOUR FORECAST HIGH 31N138W 1026 MB.
.48 HOUR FORECAST HIGH S OF THE FORECAST AREA.

.24 HOUR FORECAST HIGH 33N161W 1026 MB.
.48 HOUR FORECAST HIGH 33N145W 1028 MB.

.48 HOUR FORECAST HIGH 33N165E 1023 MB.

.FORECASTER MILLS. 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 SAT MAR 25.
24 HOUR FORECAST VALID 0000 UTC SUN MAR 26.
48 HOUR FORECAST VALID 0000 UTC MON MAR 27.

.WARNINGS.

.NONE.

.SYNOPSIS AND FORECAST.

.COLD FRONT FROM 30N130W TO 28N140W. WITHIN AREA BOUNDED BY
26N140W TO 30N140W TO 30N135W TO 26N140W WINDS 20 KT OR LESS.
SEAS 9 TO 11 FT IN NW SWELL. WITHIN AREA BOUNDED BY 30N117W TO
30N115W TO 28N114W TO 28N116W TO 30N117W NW WINDS 20 TO 25 KT.
SEAS LESS THAN 8 FT.
.24 HOUR FORECAST COLD FRONT FROM 31N114W TO 29N122W. WITHIN
AREA BOUNDED BY 18N132W TO 19N140W TO 30N135W TO 30N124W TO
18N132W WINDS 20 KT OR LESS. SEAS 8 TO 9 FT IN NW SWELL. WITHIN
AREA BOUNDED BY 28N114W TO 28N117W TO 30N117W TO 30N116W TO
29N115W TO 28N114W NW WINDS 20 TO 25 KT. SEAS 8 FT.
.48 HOUR FORECAST COLD FRONT E OF AREA. WITHIN AREA BOUNDED BY
30N122W TO 30N116W TO 26N113W TO 27N120W TO 30N122W NW WINDS 20
TO 25 KT. SEAS 8 TO 9 FT.

.WITHIN AREA BOUNDED BY 04N121W TO 03N140W TO 18N140W TO 20N116W
TO 04N121W WINDS 20 KT OR LESS. SEAS 8 TO 9 FT.
.24 HOUR FORECAST WITHIN AREA BOUNDED BY 06N125W TO 03N140W TO
19N140W TO 19N129W TO 06N125W WINDS 20 KT OR LESS. SEAS 8 TO 10
FT.
.48 HOUR FORECAST WITHIN AREA BOUNDED BY 07N129W TO 05N140W TO
20N140W TO 21N123W TO 07N129W WINDS 20 KT OR LESS. SEAS 8 TO 10
FT.

.GULF OF CALIFORNIA FROM 23N TO 28N NW WINDS 20 TO 25 KT. SEAS
LESS THAN 8 FT.
.12 HOUR FORECAST GULF OF CALIFORNIA WINDS 20 KT OR LESS. SEAS
LESS THAN 8 FT.

.06 HOUR FORECAST WITHIN AREA BOUNDED BY 11N86W TO 10N88W TO
11N88W TO 11N86W...INCLUDING THE GULF OF PAPAGAYO... NE TO E
WINDS 20 TO 25 KT. SEAS LESS THAN 8 FT.
.18 HOUR FORECAST WINDS 20 KT OR LESS. SEAS LESS THAN 8 FT.
.24 HOUR FORECAST LITTLE CHANGE.
.36 HOUR FORECAST WITHIN AREA BOUNDED BY 11N86W TO 10N88W TO
11N88W TO 11N86W...INCLUDING THE GULF OF PAPAGAYO... NE TO E
WINDS 20 TO 25 KT. SEAS LESS THAN 8 FT.
.42 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 0200 UTC SAT MAR 25...

.INTERTROPICAL CONVERGENCE ZONE/MONSOON TROUGH...
ITCZ FROM 05N95W TO 02N110W TO 03N118W TO 00N135W. SCATTERED
MODERATE WITHIN 120 NM N OF ITCZ BETWEEN 125W AND 130W.

$$
.FORECASTER CHRISTENSEN. NATIONAL HURRICANE CENTER.



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