High Seas Forecast
Issued by NWS

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000
FZPN01 KWBC 240458
HSFEP1

HIGH SEAS FORECAST
NWS OCEAN PREDICTION CENTER WASHINGTON DC
0430 UTC SAT JUN 24 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SUPERSEDED BY NEXT ISSUANCE IN 6 HOURS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.

SECURITE

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

SYNOPSIS VALID 0000 UTC JUN 24.
24 HOUR FORECAST VALID 0000 UTC JUN 25.
48 HOUR FORECAST VALID 0000 UTC JUN 26.

.WARNINGS.

...GALE WARNING...
.LOW 51N146W 1008 MB MOVING NE 15 KT. WITHIN 300 NM S AND
BETWEEN 180 NM AND 420 NM N SEMICIRCLES WINDS 25 TO 35 KT. SEAS
TO 12 FT.
.24 HOUR FORECAST LOW 55N142W 1011 MB. BETWEEN 120 NM AND 300 NM
W QUADRANT AND WITHIN 360 NM S AND SW QUADRANTS WINDS 20 TO 30
KT. SEAS TO 11 FT.
.48 HOUR FORECAST LOW 55N136W 1014 MB. WITHIN 420 NM SW QUADRANT
WINDS LESS THAN 25 KT. SEAS TO 8 FT.

...GALE WARNING...
.COMPLEX LOW WITH MAIN LOW 45N165E 994 MB MOVING NE 30 KT.
WITHIN 180 NM W...720 NM S AND BETWEEN 360 NM AND 600 NM E
QUADRANTS WINDS 20 TO 30 KT. SEAS TO 11 FT.
.24 HOUR FORECAST COMPLEX LOW WITH MEAN CENTER 53N179E 995 MB.
FROM 41N TO 51N BETWEEN 166W AND 174W WINDS 25 TO 40 KT. SEAS 9
TO 16 FT. ELSEWHERE WITHIN 600 NM N AND NE AND 780 NM SE
QUADRANTS WINDS 20 TO 30 KT. SEAS TO 10 FT.
.48 HOUR FORECAST LOW 57N178W 992 MB. FRONT TO EXTEND FROM
58N175W TO 54N163W TO 47N163W TO 42N167W. WITHIN 480 NM S
QUADRANT AND 300 NM NE AND E OF FRONT AND FROM 48N TO 55N
BETWEEN 178E AND 169E WINDS 20 TO 30 KT. SEAS 8 TO 14
FT...EXCEPT OVER THE BERING SEA TO 11 FT.

.SYNOPSIS AND FORECAST.

.BOGOSLOF VOLCANO AT 53.92N 168.03W IS IN A STATE OF UNREST.
MARINERS TRAVELING IN THE VICINITY OF BOGOSLOF 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.

.LOW 53N17EE 1002 MB MOVING NE 10 KT. FRONT EXTENDS FROM 55N176E
TO 53N176W TO 47N174W TO 39N178W. WITHIN 240 NM E AND NE OF
FRONT WINDS 20 TO 30 KT. SEAS 8 TO 12 FT.
.24 HOUR FORECAST LOW DISSIPATED WITH CONDITIONS DESCRIBED ABOVE
WITH COMPLEX LOW.

.LOW 33N129W 1010 MB MOVING NW 10 KT. WITHIN 360 NM E OF A LINE
FROM 46N130W TO 40N136W TO 34N140W AREA OF NE WINDS 20 TO 30 KT.
SEAS 8 TO 13 FT.
.24 HOUR FORECAST LOW 35N133W 1011 MB. WITHIN 300 NM E OF A LINE
FROM 46N131W TO 40N141W TO 33N143W AREA OF N TO NE WINDS 20 TO
30 KT. SEAS 8 TO 12 FT.
.48 HOUR FORECAST LOW 36N133W 1013 MB. WITHIN 300 NM E OF A LINE
FROM 50N129W TO 42N140W TO 32N142W WINDS 20 TO 30 KT. SEAS TO 12
FT.

.OVER FORECAST WATERS N OF 63N W OF 165W AREA OF S WINDS TO 25
KT. SEAS TO 8 FT.
.24 HOUR FORECAST N OF 64N W OF 166W AREA OF S WINDS TO 25 KT.
SEAS TO 8 FT.
.48 HOUR FORECAST CONDITIONS DIMINISHED.

.48 HOUR FORECAST FROM 30N TO 36N E OF 122W WINDS TO 25 KT. SEAS
LESS THAN 8 FT.

.DENSE FOG. VSBY OCCASIONALLY LESS THAN 1 NM FROM 50N TO 54N
BETWEEN 138W AND 144W...FROM 40N TO 50N BETWEEN 170W AND
178W...AND FROM 34N TO 50N BETWEEN 164E AND 179E.
.24 HOUR FORECAST DENSE FOG FROM 38N TO 62N BETWEEN 167W AND
176E AND WITHIN 120 NM OF 35N169E.
.48 HOUR FORECAST DENSE FOG N OF 55N BETWEEN 168W AND
179E...FROM 33N TO 39N BETWEEN 160E AND 178E AND WITHIN 300 NM
SE OF A LINE FROM 52N163W TO 43N176W.

.HIGH 47N134W 1029 MB DRIFTING SW.
.24 HOUR FORECAST HIGH DISSIPATED.

.HIGH 43N162W 1034 MB MOVING NE 10 KT.
.24 HOUR FORECAST HIGH 44N156W 1034 MB.
.48 HOUR FORECAST HIGH 44N149W 1032 MB.

.FORECASTER KOSIER. 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 JUN 24.
24 HOUR FORECAST VALID 0000 UTC SUN JUN 25.
48 HOUR FORECAST VALID 0000 UTC MON JUN 26.

.WARNINGS.

.NONE.

.SYNOPSIS AND FORECAST.

.N OF 21N W OF 120W WINDS 20 KT OR LESS. SEAS 8 TO 12 FT IN NW
SWELL. FROM 16N TO 21N BETWEEN 120W AND 130W WINDS 20 KT OR
LESS. SEAS TO 9 FT PRIMARILY IN S SWELL.
.24 HOUR FORECAST N OF 25N W OF 135W WINDS 20 KT OR LESS. SEAS 8
TO 10 FT IN N SWELL.
.48 HOUR FORECAST N OF 28N W OF 138W WINDS 20 KT OR LESS. SEAS
8 TO 9 FT IN N SWELL.

.LOW PRES NEAR 12.5N96.5W 1008 MB MOVING WEST AT 10 KT. WITHIN
120 NM W QUADRANT OF LOW CENTER WINDS 20 TO 25 KT. SEAS LESS
THAN 8 FT.
.24 HOUR FORECAST LOW PRES...POSSIBLE TROPICAL CYCLONE...NEAR
14N99W 1007 MB. WITHIN 90 NM NE QUADRANT OF LOW CENTER WINDS 20
TO 25 KT. SEAS 8 TO 9 FT.
.36 HOUR FORECAST LOW PRES...POSSIBLE TROPICAL CYCLONE...NEAR
15N101W 1006 MB. WITHIN 90 NM N SEMICIRCLE OF LOW CENTER WINDS
20 TO 30 KT. SEAS 8 TO 10 FT.
.48 HOUR FORECAST LOW PRES...POSSIBLE TROPICAL CYCLONE...NEAR
16N103.5W 1006 MB. WITHIN 90 NM OF CENTER...EXCEPT 30 NM SW
QUADRANT WINDS 20 TO 30 KT. SEAS 8 TO 12 FT.

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

CONVECTION VALID AT 0215 UTC SAT JUN 24...

.LOW PRES NEAR 12.5N96.5W...SCATTERED TO NUMEROUS MODERATE AND
ISOLATED STRONG CONVECTION IS NOTED FROM 11N TO 14N BETWEEN 95W
AND 98W.

.INTERTROPICAL CONVERGENCE ZONE/MONSOON TROUGH...
THE MONSOON TROUGH EXTENDS FROM A 1008 MB LOW PRESSSURE LOCATED
NEAR 12.5N96.5W TO 10N100W TO 09N115W TO 09N125W. THE ITCZ AXIS
CONTINUES FROM 09N125W TO BEYOND 06N140W. SCATTERED MODERATE TO
ISOLATED STRONG CONVECTION IS FROM 07N TO 11N BETWEEN 96W AND
101W...AND FROM 07N TO 10N BETWEEN 101W AND 105W. SCATTERED
MODERATE CONVECTION IS WITHIN 90 NM SOUTH OF THE TROUGH BETWEEN
115W AND 121W.

$$
.FORECASTER GR. NATIONAL HURRICANE CENTER.



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