High Seas Forecast
Issued by NWS

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000
FZPN01 KWBC 222204
HSFEP1

HIGH SEAS FORECAST
NWS OCEAN PREDICTION CENTER WASHINGTON DC
2230 UTC TUE AUG 22 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SUPERSEDED BY NEXT ISSUANCE IN 6 HOURS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 1800 UTC AUG 22.
24 HOUR FORECAST VALID 1800 UTC AUG 23.
48 HOUR FORECAST VALID 1800 UTC AUG 24.

.WARNINGS.

...GALE WARNING...
.LOW 54N143W 999 MB MOVING NE 10 KT. WITHIN 360 NM S AND 420 NM
W QUADRANTS WINDS 25 TO 35 KT. SEAS 9 TO 18 FT.
.24 HOUR FORECAST LOW 55N137W 1002 MB. WITHIN 360 NM S AND 240
NM E QUADRANTS WINDS 20 TO 30 KT. SEAS TO 12 FT.
.48 HOUR FORECAST LOW DISSIPATED AND CONDITIONS DIMINISHED.

...GALE WARNING...
.LOW 53N172E 995 MB MOVING NE 15 KT. OVER FORECAST WATERS WITHIN
180 NM N OF A LINE FROM 55N172E TO 52N173W WINDS 25 TO 35 KT.
SEAS TO 12 FT. ELSEWHERE WITHIN 720 NM SE...360 NM SW...AND 540
NM NE QUADRANTS WINDS 20 TO 30 KT. SEAS TO 11 FT.
.24 HOUR FORECAST NEW LOW 57N169W 996 MB. FROM 48N TO 58N
BETWEEN 162W AND 170W WINDS 20 TO 30 KT. SEAS TO 12 FT.
.48 HOUR FORECAST LOW 58N158W 995 MB. WITHIN 480 NM E AND
W...AND 840 NM S QUADRANTS WINDS 20 TO 30 KT. SEAS TO 12 FT.

.SYNOPSIS AND FORECAST.

.BOGOSLOF VOLCANO AT 53.92N 168.03W IS CURRENTLY IN A HEIGHTENED
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.

.24 HOUR FORECAST FROM 40N TO 45N BETWEEN 166E AND 160E WINDS 20
TO 30 KT. SEAS TO 11 FT.
.48 HOUR FORECAST LOW 48N164E 1006 MB. WITHIN 420 NM SE QUADRANT
WINDS TO 25 KT. SEAS TO 9 FT.

.48 HOUR FORECAST FROM 36N TO 43N BETWEEN 123W AND 126W WINDS TO
25 KT. SEAS TO 8 FT.

.48 HOUR FORECAST FROM 30N TO 32N BETWEEN 132W AND 140W WINDS TO
25 KT. SEAS TO 10 FT.

.DENSE FOG. VSBY OCCASIONALLY LESS THAN 1 NM WITHIN 60 NM OF
43N127W...AND WITHIN THE REGION BOUNDED BY A LINE FROM 54N169E
TO 42N176W TO 47N164W TO 57N175E TO 54N169E.
.24 HOUR FORECAST DENSE FOG FROM 52N TO 55N BETWEEN 178W AND
173E...FROM 41N TO 45N BETWEEN 164E AND 160E...AND WITHIN 300 NM
E OF A LINE FROM 54N160W TO 50N161W TO 45N170W.
.48 HOUR FORECAST DENSE FOG WITHIN 180 NM OF 44N173W AND WITHIN
180 NM EITHER SIDE OF A LINE FROM 48N170E TO 41N160E.

.HIGH 35N143W 1026 MB MOVING SW 10 KT.
.24 HOUR FORECAST HIGH 34N149W 1025 MB.
.48 HOUR FORECAST HIGH DISSIPATED.

.HIGH 43N159W 1030 MB MOVING SW 10 KT.
.24 HOUR FORECAST HIGH 41N163W 1030 MB.
.48 HOUR FORECAST HIGH 40N157W 1030 MB.

.HIGH 39N166E 1021 MB MOVING NE 20 KT.
.24 HOUR FORECAST HIGH DISSIPATED.

.HIGH 41N169W 1030 MB DRIFTING NE.
.24 HOUR FORECAST HIGH DISSIPATED.

.48 HOUR FORECAST HIGH 55N174E 1018 MB.

.FORECASTER COLLINS. 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 1800 UTC TUE AUG 22.
24 HOUR FORECAST VALID 1800 UTC WED AUG 23.
48 HOUR FORECAST VALID 1800 UTC THU AUG 24.

.WARNINGS.

...TROPICAL STORM WARNING...
.TROPICAL STORM KENNETH NEAR 21.8N 133.6W 990 MB AT 2100 UTC AUG
22 MOVING NNW OR 330 DEG AT 10 KT. MAXIMUM SUSTAINED WINDS 60 KT
GUSTS 75 KT. TROPICAL STORM FORCE WINDS WITHIN 70 NM NW AND SE
QUADRANTS...80 NM NE QUADRANT AND 60 NM SW QUADRANT. SEAS 12 FT
OR GREATER WITHIN 120 NM OF CENTER EXCEPT 150 NM NW QUADRANT
WITH SEAS TO 24 FT. ELSEWHERE WITHIN 210 NM N SEMICIRCLE AND 180
NM S SEMICIRCLE WINDS 20 TO 33 KT. SEAS 9 TO 12 FT. REMAINDER OF
AREA FROM 15N TO 28N W OF 128W WINDS 20 KT OR LESS. SEAS 8 TO 11
FT IN MIXED SWELL.
.24 HOUR FORECAST TROPICAL STORM KENNETH NEAR 24.9N 135.3W.
MAXIMUM SUSTAINED WINDS 40 KT GUSTS 50 KT. TROPICAL STORM FORCE
WINDS WITHIN 60 NM NW AND SE QUADRANTS...70 NM NE QUADRANT AND
50 NM SW QUADRANT. SEAS 12 FT OR GREATER WITH SEAS TO 17 FT.
ELSEWHERE WITHIN 210 NM N SEMICIRCLE AND 90 NM S SEMICIRCLE
WINDS 20 TO 33 KT. SEAS 9 TO 12 FT. REMAINDER OF AREA FROM 18N
TO 30N W OF 131W WINDS 20 KT OR LESS. SEAS 8 TO 11 FT IN MIXED
SWELL.
.48 HOUR FORECAST POST-TROPICAL REMNANT LOW KENNETH NEAR 27.5N
136.6W. MAXIMUM SUSTAINED WINDS 25 KT GUSTS 35 KT. SEAS TO 12
FT. ELSEWHERE WITHIN 180 NM N SEMICIRCLE AND 75 NM S SEMICIRCLE
WINDS 20 TO 25 KT. SEAS 9 TO 11 FT. REMAINDER OF AREA N OF 25N W
W OF 133W WINDS 20 KT OR LESS. SEAS 8 TO 11 FT IN MIXED SWELL.
.72 HOUR FORECAST POST-TROPICAL REMNANT LOW KENNETH NEAR 29.0N
137.3W. MAXIMUM SUSTAINED WINDS 25 KT GUSTS 35 KT.
EXTENDED OUTLOOK...USE FOR GUIDANCE ONLY...ERRORS MAY BE LARGE.
.96 HOUR FORECAST POST-TROPICAL REMNANT LOW KENNETH NEAR 30.0N
138.0W. MAXIMUM SUSTAINED WINDS 20 KT GUSTS 30 KT.
.120 HOUR FORECAST POST-TROPICAL REMNANT LOW KENNETH NEAR 31.0N
140.0W. MAXIMUM SUSTAINED WINDS 20 KT GUSTS 30 KT.

FORECAST WINDS IN AND NEAR ACTIVE TROPICAL CYCLONES SHOULD BE
USED WITH CAUTION DUE TO UNCERTAINTY IN FORECAST TRACK...SIZE
AND INTENSITY.

.SYNOPSIS AND FORECAST.

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

CONVECTION VALID AT 2030 UTC TUE AUG 22...

.TROPICAL STORM KENNETH...NUMEROUS MODERATE WITHIN 90 NM OF
CENTER.

.INTERTROPICAL CONVERGENCE ZONE/MONSOON TROUGH...
MONSOON TROUGH FROM 10N85W TO LOW PRES 1011 MB NEAR 09N90W TO
12N100W TO 10N120W TO 07N133W...RESUMING NEAR 15N133W TO BEYOND
11N140W. WIDELY SCATTERED MODERATE CONVECTION IS FROM 06N TO 15N
BETWEEN 94W AND 104W AND FROM 06N TO 13N BETWEEN 108W AND 131W.

$$
.FORECASTER RAMOS. NATIONAL HURRICANE CENTER.



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