High Seas Forecast
Issued by NWS

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000
FZPN01 KWBC 220935
HSFEP1

HIGH SEAS FORECAST
NWS OCEAN PREDICTION CENTER WASHINGTON DC
1030 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SUPERSEDED BY NEXT ISSUANCE IN 6 HOURS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.

PAN PAN

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

SYNOPSIS VALID 0600 UTC AUG 22.
24 HOUR FORECAST VALID 0600 UTC AUG 23.
48 HOUR FORECAST VALID 0600 UTC AUG 24.

.WARNINGS.

...GALE WARNING...
.LOW 55N149W 998 MB MOVING E 15 KT. OVER FORECAST WATERS WITHIN
420 NM SW SEMICIRCLE WINDS 25 TO 35 KT. SEAS 8 TO 16 FT.
.24 HOUR FORECAST LOW 55N140W 999 MB. WITHIN 180 NM NE...300 NM
SE AND 480 NM SW QUADRANTS WINDS 20 TO 30 KT. SEAS 8 TO 15 FT.
.48 HOUR FORECAST LOW 54N134W 1009 MB. WITHIN 240 NM S
SEMICIRCLE AND 180 NM NE QUADRANT WINDS TO 25 KT. SEAS TO 10 FT.

...GALE WARNING...
.LOW 49N168E 999 MB MOVING NE 20 KT. WITHIN 540 NM S...720 NM SE
AND 600 NM NE QUADRANTS WINDS 20 TO 30 KT. SEAS TO 11 FT.
.12 HOUR FORECAST LOW 53N172E 995 MB. WITHIN 180 NM N OF A LINE
FROM 55N170E TO 54N177W WINDS 25 TO 35 KT. SEAS TO 12 FT.
.24 HOUR FORECAST LOW 55N174E 995 MB. WITHIN 180 NM NW
SEMICIRCLE WINDS 25 TO 35 KT. SEAS TO 12 FT. ELSEWHERE FROM 45N
TO 59N BETWEEN 167E AND 165W WINDS 20 TO 30 KT. SEAS TO 11 FT.
.48 HOUR FORECAST LOW ABSORBED BY NEW LOW 58N162W 994 MB. WITHIN
600 NM S SEMICIRCLE 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.

.LOW 57N144W 1000 MB MOVING W 10 KT. OVER FORECAST WATERS WITHIN
540 NM SE QUADRANT WINDS 20 TO 30 KT. SEAS TO 9 FT.
.24 HOUR FORECAST LOW ABSORBED BY LOW 55N140W DESCRIBED IN
WARNINGS SECTION ABOVE.

.LOW 31N126W 1015 MB DRIFTING SW. WITHIN 540 NM NW QUADRANT
WINDS LESS THAN 25 KT. SEAS TO 10 FT.
.24 HOUR FORECAST LOW DISSIPATED AND CONDITIONS DIMINISHED.

.48 HOUR FORECAST LOW 47N161E 1002 MB. WITHIN 420 NM SE QUADRANT
WINDS 20 TO 30 KT. SEAS TO 11 FT.

.48 HOUR FORECAST OVER FORECAST WATERS FROM 36N TO 41N BETWEEN
123W AND 127W AREA OF N TO NW WINDS 20 TO 30 KT. SEAS TO 10 FT.

.48 HOUR FORECAST FROM 63N TO 66N BETWEEN 165W AND 170W AREA OF
N WINDS TO 25 KT. SEAS LESS THAN 8 FT.

.DENSE FOG. VSBY OCCASIONALLY LESS THAN 1 NM WITHIN THE REGION
BOUNDED BY A LINE FROM 55N171E TO 40N176E TO 46N170W TO 53N180W
TO 55N171E...WITHIN 90 NM OF 52N133W...AND NW OF A LINE FROM
62N168W TO 57N177E.
.24 HOUR FORECAST DENSE FOG WITHIN THE REGION BOUNDED BY A LINE
FROM 55N171W TO 43N176W TO 47N160W TO 54N166W TO 55N171W...AND
FROM 52N TO 55N BETWEEN 174E AND 178W.
.48 HOUR FORECAST DENSE FOG BETWEEN 160E AND A LINE FROM 48N169E
TO 40N161E...AND WITHIN 180 NM S OF A LINE FROM 50N150W TO
47N155W.

.HIGH 36N141W 1026 MB MOVING SW 10 KT.
.24 HOUR FORECAST HIGH 35N145W 1026 MB.
.48 HOUR FORECAST HIGH DISSIPATED.

.HIGH 43N164W 1030 MB MOVING SE 10 KT.
.24 HOUR FORECAST HIGH 41N159W 1030 MB.
.48 HOUR FORECAST HIGH 40N159W 1030 MB.

.HIGH W OF AREA 37N156E 1020 MB MOVING NE 35 KT.
.24 HOUR FORECAST HIGH 42N174E 1022 MB.
.48 HOUR FORECAST HIGH DISSIPATED.

.FORECASTER REINHART. 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 MON AUG 22.
24 HOUR FORECAST VALID 0600 UTC TUE AUG 23.
48 HOUR FORECAST VALID 0600 UTC WED AUG 24.

.WARNINGS.

...HURRICANE WARNING...
.HURRICANE KENNETH NEAR 20.0N 132.5W 978 MB AT 0900 UTC AUG 22
MOVING NW OR 325 DEG AT 9 KT. MAXIMUM SUSTAINED WINDS 80 KT
GUSTS 100 KT. TROPICAL STORM FORCE WINDS WITHIN 80 NM NW AND SE
QUADRANTS...90 NM NE QUADRANT AND 60 NM SW QUADRANT. SEAS 12 FT
OR GREATER WITHIN 150 NM NE AND SW QUADRANTS...180 NM NW
QUADRANT AND 120 NM SE QUADRANT WITH SEAS TO 32 FT. ELSEWHERE
WITHIN 180 NM N AND 120 NM S SEMICIRCLES WINDS 20 TO 33 KT. SEAS
9 TO 12 FT. REMAINDER AREA FROM 14N TO 26N W OF 128W WINDS 20 KT
OR LESS. SEAS 8 TO 11 FT IN MIXED SWELL.
.12 HOUR FORECAST TROPICAL STORM KENNETH NEAR 21.3N 133.3W.
MAXIMUM SUSTAINED WINDS 60 KT GUSTS 75 KT.
.24 HOUR FORECAST TROPICAL STORM KENNETH NEAR 23.2N 134.3W.
MAXIMUM SUSTAINED WINDS 45 KT GUSTS 55 KT. TROPICAL STORM FORCE
WINDS WITHIN 60 NM NW AND SE QUADRANTS...70 NM NE QUADRANT AND
40 NM SW QUADRANT. SEAS 12 FT OR GREATER WITHIN 120 NM N AND 90
S SEMICIRCLES WITH SEAS TO 22 FT. ELSEWHERE WITHIN 180 NM NW AND
105 NM SE SEMICIRCLES WINDS 20 TO 33 KT. SEAS 9 TO 12 FT.
REMAINDER AREA N OF 18N W OF 130W WINDS 20 KT OR LESS. SEAS 8 TO
11 FT IN MIXED SWELL.
.48 HOUR FORECAST TROPICAL DEPRESSION KENNETH NEAR 26.6N 136.1W.
MAXIMUM SUSTAINED WINDS 30 KT GUSTS 40 KT. SEAS 12 FT OR GREATER
WITHIN 75 NM N AND 15 NM S SEMICIRCLES WITH SEAS TO 14 FT.
ELSEWHERE WITHIN 150 NM NW AND 60 NM SE SEMICIRCLES WINDS 20 TO
30 KT. SEAS 8 TO 11 FT. ELSEWHERE N OF 23N W OF 133W WINDS 20 KT
OR LESS. SEAS 8 TO 10 FT IN MIXED SWELL.
.72 HOUR FORECAST POST-TROPICAL REMNANT LOW KENNETH NEAR 28.7N
136.5W. 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
137.0W. MAXIMUM SUSTAINED WINDS 25 KT GUSTS 35 KT.
.120 HOUR FORECAST POST-TROPICAL REMNANT LOW KENNETH NEAR 31.0N
138.0W. 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.

.N OF 28N BETWEEN 127W AND 134W WINDS 20 KT OR LESS. SEAS 8 TO 9
FT IN N SWELL.
.24 HOUR FORECAST CONDITIONS MERGED WITH HURRICANE KENNETH.

.GULF OF TEHUANTEPEC N OF 15N N WINDS 20 TO 25 KT. SEAS TO 8 FT.
.24 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 0900 UTC TUE AUG 22...

.HURRICANE KENNETH...NUMEROUS MODERATE SCATTERED STRONG WITHIN
90 NM OF CENTER.

.INTERTROPICAL CONVERGENCE ZONE/MONSOON TROUGH...
MONSOON TROUGH FROM 08N78W TO 11N100W TO 10N119W TO 07N126W.
SCATTERED MODERATE WITHIN 120 NM OF AXIS BETWEEN 112W AND 127W.

$$
.FORECASTER MUNDELL. NATIONAL HURRICANE CENTER.



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