High Seas Forecast
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000
FZPN02 KWBC 210525
HSFEPI

HIGH SEAS FORECAST FOR METAREA XII
NWS OCEAN PREDICTION CENTER WASHINGTON DC
0545 UTC MON AUG 21 2017

CCODE/2:31:12:11:00/AOW+POR+AOE/NWS/CCODE
SUPERSEDED BY NEXT ISSUANCE IN 6 HOURS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 AUG 21.
24 HOUR FORECAST VALID 0000 UTC AUG 22.
48 HOUR FORECAST VALID 0000 UTC AUG 23.

.WARNINGS.

...GALE WARNING...
.OVER FORECAST WATERS FROM 40N TO 43N BETWEEN 124W AND 127W
WINDS 25 TO 35 KT. SEAS 9 TO 16 FT. ELSEWHERE FROM 34N TO 44N
BETWEEN 124W AND 131W WINDS 20 TO 30 KT. SEAS 8 TO 14 FT.
.24 HOUR FORECAST WITHIN 240 NM W OF A LINE FROM 43N124W TO
31N129W WINDS TO 25 KT. SEAS TO 11 FT.
.48 HOUR FORECAST CONDITIONS DIMINISHED.

...GALE WARNING...
.LOW 43N163E 999 MB MOVING NE 10 KT. FRONT EXTENDS FROM THE LOW
TO 44N170E TO 42N178E. WITHIN 240 NM N OF THE FRONT WINDS 25 TO
35 KT. SEAS 8 TO 14 FT. ELSEWHERE WITHIN 720 NM SE QUADRANT
WINDS 20 TO 30 KT. SEAS TO 10 FT.
.24 HOUR FORECAST COMPLEX LOW WITH MAIN CENTER 45N167E 1000 MB.
WITHIN 720 NM E AND 360 NM W SEMICIRCLES WINDS 20 TO 30 KT. SEAS
TO 12 FT.
.48 HOUR FORECAST LOW 54N173E 992 MB. FROM 55N TO 58N W OF 170W
WINDS 25 TO 35 KT. SEAS TO 12 FT. ELSEWHERE WITHIN 780 NM SE AND
360 NM SW QUADRANTS WINDS 20 TO 30 KT. SEAS TO 10 FT.

...GALE WARNING...
.LOW 57N149W 995 MB NEARLY STATIONARY. OVER FORECAST WATERS N OF
56N BETWEEN 133W AND 150W...ALSO WITHIN 600 NM W AND SE AND 780
NM S QUADRANTS WINDS 20 TO 30 KT. SEAS TO 11 FT.
.06 HOUR FORECAST LOW 57N149W 994 MB. N OF 58N BETWEEN 138W AND
153W WINDS 25 TO 35 KT. SEAS TO 12 FT.
.24 HOUR FORECAST LOW 57N150W 998 MB. WITHIN 420 NM W AND SW
QUADRANTS WINDS 25 TO 40 KT. SEAS 8 TO 16 FT. ELSEWHERE WITHIN
360 NM NE QUADRANT AND 180 NM E OF A FRONT FROM 56N135W TO
48N139W TO 41N145W WINDS TO 25 KT. SEAS TO 9 FT.
.48 HOUR FORECAST LOW 55N142W 1001 MB. WITHIN 480 NM SW AND 360
NM SE QUADRANTS WINDS 20 TO 30 KT. SEAS 8 TO 15 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.

.DENSE FOG. VSBY OCCASIONALLY LESS THAN 1 NM WITHIN 300 NM E OF
A LINE FROM 54N140W TO 43N153W...OVER FORECAST WATERS W OF A
LINE FROM 57N178E TO 52N177W...AND FROM 41N TO 44N BETWEEN 171E
AND 174E.
.24 HOUR FORECAST DENSE FOG FROM 40N TO 60N BETWEEN 170E AND
174W.
.48 HOUR FORECAST DENSE FOG WITHIN THE REGION BOUNDED BY A LINE
FROM 59N177W TO 47N164W TO 42N178W TO 54N170E TO 59N177W.

.HIGH 40N139W 1028 MB MOVING SW 10 KT.
.24 HOUR FORECAST HIGH 36N140W 1025 MB.
.48 HOUR FORECAST HIGH 34N145W 1026 MB.

.HIGH 55N174W 1025 MB MOVING SE 15 KT.
.24 HOUR FORECAST HIGH DISSIPATED.

.HIGH 41N174W 1027 MB MOVING E 10 KT.
.24 HOUR FORECAST HIGH 41N170W 1029 MB.
.48 HOUR FORECAST HIGH 42N164W 1031 MB.

.HIGH 33N176W 1024 MB DRIFTING W.
.24 HOUR FORECAST HIGH DISSIPATED.

.48 HOUR FORECAST HIGH 40N170E 1022 MB.

.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 0000 UTC MON AUG 21.
24 HOUR FORECAST VALID 0000 UTC TUE AUG 22.
48 HOUR FORECAST VALID 0000 UTC WED AUG 23.

.WARNINGS.

...HURRICANE WARNING...
.HURRICANE KENNETH NEAR 16.8N 129.1W 964 MB AT 0300 UTC AUG 21
MOVING WNW OR 285 DEG AT 9 KT. MAXIMUM SUSTAINED WINDS 100 KT
GUSTS 120 KT. TROPICAL STORM FORCE WINDS WITHIN 70 NM NW AND SE
QUADRANTS...80 NM NE QUADRANT AND 50 NM SW QUADRANT.  SEAS 12 FT
OR GREATER WITHIN 150 NM N SEMICIRCLE AND 75 NM S SEMICIRCLE
WITH SEAS TO 29 FT. ELSEWHERE WITHIN 270 NM N AND 150 NM S
SEMICIRCLES WINDS 20 TO 33 KT. SEAS 8 TO 11 FT.
.24 HOUR FORECAST HURRICANE KENNETH NEAR 18.7N 131.7W. MAXIMUM
SUSTAINED WINDS 100 KT GUSTS 120 KT. TROPICAL STORM FORCE WINDS
WITHIN 90 NM NE QUADRANT...70 NM SE QUADRANT...50 NM SW
QUADRANT...AND 80 NM NW QUADRANT. SEAS 12 FT OR GREATER WITHIN
180 NM NW AND 120 NM SE SEMICIRCLES WITH SEAS TO 30 FT.
ELSEWHERE WITHIN 270 NM NW AND 120 NM SE SEMICIRCLES WINDS 20 TO
33 KT. SEAS 8 TO 11 FT.
.48 HOUR FORECAST HURRICANE KENNETH NEAR 22.1N 133.6W. MAXIMUM
SUSTAINED WINDS 70 KT GUSTS 85 KT. LITTLE CHANGE IN RADIUS OF
TROPICAL STORM FORCE WINDS AND SEAS 12 FT OR GREATER WITH SEAS
TO 29 FT. ELSEWHERE WITHIN 240 NM NW AND 120 NM SE SEMICIRCLES
WINDS 20 TO 33 KT. SEAS 8 TO 11 FT.
.72 HOUR FORECAST TROPICAL STORM KENNETH NEAR 25.5N 135.0W.
MAXIMUM SUSTAINED WINDS 50 KT GUSTS 60 KT.
EXTENDED OUTLOOK...USE FOR GUIDANCE ONLY...ERRORS MAY BE LARGE.
.96 HOUR FORECAST POST-TROPICAL KENNETH NEAR 28.5N 136.0W.
MAXIMUM SUSTAINED WINDS 40 KT GUSTS 50 KT.
.120 HOUR FORECAST POST-TROPICAL REMNANT LOW KENNETH NEAR 30.0N
136.5W. MAXIMUM SUSTAINED WINDS 30 KT GUSTS 40 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 14N BETWEEN 94W AND 96W...INCLUDING THE GULF OF
TEHUANTEPEC...N WINDS 20 TO 25 KT. SEAS TO 8 FT.
.18 HOUR FORECAST WINDS 20 KT OR LESS. SEAS LESS THAN 8 FT.

.12 HOUR FORECAST N OF 29N BETWEEN 125W AND 132W WINDS 20 KT OR
LESS. SEAS TO 8 FT IN N SWELL.
.24 HOUR FORECAST N OF 28N BETWEEN 127W AND 133W WINDS 20 KT OR
LESS. SEAS 8 FT IN N SWELL.
.48 HOUR FORECAST ELSEWHERE N OF 25N BETWEEN 130W AND 138W WINDS
20 KT OR LESS. SEAS TO 9 FT IN MIXED SWELL.

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

CONVECTION VALID AT 0245 UTC MON AUG 21...

.HURRICANE KENNETH...NUMEROUS STRONG WITHIN 90 NM NE AND 60 NM
SW SEMICIRCLES OF CENTER. SCATTERED MODERATE ISOLATED STRONG
ELSEWHERE FROM 14N TO 19N BETWEEN 126W AND 130W.

.TROPICAL WAVE AXIS NEAR 90W N OF 10N...SCATTERED MODERATE
ISOLATED STRONG WITHIN 30 NM E OF THE TROPICAL WAVE AXIS.

.INTERTROPICAL CONVERGENCE ZONE/MONSOON TROUGH...
MONSOON TROUGH FROM 10N85W TO 11N90W TO 09N98W TO 10N105W TO
09N113W TO 07N118W TO 08N120W. IT RESUMES FROM 13N131W TO
12N140W. SCATTERED MODERATE ISOLATED STRONG WITHIN 120 NM N OF
THE MONSOON TROUGH BETWEEN 95W AND 102W. SCATTERED MODERATE
ISOLATED STRONG WITHIN 90 NM S OF THE MONSOON TROUGH BETWEEN
111W AND 114W. SCATTERED MODERATE ISOLATED STRONG WITHIN 60 NM N
OF THE MONSOON TROUGH BETWEEN 116W AND 120W. SCATTERED MODERATE
60 NM S OF THE MONSOON TROUGH W OF 132W.

.FORECASTER AL. NATIONAL HURRICANE CENTER.

NATIONAL WEATHER SERVICE HONOLULU HI
NORTH PACIFIC EQUATOR TO 30N BETWEEN 140W AND 160E

SYNOPSIS VALID 0000 UTC AUG 21 2017.
24 HOUR FORECAST VALID 0000 UTC AUG 22 2017.
48 HOUR FORECAST VALID 0000 UTC AUG 23 2017.

.WARNINGS.

.NONE.

.SYNOPSIS AND FORECAST.

.TROUGH NEAR 30N160E NEARLY STATIONARY.
.24 HOUR FORECAST LITTLE CHANGE.
.48 HOUR FORECAST LITTLE CHANGE.

.RIDGE FROM 30N169E TO 28N160E MOVING SE SLOWLY.

.WINDS 20 KT OR LESS ENTIRE FORECAST AREA.

.SEAS 8 FT OR LOWER ENTIRE FORECAST AREA.
.24 HOUR FORECAST LITTLE CHANGE.
.48 HOUR FORECAST SEAS 8 TO 9 FT FROM 20N TO 27N E OF 143W.

.ITCZ FROM 12N140W TO 10N160W TO 09N180W TO 09N160E. SCATTERED
MODERATE TSTMS WITHIN 240 NM OF ITCZ BETWEEN 160W AND 172E.
ISOLATED MODERATE TSTMS ELSEWHERE WITHIN 120 NM OF ITCZ.

.ISOLATED MODERATE TO STRONG TSTMS WITHIN 90 NM OF 15N175E AND S
OF 04S W OF 172E.

$$

.FORECASTER BURKE. HONOLULU HI.



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