High Seas Forecast
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000
FZPN02 KWBC 212325
HSFEPI

HIGH SEAS FORECAST FOR METAREA XII
NWS OCEAN PREDICTION CENTER WASHINGTON DC
2345 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SUPERSEDED BY NEXT ISSUANCE IN 6 HOURS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 1800 UTC AUG 21.
24 HOUR FORECAST VALID 1800 UTC AUG 22.
48 HOUR FORECAST VALID 1800 UTC AUG 23.

.WARNINGS.

...GALE WARNING...
.LOW 58N150W 996 MB NEARLY STATIONARY WILL MOVE SE 10 KT AFTER
06 HOURS. WITHIN 240 NM NW AND 480 NM SW QUADRANTS WINDS 25 TO
35 KT. SEAS 8 TO 14 FT. ELSEWHERE WITHIN 180 NM NE AND 600 NM E
QUADRANTS WINDS 20 TO 30 KT. SEAS TO 10 FT.
.24 HOUR FORECAST LOW 54N143W 999 MB. WITHIN 420 NM S AND SW
QUADRANTS WINDS 25 TO 35 KT. SEAS 9 TO 17 FT.
.48 HOUR FORECAST LOW 55N137W 1007 MB. WITHIN 300 NM S
SEMICIRCLE WINDS 20 TO 30 KT. SEAS TO 12 FT.

...GALE WARNING...
.LOW 45N164E 1000 MB MOVING NE 30 KT. WITHIN 300 NM SW
SEMICIRCLE...AND 360 NM E OF A FRONT FROM 43N172E TO 33N166E
WINDS 20 TO 30 KT. SEAS TO 10 FT.
.24 HOUR FORECAST LOW 53N173E 994 MB. WITHIN 180 NM N OF A LINE
FROM 55N175E TO 52N173W WINDS 25 TO 35 KT. SEAS TO 12 FT.
ELSEWHERE WITHIN 480 NM S...360 NM W AND N...AND 660 NM E
QUADRANTS WINDS 20 TO 30 KT. SEAS TO 10 FT.
.48 HOUR FORECAST LOW 55N180W 998 MB. WITHIN 360 NM N AND NW
QUADRANTS...AND FROM 48N TO 55N BETWEEN 155W AND 170E 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.

.WITHIN 240 NM W OF A LINE FROM 43N124W TO 32N128W WINDS TO 25
KT. SEAS TO 12 FT.
.24 HOUR FORECAST CONDITIONS DIMINISHED.

.48 HOUR FORECAST FROM 39N TO 45N BETWEEN 164E AND 160E WINDS TO
25 KT. SEAS TO TO 11 FT.

.DENSE FOG. VSBY OCCASIONALLY LESS THAN 1 NM WITHIN 240 NM OF
52N135W...WITHIN 120 NM OF 64N170W...AND N OF 40N BETWEEN 176W
AND 169E.
.24 HOUR FORECAST DENSE FOG WITHIN THE REGION BOUNDED BY A LINE
FROM 54N169E TO 42N179E TO 46N164W TO 54N176W TO 54N169E.
.48 HOUR FORECAST DENSE FOG WITHIN 180 NM OF 49N160W...AND
WITHIN 120 NM EITHER SIDE OF A LINE FROM 55N172E TO 55N167W.

.HIGH 38N138W 1027 MB MOVING SW 10 KT.
.24 HOUR FORECAST HIGH 36N143W 1026 MB.
.48 HOUR FORECAST HIGH 34N148W 1026 MB.

.HIGH 41N170W 1029 MB MOVING E 20 KT.
.24 HOUR FORECAST HIGH 42N161W 1029 MB.
.48 HOUR FORECAST HIGH 41N161W 1031 MB.

.HIGH 52N171W 1027 MB MOVING SE 10 KT.
.24 HOUR FORECAST HIGH DISSIPATED.

.24 HOUR FORECAST HIGH 39N163E 1020 MB.
.48 HOUR FORECAST HIGH 43N176E 1021 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 MON AUG 21.
24 HOUR FORECAST VALID 1800 UTC TUE AUG 22.
48 HOUR FORECAST VALID 1800 UTC WED AUG 23.

.WARNINGS.

...HURRICANE WARNING...

.HURRICANE KENNETH NEAR 18.3N 131.6W 960 MB AT 2100 UTC AUG 21
MOVING NW OR 305 DEG AT 8 KT. MAXIMUM SUSTAINED WINDS 105 KT
GUSTS 130 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 37 FT. ELSEWHERE
WITHIN 270 NM N AND 220 NM S SEMICIRCLES WINDS 20 TO 33 KT. SEAS
8 TO 12 FT.
.24 HOUR FORECAST HURRICANE KENNETH NEAR 21.2N 133.4W. 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 28 FT. ELSEWHERE WITHIN 400 NM NW QUADRANT...175 NM SE
QUADRANT...260 NM NE QUADRANT AND 160 NM SW QUADRANT WINDS 20 TO
33 KT. SEAS 8 TO 12 FT. REMAINDER OF AREA N OF 15N W OF 128W
WINDS 20 KT OR LESS. SEAS 8 TO 11 FT IN MIXED SWELL.
.48 HOUR FORECAST TROPICAL STORM KENNETH NEAR 24.8N 135.0W.
MAXIMUM SUSTAINED WINDS 50 KT GUSTS 60 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 WITH SEAS TO 22 FT.
ELSEWHERE WITHIN 400 NM NW QUADRANT...180 NM SE QUADRANT...260
NM NE QUADRANT AND 110 NM SW QUADRANT WINDS 20 TO 33 KT. SEAS 8
TO 12 FT. REMAINDER OF AREA SEAS N OF 17N W OF 130W WINDS 20 KT
OR LESS. SEAS 8 TO 11 FT IN MIXED SWELL.
.72 HOUR FORECAST POST-TROPICAL KENNETH NEAR 27.8N 136.2W.
MAXIMUM SUSTAINED WINDS 40 KT GUSTS 50 KT.
EXTENDED OUTLOOK...USE FOR GUIDANCE ONLY...ERRORS MAY BE LARGE.
.96 HOUR FORECAST POST-TROPICAL KENNETH NEAR 29.6N 137.2W.
MAXIMUM SUSTAINED WINDS 35 KT GUSTS 45 KT.
.120 HOUR FORECAST POST-TROPICAL REMNANT LOW KENNETH NEAR 31.0N
138.0W. MAXIMUM SUSTAINED WINDS 25 KT GUSTS 35 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 29N BETWEEN 127W AND 132W WINDS 20 KT OR LESS. SEAS 8 TO 9
FT IN N SWELL.
.12 HOUR FORECAST CONDITIONS MERGED WITH HURRICANE KENNETH.

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

CONVECTION VALID AT 2100 UTC MON AUG 21...

.HURRICANE KENNETH...NUMEROUS STRONG WITHIN 45 NM OF CENTER.
SCATTERED MODERATE ISOLATED STRONG ELSEWHERE FROM 17N TO 20N
BETWEEN 129W AND 132W.

.TROPICAL WAVE ALONG 97W S OF 18N...
SCATTERED MODERATE ISOLATED STRONG WITHIN 145 NM EITHER SIDE OF
WAVE AXIS.

.INTERTROPICAL CONVERGENCE ZONE/MONSOON TROUGH...
MONSOON TROUGH FROM 10N85W TO LOW PRES NEAR 10N89W 1011 MB TO
LOW PRES NEAR 10N98W 1010 MB TO 10N113W TO 07N124W...RESUMING
NEAR 14N132W BEYOND 12N140W. SCATTERED MODERATE WITHIN 170 NM S
OF AXIS BETWEEN 88W AND 127W...WITHIN 200 NM N OF AXIS BETWEEN
95W AND 103W AND BETWEEN 117W AND 127W. SCATTERED MODERATE
ELSEWHERE FROM 11N TO 15N BETWEEN 129W AND 136W.

.FORECASTER NR. NATIONAL HURRICANE CENTER.

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

SYNOPSIS VALID 1800 UTC AUG 21 2017.
24 HOUR FORECAST VALID 1800 UTC AUG 22 2017.
48 HOUR FORECAST VALID 1800 UTC AUG 23 2017.

.WARNINGS.

.NONE.

.SYNOPSIS AND FORECAST.

.TROUGH FROM 19N171E TO 09N168E TO 04N162E MOVING W 15 KT.
ISOLATED MODERATE TSTMS WITHIN 150 NM OF TROUGH...AND ELSEWHERE
FROM 03N TO 08N W OF 168E.
.24 HOUR FORECAST TROUGH FROM 19N164W TO 13N164W TO 06N160E.
.48 HOUR FORECAST TROUGH MOVED W OF AREA.

.RIDGE FROM 30N171E TO 27N160E MOVING N SLOWLY.

.WINDS 20 KT OR LESS OVER ENTIRE FORECAST AREA.

.24 HOUR FORECAST SEAS 8 TO 10 FT FROM 18N TO 25N E OF 142W.
.48 HOUR FORECAST SEAS 8 TO 10 FT FROM 23N TO 29N E OF 144W.

.OTHERWISE SEAS 8 FT OR LESS OVER REMAINDER OF AREA.

.MONSOON TROUGH FROM 12N140W TO 12N146W TO 10N151W TO 10N168W.
SCATTERED MODERATE TSTMS WITHIN 120 NM S OF TROUGH W OF 148W.
ISOLATED MODERATE TSTMS BETWEEN TROUGH AND 15N W OF 152W...AND
ELSEWHERE WITHIN 90 NM OF TROUGH.

.SCATTERED MODERATE TSTMS FROM 23N TO 25N BETWEEN 158W AND 163W.
ISOLATED TSTMS FROM 07N TO 09N BETWEEN 171W AND 174W...AND FROM
25N TO 29N BETWEEN 175E AND 178E.

$$

.FORECASTER BRAVENDER. HONOLULU HI.


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