High Seas Forecast
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000
FZPN02 KWBC 252325
HSFEPI

HIGH SEAS FORECAST FOR METAREA XII
NWS OCEAN PREDICTION CENTER WASHINGTON DC
2345 UTC MON SEP 25 2017

CCODE/1:31:12:01:00/AOW+POR/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SUPERSEDED BY NEXT ISSUANCE IN 6 HOURS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.

SECURITE

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

SYNOPSIS VALID 1800 UTC SEP 25.
24 HOUR FORECAST VALID 1800 UTC SEP 26.
48 HOUR FORECAST VALID 1800 UTC SEP 27.

.WARNINGS.

...GALE WARNING...
.LOW 48N156W 996 MB MOVING NE 15 KT. BETWEEN 180 NM AND 420 NM
SW QUADRANT AND WITHIN 240 NM NW QUADRANT WINDS 25 TO 35 KT.
SEAS 8 TO 14 FT. ELSEWHERE WITHIN 300 NM NW...720 NM NE...960 NM
SE AND 660 NM SW QUADRANTS WINDS TO 25 KT. SEAS TO 10 FT.
.24 HOUR FORECAST LOW 52N152W 993 MB. WITHIN 180 NM N OF A LINE
FROM 55N153W TO 57N144W TO 57N137W WINDS 25 TO 40 KT. SEAS TO 12
FT. ELSEWHERE WITHIN 840 NM W SEMICIRCLE...AND 600 NM NE AND
1140 NM SE QUADRANTS WINDS TO 25 KT. SEAS TO 10 FT.
.48 HOUR FORECAST LOW 54N152W 986 MB. WITHIN 240 NM S SEMICIRCLE
AND NW QUADRANT...AND FROM 50N TO 57N BETWEEN 132W AND 136W
WINDS 25 TO 40 KT. SEAS 8 TO 15 FT. ELSEWHERE WITHIN 780 NM
NW...540 NM NE...1260 NM SE AND 960 NM SW QUADRANTS WINDS TO 25
KT. SEAS TO 11 FT.

...GALE WARNING...
.LOW 36N167E 1003 MB MOVING NE 10 KT. WITHIN 360 NM N SEMICIRCLE
WINDS 25 TO 40 KT. SEAS 9 TO 17 FT. ELSEWHERE FROM 30N TO 44N W
OF 179W WINDS TO 25 KT. SEAS TO 12 FT.
.24 HOUR FORECAST LOW 37N172E 1004 MB. WITHIN 420 NM N
SEMICIRCLE WINDS 25 TO 40 KT. SEAS 10 TO 19 FT. ELSEWHERE WITHIN
660 NM N SEMICIRCLE...AND 840 NM SE AND 480 NM SW QUADRANTS
WINDS TO 25 KT. SEAS TO 10 FT.
.48 HOUR FORECAST LOW 37N169W 1007 MB. WITHIN 240 NM N AND 360
NM S SEMICIRCLES WINDS 20 TO 30 KT. SEAS TO 12 FT.

...GALE WARNING...
.24 HOUR FORECAST LOW 32N162E 1004 MB. WITHIN 120 NM N AND 180
NM S SEMICIRCLES WINDS 20 TO 30 KT. SEAS TO 11 FT.
.48 HOUR FORECAST LOW 38N173E 998 MB. WITHIN 360 NM OF LOW
CENTER WINDS 25 TO 40 KT. SEAS 10 TO 18 FT. ELSEWHERE WITHIN 660
NM N SEMICIRCLE...AND 840 NM SE AND 720 NM SW QUADRANTS WINDS TO
25 KT. SEAS 8 TO 14 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.

.FROM 31N TO 44N BETWEEN 122W AND 130W N TO NW WINDS 20 TO 30
KT. SEAS TO 10 FT.
.24 HOUR FORECAST FROM 30N TO 44N BETWEEN 122W AND 130W N WINDS
20 TO 30 KT. SEAS TO 11 FT.
.48 HOUR FORECAST CONDITIONS DIMINISHED.

.LOW 52N131W 1014 MB DRIFTING SE. WITHIN 360 NM S SEMICIRCLE
WINDS TO 25 KT. SEAS TO 9 FT.
.24 HOUR FORECAST LOW DISSIPATED AND CONDITIONS DIMINISHED.

.LOW 57N162W 1004 MB MOVING SW 10 KT. WITHIN 180 NM E
SEMICIRCLE...AND 540 NM NW AND 360 NM SW QUADRANTS WINDS 20 TO
30 KT. SEAS TO 8 FT.
.24 HOUR FORECAST LOW AND CONDITIONS ABSORBED BY LOW 52N152W
DESCRIBED IN WARNINGS SECTION ABOVE.

.48 HOUR FORECAST FROM 43N TO 52N W OF 163W WINDS TO 25 KT. SEAS
TO 8 FT.

.DENSE FOG. VSBY OCCASIONALLY LESS THAN 1 NM FROM 40N TO 51N
BETWEEN 135W AND 158W.
.24 HOUR FORECAST DENSE FOG FROM 44N TO 56N BETWEEN 134W AND
150W.
.48 HOUR FORECAST DENSE FOG FROM 47N TO 51N BETWEEN 136W AND
140W.

.HIGH 39N136W 1025 MB NEARLY STATIONARY.
.24 HOUR FORECAST LITTLE CHANGE.
.48 HOUR FORECAST LITTLE CHANGE.

.HIGH 55N139W 1016 MB MOVING SE 20 KT.
.24 HOUR FORECAST HIGH DISSIPATED.

.HIGH 34N179W 1015 MB DRIFTING SE.
.24 HOUR FORECAST HIGH DISSIPATED.

.HIGH 48N170E 1028 MB DRIFTING N.
.24 HOUR FORECAST HIGH 51N169E 1028 MB.
.48 HOUR FORECAST HIGH 51N173E 1026 MB.

.48 HOUR FORECAST NEW HIGH 36N159W 1020 MB.

.FORECASTER HOLLEY. 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 SEP 25.
24 HOUR FORECAST VALID 1800 UTC TUE SEP 26.
48 HOUR FORECAST VALID 1800 UTC WED SEP 27.

.WARNINGS.

.NONE.

.SYNOPSIS AND FORECAST.

.REMNANTS OF PILAR NEAR 23.8N 107.1W 1005 MB AT 2100 UTC SEP 25
MOVING NNW OR 330 DEG AT 7 KT. MAXIMUM SUSTAINED WINDS 20 KT
GUSTS 30 KT. SEAS LESS THAN 8 FT.
.12 HOUR FORECAST...LOW DISSIPATED. WINDS 20 KT OR LESS. SEAS
LESS THAN 8 FT.

.FROM 10N TO 16N BETWEEN 121W AND 128W WINDS 20 TO 25 KT. SEAS 8
TO 10 FT. ELSEWHERE FROM 10N TO 16.5N BETWEEN 115W AND 131W
WINDS 20 KT OR LESS. SEAS TO 9 FT IN MIXED SWELL.
.24 HOUR FORECAST FROM 09N TO 15N BETWEEN 119W AND 125W WINDS 20
TO 25 KT. SEAS 8 TO 10 FT. ELSEWHERE FROM 09N TO 15N BETWEEN
112W AND 130W WINDS 20 KT OR LESS. SEAS TO 9 FT IN MIXED SWELL.
.48 HOUR FORECAST FROM 09N TO 13N BETWEEN 116W AND 130W WINDS 20
TO 25 KT. SEAS 8 TO 9 FT IN MIXED SW AND NW SWELL. ELSEWHERE
FROM 09N TO 14N BETWEEN 110W AND 132W WINDS 20 KT OR LESS. SEAS
TO 8 FT IN MIXED SWELL.

.FROM 09N TO 13.5N BETWEEN 97W AND 108W WINDS 20 KT OR LESS.
SEAS 8 TO 9 FT IN S TO SW SWELL.
.24 HOUR FORECAST FROM 09N TO 12.5N BETWEEN 94W AND 104W WINDS
20 KT OR LESS. SEAS TO 9 FT IN S TO SW SWELL.
.48 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 2100 UTC MON SEP 25...

.INTERTROPICAL CONVERGENCE ZONE/MONSOON TROUGH...
MONSOON TROUGH EXTENDS FROM 10N75W TO 15.5N96W TO 13N107W TO LOW
PRES NEAR 12.5N126.5W 1010 MB TO BEYOND 11N140W. SCATTERED
MODERATE TO STRONG CONVECTION FROM 03N TO 14.5N E OF 94W...FROM
10N TO 15.5N BETWEEN 94W AND 104W...AND FROM 60 NM N TO 150 NM S
OF TROUGH BETWEEN 121W AND 140W.

.FORECASTER STRIPLING. NATIONAL HURRICANE CENTER.

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

SYNOPSIS VALID 1800 UTC SEP 25 2017.
24 HOUR FORECAST VALID 1800 UTC SEP 26 2017.
48 HOUR FORECAST VALID 1800 UTC SEP 27 2017.

.WARNINGS.

.NONE.

.SYNOPSIS AND FORECAST.

.LOW 12N145W 1011 MB NEARLY STATIONARY. ISOLATED MODERATE TSTMS
WITHIN 240 NM NW QUADRANT.
.24 HOUR FORECAST LOW 11N146W 1011 MB.
.48 HOUR FORECAST LOW 10N148W 1012 MB.

.FRONT FROM 30N166W TO 28N169W TO 30N174W MOVING E 10 KT.
.24 HOUR FORECAST FRONT FROM 30N160W TO 28N168W.
.48 HOUR FORECAST FRONT FROM 30N154W TO 26N165W.

.24 HOUR FORECAST FRONT NEAR 30N160E. WINDS SW 20 TO 25 KT N OF
28N W OF 163W.
.48 HOUR FORECAST WEAKENING FRONT FROM 30N164E TO 28N160E. WINDS
DIMINISHED TO 20 KT OR LESS.

.TROUGH FROM 26N155W TO 21N150W TO 16N150W MOVING W SLOWLY.
ISOLATED MODERATE TSTMS WITHIN 240 NM E OF TROUGH N OF 20N.
.24 HOUR FORECAST DISSIPATING TROUGH FROM 26N156W TO 21N152W TO
16N152W.
.48 HOUR FORECAST TROUGH DISSIPATED.

.TROUGH FROM 10N179W TO 06N160E MOVING NW SLOWLY. SCATTERED
MODERATE TO STRONG TSTMS WITHIN 150 NM OF TROUGH.
.24 HOUR FORECAST TROUGH DISSIPATED.

.HIGH 26N177E 1016 MB MOVING SE 15 KT. RIDGE FROM HIGH TO
24N160E AND FROM HIGH TO 28N175W MOVING SE 15 KT.
.24 HOUR FORECAST HIGH DISSIPATED.

.RIDGE FROM 30N150W TO 25N175W MOVING SE SLOWLY.

.WINDS 20 KT OR LESS AND SEAS 8 FT OR LOWER OVER REMAINDER OF
AREA.

.ISOLATED MODERATE TSTMS FROM 15N TO 18N BETWEEN 171W AND 175W.

.MONSOON TROUGH FROM 10N140W TO 10N176W. ISOLATED MODERATE TSTMS
WITHIN 120 NM OF MONSOON TROUGH.


$$

.FORECASTER BRENCHLEY. HONOLULU HI.



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