High Seas Forecast
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000
FZPN02 KWBC 192325
HSFEPI

HIGH SEAS FORECAST FOR METAREA XII
NWS OCEAN PREDICTION CENTER WASHINGTON DC
2345 UTC TUE SEP 19 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SUPERSEDED BY NEXT ISSUANCE IN 6 HOURS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 19.
24 HOUR FORECAST VALID 1800 UTC SEP 20.
48 HOUR FORECAST VALID 1800 UTC SEP 21.

.WARNINGS.

...STORM WARNING...
.LOW 45N174W 995 MB MOVING NW 10 KT. WITHIN 540 NM NW SEMICIRCLE
AND WITHIN 300 NM E OF A FRONT FROM 47N173W TO 41N171W TO
30N173W WINDS 25 TO 40 KT. SEAS 9 TO 17 FT.
.12 HOUR FORECAST LOW 48N179W 988 MB. WITHIN 120 NM N AND NW OF
A LINE FROM 51N170W TO 50N176W TO 47N180W WINDS 35 TO 50 KT.
SEAS 14 TO 24 FT.
.24 HOUR FORECAST LOW 48N180W 984 MB. WITHIN 180 NM W SEMICIRCLE
WINDS 35 TO 50 KT. SEAS 16 TO 24 FT. ELSEWHERE WITHIN 240 NM E
AND 480 NM W SEMICIRCLE...WITHIN 300 NM E OF A FRONT FROM
53N168W TO 46N164W TO 36N166W...AND FROM 53N TO 58N BETWEEN 164W
AND 180W WINDS 25 TO 35 KT. SEAS 9 TO 15 FT.
.48 HOUR FORECAST LOW 49N174W 990 MB. WITHIN 420 NM SE
SEMICIRCLE AND WITHIN 420 NM N OF A LINE FROM 50N174E TO 55N170W
TO 57N163W WINDS 25 TO 35 KT. SEAS 9 TO 17 FT. ELSEWHERE WITHIN
240 NM E OF A FRONT FROM 58N152W TO 46N155W WINDS TO 25 KT. SEAS
TO 10 FT.

...GALE WARNING...
.LOW 39N178E 996 MB MOVING NE 25 KT. EXCEPT WHERE NOTED WITH LOW
45N174W ABOVE...WITHIN 480 NM W SEMICIRCLE AND S QUADRANT WINDS
25 TO 35 KT. SEAS 9 TO 18 FT.
.24 HOUR FORECAST LOW 42N172W 999 MB. EXCEPT WHERE NOTED WITH
LOW 48N180W ABOVE...WITHIN 300 NM SE SEMICIRCLE WINDS 25 TO 35
KT. SEAS 9 TO 12 FT.
.48 HOUR FORECAST LOW AND CONDITIONS ABSORBED BY LOW 49N174W
DESCRIBED ABOVE.

...GALE WARNING...
.LOW 44N132W 1012 MB MOVING SE 25 KT. WITHIN 240 NM S AND 420 NM
W QUADRANTS WINDS 25 TO 35 KT. SEAS 10 TO 15 FT.
.24 HOUR FORECAST LOW DISSIPATED INLAND AND CONDITIONS DESCRIBED
BELOW WITH LOW 46N122W.

...GALE WARNING...
.LOW 52N132W 1006 MB MOVING SE 20 KT. WITHIN 540 NM W AND SW
QUADRANTS WINDS 20 TO 30 KT. SEAS TO 12 FT.
.12 HOUR FORECAST LOW 49N127W 1004 MB. WITHIN 540 NM W AND SW
QUADRANTS WINDS 25 TO 35 KT. SEAS 8 TO 14 FT.
.24 HOUR FORECAST INLAND LOW 46N122W 1006 MB. FROM 41N TO 52N
BETWEEN 127W AND 138W WINDS 25 TO 35 KT. SEAS 8 TO 14 FT.
.48 HOUR FORECAST LOW DISSIPATED INLAND. FROM 40N TO 52N BETWEEN
127W AND 136W WINDS 20 TO 30 KT. SEAS 8 TO 13 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 60N146W 1009 MB NEARLY STATIONARY. OVER FORECAST WATERS
WITHIN 180 NM SW OF A LINE FROM 60N153W TO 58N148W WINDS 20 TO
30 KT. SEAS TO 11 FT.
.24 HOUR FORECAST LOW 60N148W 1016 MB. WITHIN 120 NM S QUADRANT
WINDS TO 25 KT. SEAS TO 8 FT.
.48 HOUR FORECAST LOW AND CONDITIONS DIMINISHED.

.LOW 64N167W 1007 MB MOVING NE 15 KT. OVER FORECAST WATERS
WITHIN 300 NM SE AND 240 NM NW SEMICIRCLES WINDS 20 TO 30 KT.
SEAS TO 11 FT.
.24 HOUR FORECAST LOW INLAND. N OF 60N BETWEEN 166W AND 170W
WINDS TO 25 KT. SEAS LESS THAN 8 FT.
.48 HOUR FORECAST LITTLE CHANGE.

.OVER FORECAST WATERS FROM 32N TO 37N BETWEEN 119W AND 124W AREA
OF NW WINDS 20 TO 30 KT. SEAS TO 9 FT.
.24 HOUR FORECAST FROM 32N TO 36N BETWEEN 121W AND 123W AREA OF
N TO NW WINDS TO 25 KT. SEAS 8 TO 13 FT.
.48 HOUR FORECAST FROM 31N TO 39N BETWEEN 118W AND 125W AREA OF
N TO NW WINDS 20 TO 30 KT. SEAS TO 10 FT.

.LOW W OF AREA 40N159E 1008 MB MOVING SE 15 KT. OVER FORECAST
WATERS N OF 37N AND W OF 163E WINDS 20 TO 30 KT. SEAS 9 TO 14 FT.
.24 HOUR FORECAST LOW 39N167E 1007 MB. WITHIN 300 NM S QUADRANT
WINDS TO 25 KT. SEAS TO 11 FT.
.48 HOUR FORECAST LOW 38N179E 1010 MB. WITHIN 300 NM S QUADRANT
WINDS TO 25 KT. SEAS TO 11 FT.

.48 HOUR FORECAST LOW 38N164E 1008 MB. WITHIN 300 NM S QUADRANT
WINDS TO 25 KT. SEAS TO 9 FT.

.DENSE FOG. VSBY OCCASIONALLY LESS THAN 1 NM FROM 40N TO 49N
BETWEEN 150W AND 174W.
.24 HOUR FORECAST DENSE FOG FROM 40N TO 54N BETWEEN 150W AND
172W.
.48 HOUR FORECAST DENSE FOG WITHIN 600 NM OF 49N153W.

.HIGH 39N149W 1031 MB MOVING NW 5 KT.
.24 HOUR FORECAST HIGH 41N150W 1032 MB.
.48 HOUR FORECAST HIGH 42N148W 1033 MB.

.HIGH 56N163W 1026 MB MOVING SE 30 KT.
.24 HOUR FORECAST HIGH 48N146W 1030 MB.
.48 HOUR FORECAST HIGH DISSIPATED.

.HIGH 53N172E 1024 MB MOVING NW 10 KT.
.24 HOUR FORECAST HIGH NW OF AREA.

.HIGH 32N163E 1020 MB MOVING SE 10 KT.
.24 HOUR FORECAST HIGH S OF AREA.

.FORECASTER CLARK. 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 SEP 19.
24 HOUR FORECAST VALID 1800 UTC WED SEP 20.
48 HOUR FORECAST VALID 1800 UTC THU SEP 21.

.WARNINGS.

.NONE.

.SYNOPSIS AND FORECAST.

.TROPICAL DEPRESSION NORMA NEAR 21.9N 115.0W 1006 MB AT 2100 UTC
SEP 19 MOVING WNW OR 290 DEG AT 6 KT. MAXIMUM SUSTAINED WINDS 30
KT GUSTS 40 KT. SEAS TO 12 FT WITHIN 75 NM NW SEMICIRCLE. WITHIN
120 NM NW AND 75 NM SE SEMICIRCLES WINDS 20 TO 30 KT. SEAS 8 TO
12 FT. ELSEWHERE FROM 18.5N TO 23N BETWEEN 113W AND 118W WINDS
20 KT OR LESS. SEAS TO 9 FT IN MIXED SWELL.
.24 HOUR FORECAST POST-TROPICAL REMNANT LOW NORMA NEAR 22.7N
116.1W. MAXIMUM SUSTAINED WINDS 20 KT GUSTS 30 KT. SEAS 8 TO 10
FT WITHIN 150 NM NW SEMICIRCLE.
.36 HOUR FORECAST POST-TROPICAL REMNANT LOW NORMA NEAR 23.2N
116.4W. MAXIMUM SUSTAINED WINDS 20 KT GUSTS 30 KT. SEAS 8 TO 9
FT WITHIN 150 NM NW SEMICIRCLE.
.48 HOUR FORECAST...DISSIPATED. CONDITIONS TO MERGE WITH AREA OF
NW SWELL DESCRIBED BELOW.

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

.POST-TROPICAL CYCLONE OTIS NEAR 18.6N 128.7W 1008 MB MOVING WSW
AT 5 KT. MAXIMUM SUSTAINED WINDS 30 KT GUSTS 40 KT. SEAS 12 FT
OR GREATER WITHIN 90 NM NW SEMICIRCLE WITH SEAS TO 13 FT. WITHIN
180 NM NW SEMICIRCLE NE TO E WINDS 20 TO 30 KT. SEAS 8 TO 12 FT.
ELSEWHERE FROM 17N TO 23N BETWEEN 125W AND 133W WINDS 20 KT OR
LESS. SEAS TO 9 FT IN MIXED SWELL.
.24 HOUR FORECAST POST-TROPICAL REMNANT LOW OTIS NEAR 17N
131.5W. WITHIN 180 NM N SEMICIRCLE WINDS 20 TO 25 KT. SEAS 8 TO
9 FT. FROM 16.5N TO 21.5N BETWEEN 130W AND 135W WINDS 20 KT OR
LESS. SEAS TO 8 FT IN MIXED SWELL.
.48 HOUR FORECAST...LOW DISSIPATED. FROM 15.5N TO 22N BETWEEN
131W AND 140W WINDS 20 KT OR LESS. SEAS TO 8 FT IN MIXED SWELL.

.FROM 10N TO 18N BETWEEN 132W AND 140W WINDS 20 KT OR LESS. SEAS
TO 9 FT IN MIXED SWELL.
.24 HOUR FORECAST FROM 15N TO 18N BETWEEN 136W AND 140W WINDS 20
KT OR LESS. SEAS TO 8 FT IN MIXED E AND SE SWELL.
.36 HOUR FORECAST WINDS 20 KT OR LESS. SEAS LESS THAN 8 FT.

.FROM 06N TO 10N BETWEEN 102W AND 108W WINDS 20 KT OR LESS. SEAS
TO 8 FT IN MIXED SE SWELL AND S WIND WAVES.
.24 HOUR FORECAST FROM 06N TO 10N BETWEEN 104W AND 115W WINDS 20
KT OR LESS. SEAS 8 FT IN MIXED SE SWELL AND S WIND WAVES.
.48 HOUR FORECAST FROM 05N TO 10N BETWEEN 108W AND 120W WINDS 20
KT OR LESS. SEAS TO 8 FT IN MIXED SE AND S SWELL.

.12 HOUR FORECAST N OF 28N W OF 127W WINDS 20 KT OR LESS. SEAS 8
TO 9 FT IN NW SWELL.
.24 HOUR FORECAST N OF LINE FROM 30N118W TO 24N132W TO 25N140W
WINDS 20 KT OR LESS. SEAS 8 TO 10 FT IN NW SWELL.
.48 HOUR FORECAST N OF 21N BETWEEN 116W AND 130W...AND FROM 16N
TO 25N BETWEEN 130W AND 140W WINDS 20 KT OR LESS. SEAS TO 9 FT
IN NW TO N SWELL.

.48 HOUR FORECAST FROM 10N TO 13N BETWEEN 100W AND 105W SW WINDS
20 TO 25 KT. SEAS TO 8 FT.

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

CONVECTION VALID AT 2115 UTC TUE SEP 19...

.TROPICAL DEPRESSION NORMA...WIDELY SCATTERED MODERATE
WITHIN 45 NM NW AND 75 NM SE SEMICIRCLES.

.TROPICAL WAVE ALONG 95W3/96W S OF 21N...SCATTERED MODERATE
TO STRONG FROM 10N TO 16N BETWEEN 92W AND 104W.

.INTERTROPICAL CONVERGENCE ZONE/MONSOON TROUGH...
MONSOON TROUGH FROM 10N85W TO 13N100W TO 12N120W TO 13N140W.
SCATTERED MODERATE FROM 03N TO 08N BETWEEN 77W AND 84W.
SCATTERED MODERATE TO STRONG FROM 07N TO 12N BETWEEN 87W AND
91W. SCATTERED MODERATE TO STRONG FROM 12N TO 16N W OF 132W.

.FORECASTER STRIPLING. NATIONAL HURRICANE CENTER.

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

SYNOPSIS VALID 1800 UTC SEP 19 2017.
24 HOUR FORECAST VALID 1800 UTC SEP 20 2017.
48 HOUR FORECAST VALID 1800 UTC SEP 21 2017.

.WARNINGS.

.NONE.

.SYNOPSIS AND FORECAST.

.LOW 10N168W 1009 MB MOVING NW SLOWLY. TROUGH FROM LOW TO
05N176W NEARLY STATIONARY. SCATTERED STRONG TSTMS WITHIN 120 NM
OF LOW. ISOLATED MODERATE TSTMS WITHIN 90 NM OF TROUGH.
.24 HOUR FORECAST LOW 12N170W 1011 MB. TROUGH FROM LOW TO
06N176W.
.48 HOUR FORECAST LOW DISSIPATED.

.FRONT 30N176W 26N179E 24N163E 24N160E MOVING SE SLOWLY E OF
178E AND NEARLY STATIONARY ELSEWHERE. ISOLATED MODERATE TSTMS
WITHIN 180 NM E OF FRONT E OF 180W.
.24 HOUR FORECAST WEAKENING FRONT 30N171W 23N178E 22N167E.
.48 HOUR FORECAST FRONT WEAKENED TO TROUGH 30N171W 25N179W
23N176E.

.TROUGH 11N162E 06N168E 02N169E MOVING SW SLOWLY. ISOLATED
MODERATE TSTMS WITHIN 180 NM OF TROUGH.
.24 HOUR FORECAST TROUGH 10N163E 02N166E.
.48 HOUR FORECAST TROUGH MOVED W OF FORECAST AREA.

.RIDGE 30N163E 26N168E NEARLY STATIONARY.

.RIDGE 30N160W 24N172W MOVING N SLOWLY.

.WINDS 20 KT OR LESS ENTIRE FORECAST AREA.

.SEAS 8 TO 10 FT N OF LINE 28N160E 25N166E 30N160W.
.24 HOUR FORECAST SEAS 8 TO 10 FT N OF LINE 23N160E 21N171E
30N175W.
.48 HOUR FORECAST SEAS DECREASED TO 8 FT OR LESS.

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

.MONSOON TROUGH 12N140W 12N158W 11N165W. ISOLATED MODERATE TSTMS
WITHIN 120 NM OF MONSOON TROUGH.

$$

.FORECASTER POWELL. HONOLULU HI.



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