High Seas Forecast
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000
FZPN02 KWBC 251725
HSFEPI

HIGH SEAS FORECAST FOR METAREA XII
NWS OCEAN PREDICTION CENTER WASHINGTON DC
1745 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SUPERSEDED BY NEXT ISSUANCE IN 6 HOURS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 1200 UTC SEP 25.
24 HOUR FORECAST VALID 1200 UTC SEP 26.
48 HOUR FORECAST VALID 1200 UTC SEP 27.

.WARNINGS.

...GALE WARNING...
.LOW 48N158W 996 MB MOVING NE 20 KT. BETWEEN 180 NM AND 480 NM
SW QUADRANT AND WITHIN 240 NM NW QUADRANT WINDS 25 TO 35 KT.
SEAS 8 TO 14 FT. ELSEWHERE WITHIN 960 NM S SEMICIRCLE...AND 480
NM NW AND 660 NM NE QUADRANTS WINDS TO 25 KT. SEAS TO 10 FT.
.24 HOUR FORECAST LOW 54N152W 992 MB. WITHIN 240 NM N OF A LINE
FROM LOW CENTER TO 56N145W TO 55N134W WINDS 25 TO 40 KT. SEAS TO
12 FT. ELSEWHERE WITHIN 240 NM NW...540 NM NE...960 NM SE AND
840 NM SW QUADRANTS WINDS TO 25 KT. SEAS TO 10 FT.
.48 HOUR FORECAST LOW 54N154W 988 MB. WITHIN 180 NM S SEMICIRCLE
AND W QUADRANT WINDS 25 TO 40 KT. SEAS TO 12 FT. ELSEWHERE
WITHIN 720 NM NW...480 NM NE...360 NM SE AND 900 NM SW QUADRANTS
WINDS TO 25 KT. SEAS TO 9 FT.

...GALE WARNING...
.LOW 36N166E 1004 MB MOVING NE 10 KT. WITHIN 360 NM N SEMICIRCLE
WINDS 25 TO 40 KT. SEAS 9 TO 18 FT. ELSEWHERE FROM 30N TO 44N W
OF 177E WINDS TO 25 KT. SEAS TO 12 FT.
.24 HOUR FORECAST LOW 37N172E 1006 MB. WITHIN 420 NM N
SEMICIRCLE WINDS 25 TO 40 KT. SEAS 10 TO 17 FT. ELSEWHERE FROM
30N TO 44N W OF 173W WINDS TO 25 KT. SEAS TO 10 FT.
.48 HOUR FORECAST LOW 37N178E 1004 MB. WITHIN 420 NM N
SEMICIRCLE AND 300 NM SE QUADRANT WINDS 25 TO 40 KT. SEAS 10 TO
18 FT. ELSEWHEERE FROM 30N TO 44N W OF 165W WINDS TO 25 KT. SEAS
TO 10 FT.

...GALE WARNING...
.24 HOUR FORECAST FROM 30N TO 40N BETWEEN 140W AND 157W SW WINDS
20 TO 30 KT. SEAS TO 10 FT.
.48 HOUR FORECAST NEW LOW 45N139W 1006 MB. FRONT TO EXTEND FROM
57N140W TO 54N136W TO LOW CENTER TO 40N141W TO 34N148W. WITHIN
180 NM E OF THE FRONT WINDS 25 TO 35 KT. SEAS 8 TO 13 FT.
ELSEWHERE WITHIN 300 NM E OF THE FRONT WINDS TO 25 KT. SEAS TO 9
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 32N TO 43N BETWEEN 123W AND 129W N TO NW WINDS 20 TO 30
KT. SEAS TO 9 FT.
.24 HOUR FORECAST FROM 30N TO 44N BETWEEN 122W AND 131W N WINDS
20 TO 30 KT. SEAS TO 11 FT.
.48 HOUR FORECAST FROM 34N TO 45N BETWEEN 125W AND 130W N TO NE
WINDS TO 25 KT. SEAS TO 9 FT.

.LOW 53N131W 1010 MB DRIFTING SE. WITHIN 540 NM S SEMICIRCLE
WINDS TO 25 KT. SEAS TO 9 FT.
.24 HOUR FORECAST LOW DISSIPATED AND CONDITIONS DIMINISHED.

.LOW 58N161W 1001 MB MOVING SW 10 KT. WITHIN 120 NM E
SEMICIRCLE...AND 540 NM NW AND 420 NM SW QUADRANTS WINDS 20 TO
30 KT. SEAS TO 9 FT.
.24 HOUR FORECAST LOW 54N163W 1004 MB. WITHIN 660 NM NW AND 420
NM SW QUADRANTS WINDS TO 25 KT. SEAS TO 8 FT.
.48 HOUR FORECAST LOW AND CONDITIONS ABSORBED BY LOW 54N154W
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 1200 UTC MON SEP 25.
24 HOUR FORECAST VALID 1200 UTC TUE SEP 26.
48 HOUR FORECAST VALID 1200 UTC WED SEP 27.

.WARNINGS.

.NONE.

.SYNOPSIS AND FORECAST.

.TROPICAL DEPRESSION PILAR NEAR 22.8N 107.0W 1004 MB AT 1500 UTC
SEP 25 MOVING NNW OR 335 DEG AT 6 KT. MAXIMUM SUSTAINED WINDS 30
KT GUSTS 40 KT. WITHIN 60 NM E SEMICIRCLE WINDS 20 TO 30 KT.
SEAS 8 TO 10 FT. ELSEWHERE WITHIN AREA BOUNDED BY 20N106W TO
18N106W TO 22N109W TO 24N108W TO 24N107W TO 22N106W TO 20N106W...
INCLUDING CABO CORRIENTES...WINDS 20 KT OR LESS. SEAS 8 FT IN S
TO SW SWELL.
.12 HOUR FORECAST POST-TROPICAL REMNANT LOW PILAR NEAR 23.4N
107.3W. MAXIMUM SUSTAINED WINDS 25 KT GUSTS 35 KT. WITHIN 45 NM
NE SEMICIRCLE WINDS 20 TO 25 KT. SEAS 8 TO 9 FT. ELSEWHERE WITHIN
AREA BOUNDED BY 24N109W TO 24N107W TO 21N105W TO 21N109W TO
24N109W WINDS 20 KT OR LESS. SEAS 8 TO 9 FT IN S TO SW SWELL.
.24 HOUR FORECAST...DISSIPATED.

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

.LOW PRES NEAR 13.5N126W 1008 MB. WITHIN AREA BOUNDED BY
12N120W TO 10N121W TO 09N131W TO 12N128W TO 16N133W TO 17N122W TO
12N120W WINDS 20 TO 25 KT. SEAS 8 TO 10 FT.
.24 HOUR FORECAST LOW PRES NEAR 14.5N121W 1009 MB. WITHIN AREA
BOUNDED BY 11N117W TO 09N126W TO 10N130W TO 13N129W TO 17N122W TO
13N116W TO 11N117W WINDS 20 TO 25 KT. SEAS 8 TO 10 FT.
.48 HOUR FORECAST LOW PRES NEAR 14N117W 1010 MB. WITHIN AREA
BOUNDED BY 10N115W TO 09N122W TO 10N125W TO 12N122W TO 14N117W TO
13N115W TO 10N115W WINDS 20 KT OR LESS. SEAS 8 TO 9 FT IN MIXED
SW AND NW SWELL.

.WITHIN AREA BOUNDED BY 10N97W TO 08N103W TO 09N113W TO 11N111W
TO 13N102W TO 12N97W TO 10N97W WINDS 20 KT OR LESS. SEAS 8 TO 9
FT IN S TO SW SWELL.
.24 HOUR FORECAST WITHIN AREA BOUNDED BY 10N99W TO 09N103W TO
10N106W TO 11N105W TO 13N98W TO 12N98W TO 10N99W WINDS 20 KT OR
LESS. SEAS TO 8 FT IN MIXED SE AND SW SWELL.
.36 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 1400 UTC MON SEP 25...

.TROPICAL DEPRESSION PILAR...SCATTERED MODERATE WITHIN 120 NM NE
SEMICIRCLE...0 NM S QUADRANT AND 60 NM W QUADRANT.

.LOW PRES NEAR 13.5N126W...SCATTERED MODERATE ISOLATED STRONG
FROM 12N TO 14.5N BETWEEN 120W AND 127W.

.INTERTROPICAL CONVERGENCE ZONE/MONSOON TROUGH...
MONSOON TROUGH AXIS EXTENDS FROM 10N75W TO 18N86W TO LOW PRES
NEAR 14N92W TO 16N98W TO 15N115W TO LOW PRES NEAR 13.5N126W TO
11N135W TO 11N140W. SCATTERED MODERATE ISOLATED STRONG FROM 01N
TO 03N E OF 81W...WITHIN 180 NM SW OF A LINE FROM 07N86W TO
09N89W TO 13N90W TO 16N97W...FROM 11N TO 13N BETWEEN 99W AND
106W...AND WITHIN 120-180 NM S OF AXIS BETWEEN 128W AND 140W.

.FORECASTER LEWITSKY. NATIONAL HURRICANE CENTER.

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

SYNOPSIS VALID 1200 UTC SEP 25 2017.
24 HOUR FORECAST VALID 1200 UTC SEP 26 2017.
48 HOUR FORECAST VALID 1200 UTC SEP 27 2017.

.WARNINGS.

.NONE.

.SYNOPSIS AND FORECAST.

.LOW 12N145W 1011 MB MOVING W SLOWLY. ISOLATED MODERATE TSTMS
WITHIN 120 NM OF LOW.
.24 HOUR FORECAST LOW 12N146W 1011 MB.
.48 HOUR FORECAST LOW DISSIPATED.

.FRONT FROM 30N167W TO 26N175W TO 26N179E MOVING ESE 10 KT.
ISOLATED MODERATE TSTMS WITHIN 90 NM OF FRONT N OF 28N.
.24 HOUR FORECAST FRONT FROM 30N160W TO 26N175W.
.48 HOUR FORECAST FRONT FROM 30N153W TO 27N165W.

.FRONT 30N162E TO 29N160E MOVING ESE SLOWLY.
.24 HOUR FORECAST FRONT NEAR 30N160E. WINDS SW 20 TO 25 KT N OF
28N W OF 163W.
.48 HOUR FORECAST FRONT FROM 30N167E TO 27N160E. WINDS
DIMINISHED TO 20 KT OR LESS.

.TROUGH FROM 27N152W TO 21N154W MOVING E 10 KT. ISOLATED
MODERATE TSTMS WITHIN 90 NM OF TROUGH.
.24 HOUR FORECAST TROUGH FROM 26N156W TO 20N154W DISSIPATING.
.48 HOUR FORECAST TROUGH DISSIPATED.

TROUGH FROM 22N150W TO 15N149W MOVING E 10 KT. ISOLATED MODERATE
TSTMS WITHIN 120 NM E OF TROUGH N OF 20N.
.24 HOUR FORECAST TROUGH 21N152W TO 16N152W.
.48 HOUR FORECAST TROUGH DISSIPATED.

.TROUGH FROM 13N170W TO 06N160E MOVING W 10 KT. SCATTERED
MODERATE TO STORNG TSTMS WITHIN 150 NM OF TROUGH.
.24 HOUR FORECAST TROUGH FROM 11N172W TO 09N160E DISSIPATING.
.48 HOUR FORECAST TROUGH DISSIPATED.

.HIGH 28N175E 1016 MB MOVING SE SLOWLY. RIDGE FROM HIGH TO
25N160E NEARLY STATIONARY.
.24 HOUR FORECAST HIGH 27N177E 1017 MB.
.48 HOUR FORECAST HIGH 28N172E 1018 MB.

.RIDGE FROM 30N152W TO 25N177W MOVING SE SLOWLY.

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

.ISOLATED MODERATE TSTMS FROM 16N TO 18N BETWEEN 171W AND 174W.

.MONSOON TROUGH FROM 11N140W TO 11N160W. ISOLATED MODERATE TSTMS
WITHIN 120 NM OF MONSOON TROUGH.

$$

.FORECASTER MORRISON. HONOLULU HI.



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