High Seas Forecast
Issued by NWS

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940
FZPN02 KWBC 241725
HSFEPI

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SUPERSEDED BY NEXT ISSUANCE IN 6 HOURS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

.WARNINGS.

...GALE WARNING...
.COMPLEX LOW WITH MAIN LOW 48N173E 997 MB MOVING NE 25 KT.
WITHIN 480 NM S...780 NM E AND 720 NM NE QUADRANTS WINDS 20 TO
30 KT. SEAS TO 11 FT.
.06 HOUR FORECAST COMPLEX LOW WITH MAIN LOW 50N176E 997 MB. FROM
40N TO 48N BETWEEN 166W AND 175W WINDS 25 TO 35 KT. SEAS TO 12
FT.
.24 HOUR FORECAST COMPLEX LOW WITH MAIN LOW 55N177W 995 MB.
FRONT TO EXTEND FROM LOW TO 52N170W TO 50N166W TO 43N170W TO
40N175W.  WITHIN 300 NM NE AND E OF FRONT N OF 44N WINDS 25 TO
35 KT. SEAS 8 TO 15 FT. ELSEWHERE WITHIN 480 NM NE AND 840 NM SE
QUADRANTS WINDS 20 TO 30 KT. SEAS TO 12 FT.
.48 HOUR FORECAST LOW 58N180W 992 MB. FRONT TO EXTEND FROM LOW
TO 59N170W TO 56N156W TO 50N159W TO 42N165W. BETWEEN 240 NM AND
660 NM S QUADRANT AND 180 NM N OF FRONT W OF 161W...AND 180 NM E
OF FRONT S OF 57N WINDS TO 25 KT. SEAS TO 11 FT.

.SYNOPSIS AND FORECAST.

.BOGOSLOF VOLCANO AT 53.92N 168.03W IS IN A 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 54N144W 1009 MB MOVING E 10 KT. WITHIN 300 NM S AND 360 NM
SW...300 NM NW AND 360 NM NE QUADRANTS WINDS 20 TO 30 KT. SEAS
TO 12 FT.
.24 HOUR FORECAST LOW 56N139W 1011 MB. WITHIN 420 NM SW QUADRANT
WINDS TO 25 KT. SEAS TO 9 FT.
.48 HOUR FORECAST LOW DISSIPATED WITH ASSOCIATED CONDITIONS
DIMINISHED.

.LOW 34N131W 1011 MB MOVING NW 10 KT. WITHIN 360 NM E OF A LINE
FROM 46N129W TO 40N139W TO 34N143W AREA OF NE WINDS TO 25 KT.
SEAS TO 12 FT.
.24 HOUR FORECAST LOW 35N133W 1011 MB. WITHIN 600 NM W AND NW
QUADRANTS...AND 300 NM N OF A LINE FROM 40N133W TO 44N125W WINDS
TO 25 KT. SEAS TO 12 FT.
.48 HOUR FORECAST LOW DISSIPATED. WITHIN 300 NM NW OF A LINE
FROM 48N124W TO 36N134W WINDS TO 25 KT. SEAS TO 10 FT.

.24 HOUR FORECAST FROM 30N TO 35N E OF 122W WINDS TO 25 KT. SEAS
LESS THAN 8 FT.
.48 HOUR FORECAST FROM 30N TO 35N E OF 121W WINDS TO 25 KT. SEAS
TO 8 FT.

.DENSE FOG. VSBY OCCASIONALLY LESS THAN 1 NM FROM 36N TO 52N
BETWEEN 169W AND 171W AND N OF 58N BETWEEN 175W AND 178W.
.24 HOUR FORECAST DENSE FOG N OF 38N BETWEEN 180W AND 164W.
.48 HOUR FORECAST DENSE FOG WITHIN 420 NM W AND NW OF A LINE
FROM 50N153W TO 40N166W TO 34N170E TO 33N160E AND N OF 53N
BETWEEN 172E AND 178E.

.HIGH 44N158W 1034 MB MOVING E 15 KT.
.24 HOUR FORECAST HIGH 44N150W 1032 MB.
.48 HOUR FORECAST HIGH 43N147W 1031 MB.

.FORECASTER ROWLAND. 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 SAT JUN 24.
24 HOUR FORECAST VALID 1200 UTC SUN JUN 25.
48 HOUR FORECAST VALID 1200 UTC MON JUN 26.

.WARNINGS.

.NONE.

.SYNOPSIS AND FORECAST.

.LOW PRES NEAR 13N98W 1007 MB. WITHIN AREA BOUNDED BY 16N99W TO
16N96W TO 14N96W TO 14N99W TO 16N99W E WINDS 20 TO 25 KT. SEAS 8
FT.
.24 HOUR FORECAST LOW PRES...POSSIBLE TROPICAL CYCLONE...NEAR
15N101W 1006 MB. WITHIN AREA BOUNDED BY 16N102W TO 16N96W TO
14N96W TO 14N102W TO 16N102W SE WINDS 20 TO 30 KT. SEAS 8 TO 9
FT.
.48 HOUR FORECAST LOW PRES...POSSIBLE TROPICAL CYCLONE...NEAR
17N105W. WITHIN AREA BOUNDED BY 19N107W TO 19N103W TO 15N103W TO
15N107W TO 19N107W...INCLUDING CABO CORRIENTES... NE TO E WINDS
20 TO 30 KT. SEAS 8 TO 10 FT.

.WITHIN AREA BOUNDED BY 30N140W TO 30N128W TO 24N128W TO 24N140W
TO 30N140W WINDS 20 KT OR LESS. SEAS 8 TO 9 FT IN NE SWELL.
.24 HOUR FORECAST WITHIN AREA BOUNDED BY 30N140W TO 30N137W TO
28N137W TO 28N140W TO 30N140W WINDS 20 KT OR LESS. SEAS 8 FT IN
NE SWELL.
.48 HOUR FORECAST WITHIN AREA BOUNDED BY 30N140W TO 30N138W TO
29N138W TO 29N140W TO 30N140W WINDS 20 KT OR LESS. SEAS 8 FT IN
NE SWELL.

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

CONVECTION VALID AT 1500 UTC SAT JUN 24...

.INTERTROPICAL CONVERGENCE ZONE/MONSOON TROUGH...
MONSOON TROF FROM 09N79W TO DEVELOPING LOW PRESSURE
NEAR 13N98W TO 10N105W TO 10N130W. ITCZ FROM 10N130W TO BEYOND
08N140W. SCATTERED MODERATE TO ISOLATED STRONG FROM 07N TO 16N
BETWEEN 95W AND 105W. SCATTERED MODERATE WITHIN 60 NM S OF THE
MONSOON TROUGH BETWEEN 105W AND 125W...AND W OF 135W.

.FORECASTER CHRISTENSEN. NATIONAL HURRICANE CENTER.

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

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

.WARNINGS.

.NONE.

.SYNOPSIS AND FORECAST.

.ITCZ 07N140W 05N150W 06N170W 06N180E 03N160E. SCATTERED
MODERATE TO STRONG TSTMS WITHIN 120 NM OF ITCZ E OF 155W AND W
OF 173E. ISOLATED TSTMS ELSEWHERE WITHIN 200 NM N OF ITCZ.

.RIDGE 30N165E 29N160E NEARLY STATIONARY.

.SEAS 8 TO 9 FT NE OF LINE 28N140W 30N142W.
.24 HOUR FORECAST SEAS 8 TO 9 FT NE OF LINE 28N140W 30N145W.
.48 HOUR FORECAST SEAS 8 FT OR LESS.

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

.ISOLATED MODERATE TSTMS FROM 08N TO 12N BETWEEN 179E AND 172E.

$$

.FORECASTER MORRISON. HONOLULU HI.



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