High Seas Forecast
Issued by NWS

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000
FZPN02 KWBC 252325
HSFEPI

HIGH SEAS FORECAST FOR METAREA XII
NWS OCEAN PREDICTION CENTER WASHINGTON DC
2345 UTC THU MAY 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SUPERSEDED BY NEXT ISSUANCE IN 6 HOURS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 MAY 25.
24 HOUR FORECAST VALID 1800 UTC MAY 26.
48 HOUR FORECAST VALID 1800 UTC MAY 27.

.WARNINGS.

...GALE WARNING...
.LOW 53N176W 1015 MB MOVING E 20 KT. WITHIN 360 NM S AND SE
QUADRANTS WINDS 25 TO 35 KT. SEAS 8 TO 12 FT. ELSEWHERE WITHIN
420 NM S AND SE QUADRANTS WINDS 20 TO 30 KT. SEAS TO 10 FT.
.24 HOUR FORECAST LOW 54N161W 1009 MB. WITHIN 420 NM S AND 240
NM SE QUADRANTS WINDS 20 TO 30 KT. SEAS TO 9 FT.
.48 HOUR FORECAST LOW 53N158W 1003 MB. WITHIN 480 NM E AND NE
QUADRANTS WINDS TO 25 KT. SEAS TO 8 FT.

...GALE WARNING...
.FROM 35N TO 43N W OF 168E WINDS TO 25 KT. SEAS LESS THAN 8 FT.
.24 HOUR FORECAST LOW 48N168E 1004 MB. FROM 40N TO 46N BETWEEN
165E AND 176W WINDS 25 TO 35 KT. SEAS TO 10 FT. ELSEWHERE FROM
39N TO 48N W OF 170W WINDS 20 TO 30 KT. SEAS TO 9 FT.
.48 HOUR FORECAST LOW 50N177E 995 MB. WITHIN 240 NM NE QUADRANT
WINDS 25 TO 35 KT. SEAS TO 8 FT. ELSEWHERE FROM 37N TO 45N
BETWEEN 170W AND 169E...AND WITHIN 360 NM SW AND 360 NM NE
QUADRANTS WINDS 20 TO 30 KT. SEAS TO 12 FT.

...GALE WARNING...
.48 HOUR FORECAST NEW LOW 44N162W 1002 MB. WITHIN 360 NM S AND
420 NM SW QUADRANTS E OF 170W WINDS 25 TO 35 KT. SEAS TO 11 FT.

.SYNOPSIS AND FORECAST.

.BOGOSLOF VOLCANO AT 54N168W 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.

.FROM 37N TO 54N BETWEEN 124W AND 134W AREA OF N WINDS 20 TO 30
KT. SEAS 8 TO 14 FT.
.24 HOUR FORECAST FROM 47N TO 54N BETWEEN 127W AND 133W AREA OF
N WINDS TO 25 KT. SEAS TO 9 FT.
.48 HOUR FORECAST CONDITIONS DIMINISHED.

.LOW INLAND 61N163W 1009 MB MOVING E 20 KT. WITHIN 240 NM S AND
SW QUADRANTS WINDS TO 25 KT. SEAS TO 10 FT.
.12 HOUR FORECAST LOW WELL INLAND WITH CONDITIONS DIMINISHED.

.LOW 67N169W 1000 MB DRIFTING N. OVER ICE FREE WATERS WITHIN 180
NM SW QUADRANT WINDS TO 25 KT. SEAS LESS THAN 8 FT.
.24 HOUR FORECAST LOW N OF FORECAST AREA.

.24 HOUR FORECAST LOW 62N171W 1005 MB. WITHIN 240 NM E AND SE
QUADRANTS WINDS TO 25 KT. SEAS LESS THAN 8 FT.
.48 HOUR FORECAST LOW 63N167W 1011 MB WITH CONDITIONS
DIMINISHED.
.DENSE FOG. VSBY OCCASIONALLY LESS THAN 1 NM FROM 33N TO 51N W
OF 176E.
.24 HOUR FORECAST DENSE FOG W OF A LINE FROM 34N160E TO 44N173W
TO 47N172W TO 53N165E.
.48 HOUR FORECAST DENSE FOG FROM 34N TO 51N W OF 167W.

.HIGH 47N145W 1030 MB MOVING NE 15 KT.
.24 HOUR FORECAST HIGH 50N140W 1027 MB.
.48 HOUR FORECAST HIGH DISSIPATED.

.HIGH 43N174W 1038 MB MOVING S 15 KT.
.24 HOUR FORECAST HIGH 37N172W 1032 MB.
.48 HOUR FORECAST HIGH 33N180W 1025 MB.

.48 HOUR FORECAST NEW HIGH 58N138W 1025 MB.

.48 HOUR FORECAST NEW HIGH 34N131W 1023 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 1800 UTC THU MAY 25.
24 HOUR FORECAST VALID 1800 UTC FRI MAY 26.
48 HOUR FORECAST VALID 1800 UTC SAT MAY 27.

.WARNINGS.

.NONE.

.SYNOPSIS AND FORECAST.

.GULF OF CALIFORNIA TROUGH FROM 31.5N113.5W TO 30.5N114W TO
30N115W. WITHIN 60 NM SE OF TROUGH S TO SW WINDS 20 TO 30 KT.
SEAS LESS THAN 8 FT.
.18 HOUR FORECAST LITTLE CHANGE...EXCEPT SEAS TO 8 FT.
.24 HOUR FORECAST WINDS 20 KT OR LESS. SEAS LESS THAN 8 FT.

.LOW PRES NEAR 13N101W 1008 MB. WITHIN 60 NM SE QUADRANT OF LOW
WINDS 20 KT OR LESS. SEAS 8 FT IN SW SWELL.
.18 HOUR FORECAST LOW PRES DISSIPATED. WINDS 20 KT OR LESS. SEAS
LESS THAN 8 FT.

.WITHIN AREA BOUNDED BY 03.4S96W TO 03.4S120W TO 01N115W TO
02S108W TO 03.4S96W WINDS 20 KT OR LESS. SEAS 8 FT IN MIXED SE
AND NW SWELL.
.24 HOUR FORECAST S OF 01S BETWEEN 110W AND 120W WINDS 20 KT OR
LESS. SEAS 8 FT IN MIXED SE AND SW SWELL.
.48 HOUR FORECAST S OF 02S BETWEEN 105W AND 120W WINDS 20 KT OR
LESS. SEAS 8 TO 9 FT IN MIXED SE AND SW SWELL.

.12 HOUR FORECAST N OF 29N BETWEEN 126W AND 132W WINDS 20 KT OR
LESS. SEAS 8 FT IN NW TO N SWELL.
.24 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 2115 UTC THU MAY 25...

.LOW PRES NEAR 13N101W...SCATTERED MODERATE ISOLATED STRONG
WITHIN 120 NM SE QUADRANT.

.SCATTERED MODERATE WITHIN 30 NM OF 11N104.5W.

.INTERTROPICAL CONVERGENCE ZONE/MONSOON TROUGH...
MONSOON TROUGH AXIS EXTENDS FROM 10N85W TO 11N95W TO A 1008 MB
LOW NEAR 13N101W TO 10N110W TO 10N120W TO 09N130W. ITCZ AXIS
EXTENDS FROM 09N130W TO 07N140W. SCATTERED MODERATE TO STRONG
FROM 03N TO 09N BETWEEN 79W AND 84W. SCATTERED MODERATE ISOLATED
STRONG FROM 06N TO 10N BETWEEN 88W AND 92W...AND WITHIN 180 NM S
OF AXIS BETWEEN 110W AND 114W. SCATTERED MODERATE WITHIN 60 NM S
OF AXIS BETWEEN 115W AND 118W.

.FORECASTER AGUIRRE. NATIONAL HURRICANE CENTER.

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

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

.WARNINGS.

.NONE.

.SYNOPSIS AND FORECAST.

.TROUGH 27N169E 21N169E MOVING W 15 KT.
.24 HOUR FORECAST TROUGH 27N163E TO 22N161E.
.36 HOUR FORECAST TROUGH MOVED W OF FORECAST AREA.

.WEAKENING FRONT 30N148W TO 25N151W. N END MOVG E SLOWLY. REST
OF FRONT NEARLY STATIONARY.
.24 HOUR FORECAST WEAKENING FRONT 30N146W TO 26N150W TO 23N153W.
.48 HOUR FORECAST TROUGH 30N144W TO 25N150W TO 23N153W.

.TROUGH 26N144W TO 20145W NEARLY STATIONARY.
.24 HOUR FORECAST TROUGH 28N146W TO 22N147W.
.48 HOUR FORECAST TROUGH DISSIPATED.

.WINDS E 20 TO 25 KT SEAS 8 TO 9 FT BETWEEN 169E AND 170W N OF
20N.
.24 HOUR FORECAST WINDS E 20 TO 25 KT SEAS 8 TO 9 FT BETWEEN
169E AND 175W N OF 20N.
.48 HOUR FORECAST WINDS DIMINISHED TO 20 KT OR LESS. SEAS
LOWERED TO 8 FT OR LESS.

.WINDS 20 KT OR LESS OVER REST OF FORECAST AREA.

.SEAS 8 FT OR LESS REST OF FORECAST AREA.

.SCATTERED MODERATE TSTMS BETWEEN 180W AND 176E FROM 27N TO 22N.

.ITCZ 08N140W 08N153W 04N170W 03N178E 03N160E. ISOLATED STRONG
TSTMS WITHIN 150 NM N OF ITCZ BETWEEN 180W AND 168W. CATTERED
MODERATE TSTMS WITHIN 200 NM N OF ITCZ W OF 180W.SCATTERED
MODERATE TSTMS WITHIN 150 NM EITHER SIDE OF ITCZ E OF 145W.

$$

.FORECASTER LAU. HONOLULU HI.


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