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 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SUPERSEDED BY NEXT ISSUANCE IN 6 HOURS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 1200 UTC MAY 25.
24 HOUR FORECAST VALID 1200 UTC MAY 26.
48 HOUR FORECAST VALID 1200 UTC MAY 27.

.WARNINGS.

...GALE WARNING...
.FROM 38N TO 43N BETWEEN 124W AND 128W AREA OF N WINDS 25 TO 35
KT. SEAS 10 TO 17 FT. ELSEWHERE FROM 36N TO 54N BETWEEN 124W AND
135W AREA OF N WINDS 20 TO 30 KT. SEAS 8 TO 15 FT.
.24 HOUR FORECAST FROM 48N TO 54N BETWEEN 128W AND 134W AREA OF
NW TO N WINDS TO 25 KT. SEAS TO 10 FT.
.48 HOUR FORECAST CONDITIONS DIMINISHED.

...GALE WARNING...
.LOW 53N176E 1018 MB MOVING E 20 KT. WITHIN 300 NM S AND SE
QUADRANTS WINDS 25 TO 35 KT. SEAS 8 TO 11 FT.
.24 HOUR FORECAST LOW 53N165W 1010 MB. WITHIN 360 NM S AND 240
NM SE QUADRANTS WINDS 20 TO 30 KT. SEAS 8 TO 10 FT.
.48 HOUR FORECAST LOW 52N159W 1004 MB. WITHIN 360 NM SE...240 NM
NE...AND 240 NM NW QUADRANTS WINDS TO 25 KT. SEAS TO 8 FT.

...GALE WARNING...
.24 HOUR FORECAST LOW 47N163E 1008 MB. WITHIN 540 NM S AND SE
QUADRANTS WINDS 20 TO 30 KT. SEAS TO 8 FT.
.48 HOUR FORECAST LOW 49N175E 997 MB. WITHIN 480 NM S QUADRANT
WINDS 25 TO 35 KT. SEAS 8 TO 12 FT. ELSEWHERE WITHIN 720 NM S
AND 360 NM NE QUADRANTS WINDS 20 TO 30 KT. SEAS TO 10 FT.

...GALE WARNING...
.48 HOUR FORECAST NEW LOW 1006 MB. WITHIN 300 NM S AND 420 NM SW
QUADRANTS WINDS 25 TO 35 KT. SEAS TO 9 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.

.LOW 60N166W 1007 MB MOVING E 20 KT. WITHIN 300 NM S AND SW
QUADRANTS WINDS 20 TO 30 KT. SEAS TO 10 FT.
.12 HOUR FORECAST LOW DISSIPATED INLAND WITH CONDITIONS
DIMINISHED.

.LOW 67N169W 998 MB DRIFTING W. OVER ICE FREE FORECAST WATERS
WITHIN 240 NM S QUADRANT WINDS TO 25 KT. SEAS LESS THAN 8 FT.
.24 HOUR FORECAST LOW NW OF FORECAST AREA WITH CONDITIONS
DESCRIBED BELOW WITH LOW 63N172W.

.24 HOUR FORECAST LOW 63N172W 1004 MB. WITHIN 180 NM S AND SE
QUADRANTS WINDS TO 25 KT. SEAS LESS THAN 8 FT.
.48 HOUR FORECAST LOW 65N168W 1010 MB WITH CONDITIONS
DIMINISHED.
.DENSE FOG. VSBY OCCASIONALLY LESS THAN 1 NM FROM 33N TO 51N W
OF 174E.
.24 HOUR FORECAST DENSE FOG W OF 177W FROM 35N TO 52N.
.48 HOUR FORECAST DENSE FOG WITHIN AN AREA BOUNDED BY 34N160E TO
42N163W TO 46N164W TO 55N171E.

.HIGH 48N144W 1033 MB DRIFTING NE.
.24 HOUR FORECAST HIGH 49N141W 1026 MB.
.48 HOUR FORECAST HIGH 54N138W 1024 MB.

.HIGH 43N177W 1039 MB MOVING S 15 KT.
.24 HOUR FORECAST HIGH 38N176W 1034 MB.
.48 HOUR FORECAST HIGH 34N177W 1027 MB.

.48 HOUR FORECAST NEW HIGH 59N139W 1025 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 THU MAY 25.
24 HOUR FORECAST VALID 1200 UTC FRI MAY 26.
48 HOUR FORECAST VALID 1200 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.
.24 HOUR FORECAST LITTLE CHANGE...EXCEPT SEAS TO 8 FT.
.48 HOUR FORECAST WINDS 20 KT OR LESS. SEAS LESS THAN 8 FT.

.LOW PRES NEAR 13N101W 1008 MB. FROM 10N TO 13N BETWEEN 98W AND
103W SW TO W WINDS 20 TO 25 KT. SEAS 8 TO 10 FT.
.12 HOUR FORECAST LOW PRES NEAR 14N100W 1009 MB. WINDS 20 KT OR
LESS. SEAS LESS THAN 8 FT.

.WITHIN AREA BOUNDED BY 03.4S96W TO 03.4S120W TO 00N115W TO
01S111W TO 00N107W TO 03.4S96W WINDS 20 KT OR LESS. SEAS 8 TO 9
FT IN MIXED SE AND NW SWELL.
.24 HOUR FORECAST WITHIN AREA BOUNDED BY 03.4S94W TO 03.4S120W
TO 01S120W TO 02S111W TO 02S108W TO 03S99W TO 03.4S94W WINDS 20
KT OR LESS. SEAS 8 FT IN MIXED SE AND SW SWELL.
.48 HOUR FORECAST WITHIN AREA BOUNDED BY 03.4S101W TO 03.4S120W
TO 01S120W TO 01N112W TO 00N105W TO 03.4S101W WINDS 20 KT OR
LESS. SEAS 8 TO 9 FT IN MIXED SE AND SW SWELL.

.12 HOUR FORECAST WITHIN AREA BOUNDED BY 29N129W TO 29N131W TO
30N134.5W TO 30N126W TO 29N129W WINDS 20 KT OR LESS. SEAS 8 FT IN
MIXED NW AND N SWELL.
.24 HOUR FORECAST WITHIN AREA BOUNDED BY 29.5N126W TO
29.5N128.5W TO 29.5N130W TO 30N133.5W TO 30N125.5W TO 29.5N126W
WINDS 20 KT OR LESS. SEAS 8 FT IN MIXED NW TO N 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 1500 UTC THU MAY 25...

.LOW PRES NEAR 13N101W...SCATTERED MODERATE ISOLATED STRONG
WITHIN 300 NM OF CENTER...EXCEPT 420 NM NE QUADRANT.

.INTERTROPICAL CONVERGENCE ZONE/MONSOON TROUGH...
MONSOON TROUGH AXIS EXTENDS FROM 08N102W TO 15N95W TO LOW PRES
NEAR 13N101W TO 08N115W TO 09N132W. ITCZ AXIS EXTENDS FROM
09N132W TO 07N140W. SCATTERED MODERATE TO STRONG FROM 03N TO 09N
E OF 80W. SCATTERED MODERATE ISOLATED STRONG FROM 05N TO 08N
BETWEEN 85W AND 91W AND FROM 06N TO 10N BETWEEN 118W AND 129W.
SCATTERED MODERATE FROM 06N TO 08N BETWEEN 134W AND 138W.

.FORECASTER LEWITSKY. NATIONAL HURRICANE CENTER.

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

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

.WARNINGS.

.NONE.

.SYNOPSIS AND FORECAST.

.TROUGH 23N172E 18N173E MOVING W 10 KT. SEE WINDS AND SEAS
BELOW. ISOLATED MODERATE TSTMS WITHIN 180 NM E OF TROUGH N OF
21N.
.24 HOUR FORECAST TROUGH DISSIPATED. SEE WINDS AND SEAS BELOW.

.TROUGH 30N149W 24N152W NEARLY STATIONARY.
.24 HOUR FORECAST TROUGH 30N148W 24N152W.
.48 HOUR FORECAST TROUGH 30N145W 23N155W.

.NE TO E WINDS 20 TO 25 KT N OF 21N BETWEEN 160W AND 170E.
.24 HOUR FORECAST NE TO E WINDS 20 TO 25 KT N OF 24N BETWEEN
165W AND 165E.
.48 HOUR FORECAST NE TO E WINDS 20 TO 25 KT N OF 20N BETWEEN
168W AND 170E.

.RIDGE 30N168E 26N160E MOVING N 10 KT.

.24 HOUR FORECAST NEW TROUGH 30N147W 24N152W.
.48 HOUR FORECAST TROUGH 30N146W 27N149W 22N154W.

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

.SEAS 8 TO 10 FT FROM 18N TO 29N BETWEEN 169W AND 172E.
.24 HOUR FORECAST SEAS 8 TO 9 FT N OF 19N BETWEEN 170W AND 167E.
.48 HOUR FORECAST SEAS 8 TO 9 FT FROM 21N TO 27N BETWEEN 172W
AND 171E.

.SEAS 8 FT OR LESS OVER REST OF FORECAST AREA.

.ITCZ 07N140W 07N153W 04N163W 05N178E 02N160E. SCATTERED
MODERATE TSTMS WITHIN 120 NM OF ITCZ W OF 164E...FROM 175W TO
179E...AND E OF 163W.

$$

.FORECASTER POWELL. HONOLULU HI.


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