High Seas Forecast
Issued by NWS

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000
FZPN02 KWBC 230525
HSFEPI

HIGH SEAS FORECAST FOR METAREA XII
NWS OCEAN PREDICTION CENTER WASHINGTON DC
0545 UTC TUE MAY 23 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SUPERSEDED BY NEXT ISSUANCE IN 6 HOURS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 0000 UTC MAY 23.
24 HOUR FORECAST VALID 0000 UTC MAY 24.
48 HOUR FORECAST VALID 0000 UTC MAY 25.

.WARNINGS.

...GALE WARNING...
.LOW JUST NW OF AREA 57N174E 992 MB MOVING NE 15 KT. OVER
FORECAST WATERS WITHIN 720 NM SE AND 480 NM SW QUADRANTS WINDS
25 TO 35 KT. SEAS 8 TO 14 FT.
.24 HOUR FORECAST LOW 62N176W 995 MB. WITHIN 300 NM S QUADRANT
WINDS 20 TO 30 KT. SEAS 8 TO 12 FT.
.48 HOUR FORECAST LOW 62N171W 1000 MB. WITHIN 600 NM SE AND 720
NM SW QUADRANTS WINDS 20 TO 30 KT. SEAS TO 11 FT.

...GALE WARNING...
.LOW 45N172E 1013 MB MOVING NE 40 KT. WITHIN 240 NM SE OF A
FRONT FROM 49N179E TO LOW CENTER TO 42N169E WINDS 25 TO 35 KT.
SEAS TO 11 FT.
.24 HOUR FORECAST LOW 57N167W 1007 MB. WITHIN AN AREA BOUNDED BY
A LINE FROM 56N152W TO 53N168W TO 42N178W TO 56N152W WINDS 25 TO
35 KT. SEAS 9 TO 15 FT.
.48 HOUR FORECAST LOW INLAND 66N163W 997 MB. OVER FORECAST
WATERS WITHIN 300 NM E AND NE OF A FRONT TO EXTEND FROM 59N152W
TO 53N155W TO 48N160W WINDS 20 TO 30 KT. SEAS 8 TO 12 FT.

...GALE WARNING...
.LOW 55N145W 1010 MB MOVING E 15 KT. OVER FORECAST WATERS WITHIN
540 NM SW QUADRANT WINDS 20 TO 30 KT. SEAS TO 10 FT.
.12 HOUR FORECAST LOW 55N138W 1010 MB. BETWEEN 120 NM AND 480 NM
SW QUADRANT WINDS 25 TO 35 KT. SEAS 8 TO 12 FT.
.24 HOUR FORECAST LOW DISSIPATED. N OF 47N AND E OF 140W AREA OF
W TO NW WINDS 25 TO 35 KT. SEAS TO 13 FT.
.48 HOUR FORECAST N OF 45N AND E OF 133W AREA OF N TO NW WINDS
25 TO 35 KT. SEAS 8 TO 13 FT.

...GALE WARNING...
.OVER FORECAST WATERS WITHIN 240 NM SE OF A LINE FROM 48N126W TO
39N132W AREA OF N WINDS TO 25 KT. SEAS TO 8 FT.
.24 HOUR FORECAST FROM 38N TO 45N BETWEEN 124W AND 132W AREA OF
N WINDS 25 TO 35 KT. SEAS TO 12 FT.
.48 HOUR FORECAST FROM 37N TO 44N BETWEEN 125W AND 133W AREA OF
N TO NE WINDS 25 TO 40 KT. SEAS 10 TO 17 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.

.OVER FORECAST WATERS N OF A LINE FROM 47N160E TO 49N170E AREA
OF W TO SW WINDS 20 TO 30 KT. SEAS TO 9 FT.
.24 HOUR FORECAST FROM 47N TO 54N BETWEEN 174W AND 169E AREA OF
W TO SW WINDS 20 TO 30 FT. SEAS TO 11 FT.
.48 HOUR FORECAST CONDITIONS DESCRIBED WITH LOW 62N171W IN
WARNINGS SECTION ABOVE.

.24 HOUR FORECAST FROM 35N TO 43N BETWEEN 140W AND 151W AREA OF
N TO NE WINDS 20 TO 30 KT. SEAS TO 9 FT.
.48 HOUR FORECAST CONDITIONS DIMINISHED.

.48 HOUR FORECAST OVER FORECAST WATERS FROM 45N TO 52N W OF 174E
AREA OF S TO SW WINDS 20 TO 30 KT. SEAS TO 10 FT.

.DENSE FOG. VSBY OCCASIONALLY LESS THAN 1 NM FROM 46N TO 56N
BETWEEN 131W AND 144W AND WITHIN 240 NM SE OF A LINE FROM
49N174W TO 40N164E.
.24 HOUR FORECAST DENSE FOG WITHIN 300 NM SE OF A LINE FROM
54N166W TO 45N177W AND WITHIN 180 NM SE OF A LINE FROM 44N178W
TO 39N173E.
.48 HOUR FORECAST DENSE FOG WITHIN 180 NM SE OF A LINE FROM
37N168E TO 33N163E AND OVER FORECAST WATERS W OF A LINE FROM
51N169E TO 41N161E.

.HIGH 40N135W 1027 MB DRIFTING SW.
.24 HOUR FORECAST HIGH DISSIPATED.

.HIGH 40N165W 1037 MB MOVING NE 30 KT.
.24 HOUR FORECAST HIGH 46N152W 1041 MB.
.48 HOUR FORECAST HIGH 48N145W 1037 MB.

.24 HOUR FORECAST HIGH 43N168E 1030 MB.
.48 HOUR FORECAST HIGH 43N176E 1039 MB.

.48 HOUR FORECAST NEW HIGH 39N166E 1025 MB.

.FORECASTER BELL. 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 0000 UTC TUE MAY 23.
24 HOUR FORECAST VALID 0000 UTC WED MAY 24.
48 HOUR FORECAST VALID 0000 UTC THU MAY 25.

.WARNINGS.

.NONE.

.SYNOPSIS AND FORECAST.

.S OF 02S BETWEEN 97W AND 117W WINDS 20 KT OR LESS. SEAS 8 FT IN
MIXED SE AND SW SWELL.
.24 HOUR FORECAST S OF 01S W OF 100W WINDS 20 KT OR LESS. SEAS
TO 9 FT IN MIXED SE AND SW SWELL.
.48 HOUR FORECAST S OF 01S BETWEEN 101W AND 118W WINDS 20 KT OR
LESS. SEAS TO 9 FT IN MIXED SE AND SW SWELL.

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

CONVECTION VALID AT 0200 UTC TUE MAY 23...

.INTERTROPICAL CONVERGENCE ZONE/MONSOON TROUGH...
MONSOON TROUGH FROM 08N77W TO 11N92W TO 08N109W. ITCZ FROM
08N109W TO 06N140W. SCATTERED MODERATE ISOLATED STRONG WITHIN 60
NM OF AXIS BETWEEN 120W AND 138W.

.FORECASTER MUNDELL. NATIONAL HURRICANE CENTER.

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

SYNOPSIS VALID 0000 UTC MAY 23 2017.
24 HOUR FORECAST VALID 0000 UTC MAY 24 2017.
48 HOUR FORECAST VALID 0000 UTC MAY 25 2017.

.WARNINGS.

.NONE.

.SYNOPSIS AND FORECAST.

.FRONT 30N147W 27N150W 20N172W THENCE SHEAR LINE TO 23N160W
19N175W. FRONT AND SHEAR LINE NEARLY STATIONARY AND DISSIPATING.
NE WINDS 20 TO 25 KT BOUNDED BY 28N150W 18N175W 23N179W 28N165W
28N150W.
.24 HOUR FORECAST SHEAR LINE 24N157W 21N177W. NE WINDS 20 TO 25
KT BOUNDED BY 27N165W 24N157W 21N177W 27N165W.
.48 HOUR FORECAST SHEAR LINE DISSIPATED. E WINDS 20 TO 25 KT
FROM 25N TO 22N BETWEEN 165W AND 170W AND FROM 25N TO 21N
BETWEEN 180W AND 175E.

.FRONT 30N165E 27N162E 26N160E MOVING N 10 KT.
.24 HOUR FORECAST FRONT 30N167E 28N162E 28N160E.
.48 HOUR FORECAST FRONT MOVED N OF AREA.

.ITCZ 06N140W 02N170W 03N160E. ISOLATED MODERATE TSTMS FROM 08N
TO 02N W OF 170E.

.RIDGE 30N175E 26N165E MOVING NE 15 KT.

.SEAS 8 TO 10 FT NE OF LINE 30N148W 18N175W 24N178E 30N166W AND
FROM 13N TO 06N BETWEEN 178W AND 170E.
.24 HOUR FORECAST SEAS 8 TO 9 FT BOUNDED BY 30N165W 28N148W
06N180W 23N175W 30N165W.
.48 HOUR FORECAST SEAS 8 TO 9 FT FROM 19N TO 10N BETWEEN 162W
AND 174E.

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

$$
.HONOLULU FORECASTER.



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