High Seas Forecast
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000
FZPN02 KWBC 302325
HSFEPI

HIGH SEAS FORECAST FOR METAREA XII
NWS OCEAN PREDICTION CENTER WASHINGTON DC
2345 UTC SUN APR 30 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SUPERSEDED BY NEXT ISSUANCE IN 6 HOURS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 APR 30.
24 HOUR FORECAST VALID 1800 UTC MAY 01.
48 HOUR FORECAST VALID 1800 UTC MAY 02.

.WARNINGS.

...GALE WARNING...
.COMPLEX LOW WITH FIRST CENTER 55N177W 988 MB MOVING SE 20 KT
AND SECOND CENTER 56N164W 992 MB DRIFTING SW. BETWEEN 480 NM AND
840 NM SE QUADRANT...AND WITHIN 480 NM SW AND 360 NM NW QUADRANT
OF FIRST CENTER...AND WITHIN 300 NM NE QUADRANT OF SECOND CENTER
WINDS 25 TO 35 KT. SEAS 10 TO 22 FT. ELSEWHERE WITHIN 720 NM
NE...1200 NM SE AND 720 NM SW QUADRANTS OF FIRST CENTER WINDS TO
25 KT. SEAS 8 TO 14 FT.
.24 HOUR FORECAST COMPLEX LOW WITH FIRST CENTER 55N168W 995 MB
AND SECOND CENTER 51N167W 995 MB. FROM 56N TO 60N BETWEEN 138W
AND 147W WINDS 25 TO 40 KT. SEAS 8 TO 13 FT. ELSEWHERE WITHIN
840 NM E SEMICIRCLE...AND 480 NM NW...840 NM NE AND 960 NM SW
QUADRANTS OF FIRST CENTER WINDS TO 25 KT. SEAS 8 TO 15 FT.
.48 HOUR FORECAST LOW 52N159W 997 MB. WITHIN 960 NM SE AND 780
NM NW QUADRANTS WINDS 20 TO 30 KT. SEAS 8 TO 16 FT.

...GALE WARNING...
.LOW 38N173E 1007 MB MOVING NE 50 KT. WITHIN 300 NM SE QUADRANT
WINDS 25 TO 35 KT. SEAS 8 TO 13 FT. ELSEWHERE WITHIN 300 NM N
AND 600 NM S SEMICIRCLES WINDS TO 25 KT. SEAS TO 12 FT.
.24 HOUR FORECAST LOW 41N158W 1002 MB. WITHIN 240 NM SE AND 540
NM SW QUADRANTS WINDS 25 TO 35 KT. SEAS 8 TO 16 FT. ELSEWHERE
WITHIN 240 NM NW...420 NM NE...480 NM SE AND 1140 NM SW
QUADRANTS WINDS TO 25 KT. SEAS TO 12 FT.
.48 HOUR FORECAST LOW 51N147W 974 MB. WITHIN 240 NM NW...600 NM
NE...720 NM SE AND 360 NM SW QUADRANTS WINDS 25 TO 40 KT. SEAS
10 TO 21 FT. ELSEWHERE WITHIN 1140 NM S SEMICIRCLE AND 480 NM NW
QUADRANT WINDS TO 25 KT. SEAS 8 TO 16 FT.

.SYNOPSIS AND FORECAST.

.FROM 30N TO 42N BETWEEN 119W AND 132W N TO NW WINDS 20 TO 30
KT. SEAS TO 10 FT.
.24 HOUR FORECAST FROM 30N TO 42N BETWEEN 119W AND 130W N TO NW
WINDS 20 TO 30 KT. SEAS TO 12 FT.
.48 HOUR FORECAST FROM 30N TO 41N BETWEEN 119W AND 130W N TO NW
WINDS 20 TO 30 KT. SEAS TO 12 FT.

.LOW 44N145W 1018 MB MOVING NE 20 KT. WINDS LESS THAN 25 KT.
SEAS LESS THAN 8 FT.
.24 HOUR FORECAST LOW 47N132W 1016 MB. WITHIN 180 NM N AND 360
NM S SEMICIRCLES WINDS 20 TO 30 KT. SEAS TO 8 FT.
.48 HOUR FORECAST LOW DISSIPATED AND CONDITIONS DIMINISHED.

.FROM 30N TO 33N BETWEEN 147W AND 166W WINDS TO 25 KT. SEAS TO
12 FT.
.24 HOUR FORECAST CONDITIONS MOVED S OF AREA.

.48 HOUR FORECAST FROM 30N TO 34N BETWEEN 160W AND 177W NE WINDS
TO 25 KT. SEAS TO 9 FT.

.48 HOUR FORECAST LOW NW OF AREA NEAR 53N164E 1001 MB. OVER
FORECAST WATERS WITHIN 420 NM NE AND 780 NM SE QUADRANTS WINDS
20 TO 30 KT. SEAS TO 9 FT.

.DENSE FOG. VSBY OCCASIONALLY LESS THAN 1 NM WITHIN 300 NM SE OF
A LINE FROM 34N156W TO 45N144W AND WITHIN 240 NM SE OF A LINE
FROM 31N161E TO 37N165E TO 37N174W.
.24 HOUR FORECAST DENSE FOG WITHIN 480 NM SE OF A LINE FROM
34N160W TO 46N142W.
.48 HOUR FORECAST DENSE FOG WITHIN 240 NM SE OF A LINE FROM
35N154W TO 45N140W AND FROM 45N TO 53N BETWEEN 126W AND 143W AND
FROM 31N TO 35N BETWEEN 169E AND 162E AND FROM 40N TO 53N W OF
169E.

.HIGH 45N131W 1034 MB MOVING NE 20 KT.
.24 HOUR FORECAST HIGH DISSIPATED.

.HIGH 35N134W 1034 MB NEARLY STATIONARY.
.24 HOUR FORECAST LITTLE CHANGE.
.48 HOUR FORECAST LITTLE CHANGE.

.HIGH 39N170W 1020 MB MOVING NE 20 KT.
.24 HOUR FORECAST HIGH DISSIPATED.

.HIGH 41N162E 1020 MB MOVING SE 20 KT.
.24 HOUR FORECAST HIGH 40N172E 1030 MB.
.48 HOUR FORECAST HIGH 41N179E 1030 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 1800 UTC SUN APR 30.
24 HOUR FORECAST VALID 1800 UTC MON MAY 01.
48 HOUR FORECAST VALID 1800 UTC TUE MAY 02.

.WARNINGS.

.NONE.

.SYNOPSIS AND FORECAST.

.N OF 25N BETWEEN 124W AND 131W WINDS 20 KT OR LESS. SEAS 8 FT
IN MIXED SW AND NW SWELL.
.24 HOUR FORECAST N OF 28N BETWEEN 124W AND 128W WINDS 20 KT OR
LESS. SEAS 8 FT IN MIXED SW AND NW SWELL.
.48 HOUR FORECAST N OF 28N BETWEEN 124W AND 130W WINDS 20 KT OR
LESS. SEAS 8 FT IN MIXED SW AND NW SWELL.

.S OF 02S BETWEEN 108W AND 120W WINDS 20 KT OR LESS. SEAS TO 8
FT IN SW SWELL.
.24 HOUR FORECAST S OF LINE FROM 01N121W TO 09N117W TO 04N108W
TO 03.4S94W WINDS 20 KT OR LESS. SEAS 8 FT IN SW SWELL.
.48 HOUR FORECAST S OF 09N BETWEEN 98W AND 106W WINDS 20 KT OR
LESS. SEAS TO 8 FT IN SW SWELL.

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

CONVECTION VALID AT 2115 UTC SUN APR 30...

.SCATTERED MODERATE ISOLATED STRONG FROM 04N TO 10N BETWEEN
77W AND 84W.

.INTERTROPICAL CONVERGENCE ZONE/MONSOON TROUGH...
SURFACE TROUGH AXIS EXTENDS FROM 10N84W TO 08N98W TO 07N106W TO
04N116W. ITCZ AXIS EXTENDS FROM 04N116W TO 03N125W TO 04N133W TO
04N140W. SCATTERED MODERATE TO STRONG FROM 04N TO 08N BETWEEN
84W AND 90W. SCATTERED STRONG WITHIN 240 NM N OF TROUGH AXIS
BETWEEN 97W AND 101W...WITHIN 120 NM N OF THE AXIS BETWEEN 101W
AND 105W AND WITHIN 120 NM N AND 60 NM S OF THE AXIS BETWEEN
112W AND 118W. SCATTERED MODERATE ISOLATED STRONG WITHIN 60 NM
OF THE TROUGH AXIS BETWEEN 105W AND 107W. SCATTERED MODERATE
WITHIN 60 NM S OF THE ITCZ AXIS BETWEEN 123W AND 127W.

.FORECASTER AGUIRRE. NATIONAL HURRICANE CENTER.

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

SYNOPSIS VALID 1800 UTC APR 30 2017.
24 HOUR FORECAST VALID 1800 UTC MAY 01 2017.
48 HOUR FORECAST VALID 1800 UTC MAY 02 2017.

.WARNINGS.

.NONE.

.SYNOPSIS AND FORECAST.

.LOW 23N162W 1012 MB MOVING SW 10 KT. FRONT 30N158W TO LOW
NEARLY STATIONARY AND WEAKENING. SECOND FRONT FROM 24N155W
17N160W 14N168W NEARLY STATIONARY AND WEAKENING. WINDS 20 TO 30
KT FROM 21N TO 28N BETWEEN 162W AND 172W. ISOLATED MODERATE
TSTMS FROM 18N TO 24N BETWEEN 149W AND 155W.
.24 HOUR FORECAST LOW 18N167W 1013 MB DISSIPATING. FRONT
WEAKENED TO A TROUGH 30N156W 20N164W TO LOW TO 12N162W. WINDS
DIMINISHED TO 20 KT OR LESS.
.48 HOUR FORECAST LOW DISSIPATED. TROUGH 30N158W 23N164W
17N165W.

.FRONT 30N162E 28N160E NEARLY STATIONARY AND DISSIPATING OVER
FORECAST AREA. ISOLATED MODERATE TSTMS WITHIN 60 NM OF FRONT.
.24 HOUR FORECAST FRONT DISSIPATED OVER FORECAST AREA.
.48 HOUR FORECAST NEW FRONT 30N167W 27N178W. NE WINDS 20 TO 25
KT N OF 28N BETWEEN 166W AND 175W.

.HIGH 29N174W 1023 MB MOVING SW 10 KT. RIDGE FROM HIGH TO
26N170E 24N160E MOVING NW SLOWLY.
.24 HOUR FORECAST HIGH 28N178E 1022 MB DISSIPATING.
.48 HOUR FORECAST HIGH DISSIPATED.

.NE TO E WINDS 20 TO 25 KT FROM 12N TO 20N BETWEEN 165E AND
162W.
.24 HOUR FORECAST NE TO E WINDS 20 TO 25 KT FROM 14N TO 20N
BETWEEN 164E AND 178E.
.48 HOUR FORECAST NE TO E WINDS WINDS 20 TO 25 KT FROM 14N TO
20N BETWEEN 165E AND 178E.

.WINDS 20 KT OR LESS REST OF AREA.

.SEAS 8 TO 12 FT N OF 20N BETWEEN 160W AND 170W. SEAS 8 TO 9 FT
FROM 09N TO 19N BETWEEN 163E AND 174W.
.24 HOUR FORECAST SEAS 8 TO 10 FT FROM 19N TO 23N BETWEEN 169W
AND 174W.
.48 HOUR FORECAST SEAS 8 TO 9 FT N OF 29N BETWEEN 165W AND 172W.

.SEAS 8 FT OR LOWER REST OF AREA.

.ISOLATED MODERATE TSTMS S OF 06N BETWEEN 163W AND 176W AND FROM
03N TO 05N BETWEEN 171E AND 180E.

$$

.FORECASTER BURKE. HONOLULU HI.


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