High Seas Forecast
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FZPN02 KWBC 262325
HSFEPI

HIGH SEAS FORECAST FOR METAREA XII
NWS OCEAN PREDICTION CENTER WASHINGTON DC
2345 UTC WED APR 26 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SUPERSEDED BY NEXT ISSUANCE IN 6 HOURS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 26.
24 HOUR FORECAST VALID 1800 UTC APR 27.
48 HOUR FORECAST VALID 1800 UTC APR 28.

.WARNINGS.

...STORM WARNING...
.LOW W OF AREA 42N148E 1002 MB MOVING NE 30 KT AND RAPIDLY
INTENSIFYING. OVER FORECAST WATERS FROM 40N TO 46N W OF 162E
WINDS TO 25 KT. SEAS LESS THAN 8 FT.
.12 HOUR FORECAST LOW W OF AREA 46N156E 992 MB AND SECONDARY LOW
W OF AREA 37N151E 992 MB. FROM 30N TO 50N BETWEEN 165E AND 160E
WINDS 25 TO 35 KT. SEAS TO 12 FT.
.24 HOUR FORECAST LOW W OF AREA 52N159E 974 MB AND SECONDARY LOW
44N160E 984 MB. FROM 35N TO 45N BETWEEN 165E AND 160E WINDS 35
TO 50 KT. SEAS 14 TO 24 FT. ELSEWHERE OVER FORECAST WATERS FROM
30N TO 55N W OF 170E WINDS 25 TO 40 KT. SEAS 8 TO 18 FT.
.48 HOUR FORECAST MERGED LOW W OF AREA 53N163E 970 MB. FORECAST
FRONT FROM 56N172E TO 53N180W TO 46N180W THEN SW TO 33N160E.
WITHIN 600 NM S AND SE QUADRANTS AND 360 NM E OF THE FRONT WINDS
25 TO 40 KT. SEAS 12 TO 22 FT...EXCEPT E OF THE FRONT 9 TO 18 FT.

...GALE WARNING...
.LOW 54N133W 994 MB MOVING N 10 KT. WITHIN 360 NM S AND 180 NM E
QUADRANTS WINDS 25 TO 35 KT. SEAS 8 TO 15 FT.
.24 HOUR FORECAST LOW DISSIPATED INLAND AND ASSOCIATED
CONDITIONS DIMINISHED.

...GALE WARNING...
.LOW 56N138W 995 MB MOVING NW 10 KT WILL STALL AND TURN E AFTER
12 HOURS. WITHIN 360 NM SW QUADRANT WINDS 20 TO 30 KT. SEAS TO
11 FT.
.24 HOUR FORECAST LOW 57N138W 1004 MB. WITHIN 240 NM S AND 90 NM
NE SEMICIRCLES WINDS 25 TO 35 KT. SEAS 8 TO 15 FT.
.48 HOUR FORECAST LOW DISSIPATED AND CONDITIONS DIMINISHED.

...GALE WARNING...
.FROM 30N TO 35N BETWEEN 119W AND 124W WINDS 20 TO 30 KT. SEAS
TO 12 FT.
.24 HOUR FORECAST FROM 30N TO 40N BETWEEN 117W AND 126W WINDS 25
TO 35 KT. SEAS 8 TO 13 FT.
.48 HOUR FORECAST FROM 30N TO 40N BETWEEN 118W AND 126W WINDS 20
TO 30 KT. SEAS 8 TO 15 FT.

.SYNOPSIS AND FORECAST.

.LOW 54N175W 992 MB MOVING NE 10 KT. WITHIN 960 NM S AND SW
QUADRANTS WINDS TO 25 KT. SEAS TO 11 FT.
.24 HOUR FORECAST LOW 55N167W 1002 MB. WITHIN 600 NM SW QUADRANT
WINDS TO 25 KT. SEAS TO 9 FT.
.48 HOUR FORECAST LOW 56N165W 1010 MB. WINDS LESS THAN 25 KT.
SEAS LESS THAN 8 FT.

.LOW 46N161W 1006 MB MOVING NE 20 KT. WITHIN 360 NM S QUADRANT
WINDS 20 TO 30 KT. SEAS TO 9 FT.
.24 HOUR FORECAST LOW 52N149W 1012 MB. WINDS LESS THAN 25 KT.
SEAS LESS THAN 8 FT.
.48 HOUR FORECAST LOW DISSIPATED.

.48 HOUR FORECAST LOW 45N145W 1015 MB. WITHIN 360 NM E AND SE
QUADRANTS WINDS TO 25 KT. SEAS LESS THAN 8 FT.

.48 HOUR FORECAST LOW 35N153W 1014 MB. FROM 30N TO 38N BETWEEN
146W AND 160W WINDS TO 25 KT. SEAS TO 9 FT.

.DENSE FOG. VSBY OCCASIONALLY LESS THAN 1 NM WITHIN 300 NM S OF
A LINE FROM 44N139W TO 42N150W TO 36N160W.
.24 HOUR FORECAST DENSE FOG FROM 38N TO 44N BETWEEN 132W AND
150W...AND FROM 40N TO 51N BETWEEN 170E AND 160E.
.48 HOUR FORECAST DENSE FOG WITHIN 360 NM OF 43N143W...AND
WITHIN 300 NM E OF A LINE FROM 48N178E TO 38N170E.

.HIGH 32N139W 1029 MB MOVING N 05 KT.
.24 HOUR FORECAST HIGH 34N138W 1029 MB.
.48 HOUR FORECAST HIGH 37N135W 1029 MB.

.HIGH 34N166E 1029 MB MOVING NE 20 KT.
.24 HOUR FORECAST HIGH 36N177E 1030 MB.
.48 HOUR FORECAST HIGH 35N173W 1031 MB.

.24 HOUR FORECAST NEW HIGH 46N138W 1024 MB.
.48 HOUR FORECAST HIGH 48N131W 1030 MB.

.24 HOUR FORECAST NEW HIGH 44N154W 1021 MB.
.48 HOUR FORECAST HIGH DISSIPATED.

.FORECASTER COLLINS. 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 WED APR 26.
24 HOUR FORECAST VALID 1800 UTC THU APR 27.
48 HOUR FORECAST VALID 1800 UTC FRI APR 28.

.WARNINGS.

.NONE.

.SYNOPSIS AND FORECAST.

.N OF 29N BETWEEN 117W AND 122W NW TO N WINDS 20 TO 25 KT. SEAS
10 TO 11 FT. ELSEWHERE N OF 20N BETWEEN 114W AND 125W WINDS 20
KT OR LESS. SEAS 8 TO 10 FT IN NW SWELL.
.06 HOUR FORECAST N OF 29N BETWEEN 120W AND 123W NW WINDS 20 TO
25 KT. SEAS 8 TO 10 FT. ELSEWHERE N OF 24N BETWEEN 115W AND 124W
WINDS 20 KT OR LESS. SEAS TO 9 FT IN NW SWELL.
.24 HOUR FORECAST N OF 28N BETWEEN 117W AND 124W NW TO N WINDS
20 TO 25 KT. SEAS 9 TO 12 FT. ELSEWHERE N OF 23N BETWEEN 115W
AND 129W WINDS 20 KT OR LESS. SEAS 8 TO 10 FT IN NW SWELL.
.48 HOUR FORECAST N OF 27.5N BETWEEN 118W AND 125W NW TO N WINDS
20 TO 25 KT. SEAS 10 TO 13 FT IN NW SWELL. ELSEWHERE N OF 23N
BETWEEN 115W AND 129W WINDS 20 KT OR LESS. SEAS 8 TO 10 FT
PRIMARILY IN NW SWELL.

.FROM 06N TO 17N W OF 121W WINDS 20 KT OR LESS. SEAS TO 9 FT IN
MIXED NE AND NW SWELL.
.24 HOUR FORECAST FROM 08N TO 24N W OF 135W AND FROM 08N TO 11N
BETWEEN 128W AND WINDS 20 KT OR LESS. SEAS TO 8 FT IN MIXED NE
AND NW SWELL.
.48 HOUR FORECAST FROM 07N TO 21N W OF 136W WINDS 20 KT OR LESS.
SEAS TO 8 FT IN MIXED SWELL.

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

CONVECTION VALID AT 2115 UTC WED APR 26...

.SCATTERED MODERATE FROM 04N TO 07N BETWEEN 78W AND 80W.

.INTERTROPICAL CONVERGENCE ZONE/MONSOON TROUGH...
TROUGH AXIS EXTENDS FROM 07N80W TO 07N89W TO 05N95W TO 07N101W.
ITCZ AXIS EXTENDS FROM 07N101W TO 06N112W TO 05N122W TO 05N131W
TO 03N140W. A SOUTHERN HEMISHPERIC ITCZ AXIS EXTENDS FROM
03.4S107.5W TO 03.4S120W. SCATTERED STRONG WITHIN 90 NM N OF
AXIS BETWEEN 103W AND 105W AND WITHIN 120 NM S OF AXIS BETWEEN
110W AND 113W. SCATTERED MODERATE ISOLATED STRONG WITHIN 120 NM
S OF AXIS BETWEEN 85W AND 90W AND 180 NM N OF AXIS BETWEEN 126W
AND 131W. SCATTERED MODERATE WITHIN 120 NM S OF AXIS BETWEEN 80W
AND 85W AND WITHIN 60 NM OF AXIS BETWEEN 134W AND 140W.

.FORECASTER AGUIRRE. NATIONAL HURRICANE CENTER.

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

SYNOPSIS VALID 1800 UTC APR 26 2017.
24 HOUR FORECAST VALID 1800 UTC APR 27 2017.
48 HOUR FORECAST VALID 1800 UTC APR 28 2017.

.WARNINGS.

.NONE.

.SYNOPSIS AND FORECAST.

.FRONT 30N168W TO 21N175E TO 19N160E. FRONT MOVING E 10 KT E OF
175E AND NEARLY STATIONARY ELSEWHERE. NE TO E WINDS 20 TO 25 KT
BETWEEN FRONT AND 26N W OF 179E.
.24 HOUR FORECAST FRONT 30N162W TO 24N169W TO 21N178W TO
20N170E. NE TO E WINDS 20 TO 25 KT WITHIN 480 NM N OF FRONT.
.48 HOUR FORECAST FRONT 30N153W TO 27N154W TO 21N162W TO
17N179E. N TO NE WINDS 20 TO 25 KT N OF FRONT E OF 165W. NE TO E
WINDS 20 TO 25 KT BETWEEN FRONT AND 25N W OF 165W...AND
ELSEWHERE FROM 11N TO 22N BETWEEN 174W AND 172E.

.12 HOUR FORECAST S TO SE WINDS 20 TO 25 KT N OF 27N AND W OF
163E.
.24 HOUR FORECAST S TO SE WINDS 20 TO 25 KT N OF 29N AND W OF
163E.
.48 HOUR FORECAST WINDS DIMINISHED TO 20 KT OR LESS.

.RIDGE 30N157W TO 23N171W MOVING E SLOWLY AND ERODING FROM THE
W.

.OTHERWISE WINDS 20 KT OR LESS OVER REMAINDER OF AREA.

.SEAS 8 TO 9 FT W OF A LINE FROM 23N171E TO 19N164E.
.24 HOUR FORECAST SEAS 8 TO 10 FT W OF A LINE FROM 26N173W TO
21N176W TO 18N173E.
.48 HOUR FORECAST SEAS 8 TO 10 FT FROM 13N TO 23N BETWEEN 170E
AND 179E...AND WITHIN AREA FROM 23N179E TO 25N162W TO 13N179E TO
23N179E.

.OTHERWISE SEAS 8 FT OR LESS OVER REMAINDER OF AREA.

.ISOLATED MODERATE TSTMS S OF 03N W OF 168E. ISOLATED TSTMS FROM
06N TO 09N BETWEEN 152W AND 163W...AND FROM 09N TO 12N BETWEEN
167W AND 173W.

$$

.FORECASTER BRAVENDER. HONOLULU HI.



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