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National Weather Service Marine Forecast FZPN40 PHFO

FZPN40 PHFO 240342
HSFNP

HIGH SEAS FORECAST
NATIONAL WEATHER SERVICE HONOLULU HI
0500 UTC FRI FEB 24 2017

SUPERSEDED BY NEXT ISSUANCE IN 6 HOURS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.

THIS HIGH SEAS FORECAST USES 1-MINUTE AVERAGE WINDS WHICH MAY BE
HIGHER THAN 10-MINUTE AVERAGE WINDS.

SECURITE

NORTH PACIFIC EQUATOR TO 30N BETWEEN 140W AND 160E

SYNOPSIS VALID 0000 UTC FEB 24 2017.
24 HOUR FORECAST VALID 0000 UTC FEB 25 2017.
48 HOUR FORECAST VALID 0000 UTC FEB 26 2017.

.WARNINGS.

.NONE.

.SYNOPSIS AND FORECAST.

.FRONT FROM 30N171W TO 22N176E TO 20N169E. FRONT MOVING E 15 KT N
OF 27N...NEARLY STATIONARY ELSEWHERE. NE WINDS 20 TO 25 KT WITHIN
180 NM N OF FRONT. ISOLATED MODERATE TSTMS WITHIN 180 NM SE OF
FRONT E OF 176E.
.24 HOUR FORECAST FRONT FROM 30N163W TO 28N167W TO 25N178E. NE
WINDS 20 TO 25 KT WITHIN 180 NM N OF FRONT E OF 179W.
.48 HOUR FORECAST FRONT FROM 30N159W TO 27N161W TO 25N169W. S TO
SW WINDS 20 TO 25 KT WITHIN 180 NM E OF FRONT N OF 28N.

.FRONT FROM 30N145W TO 27N149W TO 26N155W MOVING SE 10 KT.
.24 HOUR FORECAST FRONT FROM 30N140W TO 26N144W TO 25N148W.
.48 HOUR FORECAST FRONT MOVED E OF AREA AND MERGED WITH TROUGH
DESCRIBED BELOW.

.TROUGH FROM 26N144W TO 21N144W TO 15N146W MOVING E 10 KT.
SCATTERED MODERATE TSTMS WITHIN 240 NM E OF TROUGH N OF 17N.
.24 HOUR FORECAST TROUGH FROM 28N142W TO 19N143W TO 13N146W.
.48 HOUR FORECAST TROUGH FROM 20N140W TO 17N141W.

.NE TO E WINDS 20 TO 25 KT FROM 10N TO 17N BETWEEN 154W AND
178W...FROM 06N TO 14N BETWEEN 178W AND 170E...AND FROM 06N TO
10N W OF 170E.
.24 HOUR FORECAST NE TO E WINDS 20 TO 25 KT FROM 10N TO 15N
BETWEEN 168W AND 178E...AND FROM 06N TO 13N W OF 178E.
.48 HOUR FORECAST NE TO E WINDS 20 TO 25 KT FROM 06N TO 14N W OF
167E.

.HIGH 30N163W 1026 MB MOVING SE 10 KT. RIDGE FROM HIGH TO
25N174W.
.24 HOUR FORECAST HIGH 28N161W 1021 MB.
.48 HOUR FORECAST HIGH 27N151W 1019 MB.

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

.SEAS 12 TO 14 FT N OF A LINE FROM 30N171W TO 23N178E TO 23N173E.
SEAS 8 TO 12 FT ELSEWHERE N OF A LINE FROM 30N140W TO 06N158W TO
02N178E TO 12N160E.
.24 HOUR FORECAST SEAS 8 TO 11 FT N OF A LINE FROM 17N140W TO
02N176E TO 05N160E.
.48 HOUR FORECAST SEAS 8 TO 10 FT N OF A LINE FROM 28N140W TO
06N172W TO 04N160E.

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

.ITCZ FROM 08N145W TO 05N155W TO 06N165W TO 02N179E. ISOLATED
MODERATE TSTMS WITHIN 90 NM OF ITCZ.

SCATTERED MODERATE TSTMS FROM 03N TO 07N W OF 170E
AND FROM 02N
TO 05N BETWEEN 170E AND 179E.



.FORECASTER BRAVENDER. HONOLULU HI.