High Seas Forecast
Issued by NWS

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000
FZPN40 PHFO 252235
HSFNP

HIGH SEAS FORECAST
NATIONAL WEATHER SERVICE HONOLULU HI
2300 UTC SAT FEB 25 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SUPERSEDED BY NEXT ISSUANCE IN 6 HOURS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 1800 UTC FEB 25 2017.
24 HOUR FORECAST VALID 1800 UTC FEB 26 2017.
48 HOUR FORECAST VALID 1800 UTC FEB 27 2017.

.WARNINGS.

.NONE.

.SYNOPSIS AND FORECAST.

.FRONT FROM 30N159W TO 26N164W TO 25N172W MOVING SE SLOWLY.
ISOLATED TSTMS WITHIN 60 NM E OF FRONT E OF 165W.
.24 HOUR FORECAST WEAKENING FRONT FROM 30N158W TO 25N162W TO
24N166W.
.48 HOUR FORECAST FRONT WEAKENED TO TROUGH FROM 30N161W TO
25N164W.

.TROUGH FROM 28N176W TO 26N178W TO 23N179W NEARLY STATIONARY. .24
HOUR FORECAST LITTLE CHANGE. .48 HOUR FORECAST NEW LOW 25N176W
1013 MB.

.TROUGH FROM 27N173E TO 22N170E NEARLY STATIONARY. ISOLATED TSTMS
WITHIN 120 NM E OF TROUGH.
.24 HOUR FORECAST WEAKENING TROUGH FROM 27N171E TO 24N174E.
.48 HOUR FORECAST TROUGH DISSIPATED.

.24 HOUR FORECAST FRONT FROM 30N164E TO 29N160E MOVING E 15 KT.
.48 HOUR FORECAST FRONT 30N172E TO 27N160E.

.HIGH 27N153W 1020 MB NE SLOWLY. RIDGES FROM HIGH TO 25N147W TO
28N140W...AND FROM HIGH TO 25N161W.
.24 HOUR FORECAST HIGH DISSIPATED.

.RIDGE FROM 30N170E TO 26N160E MOVING E SLOWLY.

.NE TO E WINDS 20 TO 25 KT FROM 05N TO 16N W OF 170E.
.24 HOUR FORECAST NE TO E WINDS 20 TO 25 KT FROM 05N TO 14N W OF
167E.
.48 HOUR FORECAST NE TO E WINDS 20 TO 25 KT FROM 07N TO 13N W OF
166E...AND FROM 13N TO 18N BETWEEN 152W AND 160W.

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

.SEAS 8 TO 101 FT N OF 25N BETWEEN 140W AND 160W...AND N OF A LINE
FROM 10N160W TO 05N176W TO 04N160E.
.24 HOUR FORECAST SEAS 8 TO 10 FT N OF A LINE FROM 30N146W TO
26N152W TO 27N171W...AND FROM 04N TO 16N W OF 165E.
.48 HOUR FORECAST SEAS 8 TO 10 FT N OF 28N BETWEEN 140W AND
148W...AND FROM 06N TO 12N W OF 162E.

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

.ITCZ FROM 07N153W TO 07N170W TO 03N160E. ISOLATED MODERATE TSTMS
WITHIN 240 NM N OF ITCZ E OF 170W...AND WITHIN 60 NM OF ITCZ
ELSEWHERE.

.SCATTERED MODERATE TSTMS FROM 13N TO 15N BETWEEN 156W AND 170W.

$$

.FORECASTER BRAVENDER. HONOLULU HI.


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