High Seas Forecast
Issued by NWS

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840
FZPN40 PHFO 231525
HSFNP

HIGH SEAS FORECAST
NATIONAL WEATHER SERVICE HONOLULU HI
1700 UTC TUE MAY 23 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SUPERSEDED BY NEXT ISSUANCE IN 6 HOURS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 1200 UTC MAY 23 2017.
24 HOUR FORECAST VALID 1200 UTC MAY 24 2017.
48 HOUR FORECAST VALID 1200 UTC MAY 25 2017.

.WARNINGS.

.NONE.

.SYNOPSIS AND FORECAST.

.FRONT FROM 30N146W TO 25N155W TO 22N165W TO 20N178W NEARLY
STATIONARY AND WEAKENING. NE TO E WINDS 20 TO 25 KT OVER FORECAST
WATERS N OF FRONT.
.24 HOUR FORECAST DISSIPATING FRONT FROM 30N146W TO 25N156W TO
23N168W TO 21N177W. NE TO E WINDS 20 TO 25 KT OVER FORECAST WATERS N
OF FRONT W OF 162W.
.48 HOUR FORECAST FRONT DISSIPATED. REMNANT TROUGH FROM 30N148W TO
24N152W. NE TO E WINDS 20 TO 25 KT OVER FORECAST WATERS N OF 21N
BETWEEN 165W AND 171E.

.FRONT FROM 30N166E TO 28N163E TO 27N160E NEARLY STATIONARY.
.24 HOUR FORECAST WEAK FRONT FROM 30N163E TO 29N160E.
.48 HOUR FORECAST FRONT MOVED N OF FORECAST AREA.

.NE WINDS 20 TO 25 KT FROM 10N TO 15N BETWEEN 166W AND 173W.
.24 HOUR FORECAST WINDS EASED TO 20 KT OR LESS.

.RIDGE FROM 30N174E TO 24N160E NEARLY STATIONARY.

.WINDS 20 KT OR LESS OVER REST OF FORECAST AREA.

.SEAS 8 TO 10 FT OVER FORECAST WATERS N OF LINE FROM 24N155W TO
19N172W. SEAS 8 TO 9 FT FROM 18N TO 24N BETWEEN 172W AND 177E.
.24 HOUR FORECAST SEAS 8 TO 9 FT FROM 22N TO 28N BETWEEN 162W AND
173W...AND FROM 20N TO 22N BETWEEN 173W AND 180W.
.48 HOUR FORECAST SEAS 8 TO 9 FT FROM 20N TO 26N BETWEEN 172E AND
178E.

.SEAS 8 FT OR LESS OVER REST OF FORECAST AREA.

.ITCZ FROM 06N140W TO 05N150W TO 02N165W TO 02N175W TO 03N170E TO
04N160E. ISOLATED MODERATE TO LOCALLY STRONG TSTMS WITHIN 90 NM N OF
ITCZ. ISOLATED MODERATE TSTMS WITHIN 75 NM S OF ITCZ.

$$

.FORECASTER KINEL. HONOLULU HI.



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