High Seas Forecast
Issued by NWS

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000
FZPN40 PHFO 251530
HSFNP

HIGH SEAS FORECAST
NATIONAL WEATHER SERVICE HONOLULU HI
1700 UTC THU MAY 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SUPERSEDED BY NEXT ISSUANCE IN 6 HOURS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 1200 UTC MAY 25 2017.
24 HOUR FORECAST VALID 1200 UTC MAY 26 2017.
48 HOUR FORECAST VALID 1200 UTC MAY 27 2017.

.WARNINGS.

.NONE.

.SYNOPSIS AND FORECAST.

.TROUGH 23N172E 18N173E MOVING W 10 KT. SEE WINDS AND SEAS BELOW.
ISOLATED MODERATE TSTMS WITHIN 180 NM E OF TROUGH N OF 21N.
.24 HOUR FORECAST TROUGH DISSIPATED. SEE WINDS AND SEAS BELOW.

.TROUGH 30N149W 24N152W NEARLY STATIONARY.
.24 HOUR FORECAST TROUGH 30N148W 24N152W.
.48 HOUR FORECAST TROUGH 30N145W 23N155W.

.NE TO E WINDS 20 TO 25 KT N OF 21N BETWEEN 160W AND 170E.
.24 HOUR FORECAST NE TO E WINDS 20 TO 25 KT N OF 24N
BETWEEN 165W AND 165E.
.48 HOUR FORECAST NE TO E WINDS 20 TO 25 KT N OF 20N
BETWEEN 168W AND 170E.

.RIDGE 30N168E 26N160E MOVING N 10 KT.

.24 HOUR FORECAST NEW TROUGH 30N147W 24N152W.
.48 HOUR FORECAST TROUGH 30N146W 27N149W 22N154W.

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

.SEAS 8 TO 10 FT FROM 18N TO 29N BETWEEN 169W AND 172E.
.24 HOUR FORECAST SEAS 8 TO 9 FT N OF 19N BETWEEN 170W AND
167E.
.48 HOUR FORECAST SEAS 8 TO 9 FT FROM 21N TO 27N BETWEEN 172W
AND 171E.

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

.ITCZ 07N140W 07N153W 04N163W 05N178E 02N160E. SCATTERED
MODERATE TSTMS WITHIN 120 NM OF ITCZ W OF 164E...FROM 175W TO
179E...AND E OF 163W.

$$

.FORECASTER POWELL. HONOLULU HI.


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