000
FZPN40 PHFO 251525
HSFNP

HIGH SEAS FORECAST
NATIONAL WEATHER SERVICE HONOLULU HI
1700 UTC TUE SEP 25 2018

SUPERSEDED BY NEXT ISSUANCE IN 6 HOURS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 SEP 25 2018.
24 HOUR FORECAST VALID 1200 UTC SEP 26 2018.
48 HOUR FORECAST VALID 1200 UTC SEP 27 2018.

.WARNINGS.

.NONE.

.SYNOPSIS AND FORECAST.

.LOW 28N165W 1007 MB MOVING E 15 KT. TROUGH FROM 27N162W TO 20N163W
TO 15N172W MOVING E 10 KT. SE TO S WINDS 20 TO 25 KT N OF LINE FROM
26N162W TO 22N153W. SCATTERED MODERATE TSTMS N OF 20N BETWEEN 159W
AND 163W. ISOLATED MODERATE TSTMS WITHIN 90 NM OF LOW.
.24 HOUR FORECAST LOW DISSIPATED. NEW FRONT FROM 30N160W TO 22N168W.
TROUGH MERGED WITH FRONT. S TO SW WINDS 20 TO 30 KT N OF 25N BETWEEN
152W AND 160W. NE TO E WINDS 20 TO 25 KT FROM 24N TO 27N BETWEEN
173E AND 174W.
.48 HOUR FORECAST FRONT FROM 30N153W TO 23N160W TO 20N170W. S TO SW
WINDS 20 TO 25 KT BETWEEN FRONT AND 151W N OF 27N. NE TO E WINDS 20
TO 25 KT FROM 21N TO 24N BETWEEN 172W AND 174E.

.TROUGH FROM 14N150W TO 12N157W TO 13N165W NEARLY STATIONARY.
ISOLATED MODERATE TSTMS WITHIN 120 NM OF TROUGH...AND FROM 05N TO
09N BETWEEN 148W AND 151W.
.24 HOUR FORECAST TROUGH FROM 15N159W TO 07N165W.
.48 HOUR FORECAST TROUGH FROM 19N160W TO 14N160W.

.TROUGH FROM 14N178W TO 13N175E TO 11N170E NEARLY STATIONARY.
SCATTERED TO LOCALLY ISOLATED MODERATE TSTMS FROM 13N TO 18N BETWEEN
165E AND 179W.
.24 HOUR FORECAST TROUGH FROM 14N176E TO 12N167E.
.48 HOUR FORECAST TROUGH FROM 15N162E TO 11N172E.

.TROUGH FROM 02N160E TO 03N164E TO 04N167E NEARLY STATIONARY.
NUMEROUS STRONG TSTMS S OF 04N BETWEEN W OF 164E.
.24 HOUR FORECAST NEW LOW 05N160E 1008 MB. TROUGH FROM LOW TO
01N165E. WINDS 20 TO 25 KT S OF 06N W OF 163E.
.48 HOUR FORECAST LOW MOVED W OF FORECAST AREA. TROUGH DISSIPATED.
WINDS EASED TO 20 KT OR LESS OVER FORECAST WATERS.

.24 HOUR FORECAST NEW LOW 11N140W 1007 MB.
.48 HOUR FORECAST LOW 12N145W 1007 MB. WINDS 20 TO 25 KT WITHIN
270 NM OF LOW NE QUADRANT.

.HIGH 08N169W 1010 MB NEARLY STATIONARY. RIDGE FROM 08N178E TO HIGH
TO 05N162W TO 07N154W TO 12N148W.
.24 HOUR FORECAST HIGH DISSIPATED.

.RIDGE FROM 30N149W TO 16N160W MOVING E 10 KT.

.WINDS 20 KT OR LESS REST OF FORECAST AREA.

.SEAS 8 TO 10 FT N OF 27N BETWEEN 159W AND 163W.
.24 HOUR FORECAST SEAS 8 TO 11 FT N OF 27N BETWEEN 153W AND 159W.
SEAS 8 TO 9 FT N OF 28N BETWEEN 168W AND 174W...AND S OF 02N W OF
163E.
.48 HOUR FORECAST SEAS 8 TO 10 FT FROM 02N TO 08N W OF 162E...FROM
12N TO 16N BETWEEN 142W AND 146W...AND N OF 27N BETWEEN 160W AND
173W. SEAS 8 TO 9 FT FROM 22N TO 24N BETWEEN 174W AND 176E.

.SEAS 8 FT OR LESS REST OF FORECAST AREA.

.ISOLATED MODERATE TSTMS E OF LINE FROM 13N146W TO 08N142W TO
04N142W...FROM 17N TO 20N BETWEEN 150W AND 154W...AND FROM 04N TO
10N BETWEEN 171E AND 174E.

$$

.FORECASTER KINEL. HONOLULU HI.