334
FZPN40 PHFO 200325
HSFNP

HIGH SEAS FORECAST
NATIONAL WEATHER SERVICE HONOLULU HI
0500 UTC MON NOV 20 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SUPERSEDED BY NEXT ISSUANCE IN 6 HOURS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 NOV 20 2017.
24 HOUR FORECAST VALID 0000 UTC NOV 21 2017.
48 HOUR FORECAST VALID 0000 UTC NOV 22 2017.

.WARNINGS.

...GALE WARNING...
.LOW 25N169E 1013 MB NEARLY STATIONARY. TROUGH FROM 29N169E TO LOW
TO 22N174E TO 17N175E NEARLY STATIONARY. WINDS 25 TO 40 KT N OF LINE
FROM 28N162W TO 19N172W TO 22N178E TO 29N175E...STRONGEST N OF 26N
BETWEEN 176E AND 178W. ISOLATED MODERATE TSTMS WITHIN 60 NM OF LINE
FROM 26N178E TO 17N177W...WITHIN 45 NM OF LINE FROM 28N171E TO
28N174E TO 23N176E...AND WITHIN 75 NM OF LOW.
.24 HOUR FORECAST LOW DISSIPATED. TROUGH FROM 29N170E TO 22N176E TO
18N174E. WINDS 20 TO 30 KT N OF LINE FROM 26N168W TO 18N180E TO
29N172E...STRONGEST N OF 26N BETWEEN 174E AND 179E.
.48 HOUR FORECAST TROUGH FROM 29N168E TO 23N171E TO 16N171E. E TO SE
WINDS 20 TO 30 KT N OF LINE FROM 22N170W TO 21N178E TO 28N170E...
STRONGEST N OF 26N BETWEEN 172E AND 178E.

.SYNOPSIS AND FORECAST.

.LOW 05N162E 1008 MB MOVING W 10 KT. TROUGH FROM 13N150W TO 10N160W
TO 10N172W TO 08N172E TO LOW TO 04N160E NEARLY STATIONARY. ISOLATED
MODERATE TO STRONG TSTMS FROM 03N TO 08N W OF 163E...AND FROM 06N TO
10N BETWEEN 174E AND 176W. ISOLATED MODERATE TSTMS ELSEWHERE WITHIN
180 NM N...AND 120 NM S...OF TROUGH.
.24 HOUR FORECAST LOW MOVED W OF FORECAST AREA. REMNANT TROUGH FROM
12N176E TO 04N170E.
.48 HOUR FORECAST TROUGH FROM 12N173E TO 05N169E.

.WEAK FRONT FROM 30N142W TO 20N147W TO 15N156W MOVING E 10 KT. S TO
SW WINDS 20 TO 30 KT OVER FORECAST WATERS BETWEEN FRONT AND 140W N
OF 23N. WINDS 20 TO 25 KT OVER FORECAST WATERS N OF 27N BETWEEN 146W
AND 160W. ISOLATED MODERATE TO LOCALLY STRONG TSTMS BETWEEN FRONT
AND 142W FROM 15N TO 21N.
.24 HOUR FORECAST DISSIPATING FRONT FROM 26N140W TO 17N149W. WINDS
20 TO 25 KT OVER FORECAST WATERS N OF 25N BETWEEN 144W AND 154W.
.48 HOUR FORECAST FRONT WEAKENED TO TROUGH FROM 22N140W TO 19N43W TO
15N143W. WINDS 20 TO 25 KT OVER FORECAST WATERS N OF 28N E OF 156W.
N TO NE WINDS 20 TO 25 KT N OF 23N BETWEEN 156W AND 170W.

.RIDGE FROM 18N140W TO 15N145W NEARLY STATIONARY AND GRADUALLY
ERODING FROM THE SW.

.RIDGE FROM 30N172W TO 22N164W TO 20N156W NEARLY STATIONARY.

.RIDGE FROM 30N176W TO 24N177E NEARLY STATIONARY.

.RIDGE FROM 30N162E TO 27N160E NEARLY STATIONARY.

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

.SEAS 12 TO 17 FT N OF 25N BETWEEN 174E AND 179W. SEAS 12 TO 16 FT N
OF 25N BETWEEN 151W AND 161W. SEAS 8 TO 12 FT ELSEWHERE N OF LINE
FROM 25N140W TO 18N162W TO 18N179W TO 26N172E TO 26N165E.
.24 HOUR FORECAST SEAS 12 TO 16 FT N OF 26N BETWEEN 149W AND 157W.
SEAS 12 TO 15 FT N OF 25N BETWEEN 173E AND 179E. SEAS 8 TO 12 FT
ELSEWHERE N OF LINE FROM 23N140W TO 17N160W TO 12N163W TO 12N170W TO
21N173E TO 27N160E.
.48 HOUR FORECAST SEAS 12 TO 14 FT N OF 28N BETWEEN 152W AND 160W.
SEAS 8 TO 12 FT ELSEWHERE N OF LINE FROM 24N140W TO 18N150W TO
16N170W TO 12N172W TO 12N179E TO 28N167E.

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

.ISOLATED MODERATE TSTMS FROM 09N TO 10N E OF 145W.

$$

.FORECASTER KINEL. HONOLULU HI.