High Seas Forecast
Issued by NWS

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000
FZPN40 PHFO 230343
HSFNP

HIGH SEAS FORECAST
NATIONAL WEATHER SERVICE HONOLULU HI
0500 UTC THU FEB 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SUPERSEDED BY NEXT ISSUANCE IN 6 HOURS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 0000 UTC FEB 23 2017.
24 HOUR FORECAST VALID 0000 UTC FEB 24 2017.
48 HOUR FORECAST VALID 0000 UTC FEB 25 2017.

.WARNINGS.

.NONE.

.SYNOPSIS AND FORECAST.

.FRONT 30N178W 25N176E 21N170E THENCE SHEAR LINE TO 19N160E. FRONT
MOVING E 15 KT ALONG 30N. FRONT AND SHEAR LINE NEARLY STATIONARY
WEST OF 175E. WINDS 20 TO 30 KT N OF LINE 30N174W 27N180W 30N178W.
WINDS 20 TO 25 KT WITHIN 200 NM N OF SHEAR LINE W OF 175E. ISOLATED
MODERATE TSTMS WITHIN 60 NM OF LINE 30N173W 24N179E.
.24 HOUR FORECAST FRONT 30N171W 22N178E THENCE SHEAR LINE TO
20N160E. NE WINDS 20 TO 25 KT WITHIN 150 NM NW OF FRONT AND SHEAR
LINE E OF 175E.
.48 HOUR FORECAST FRONT 30N162W 26N169W THENCE SHEAR LINE TO
26N180W. NE WINDS 20 TO 25 KT WITHIN 120 NM NW OF FRONT AND SHEAR
LINE.

.FRONT 30N152W 29N155W 28N163W MOVING E 10 KT.
.24 HOUR FORECAST FRONT 30N146W 27N150W 27N153W. WINDS 20 TO 25 KT
WITHIN 60 NM OF FRONT E OF 149W.
.48 HOUR FORECAST FRONT 28N140W 25N141W 20N142W. WINDS 20 TO 30 KT N
OF LINE 28N140W 27N143W 30N148W.

.NE TO E WINDS 20 TO 25 KT BOUNDED BY 25N140W 21N140W 06N170W
06N180W 16N180W 25N140W.
.24 HOUR FORECAST NE TO E WINDS 20 TO 25 KT WITHIN 150 NM OF LINE
16N155W 08N160E.
.48 HOUR FORECAST NE TO E WINDS 20 TO 25 KT BOUNDED BY
18N170W 14N162W 05N160E 15N160E 18N170W.

.ITCZ 07N140W 04N160W 04N170E MOVING S SLOWLY. ISOLATED MODERATE
TSTMS WITHIN 120 NM N OF ITCZ E OF 143W AND WITHIN 90 NM OF LINE
05N175W 04N170E 08N166E.

.RIDGE 30N144W 27N153W MOVING SE 10 KT.

.RIDGE 30N167W 12N175E NEARLY STATIONRY.

.RIDGE 25N173E 30N160E MOVING NE 30 KT.

.SEAS 12 TO 18 FT NW OF LINE 30N179W 20N160E...SEAS LESS THAN 8 FT NE
OF LINE 28N140W 22N155W 30N155W...SEAS 8 TO 12 FT ELSEWHERE N OF
LINE 05N140W 02N170W 06N172E 24N173E 19N160E.
.24 HOUR FORECAST SEAS 12 TO 14 FT N OF LINE 30N170W 22N180W 20N165E
30N170E...SEAS 8 TO 12 FT ELSEWHERE NW OF LINE 30N140W 00N170W
05N160E.
.48 HOUR FORECAST SEAS 8 TO 11 FT NW OF LINE 20N140W 00N180W 05N160E.

.REMAINDER OF AREA WINDS 20 KT OR LESS. SEAS LESS THAN 8 FT.

.ISOLATED MODERATE TSTMS BOUNDED BY 20N143W 15N150W 16N155W 20N143W.

$$
.HONOLULU.



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