High Seas Forecast
Issued by NWS

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517
FZPN40 PHFO 231016
HSFNP

HIGH SEAS FORECAST
NATIONAL WEATHER SERVICE HONOLULU HI
1100 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SUPERSEDED BY NEXT ISSUANCE IN 6 HOURS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 0600 UTC FEB 23 2017.
24 HOUR FORECAST VALID 0600 UTC FEB 24 2017.
48 HOUR FORECAST VALID 0600 UTC FEB 25 2017.

.WARNINGS.

.NONE.

.SYNOPSIS AND FORECAST.

.FRONT 30N177W 23N175E THENCE SHEARLINE TO 18N160E. N END OF FRONT
MOVING E 20 SLOWING TO NEARLY STATIONARY W OF 180W. SHEARLINE NEARLY
STATIONARY AND DISSIPATING. SW WINDS 20 TO 25 KT WITHIN 250 NM E OF
FRONT N OF 27N. NE WINDS 20 TO 25 KT WITHIN 260 NM N OF SHEARLINE.
ISOLATED MODERATE TSTMS WITHIN 270 NM E OF FRONT.
.24 HOUR FORECAST FRONT 30N168W 26N175W THENCE SHEARLINE TO 20N170E.
SW WINDS DIMINISHED E OF FRONT. NE WINDS 20 TO 25 KT WITHIN 320 NM N
OF SHEARLINE.
.48 HOUR FORECAST FRONT 30N160W 29N163W 26N170W THENCE SHEARLINE TO
25N175E. NE WINDS DIMINISHED TO 20 KT OR LESS.

.FRONT 30N149W 29N152W 27N160W MOVING SE 10 KT.
.24 HOUR FORECAST FRONT 30N144W 28N145W 25N155W. NW WINDS 20 TO 25 KT
BETWEEN FRONT AND 155W N OF 28N.
.48 HOUR FORECAST FRONT 28N140W 24N144W 22N150W. NW WINDS DIMINISHED
TO 20 KT OR LESS.

.NE WINDS 20 TO 25 KT IN AREA BOUNDED BY 20N150W 10N150W 04N169W
04N167E 11N167E 20N150W.
.24 HOUR FORECAST NE WINDS 20 TO 25 KT WITHIN 250 NM EITHER SIDE OF
A LINE 12N174W  07N160E.
.48 HOUR FORECAST NE WINDS 20 TO 25 KT WITHIN 250 NM EITHER SIDE OF
A LINE 18N155W 12N179W 10N160E.

.RIDGE 30N165W 27N170W 23N180W NEARLY STATIONARY AND ERODING W OF 170W.

.SEAS 12 TO 16 FT N OF LINE 30N177W 24N175E 21N170E 21N163E 25N160E.
SEAS 8 TO 12 FT ELSEWHERE N OF LINE...30N174W 25N177W 20N175E 17N165E
16N160E. SEAS 7 TO 12 FT BETWEEN 23N AND 04N FROM 150W TO 173E.
SEAS 8 TO 9 FT BETWEEN 23N AND 19N E OF 150W. SEAS 8 TO 11 FT N OF A
LINE...30N148W 25N156W 25N162W 30N163W.
.24 HOUR FORECAST SEAS 7 TO 13 FT N OF 02N W OF 155W...HIGHEST N OF
22N BETWEEN 170W AND 173E.  SEAS 8 TO 11 FT N OF 20N E OF 155W.
.48 HOUR FORECAST SEAS 7 TO 11 FT N OF A LINE...20N140W 02N177W
02N160E.

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

.WIDELY SCATTERED TSTMS WITHIN 120 NM EITHER SIDE OF A LINE...23N142W
14N154W. WIDELY SCATTERED MODERATE TSTMS BETWEEN 08N AND 03N W OF 177W.

.ITCZ 08N140W 06N150W 03N170W.


$$

.FORECASTER LAU. HONOLULU HI.



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