The High Seas Forecast for the Central North Pacific

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FZPN40 PHFO 281526
HSFNP

HIGH SEAS FORECAST
NATIONAL WEATHER SERVICE HONOLULU HI
1700 UTC WED SEP 28 2016

SUPERSEDED BY NEXT ISSUANCE IN 6 HOURS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 28 2016.
24 HOUR FORECAST VALID 1200 UTC SEP 29 2016.
48 HOUR FORECAST VALID 1200 UTC SEP 30 2016.

.WARNINGS.

...TROPICAL STORM WARNING...
.WINDS 20 TO 30 KT AND SEAS 8 TO 10 FT E OF 141W BETWEEN 13N AND 16N.
.24 HOUR FORECAST...WINDS 20 TO 30 KT AND SEAS 8 TO 12 FT E OF 142W
BETWEEN 14N AND 18N.
.48 HOUR FORECAST...TROPICAL STORM ULIKA NEAR 17.3N 141.2W. MAXIMUM
SUSTAINED WINDS 35 KT GUSTS 45 KT. TROPICAL STORM FORCE WINDS WITHIN
30 NM NE AND 20 NM SE QUADRANTS. SEAS 12 FT OR HIGHER WITHIN 30 NM
OF CENTER. WINDS 20 TO 33 FT AND SEAS 8 TO 12 FT ELSEWHERE WITHIN 60
NM OF CENTER.
.72 HOUR FORECAST...REMNANT LOW ULIKA NEAR 17.5N 144.1W. MAXIMUM
SUSTAINED WINDS 30 KT GUSTS 40 KT.
EXTENDED OUTLOOK...USE FOR GUIDANCE ONLY...ERRORS MAY BE LARGE.
.96 HOUR FORECAST...REMNANT LOW ULIKA NEAR 17.5N 148.6W. MAXIMUM
SUSTAINED WINDS 20 KT GUSTS 30 KT.
.120 HOUR FORECAST...LOW DISSIPATED.

FORECAST WINDS IN AND NEAR ACTIVE TROPICAL CYCLONES SHOULD BE
USED WITH CAUTION DUE TO UNCERTAINTY IN FORECAST TRACK...SIZE
AND INTENSITY.

.SYNOPSIS AND FORECAST.

.WEAK TROUGH 24N163W TO 30N162W MOVING W 10 KT.
.24 HOUR FORECAST WEAK TROUGH 26N167W TO 30N166W.
.48 HOUR FORECAST TROUGH DISSIPATED.

.TROUGH 04N162E TO 10N170E TO 14N177E MOVING W 10 KT. SCATTERED
MODERATE TO STRONG TSTMS FROM 06N TO 10N BETWEEN 162E AND 167E...AND
FROM 08N TO 11N BETWEEN 173E AND 175E. ISOLATED MODERATE TSTMS
ELSEWHERE FROM 03N TO 20N W OF 180E.
.24 HOUR FORECAST TROUGH 08N160E TO 12N171E.
.48 HOUR FORECAST TROUGH W OF FORECAST AREA.

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

.SEAS 8 FT OR LOWER OVER REMAINDER OF FORECAST AREA.

.ITCZ 12N144W TO 09N172W TO 10N179W. ISOLATED MODERATE TO STRONG
TSTMS FROM 07N TO 19N BETWEEN 173W AND 180W...FROM 06N TO 12N
BETWEEN 162W AND 173W...AND FROM 06N TO 16N BETWEEN 162W AND 144W.

.ISOLATED MODERATE TSTMS E OF 142W BETWEEN 11N TO 16N...WITHIN 60 NM
OF LINE 25N174W TO 28N170W TO 30N168W...AND WITHIN 60 NM OF 29N178W
AND 26N173E.

$$

.HONOLULU HI.


Additional Resources:

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