High Seas Forecast
Issued by NWS

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884
FZPN40 PHFO 262234
HSFNP

HIGH SEAS FORECAST
NATIONAL WEATHER SERVICE HONOLULU HI
2300 UTC MON SEP 26 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SUPERSEDED BY NEXT ISSUANCE IN 6 HOURS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 1800 UTC SEP 26 2016.
24 HOUR FORECAST VALID 1800 UTC SEP 27 2016.
48 HOUR FORECAST VALID 1800 UTC SEP 28 2016.

.WARNINGS.

...TROPICAL STORM WARNING...
.TROPICAL DEPRESSION NINETEEN-E 11.5N 140.2W 1005 MB MB MOVING WNW
04 KT. MAXIMUM SUSTAINED WINDS 30 KT GUSTS 40 KT. WINDS 20 TO 30 KT
AND SEAS 8 TO 10 FT WITHIN 150 NM N SEMICIRCLE AND 90 NM S
SEMICIRCLE. ISOLATED MODERATE TO LOCALLY STRONG TSTMS WITHIN 150 NM
OF CENTER.
.24 HOUR FORECAST TROPICAL STORM NINETEEN-E 13.0N 140.0W. MAXIMUM
SUSTAINED WINDS 40 KT GUSTS 50 KT. WINDS 34 KT OR GREATER AND SEAS
12 FT OR HIGHER WITHIN 40 NM NE...30 NM SE...0 NM SW...AND 20 NM NW
QUADRANTS. WINDS 20 TO 33 KT AND SEAS 8 FT OR HIGHER ELSEWHERE
WITHIN 180 NM N SEMICIRCLE AND 90 NM S SEMICIRCLE.
.48 HOUR FORECAST TROPICAL STORM NINETEEN-E JUST E OF AREA 15.0N
139.1W MAXIMUM SUSTAINED WINDS 45 KT GUSTS 55 KT. WINDS 34 KT OR
GREATER AND SEAS 12 FT OR HIGHER WITHIN 50 NM NE...40 NM SE...20 NM
SW...AND 30 NM NW QUADRANTS. WINDS 20 TO 30 KT AND SEAS 8 FT OR
HIGHER WITHIN 180 NM N SEMICIRCLE AND 90 NM S SEMICIRCLE.
.72 HOUR FORECAST TROPICAL STORM NINETEEN-E JUST E OF AREA 16.3N
139.5W. MAXIMUM SUSTAINED WINDS 40 KT GUSTS 50 KT.
EXTENDED OUTLOOK...USE FOR GUIDANCE ONLY...ERRORS MAY BE LARGE.
.96 HOUR FORECAST POST TROPICAL NINETEEN-E 17.1N 141.3W. MAXIMUM
SUSTAINED WINDS 25 KT GUSTS 35 KT.
.120 HOUR FORECAST...POST TROPICAL REMNANT LOW NINETEEN-E 17.2N
144.4W. MAXIMUM SUSTAINED WINDS 20 KT GUSTS 30 KT.

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.

.WEAKENING STATIONARY FRONT FROM 30N155W TO 26N159W TO 26N166W TO
26N180E TO 25N175E. NE WINDS 20 TO 25 KT AND SEAS 8 TO 9 FT N OF
FRONT E OF 166W. ISOLATED MODERATE TSTMS WITHIN 60 NM OF FRONT W
OF 180E.
.24 HOUR FORECAST WEAK FRONT FROM 30N156W TO 28N159W. WESTERN END
OF FRONT WEAKENED TO A TROUGH FROM 29N178W TO 26N178E. WINDS 20 TO
25 KT AND SEAS 8 TO 9 FT N OF FRONT.
.48 HOUR FORECAST TROUGH FROM 30N161W TO 27N165W. SECOND TROUGH
FROM 30N179W TO 26N178E. WINDS DIMINISHED TO 20 KT OR LESS. SEAS
DECREASED TO 8 FT OR LESS.

.E WINDS 20 TO 25 KT AND SEAS 8 TO 9 FT FROM 18N TO 25N W OF 169E.
.24 HOUR FORECAST E WINDS 20 TO 25 KT AND SEAS 8 TO 9 FT FROM 20N
TO 24N W OF 165E.
.48 HOUR FORECAST WINDS DIMINISHED TO 20 KT OR LESS. SEAS DECREASED
TO 8 FT OR LESS.

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

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

.ISOLATED MODERATE TSTMS FROM 04N TO 21N W OF 174E...AND WITHIN
90 NM OF A POINT 19N171W.

.MONSOON TROUGH FROM T.D. NINETEEN-E TO 11N145W TO 09N155W.
ISOLATED MODERATE TO LOCALLY STRONG TSTMS WITHIN 240 NM N AND 150
NM S OF MONSOON TROUGH.

.ITCZ FROM 09N155W TO 09N167W TO 09N172W TO 05N174E. SCATTERED
STRONG TSTMS WITHIN 90 NM N AND 150 NM S OF ITCZ W OF 172W.
ISOLATED MODERATE TSTMS ELSEWHERE WITHIN 420 NM N OF ITCZ W OF
172W.

$$

.FORECASTER WROE. HONOLULU HI.



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