High Seas Forecast
Issued by NWS

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FZPN40 PHFO 292226
HSFNP

HIGH SEAS FORECAST
NATIONAL WEATHER SERVICE HONOLULU HI
2300 UTC MON AUG 29 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SUPERSEDED BY NEXT ISSUANCE IN 6 HOURS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.

PAN PAN

NORTH PACIFIC EQUATOR TO 30N BETWEEN 140W AND 160E

SYNOPSIS VALID 1800 UTC AUG 29 2016.
24 HOUR FORECAST VALID 1800 UTC AUG 30 2016.
48 HOUR FORECAST VALID 1800 UTC AUG 31 2016.

.WARNINGS.

...HURRICANE WARNING...
.HURRICANE MADELINE NEAR 18.6N 145.5W 966 MB AT 2100 UTC MOVING WNW
09 KT. MAXIMUM SUSTAINED WINDS 100 KT GUSTS 120 KT. WINDS 34 KT OR
GREATER WITHIN 100 NM N SEMICIRCLE...AND 80 NM S SEMICIRCLE.
SEAS 12 FT OR HIGHER WITHIN 150 NM N SEMICIRCLE...AND 90 NM S
SEMICIRCLE. WINDS 20 TO 33 KT AND SEAS 8 TO 12 FT ELSEWHERE FROM 16N
TO 23N BETWEEN 141W AND 148W. NUMEROUS MODERATE TO STRONG TSTMS
WITHIN 90 NM OF CENTER.
.24 HOUR FORECAST HURRICANE MADELINE 19.2N 148.7W. MAXIMUM SUSTAINED
WINDS 100 KT GUSTS 120 KT. WINDS 34 KT OR GREATER AND SEAS 12 FT OR
HIGHER WITHIN 100 NM NE...80 NM SE...80 NM SW...AND 100 NM NW
QUADRANTS. WINDS 20 TO 33 KT AND SEAS 8 TO 12 FT ELSEWHERE FROM 18N
TO 24N BETWEEN 144W AND 152W.
.48 HOUR FORECAST HURRICANE MADELINE 18.7N 152.6W. MAXIMUM SUSTAINED
WINDS 80 KT GUSTS 100 KT. WINDS 34 KT OR GREATER AND SEAS 12 FT OR
HIGHER WITHIN 90 NM NE...50 NM SE...50 NM SW...AND 90 NM NW
QUADRANTS. WINDS 20 TO 33 KT AND SEAS 8 TO 12 FT ELSEWHERE FROM 16N
TO 26N BETWEEN 147W AND 156W.
.72 HOUR FORECAST HURRICANE MADELINE 18.0N 156.6W. MAXIMUM SUSTAINED
WINDS 70 KT GUSTS 85 KT.

EXTENDED OUTLOOK...USE FOR GUIDANCE ONLY...ERRORS MAY BE LARGE.

.96 HOUR FORECAST TROPICAL STORM MADELINE 18.4N 160.7W. MAXIMUM
SUSTAINED WINDS 60 KT GUSTS 75 KT.
.120 HOUR FORECAST TROPICAL STORM MADELINE 19.0N 165.5W. MAXIMUM
SUSTAINED WINDS 60 KT GUSTS 75 KT.

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

...TROPICAL STORM WARNING...
.36 HOUR FORECAST HURRICANE LESTER E OF FORECAST AREA. WINDS 20 TO
25 KT AND SEAS 8 TO 11 FT OVER FORECAST WATERS FROM 17N TO 23N E OF
143W.
.48 HOUR FORECAST HURRICANE LESTER JUST E OF AREA. WINDS 30 TO 50 KT
AND SEAS 12 FT OR HIGHER FROM 18N TO 21N E OF 142W. WINDS 20 TO 30
KT AND SEAS 8 TO 12 FT ELSEWHERE FROM 16N TO 24N E OF 144W.

.SYNOPSIS AND FORECAST.

.LOW 14N160W 1011 MB MOVING NW SLOWLY. TROUGHS FROM LOW TO 15N159W
TO 11N148W TO 13N141W...AND FROM LOW TO 10N165W TO 07N174W. TROUGHS
NEARLY STATIONARY. ISOLATED MODERATE TSTMS WITHIN 165 NM S OF
TROUGHS...ELSEWHERE FROM 14N TO 18N BETWEEN 157W AND 162W...AND FROM
13N TO 16N BETWEEN 150W AND 156W.
.24 HOUR FORECAST LOW 16N163W 1012 MB. TROUGHS...LITTLE CHANGE.
.48 HOUR FORECAST LOW 16N166W 1011 MB. TROUGHS FROM LOW TO
10N153W...AND FROM LOW TO 09N172W.

.FRONT FROM 30N167E TO 26N168E TO 23N166E TO 17N160E MOVING E SLOWLY
N OF 23N...AND NEARLY STATIONARY ELSEWHERE. ISOLATED TO LOCALLY
SCATTERED MODERATE TO STRONG TSTMS N OF 23N BETWEEN 169E AND 172E.
ISOLATED MODERATE TSTMS FROM 11N TO 21N W OF 167E.
.24 HOUR FORECAST FRONT FROM 30N174E TO 23N167E TO 16N160E. WINDS 20
TO 25 KT N OF 27N BETWEEN 174E AND 178E.
.48 HOUR FORECAST FRONT FROM 30N180E TO 26N170E TO 21N165E. WINDS 20
TO 25 KT N OF 28N BETWEEN 176W AND 180W.

.FRONT FROM 30N174W TO 28N180E TO 30N174E NEARLY STATIONARY.
ISOLATED MODERATE TSTMS N OF LINE FROM 28N171W TO 25N175W TO 25N174E.
.24 HOUR FORECAST FRONT MOVED N OF FORECAST AREA.

.TROUGH FROM 14N170E TO 07N168E NEARLY STATIONARY. ISOLATED MODERATE
TSTMS FROM 08N TO 14N BETWEEN 168E AND 179W...AND FROM 03N TO 07N
BETWEEN 162E AND 173E.
.24 HOUR FORECAST TROUGH FROM 15N170E TO 07N168E.
.48 HOUR FORECAST WEAK TROUGH FROM 14N168E TO 08N167E.

.WEAKENING TROUGH FROM 28N140W TO 23N145W MOVING NW 10 KT.
.24 HOUR FORECAST DISSIPATING TROUGH FROM 29N140W TO 25N147W.
.48 HOUR FORECAST TROUGH DISSIPATED.

.RIDGE FROM 30N165W TO 22N180E TO 11N160E NEARLY STATIONARY.

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

.THE FOLLOWING ARE SEAS NOT ASSOCIATED WITH HURRICANE MADELINE OR
LESTER.

.SEAS 8 TO 10 FT N OF 24N W OF 165E.
.24 HOUR FORECAST SEAS 8 TO 11 FT N OF 20N W OF 171E.
.48 HOUR FORECAST SEAS 8 TO 9 FT N OF 27N BETWEEN 175E AND 178W.

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

$$

.FORECASTER KINEL. HONOLULU HI.



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