High Seas Forecast
Issued by NWS

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000
FZPN40 PHFO 241530
HSFNP

HIGH SEAS FORECAST
NATIONAL WEATHER SERVICE HONOLULU HI
1700 UTC SUN JUL 24 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SUPERSEDED BY NEXT ISSUANCE IN 6 HOURS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 JUL 24 2016.
24 HOUR FORECAST VALID 1200 UTC JUL 25 2016.
48 HOUR FORECAST VALID 1200 UTC JUL 26 2016.

.WARNINGS.

...TROPICAL STORM WARNING...
.TROPICAL STORM DARBY NEAR 19.8N 157.3W AT 24/1500Z UTC MOVING WNW
08 KT. 1004 MB. MAXIMUM SUSTAINED WINDS 35 KT GUSTS 45 KT.
WINDS 34 KT OR GREATER WITHIN 70 NM N SEMICIRCLE...50 NM SE...20 NM
SW QUADRANTS. SEAS 12 FT OR HIGHER WITHIN 80 NM NE...100 NM NW
QUADRANTS. WINDS 20 TO 33 KT ELSEWHERE WITHIN 250 NM N SEMICIRCLE...
70 NM S SEMICIRCLE. SEAS 8 TO 10 FT ELSEWHERE WITHIN 300 NM N
SEMICIRCLE AND WITHIN 30 NM ELSEWHERE. SCATTERED MODERATE TO STRONG
TSTMS WITHIN 130 NM SE QUADRANT. ISOLATED MODERATE TSTMS WITHIN 200
NM ELSEWHERE.
.24 HOUR FORECAST TROPICAL STORM DARBY NEAR 21.9N 159.7W.
MAXIMUM SUSTAINED WINDS 35 KT GUSTS 45 KT.
WINDS 34 KT OR GREATER WITHIN 70 NM N SEMICIRCLE...50 NM SE...20 NM
SW QUADRANTS. SEAS 12 FT OR HIGHER WITHIN 100 NM N SEMICIRCLE.
WINDS 20 TO 33 KT ELSEWHERE WITHIN 200 NM N SEMICIRCLE...50 NM
ELSEWHERE. SEAS 8 TO 10 FT WITHIN 270 NM N SEMICIRCLE.
.48 HOUR FORECAST TROPICAL DEPRESSION DARBY NEAR 24.9N 162.6W.
MAXIMUM SUSTAINED WINDS 30 KT GUSTS 40 KT. WINDS 20 TO 30 KT WITHIN
150 NM N SEMICIRCLE. SEAS 8 TO 9 FT WITHIN 200 NM N SEMICIRCLE.

.72 HOUR FORECAST POST-TROPICAL REMNANT LOW NEAR 28.0N 165.5W.
MAXIMUM SUSTAINED WINDS 25 KT GUSTS 35 KT.
.96 HOUR FORECAST POST-TROPICAL REMNANT LOW NEAR 32.0N 167.0W.
MAXIMUM SUSTAINED WINDS 25 KT GUSTS 35 KT.
.120 HOUR FORECAST LOW DISSIPATED.

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

.SYNOPSIS AND FORECAST.

.LOW 23N170E 1011 MB NEAR STATIONARY. SCATTERED MODERATE...ISOLATED
STRONG TSTMS WITHIN 120 NM EITHER SIDE OF A LINE...30N179E TO
22N175E TO 20N174E TO 20N169E.
.24 HOUR FORECAST LOW 23N169E 1010 MB. WINDS 20 TO 25 KT WITHIN 300
NM NE QUADRANT OF LOW.
.48 HOUR FORECAST LOW 24N167E 1011 MB. WINDS 20 TO 25 KT N OF 26N
BETWEEN 175E AND 170E.

.TROUGH...EX-T.C. ESTELLE...30N143W TO 22N143W MOVING W 10 KT AND
WEAKENING. WINDS 20 TO 25 KT SEAS 8 TO 10 FT E OF TROUGH N OF 24N.
.24 HOUR FORECAST WEAK TROUGH 29N149W TO 24N149W...DISSIPATING.
WINDS DIMINISHED TO 20 KT OR LESS. SEAS LOWERED TO 8 FT OR LESS.
.48 HOUR FORECAST TROUGH DISSIPATED.

.TROUGH 30N173E TO 25N173E MOVING W 10 KT AND DISSIPATING.
SEE TSTMS ASSOCIATED WITH LOW ABOVE.
.24 HOUR FORECAST TROUGH DISSIPATED.

.RIDGE 30N167E TO 24N164E TO 21N160E NEARLY STATIONARY...WEAKENING.

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

.EXCEPT FOR SEAS ASSOCIATED WITH T.S. DARBY...SEAS 8 TO 10 FT N OF
26N W OF 163E. SEAS 8 TO 9 FT N OF 27N BETWEEN 176W AND 177E.
.24 HOUR FORECAST SEAS 8 TO 9 FT N OF 25N BETWEEN 178E AND 170E.
.48 HOUR FORECAST SEAS 8 TO 10 FT N OF 27N BETWEEN 174E AND 167E.

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

.ITCZ 08N140W TO 08N155W TO 11N170W TO 07N173E TO 07N160E.
SCATTERED TSTMS WITHIN 200 NM  OF ITCZ W OF 158W.

$$

.FORECASTER LAU. HONOLULU HI.


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