High Seas Forecast
Issued by NWS

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FZPN40 PHFO 041045
HSFNP

HIGH SEAS FORECAST
NATIONAL WEATHER SERVICE HONOLULU HI
1100 UTC SAT JUL 04 2015

SUPERSEDED BY NEXT ISSUANCE IN 6 HOURS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 0600 UTC JUL 04 2015.
24 HOUR FORECAST VALID 0600 UTC JUL 05 2015.
48 HOUR FORECAST VALID 0600 UTC JUL 06 2015.

.WARNINGS.

...HURRICANE WARNING...
.TROPICAL STORM NANGKA 10.9N 168.9E 993 MB MOVING NW 13 KT. MAXIMUM
SUSTAINED WINDS 40 KT GUSTS 50 KT. WINDS 34 KT OR GREATER SEAS 12 FT
OR HIGHER WITHIN 60 NM N AND 30 NM S SEMICIRCLES. WINDS 20 TO 33 KT
SEAS 8 TO 12 FT ELSEWHERE WITHIN 240 NM N AND 180 NM S SEMICIRCLES.
SCATTERED MODERATE TO STRONG TSTMS WITHIN 180 NM OF CENTER. ISOLATED
MODERATE TSTMS ELSEWHERE FROM 02N TO 12N W OF 169E...AND FROM 04N TO
16N BETWEEN 169E AND 177E.
.24 HOUR FORECAST TROPICAL STORM NANGKA 11.9N 163.8E. MAXIMUM
SUSTAINED WINDS 55 KT GUSTS 70 KT. WINDS 34 KT OR GREATER AND SEAS
12 FT OR HIGHER WITHIN 95 NM N AND 75 NM S SEMICIRCLES. WINDS 20 TO
33 KT AND SEAS 8 TO 12 FT ELSEWHERE FROM 08N TO 21N BETWEEN 160E AND
167E.
.48 HOUR FORECAST TYPHOON NANGKA JUST WEST OF FORECAST AREA 13.0N
159.5E. MAXIMUM SUSTAINED WINDS 65 KT GUSTS 80 KT. WINDS 34 KT OR
GREATER AND SEAS 12 FT OR HIGHER WITHIN 110 NM OF CENTER. WINDS
20 TO 33 KT ELSEWHERE FROM 08N TO 21N W OF 162E. SEAS 8 TO 12 FT
ELSEWHERE W OF A LINE FROM 08N165E TO 16N167E TO 24N161E.
SEE WTPN33 PGTW BULLETIN ISSUED BY JTWC FOR MORE INFORMATION.

.SYNOPSIS AND FORECAST.

.LOW 09N163W 1007 MB MOVING NW SLOWLY. TROUGH FROM 05N171W TO LOW TO
08N156W MOVING N W OF LOW AND NEARLY STATIONARY ELSEWHERE. ISOLATED
MODERATE TSTMS FROM 01N TO 13N BETWEEN 156W AND 172W.
.24 HOUR FORECAST LOW 10N165W 1008 MB. TROUGH FROM 09N171W TO LOW TO
09N158W.
.48 HOUR FORECAST LOW 10N167W 1008 MB. TROUGH FROM 12N180W TO LOW TO
09N158W.

.LOW 09N150W 1007 MB MOVING NW SLOWLY. TROUGH FROM 08N156W TO LOW
TO 12N140W NEARLY STATIONARY. ISOLATED MODERATE TSTMS S OF 13N W OF
156W.
.24 HOUR FORECAST LOW 10N149W 1008 MB.
.48 HOUR FORECAST LOW 10N149W 1007 MB.

.WEAKENING FRONT FROM 30N157W TO 22N164W NEARLY STATIONARY.
.24 HOUR FORECAST FRONT DISSIPATED.

.FRONT JUST N OF FORECAST AREA NEAR 179W MOVING SE 15 KT.
.24 HOUR FORECAST FRONT FROM 30N169W TO 26N175W TO 25N180W.
.48 HOUR FORECAST DISSIPATING FRONT FROM 30N166W TO 25N174W TO
24N180W.

.RIDGE FROM 30N164E TO 25N179W TO 25N172W MOVING S SLOWLY.

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

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

.ISOLATED MODERATE TSTMS FROM 11N TO 15N BETWEEN 173W AND 177E.

$$

.HONOLULU HI.




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