High Seas Forecast
Issued by NWS

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FZPN40 PHFO 022245
HSFNP

HIGH SEAS FORECAST
NATIONAL WEATHER SERVICE HONOLULU HI
2300 UTC THU JUL 02 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SUPERSEDED BY NEXT ISSUANCE IN 6 HOURS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.

SECURITE

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

SYNOPSIS VALID 1800 UTC JUL 02 2015.
24 HOUR FORECAST VALID 1800 UTC JUL 03 2015.
48 HOUR FORECAST VALID 1800 UTC JUL 04 2015.

.WARNINGS.

.NONE.

.SYNOPSIS AND FORECAST.

.LOW 08N173E 1004 MB MOVING NW SLOWLY. TROUGH FROM 11N160E TO LOW TO
07N180E NEARLY STATIONARY. WINDS 20 TO 30 KT AND SEAS 8 TO 12 FT
WITHIN 450 NM SW QUADRANT AND WITHIN 240 NM N SEMICIRCLE OF LOW.
NUMEROUS STRONG TSTMS WITHIN 150 NM NW QUADRANT OF LOW. SCATTERED
MODERATE TO STRONG TSTMS WITHIN 210 NM OF TROUGH TO THE E OF THE
LOW. ISOLATED MODERATE TSTMS ELSEWHERE WITHIN 210 NM TO THE W OF THE
LOW.
.24 HOUR FORECAST LOW 10N169E 1003 MB. TROUGH FROM 10N160E TO LOW TO
09N177E. WINDS 20 TO 30 KT AND SEAS 8 TO 12 FT WITHIN 360 NM N
QUADRANT OF LOW...AND ELSEWHERE WITHIN 180 NM OF LOW.
.48 HOUR FORECAST LOW 11N166E 1003 MB. TROUGH FROM 10N160E TO LOW TO
08N172E. WINDS 20 TO 30 KT AND SEAS 8 TO 12 FT WITHIN 330 NM N
SEMICIRCLE OF LOW.

.TROUGH FROM 09N140W TO WEAK LOW 09N148W 1008 MB TO SECOND WEAK LOW
10N161W 1008 MB TO 09N167W TO 07N180E. TROUGH AND LOWS NEARLY
STATIONARY. ISOLATED MODERATE TO STRONG TSTMS S OF TROUGH AND WITHIN
420 NM S AND 180 NM N OF TROUGH W OF 167W.
.24 HOUR FORECAST TROUGH FROM 11N140W TO WEAK LOW 10N149W 1008 MB TO
SECOND WEAK LOW 09N163W 1009 MB TO 05N168W.
.48 HOUR FORECAST TROUGH FROM 12N140W TO WEAK LOW 11N147W 1008 MB TO
09N165W TO 06N170W. SECOND LOW DISSIPATED.

.STATIONARY FRONT FROM 30N156W TO 25N160W TO 19N168W.
.24 HOUR FORECAST WEAKENING FRONT FROM 30N157W TO 26N160W TO 20N166W.
.48 HOUR FORECAST WEAK FRONT FROM 30N158W TO 25N160W TO 22N166W.

.TROUGH FROM 30N164W TO 26N168W MOVING SW 10 KT.
.24 HOUR FORECAST TROUGH FROM 30N162W TO 23N167W.
.48 HOUR FORECAST TROUGH MERGED WITH FRONT DESCRIBED IN ABOVE
PARAGRAPH.

.E WINDS 20 TO 25 KT FROM 13N TO 20N W OF 166E.
.24 HOUR FORECAST E WINDS 20 TO 25 KT FROM 18N TO 24N W OF 172E.
.48 HOUR FORECAST E WINDS 20 TO 25 KT FROM 18N TO 22N W OF 170E.

.48 HOUR FORECAST NEW FRONT FROM 30N172W TO 25N176E.

.RIDGE FROM 30N150W TO 25N155W TO 20N163W NEARLY STATIONARY.

.RIDGE FROM 30N172E TO 22N168W NEARLY STATIONARY.

.WINDS 20 KT OR LESS AND SEAS 8 FT OR LOWER OVER REMAINDER OF
FORECAST AREA.

.ISOLATED MODERATE TSTMS WITHIN 120 NM OF POINT 13N171W.

$$
.FORECASTER DWROE. HONOLULU HI.




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