High Seas Forecast
Issued by NWS

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875
FZPS40 PHFO 221009
HSFSP

HIGH SEAS FORECAST
NATIONAL WEATHER SERVICE HONOLULU HI
1130 UTC WED NOV 22 2017

SUPERSEDED BY NEXT ISSUANCE IN 6 HOURS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

SOUTH PACIFIC EQUATOR TO 25S BETWEEN 120W AND 160E

SYNOPSIS VALID 0600 UTC NOV 22 2017.
24 HOUR FORECAST VALID 0600 UTC NOV 23 2017.
48 HOUR FORECAST VALID 0600 UTC NOV 24 2017.

.WARNINGS.

.NONE.

.SYNOPSIS AND FORECAST.
.LOW NEAR 07S172E 1006 MB NEARLY STATIONARY.
.24 HOUR FORECAST LOW DISSIPATED.

.COLD FRONT 30N162W TO 23S165W TO 20S180W THENCE TROUGH TO
17S166E TO 13S160E. FRONT MOVING NE NEAR 10 KT. TROUGH MOVING N
SLOWLY AND DISSIPATING. SE WINDS 20 TO 25 KT S OF FRONT.
.24 HOUR FORECAST 25S155W TO 20S164W TO 18S175W TO 17S175E TO
18S160E. SE TO E WINDS 20 TO 25 KT S OF FRONT W OF 165W.
.48 HOUR FORECAST FRONT 25S146W 19S151W 15S160W 15S173W 17S165E.
SE TO E WINDS 20 TO 25 KT S OF FRONT W OF 170W. ALSO...N WINDS
20 TO 25 KT WITHIN 260 NM E OF FRONT S OF 21S.

.FRONT 26S170W TO 25S177W TO 25S175E MOVING N AND NE 15 KT.
.24 HOUR FORECAST FRONT 25S160W TO 22S170W 20S175E.
.48 HOUR FORECAST FRONT 25S151W TO 20S160W TO 16S175W.

.DISSIPATING FRONT 25S128W TO 21S129W TO 19S134W NEARLY
STATIONARY. N WINDS 20 TO 25 KT E OF FRONT S OF 28S. ISOLATED
TSTMS WITHIN 150 NM OF TROUGH.
.24 HOUR FORECAST FRONT DISSIPATED. WINDS DIMINISHED TO 20 KT
OR LESS.

.TROUGH FROM LOW DESCRIBED ABOVE AT 07S172E...FROM LOW TO
13S180W TO 14S165W 19S157W 19S145W NEARLY STATIONARY. ISOLATED
TSTMS WITHIN 120 NM OF TROUGH.

.24 HOUR FORECAST LOW DISSIPATED. TROUGH FROM 10S170E TO
13S175W TO 18S161W.
.48 HOUR FORECAST TROUGH 16S160W 12S180W 12S165E.

.RIDGE 25S152W TO 23S159W MOVING SE 10 KT.

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

.48 HOUR FORECAST SEAS 8 TO 9 FT S OF 23S W OF 165E.

.OTHERWISE...SEAS 8 FT OR LESS.

.SCATTERED MODERATE TSTMS BETWEEN 05S AND 18S W OF 170E.

$$

.FORECASTER LAU. HONOLULU HI.



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