High Seas Forecast
Issued by NWS

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000
FZPS40 PHFO 221533
HSFSP

HIGH SEAS FORECAST
NATIONAL WEATHER SERVICE HONOLULU HI
1730 UTC MON JAN 22 2018

SUPERSEDED BY NEXT ISSUANCE IN 6 HOURS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 1200 UTC JAN 22 2018.
24 HOUR FORECAST VALID 1200 UTC JAN 23 2018.
48 HOUR FORECAST VALID 1200 UTC JAN 24 2018.

.WARNINGS.

.NONE.

.SYNOPSIS AND FORECAST.

.TROUGH FROM 25S165W TO 16S172W TO 10S174E TO 06S160E MOVING SW
SLOWLY. E TO NE WINDS 20 TO 30 KT SEAS 8 TO 12 FT BETWEEN TROUGH
AND 155W S OF 20S. SE WINDS 20 TO 25 KT SEAS 8 TO 9 FT BETWEEN
TROUGH AND 175W S OF 20S. WIDELY SCATTERED MODERATE TSTMS WITHIN
300 NM N AND E OF TROUGH E OF 180W.
.24 HOUR FORECAST TROUGH FROM 25S167W TO 17S172W TO 12S175E TO
10S160E. E TO NE WINDS 20 TO 30 KT SEAS 8 TO 11 FT BETWEEN TROUGH
AND 159W S OF 23S. SE WINDS DIMINISHED TO 20 KT OR LESS AND SEAS
LOWERED TO 8 FT OR LESS W OF TROUGH.
.48 HOUR FORECAST TROUGH FROM 25S172W TO 16S178W TO 13S175E TO
13S160E. E TO NE WINDS DIMINISHED 20 KT OR LESS...SEAS LOWERED TO
8 FT OR LESS.

.RIDGE FROM 25S172E TO 14S160E MOVING SW SLOWLY AND WEAKENING.

.RIDGE FROM 20S154W TO 06S175W TO 04S170E NEARLY STATIONARY.

.E WINDS 20 TO 25 KT S OF 20S E OF 130W.
.24 HOUR FORECAST E WINDS DIMINISHED TO 20 KT OR LESS.

.48 HOUR FORECAST E WINDS 20 TO 25 KT S OF 20S W OF 163E.

.WINDS 20 KT OR LESS REMAINDER OF FORECAST AREA.

.SEAS 8 TO 9 FT S OF 12S E OF 130W.
.24 HOUR FORECAST SEAS 8 TO 9 FT S OF 15S E OF 130W.
.48 HOUR FORECAST SEAS LOWERED TO 8 FT OR LESS.

.SCATTERED MODERATE ISOLATED STRONG TSTMS BETWEEN 03S AND 13S FROM
175E TO 162E. SCATTERED TSTMS S OF 13S BETWEEN 132W AND 145W.


$$

.FORECASTER LAU. HONOLULU HI.


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