High Seas Forecast
Issued by NWS

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000
FZPS40 PHFO 131056
HSFSP

HIGH SEAS FORECAST
NATIONAL WEATHER SERVICE HONOLULU HI
1130 UTC WED DEC 13 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SUPERSEDED BY NEXT ISSUANCE IN 6 HOURS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 DEC 13 2017.
24 HOUR FORECAST VALID 0600 UTC DEC 14 2017.
48 HOUR FORECAST VALID 0600 UTC DEC 15 2017.

.WARNINGS.

.NONE.

.SYNOPSIS AND FORECAST.

.FRONT FROM 24S120W TO 19S134W TO 21S140W TO 20S145W TO 25S153W MOVING
E 10 KT E OF 124W AND NEARLY STATIONARY ELSEWHERE. NW TO N WINDS 20 TO
25 KT S OF 23S E OF 121W. ISOLATED MODERATE TSTMS FROM 20S TO 23S
BETWEEN 125W AND 154W.
.24 HOUR FORECAST FRONT FROM 23S120W TO 19S130W TO 20S140W TO
23S148W. ASSOCIATED WINDS DIMINISHED TO 20 KT OR LESS.
.48 HOUR FORECAST FRONT FROM 24S120W TO 20S137W TO 19S140W TO
25S149W. E WINDS 20 TO 25 KT WITHIN 180 NM S OF FRONT BETWEEN 132W
AND 137W.

.TROUGH FROM 23S157W TO 14S167W TO 13S173W TO 11S173E TO 14S160E
NEARLY STATIONARY. SCATTERED MODERATE TSTMS WITHIN 270 NM S OF TROUGH
W OF 171E. ISOLATED MODERATE TSTMS WITHIN 180 NM N OF TROUGH BETWEEN
170W AND 176E...AND FROM 15S TO 19S BETWEEN 157W AND 163W.
.24 HOUR FORECAST TROUGH FROM 22S157W TO 12S171W TO 13S173E TO
15S160E.
.48 HOUR FORECAST TROUGH FROM 25S153W TO 16S162W TO 12S180E TO
15S160E. WINDS 20 TO 25 KT FROM 20S TO 23S W OF 164E.

.TROUGH FROM 13S154W TO 14S144W MOVING SW SLOWLY. ISOLATED
MODERATE TSTMS BETWEEN TROUGH AND 11S BETWEEN 146W AND 149W.
.24 HOUR FORECAST TROUGH FROM 11S153W TO 18S146W.
.48 HOUR FORECAST TROUGH DISSIPATED.

.RIDGE FROM 17S120W TO 10S145W TO 07S165W TO 05S180W TO 03S163E
NEARLY STATIONARY.

.RIDGE FROM 25S178E TO 20S175W TO 18S169W NEARLY STATIONARY.

.SEAS 8 TO 10 FT SE OF A LINE FROM 20S120W TO 25S128W.
.24 HOUR FORECAST SEAS DIMINISHED TO 8 FT OR LESS ENTIRE AREA.
.48 HOUR FORECAST SEAS 8 FT OR LESS ENTIRE AREA.

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

.ISOLATED MODERATE TSTMS FROM 08S TO 11S BETWEEN 158W AND 162W.

$$

.FORECASTER BIRCHARD. HONOLULU HI.



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