National Weather Service United States Department of Commerce

000
FZPS40 PHFO 091030
HSFSP

HIGH SEAS FORECAST
NATIONAL WEATHER SERVICE HONOLULU HI
1130 UTC MON DEC 09 2019

SUPERSEDED BY NEXT ISSUANCE IN 6 HOURS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 09 2019.
24 HOUR FORECAST VALID 0600 UTC DEC 10 2019.
48 HOUR FORECAST VALID 0600 UTC DEC 11 2019.

.WARNINGS.

.NONE.

.SYNOPSIS AND FORECAST.

.FRONT FROM 23S120W TO 21S130W...CONTINUING AS A TROUGH TO 16S142W
TO 16S145W TO 17S150W. FRONT AND TROUGH NEARLY STATIONARY. SE TO E
WINDS 20 TO 30 KT S OF FRONT AND TROUGH W OF 123W. ISOLATED
MODERATE TSTMS S OF FRONT AND TROUGH...AND WITHIN 180 NM N OF
TROUGH.
.24 HOUR FORECAST FRONT WEAKENED TO TROUGH FROM 24S120W TO 22S132W
TO 20S139W TO 16S146W. SE TO E WINDS 20 TO 25 KT S OF TROUGH
BETWEEN 125W AND 140W...AND S OF 22S BETWEEN 140W AND 150W.
.48 HOUR FORECAST TROUGH FROM 24S120W TO 23S128W TO 19S137W TO
14S144W. SE TO E WINDS 20 TO 25 KT S OF TROUGH E OF 140W...AND S OF
20S BETWEEN 140W AND 150W.

.COLD FRONT JUST S OF AREA MOVING NE 25 KT.
.24 HOUR FORECAST FRONT FROM 25S175W TO 17S176W...CONTINUING AS A
TROUGH TO 12S177E TO 09S174E.
.48 HOUR FORECAST FRONT FROM 25S171W TO 18S173W...CONTINUING AS A
TROUGH TO 14S180E TO 10S169E.

.TROUGH FROM 25S178W TO 20S180E MOVING E SLOWLY. ISOLATED MODERATE
TSTMS S OF 22S BETWEEN 169W AND 174W.
.24 HOUR FORECAST TROUGH ABSORBED BY FRONT DESCRIBED IN SECTION
IMMEDIATELY ABOVE.

.TROUGH FROM 17S150W TO 14S169W TO 10S176W MOVING S SLOWLY.
SCATTERED MODERATE TO STRONG TSTMS WITHIN 240 NM OF TROUGH.
.24 HOUR FORECAST TROUGH FROM 19S150W TO 21S160W TO 17S170W TO
14S173W. E WINDS 20 TO 30 KT S OF TROUGH E OF 160W.
.48 HOUR FORECAST TROUGH FROM 19S152W TO 24S161W TO 19S169W. E TO
SE WINDS 20 TO 30 KT BETWEEN TROUGH AND 146W S OF 20S.

.TROUGH FROM 15S160E TO 16S164E TO 13S172E MOVING W SLOWLY AND
DISSIPATING. ISOLATED MODERATE TSTMS FROM 13S TO 21S W OF 165E.
.24 HOUR FORECAST TROUGH DISSIPATED.

.RIDGE FROM 18S120W TO 10S146W TO 05S175W NEARLY STATIONARY.

.RIDGE FROM 25S170W TO 19S175W MOVING E 10 KT.

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

.SEAS 8 TO 10 FT S OF A LINE FROM 22S120W TO 20S130W TO 20S149W.
SEAS 8 TO 9 FT FROM 16S TO 23S BETWEEN 160W AND 168W.
.24 HOUR FORECAST SEAS 8 TO 10 FT S OF 21S BETWEEN 129W AND 142W...
AND S OF 21S BETWEEN 148W AND 156W.
.48 HOUR FORECAST SEAS 8 TO 10 FT S OF 21S BETWEEN 151W AND 163W.
SEAS 8 TO 9 FT S OF 20S BETWEEN 129W AND 148W.

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

.ISOLATED MODERATE TSTMS WITHIN 150 NM OF A LINE FROM 02S178W TO
07S170E...AND FROM 02S TO 12S W OF 166E.

$$

.FORECASTER HOUSTON. HONOLULU HI.