High Seas Forecast
Issued by NWS

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226
FZPS40 PHFO 211525
HSFSP

HIGH SEAS FORECAST
NATIONAL WEATHER SERVICE HONOLULU HI
1730 UTC TUE JAN 21 2020

SUPERSEDED BY NEXT ISSUANCE IN 6 HOURS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 21 2020.
24 HOUR FORECAST VALID 1200 UTC JAN 22 2020.
48 HOUR FORECAST VALID 1200 UTC JAN 23 2020.

.WARNINGS.

.NONE.

.SYNOPSIS AND FORECAST.

.FRONT FROM 25S156W TO 20S163W THENCE TROUGH TO 13S180E TO 11S170E
TO 11S160E. FRONT AND TROUGH NEARLY STATIONARY. NW TO N WINDS 20 TO
30 KT WITHIN 150 NM NE AND E OF FRONT AND TROUGH S OF 13S. W TO NW
WINDS 20 TO 30 KT FROM 05S TO 08S BETWEEN 178E AND 178W. ISOLATED
MODERATE TO LOCALLY STRONG TSTMS IN AREA BETWEEN TROUGH AND FRONT...
AND LINE FROM 03S160E TO 05S171W TO 17S160W TO 25S155W. ISOLATED
MODERATE TSTMS ELSEWHERE FROM 13S TO 15S BETWEEN 177E AND 178W.
.24 HOUR FORECAST FRONT FROM 25S155W TO 20S162W THENCE TROUGH TO
16S168W TO 12S180E TO 11S160E. NW TO N WINDS 20 TO 30 KT WITHIN 150
NM NE AND E OF FRONT AND TROUGH S OF 16S.
.48 HOUR FORECAST NEW LOW 19S165W 1005 MB. FRONT FROM 25S156W TO LOW
THENCE TROUGH TO 13S170W TO 12S180E TO 08S166E TO 12S160E. WINDS 20
TO 30 KT S OF 19S BETWEEN 163W AND 166W. NW TO N WINDS 20 TO 25 KT
ELSEWHERE WITHIN 150 NM NE AND E OF FRONT AND TROUGH S OF 11S. E TO
SE WINDS 20 TO 25 KT S OF 22S BETWEEN 166W AND 174W.

.WEAK FRONT FROM 25S162W TO 21S175W TO 22S176E MOVING NNE 10 KT.
.24 HOUR FORECAST DISSIPATING FRONT FROM 23S165W TO 20S174W TO
19S177E.
.48 HOUR FORECAST FRONT DISSIPATED. WEAK REMNANT TROUGH FROM 21S174W
TO 17S180E TO 17S175E.

.TROUGH FROM 25S127W TO 20S131W MOVING W 10 KT. SCATTERED MODERATE
TSTMS S OF 18S BETWEEN 125W AND 130W.
.24 HOUR FORECAST WEAK TROUGH FROM 25S131W TO 21S135W.
.48 HOUR FORECAST TROUGH DISSIPATED.

.RIDGE FROM 25S138W TO 12S160W TO 01S174E NEARLY STATIONARY.

.WINDS 20 KT OR LESS REST OF FORECAST AREA.

.SEAS 8 TO 12 FT IN AREA BETWEEN LINE FROM 25S149W TO 16S161W TO
12S171W...AND LINE FROM 25S174E TO 23S178E TO 22S165W TO 12S175W.
.24 HOUR FORECAST SEAS 8 TO 12 FT IN AREA S OF LINE FROM 25S151W TO
15S162W TO 13S169W TO 18S174W TO 22S172E. SEAS 8 TO 9 FT S OF 24S E
OF 132W.
.48 HOUR FORECAST SEAS 12 TO 15 FT FROM 18S TO 21S BETWEEN 162W AND
166W. SEAS MAINLY 8 TO 12 FT ELSEWHERE S OF LINE FROM 25S150W TO
09S166W TO 07S175W. SEAS 8 TO 9 FT S OF 19S BETWEEN 173E AND
175W...AND FROM 16S TO 19S BETWEEN 171E AND 177E.

.SEAS 8 FT OR LESS REST OF FORECAST AREA.

.SCATTERED TO LOCALLY ISOLATED MODERATE TSTMS FROM 08S TO 16S
BETWEEN 142W AND 149W.

$$

.FORECASTER KINEL. HONOLULU HI.



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