High Seas Forecast
Issued by NWS

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000
FZPS40 PHFO 202146
HSFSP

HIGH SEAS FORECAST
NATIONAL WEATHER SERVICE HONOLULU HI
2330 UTC SAT JUL 20 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SUPERSEDED BY NEXT ISSUANCE IN 6 HOURS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 1800 UTC JUL 20 2019.
24 HOUR FORECAST VALID 1800 UTC JUL 21 2019.
48 HOUR FORECAST VALID 1800 UTC JUL 22 2019.

.WARNINGS.

...GALE WARNING...
.LOW 24S174W 1007 MB MOVING SSE 15 KT. FRONT FROM LOW TO 20S176W
TO 15S177E THENCE TROUGH TO 10S170E TO 06S160E MOVING E 20 KT.
WINDS 20 TO 30 KT S OF 20S BETWEEN 169W AND 180W. SCATTERED
MODERATE TSTMS S OF 22S BETWEEN 170W AND 175W. ISOLATED MODERATE
TSTMS ELSEWHERE WITHIN 90 NM OF FRONT AND TROUGH.
.24 HOUR FORECAST LOW MOVED S OF AREA. FRONT FROM 25S166W TO
18S170W TO 12S175E. WINDS 30 TO 40 KT S OF 22S BETWEEN 164W AND
169W. WINDS 20 TO 30 KT ELSEWHERE S OF LINE FROM 25S175E TO
20S176W TO 18S170W TO 18S162W TO 25S160W.
.48 HOUR FORECAST FRONT FROM 25S157W TO 20S162W TO 16S170W TO
12S180W. WINDS 30 TO 40 KT S OF 22S BETWEEN 150W AND 160W. WINDS
20 TO 30 KT ELSEWHERE S OF LINE FROM 25S174W TO 20S165W TO 20S148W
TO 25S144W.

.SYNOPSIS AND FORECAST.

.FRONT FROM 22S120W TO 15S130W TO 12S138W THENCE TROUGH TO 08S164W
NEARLY STATIONARY. ISOLATED MODERATE TSTMS WITHIN 90 NM OF TROUGH
W OF 155W.
.24 HOUR FORECAST FRONT FROM 23S120W TO 18S130W THENCE TROUGH TO
10S140W.
.48 HOUR FORECAST FRONT FROM 24S120W TO 18S130W TO 13S140W.

.FRONT FROM 25S153W TO 20S157W TO 17S163W MOVING E SLOWLY AND
DISSIPATING.
.24 HOUR FORECAST FRONT DISSIPATED.

.SE WINDS 20 TO 25 KT FROM 15S TO 20S W OF 175E.
.24 HOUR FORECAST SE WINDS 20 TO 25 KT FROM 12S TO 18S W PF 177E.
.48 HOUR FORECAST SE WINDS 20 TO 25 KT FROM 10S TO 14S W OF 172E.

.RIDGE FROM 25S144W TO 22S128W MOVING E SLOWLY.

.RIDGE FROM 25S147W TO 22S153W MOVING E SLOWLY.

.RIDGE FROM 25S163W TO 21S158W MOVING SE 20 KT.

.RIDGE FROM 25S161E TO 20S170E TO 18S176E MOVING E 10 KT.

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

.SEAS 12 TO 14 FT S OF 24S BETWEEN 128W AND 135W. SEAS 8 TO 12 FT
ELSEWHERE S OF LINE FROM 25S142W TO 10S137W TO 10S129W TO 18S120W.
SEAS 8 TO 10 FT S OF 18S W OF 178W.
.24 HOUR FORECAST SEAS 12 TO 14 FT S OF 23S BETWEEN 172E AND
177W. SEAS 8 TO 12 ELSEWHERE S OF LINE FORM 15S160E TO 15S177E TO
20S175W TO 20S164W AND S OF LINE FROM 25S150W TO 12S138W TO
12S120W.
.48 HOUR FORECAST SEAS 12 TO 14 FT S OF 23S BETWEEN 150W AND
172W. SEAS 8 TO 12 FT ELSEWHERE S OF 18S E OF 170E. SEAS 8 TO 10
FT FROM 10S TO 18S BETWEEN 128W AND 140W.

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

.ISOLATED MODERATE TSTMS N OF 04S BETWEEN 164E AND 180E..

$$

.FORECASTER BURKE. HONOLULU HI.


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