High Seas Forecast
Issued by NWS

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000
FZPS40 PHFO 192315
HSFSP

HIGH SEAS FORECAST
NATIONAL WEATHER SERVICE HONOLULU HI
2330 UTC MON FEB 19 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SUPERSEDED BY NEXT ISSUANCE IN 6 HOURS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 1800 UTC FEB 19 2018.
24 HOUR FORECAST VALID 1800 UTC FEB 20 2018.
48 HOUR FORECAST VALID 1800 UTC FEB 21 2018.

.WARNINGS.

...GALE WARNING...
.LOW 23S155W 1005 MB MOVING SW 15 KT. SECOND LOW 15S165W 1006 MB
NEARLY STATIONARY. TROUGH FROM 25S155W TO FIRST LOW TO 18S157W TO
SECOND LOW TO 13S170E TO 15S160E NEARLY STATIONARY. WINDS 25 TO 35
KT FROM 21S TO 24S BETWEEN 151W AND 153W. WINDS 20 TO 25 KT
ELSEWHERE S OF A LINE FROM 23S145W TO 16S152W TO 16S154W. SCATTERED
MODERATE TO STRONG TSTMS N OF TROUGH W OF 180E...FROM 02S TO 14S
BETWEEN 173W AND 180W...FROM 04S TO 14S BETWEEN 167W AND 173W...AND
FROM 07S TO 15S BETWEEN 156W AND 167W. ISOLATED MODERATE TSTMS S OF
10S BETWEEN 156W AND 145W.
.24 HOUR FORECAST FIRST LOW S OF AREA. SECOND LOW LITTLE CHANGE.
TROUGH FROM 25S160W TO SECOND LOW TO 12S173W TO 12S169E. WINDS EASED
TO 20 KT OR LESS.
.48 HOUR FORECAST LOW 12S175W 1007 MB. TROUGH FROM 25S164W TO
18S165W TO 13S170W TO LOW TO 08S168E.

.SYNOPSIS AND FORECAST.

.TROUGH FROM 23S160E TO 25S162E MOVING W SLOWLY.
.24 HOUR FORECAST TROUGH MOVED W OF AREA.

.RIDGE FROM 18S143W T0 12S148W TO 05S170W TO 05S176E TO 00S166E
NEARLY STATIONARY.

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

.SEAS 12 TO 16 FT FROM 20S TO 24S BETWEEN 151W AND 153W. SEAS 8 TO
12 FT ELSEWHERE S OF 17S BETWEEN 149W AND 155W. SEAS 8 TO 9 FT S OF
20S BETWEEN 176W AND 173E.
.24 HOUR FORECAST SEAS 8 TO 9 FT S OF 23S BETWEEN 149W AND 155W.
.48 HOUR FORECAST SEAS LOWERED TO 8 FT OR LESS.

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

.SCATTERED MODERATE TSTMS FROM 10S TO 20S BETWEEN 131W AND 139W.
ISOLATED MODERATE TSTMS FROM 16S TO 23S BETWEEN 160W AND 161E...AND
ELSEWHERE FROM 10S TO 22S BETWEEN 129W AND 145W.

$$

.HONOLULU HI.


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