High Seas Forecast
Issued by NWS

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000
FZPS40 PHFO 180325
HSFSP

HIGH SEAS FORECAST
NATIONAL WEATHER SERVICE HONOLULU HI
0530 UTC SUN FEB 18 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SUPERSEDED BY NEXT ISSUANCE IN 6 HOURS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 0000 UTC FEB 18 2018.
24 HOUR FORECAST VALID 0000 UTC FEB 19 2018.
48 HOUR FORECAST VALID 0000 UTC FEB 20 2018.

.WARNINGS.

...TROPICAL STORM WARNING...
.TROPICAL CYCLONE GITA S OF FORECAST AREA NEAR 26.8S 163.3E 975 MB
MOVING SW 10 KT. MAXIMUM SUSTAINED WINDS 70 KT GUSTS 85 KT. WINDS 25
TO 35 KT OVER FORECAST WATERS S OF 24S W OF 166E. SEAS 12 FT OR
HIGHER S OF 23S W OF 165E. WINDS 20 TO 25 KT ELSEWHERE S OF 23S W OF
171E. SEAS 8 TO 12 FT ELSEWHERE S OF 20S W OF 178E.
.24 HOUR FORECAST TROPICAL CYCLONE GITA FAR S OF FORECAST AREA.
WINDS EASED TO 20 KT OR LESS OVER FORECAST WATERS. SEAS 8 TO 11 FT S
OF 22S W OF 176E.
.48 HOUR FORECAST SEAS SUBSIDED TO 8 FT OR LESS. MORE SEAS DESCRIBED
BELOW.

.SEE LATEST BULLETINS ISSUED BY TCWC WELLINGTON...AND FROM JTWC
UNDER WMO HEADER /WTPS31 PGTW/ FOR MORE INFORMATION.

...GALE WARNING...
.LOW 17S162W 1006 MB NEARLY STATIONARY. TROUGH FROM LOW TO 14S177W
TO 16S172E NEARLY STATIONARY. WINDS 20 TO 25 KT AND SEAS 8 TO 9 FT
WITHIN 210 NM OF LOW NE QUADRANT. ISOLATED MODERATE TO STRONG TSTMS
FROM 06S TO 10S BETWEEN 162W AND 175W...AND FROM 10S TO 14S BETWEEN
155W AND 164W. ISOLATED MODERATE TSTMS FROM 14S TO 20S BETWEEN 152W
AND 158W.
.24 HOUR FORECAST NEW LOW 17S156W 1004 MB. TROUGH FROM LOW TO
16S174W TO 12S169E. WINDS 20 TO 30 KT AND SEAS 8 TO 11 FT WITHIN 270
NM OF LOW NE AND E QUADRANTS.
.36 HOUR FORECAST LOW 20S155W 1003 MB. TROUGH FROM LOW TO 17S161W TO
16S173W TO 12S172E. WINDS 25 TO 35 KT AND SEAS 8 TO 15 FT S OF 14S
BETWEEN 151W AND 155W. NW TO N WINDS 20 TO 25 KT FROM 10S TO 14S
BETWEEN 154W AND 158W.
.48 HOUR FORECAST LOW 23S155W 1004 MB. TROUGH FROM LOW TO 18S160W TO
15S176W TO 11S170E. MAINLY N TO NE WINDS 25 TO 35 KT AND SEAS 8 TO
16 FT S OF 16S BETWEEN 151W AND 154W. N TO NE WINDS 20 TO 25 KT FROM
12S TO 16S BETWEEN 153W AND 156W.

.SYNOPSIS AND FORECAST.

.TROUGH FROM 25S163W TO 20S166W MOVING W 10 KT. ISOLATED MODERATE
TSTMS BETWEEN TROUGH AND 151W.
.24 HOUR FORECAST TROUGH DISSIPATED.

.RIDGE FROM 12S152W TO 06S175W TO 05S175E TO 01S164E NEARLY
STATIONARY.

.RIDGE FROM 25S178W TO 18S179W MOVING WSW SLOWLY.

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

.THE FOLLOWING ARE SEAS NOT ASSOCIATED WITH T.C. GITA OR THE LOWS
DESCRIBED IN THE GALE WARNING.

.SEAS 8 TO 10 FT S OF 22S BETWEEN 165W AND 174W.
.24 HOUR FORECAST SEAS 8 TO 9 FT S OF 22S BETWEEN 170W AND 180W.
.48 HOUR FORECAST SEAS 8 TO 9 FT S OF 21S BETWEEN 174E AND 179W.

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

.ISOLATED MODERATE TSTMS FROM 10S TO 14S BETWEEN 134W AND 139W...AND
S OF 22S BETWEEN 129W AND 133W.

$$

.FORECASTER KINEL. HONOLULU HI.



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