High Seas Forecast
Issued by NWS

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000
FZPS40 PHFO 241025
HSFSP

HIGH SEAS FORECAST
NATIONAL WEATHER SERVICE HONOLULU HI
1130 UTC WED MAY 24 2017

SUPERSEDED BY NEXT ISSUANCE IN 6 HOURS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 MAY 24 2017.
24 HOUR FORECAST VALID 0600 UTC MAY 25 2017.
48 HOUR FORECAST VALID 0600 UTC MAY 26 2017.

.WARNINGS.

...GALE WARNING...
.LOW 21S171W 1005 MB MOVING ESE 25 KT...EXPECTED TO ACCELERATE LATER
TOWARD THE SE. FRONT FROM LOW TO 14S175W TO 11S175E THENCE TROUGH TO
06S160E. FRONT MOVING NE SLOWLY AND TROUGH NEARLY STATIONARY.
STATIONARY FRONT FROM LOW TO 23S160W TO 22S152W TO 23S146W TO
25S142W...WILL MOVE S OF FORECAST AREA OVER NEXT 24 HOURS. WINDS 30
TO 40 KT S OF 21S BETWEEN 158W AND 173W. WINDS 20 TO 30 KT ELSEWHERE
S OF LINE FROM 23S148W TO 21S158W TO 17S171W TO 18S177W. ISOLATED
MODERATE TSTMS WITHIN 90 NM OF FRONT AND TROUGH N OF 12S...AND FROM
19S TO 24S BETWEEN 163W AND 169W.
.24 HOUR FORECAST LOW S OF FORECAST AREA. FRONT FROM 25S157W TO
20S163W TO 12S176W TO 10S170E TO 07S160E. WINDS 20 TO 30 KT S OF
LINE FROM 24S148W TO 21S160W TO 23S174W.
.48 HOUR FORECAST FRONT FROM 25S148W TO 18S161W TO 12S175W. WINDS 20
TO 25 KT S OF 23S BETWEEN 146W AND 164W.

.SYNOPSIS AND FORECAST.

.TROUGH FROM 25S134W TO 19S136W MOVING W 10 KT N OF 22S.
.24 HOUR FORECAST DISSIPATING TROUGH FROM 25S132W TO 19S139W.
.48 HOUR FORECAST TROUGH DISSIPATED.

.TROUGH FROM 04S142W TO 10S137W MOVING W 10 KT.
.24 HOUR FORECAST TROUGH FROM 05S148W TO 09S146W.
.48 HOUR FORECAST TROUGH FROM 05S154W TO 09S151W.

.TROUGH FROM 07S165W TO 14S164W MOVING W 10 KT. ISOLATED MODERATE
TSTMS FROM 09S TO 14S BETWEEN 162W AND 164W.
.24 HOUR FORECAST TROUGH DISSIPATED.

.TROUGH FROM 25S164E TO 19S166E NEARLY STATIONARY.
.24 HOUR FORECAST NEW FRONT FROM 25S170E TO 18S167E TO 14S160E.
.48 HOUR FORECAST FRONT FROM 25S174E TO 20S170E TO 14S160E.

.HIGH 07S175E 1009 MB NEARLY STATIONARY. RIDGE FROM 06S164E TO HIGH
TO 07S176W TO 09S171W TO 12S166W.
.24 HOUR FORECAST HIGH DISSIPATED.

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

.SEAS 12 TO 17 FT S OF LINE FROM 24S147W TO 20S170W TO 23S177W. SEAS
8 TO 12 FT ELSEWHERE S OF LINE FROM 24S134W TO 16S151W TO 13S158W TO
13S169W TO 17S173E TO 24S168E. SEAS 8 TO 9 FT FROM 13S TO 16S E OF
123W.
.24 HOUR FORECAST SEAS 8 TO 13 FT S OF LINE FROM 24S134W TO 19S141W
TO 21S161W TO 17S169W TO 21S179E. SEAS 8 TO 9 FT FROM 10S TO 19S E
OF 123W.
.48 HOUR FORECAST SEAS 8 TO 10 FT S OF 21S BETWEEN 156W AND 176W...
AND FROM 09S TO 23S E OF 133W. SEAS 8 TO 9 FT FROM 19S TO 21S
BETWEEN 163W AND 174W.

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

.ISOLATED MODERATE TSTMS FROM 03S TO 04S BETWEEN 155W AND 158W...AND
N OF 03S BETWEEN 165W AND 168W.

$$

.FORECASTER KINEL. HONOLULU HI.



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