High Seas Forecast
Issued by NWS

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FZPS40 PHFO 251505
HSFSP

HIGH SEAS FORECAST
NATIONAL WEATHER SERVICE HONOLULU HI
1730 UTC TUE JUL 25 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SUPERSEDED BY NEXT ISSUANCE IN 6 HOURS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 1200 UTC JUL 25 2017.
24 HOUR FORECAST VALID 1200 UTC JUL 26 2017.
48 HOUR FORECAST VALID 1200 UTC JUL 27 2017.

.WARNINGS.

.NONE.

.SYNOPSIS AND FORECAST.

.LOW 24S147W 1015 MB NEARLY STATIONARY. FRONT 25S140W 22S139W
18S143W NEARLY STATIONARY. WINDS 20 TO 30 KT SE OF LINE 04S120W
10S131W 20S135W 25S139W. SEE SEAS BELOW. ISOLATED MODERATE
TSTMS S OF 21S BETWEEN FRONT AND 127W.
.24 HOUR FORECAST LOW DISSIPATED. TROUGH 25S140W 21S141W 19S142W.
WINDS 20 TO 25 KT S OF 22S E OF 130W. SEE SEAS BELOW.
.48 HOUR FORECAST TROUGH DISSIPATED. WINDS 20 TO 25 KT S OF 05S
E OF 137W.

.FRONT 25S164W 20S173W 16S180W THENCE TROUGH TO 12S170E
07S160E NEARLY STATIONARY. SE WINDS 20 TO 25 KT S OF TROUGH
AND N OF 18S. SEE SEAS BELOW. ISOLATED MODERATE TSTMS WITHIN
90 NM OF TROUGH W OF 166E.
.24 HOUR FORECAST FRONT 25S163W 19S173W THENCE TROUGH TO
13S172E 08S160E. E TO SE WINDS 20 TO 25 KT FROM 08S TO 17S W
OF 175E. SEE SEAS BELOW.
.48 HOUR FORECAST FRONT 25S154W 15S165W. E TO SE WINDS 20 TO
25 KT FROM 08S TO 17S W OF 173E.

.RIDGE 24S160E 20S177W NEARLY STATIONARY AND BUILDING E.

.RIDGE 25S157W 21S166W MOVING E SLOWLY.

.SEAS 12 TO 15 FT S OF 22S BETWEEN 131W AND 140W. SEAS 8 TO 12 FT
ELSEWHERE S OF LINE 02S120W 04S138W 20S140W 15S165W 25S165W. SEAS
8 TO 10 FT W OF 165E BETWEEN 08S AND 15S. SEAS 8 TO 9 FT FROM 02S
AND 18S BETWEEN 178W AND 170E.
.24 HOUR FORECAST SEAS 8 TO 10 FT S OF LINE 04S120W 02S130W
10S140W 20S140W 18S154W 25S161W. SEAS 8 TO 9 FT W OF 176E BETWEEN
08S AND 14S.
.48 HOUR FORECAST SEAS 8 TO 10 FT S OF 03S AND E OF 139W. SEAS 8
TO 9 FT W OF 171E BETWEEN 05S AND 18S...S OF 20S BETWEEN 180E AND
167E...S OF 24S BETWEEN 160W AND 167W...AND FROM 03S TO 11S
BETWEEN 146W AND 155W.

.REMAINDER OF AREA WINDS 20 KT OR LESS. SEAS 8 FT OR LESS.

.SCATTERED MODERATE TSTMS N OF 06S BETWEEN 178E AND 167E.

$$

.FORECASTER POWELL. HONOLULU HI.



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