High Seas Forecast
Issued by NWS

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FZPS40 PHFO 231535
HSFSP

HIGH SEAS FORECAST
NATIONAL WEATHER SERVICE HONOLULU HI
1730 UTC SUN JUL 23 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SUPERSEDED BY NEXT ISSUANCE IN 6 HOURS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 23 2017.
24 HOUR FORECAST VALID 1200 UTC JUL 24 2017.
48 HOUR FORECAST VALID 1200 UTC JUL 25 2017.

.WARNINGS.

...GALE WARNING...
.TROUGH FROM 25S140W TO 23S141W TO 20S144W NEARLY STATIONARY. WINDS
30 TO 35 KT S OF 23S BETWEEN 130W AND 139W...AND FROM 20S TO 22S
BETWEEN 123W AND 128W. WINDS 20 TO 30 KT ELSEWHERE E OF LINE FROM
08S134W TO 19S134W TO 24S140W TO 25S140W. ISOLATED MODERATE TSTMS S
OF 19S BETWEEN TROUGH AND 125W.
.24 HOUR FORECAST TROUGH FROM 25S139W TO 20S143W. WINDS 30 TO 35 KT
S OF LINE FROM 22S131W TO 23S137W TO 25S139W. WINDS 20 TO 30 KT
ELSEWHERE E OF 134W BETWEEN 08S AND 21S...AND E OF LINE FROM 21S137W
TO 24S138W TO 25S142W.
.48 HOUR FORECAST TROUGH FROM 25S139W TO 20S144W. WINDS 20 TO 30 KT
E OF LINE FROM 08S132W TO 25S135W.

.SYNOPSIS AND FORECAST.

.FRONT FROM 25S171W TO 17S178E MOVING E SLOWLY. ISOLATED MODERATE
TSTMS WITHIN 60 NM OF FRONT S OF 23S.
.24 HOUR FORECAST FRONT FROM 25S167W TO 18S180W.
.48 HOUR FORECAST FRONT FROM 25S165W TO 22S167W TO 17S178W.

.RIDGE FROM 24S160E TO 22S171E TO 22S179E NEARLY STATIONARY.

.RIDGE FROM 25S161W TO 20S174W MOVING E SLOWLY AND ERODING FROM THE
W.

.SE TO E WINDS 20 TO 25 KT FROM 10S TO 17S W OF 171E.
.24 HOUR FORECAST SE TO E WINDS 20 TO 25 KT FROM 08S TO 17S W OF
174E.
.48 HOUR FORECAST LITTLE CHANGE.

.SEAS 12 TO 18 FT S OF LINE FROM 18S120W TO 21S134W TO 25S141W. SEAS
8 TO 13 FT ELSEWHERE S OF 06S E OF 140W...S OF 21S BETWEEN 140W AND
147W...AND S OF LINE FROM 25S166W TO 20S170W TO 16S172E TO 20S164E.
SEAS 8 TO 10 FT S OF 13S W OF 164E...AND IN AREA BOUNDED BY 00S171W
00S153W 04S140W 14S164W 11S170E 00S171W. SEAS 8 TO 9 FT FROM 19S TO
22S BETWEEN 149W AND 157W...AND S OF 16S BETWEEN 157W AND 161W.
.24 HOUR FORECAST SEAS 12 TO 18 FT S OF LINE FROM 13S123W TO 13S127W
TO 25S142W. SEAS 8 TO 13 FT S OF 05S E OF 138W...AND S OF 21S
BETWEEN 138W AND 150W. SEAS 8 TO 10 FT W OF 164E BETWEEN 10S AND
18S...S OF LINE FROM 08S170E TO 03S180E...AND S OF LINE FROM
19S180W TO 16S164W TO 25S157W. SEAS 8 TO 9 FT FROM 03S TO 12S
BETWEEN 177W AND 180W...AND FROM 00S TO 08S BETWEEN 165W AND 173W.
.48 HOUR FORECAST SEAS 8 TO 13 FT S OF 03S E OF 138W. SEAS 8 TO 10
FT S OF 21S BETWEEN 138W AND 163W...AND W OF 165E BETWEEN 11S AND
16S. SEAS 8 TO 9 FT FROM 07S TO 10S BETWEEN 163E AND 167E...AND FROM
08S TO 16S BETWEEN 168E AND 179E.

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

.SCATTERED MODERATE TO STRONG TSTMS FROM 05S TO 10S BETWEEN 166E
AND 172E...AND FROM 02S TO 04S BETWEEN 175W AND 180W. ISOLATED
MODERATE TSTMS N OF 10S W OF 179E...N OF 05S BETWEEN 179E AND
169W...AND FROM 03S TO 07S BETWEEN 145W AND 155W.

$$

.HONOLULU HI.



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