High Seas Forecast
Issued by NWS

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FZPS40 PHFO 230321
HSFSP

HIGH SEAS FORECAST
NATIONAL WEATHER SERVICE HONOLULU HI
0530 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SUPERSEDED BY NEXT ISSUANCE IN 6 HOURS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 0000 UTC JUL 23 2017.
24 HOUR FORECAST VALID 0000 UTC JUL 24 2017.
48 HOUR FORECAST VALID 0000 UTC JUL 25 2017.

.WARNINGS.

...GALE WARNING...
.TROUGH FROM 25S139W TO 20S144W TO 17S150W NEARLY STATIONARY.
WINDS 30 TO 35 KT S OF LINE FROM 20S132W TO 25S140W. WINDS 20 TO
30 KT ELSEWHERE E OF LINE FROM 08S132W TO 20S137W TO 25S142W.
WINDS 20 TO 25 KT S OF 18S BETWEEN 148W AND 158W. ISOLATED
MODERATE TSTMS S OF 21S BETWEEN 128W AND 140W.
.24 HOUR FORECAST TROUGH FROM 25S138W TO 18S142W. WINDS 30 TO 40
KT S OF LINE FROM 22S129W 23S137W 25S139W. WINDS 20 TO 30 KT
ELSEWHERE E OF LINE FROM 08S1352 TO 20S135W TO 25S142W.
.48 HOUR FORECAST TROUGH FROM 25S140W TO 20S145W. WINDS 20 TO 30
KT E OF LINE FROM 07S130W TO 20S135W TO 25S138W.

.SYNOPSIS AND FORECAST.

.FRONT FROM 25S172W TO 20S180W TO 15S170E MOVING E SLOWLY.
.24 HOUR FORECAST FRONT FROM 20S170W TO 18S177E.
.48 HOUR FORECAST FRONT FROM 25S167W TO 18S180W.

.RIDGE FROM 24S160E TO 22S176E MOVING SE SLOWLY.

.RIDGE FROM 25S165W TO 20S176W MOVING E SLOWLY.

.SE TO E WINDS 20 TO 25 KT FROM 04S TO 15S BETWEEN 160W AND 180W.
.24 HOUR FORECAST SE TO E WINDS 20 TO 25 KT FROM 07S TO 16S W OF
178E.
.48 HOUR FORECAST SE TO E WINDS 20 TO 25 KT FROM 08S TO 18S W OF
172E.

.SEAS 12 TO 14 FT S OF LINE FROM 20S120W TO 20S132W TO 25S140W
AND S OF 23S BETWEEN 165E AND 178W. SEAS 8 TO 12 FT ELSEWHERE S OF
LINE FROM 08S120W TO 04S140W TO 00S150W TO 00S160W TO 10S175E TO
20S160E.
.24 HOUR FORECAST SEAS 12 TO 18 FT S OF LINE FROM 15S120W TO
15S128W TO 20S132W TO 25S144W. SEAS 8 TO 12 FT ELSEWHERE S OF LINE
FROM 05S120W TO 05S140W TO 20S142W TO 25S150W. SEAS 8 TO 11 FT S
OF LINE FROM 00S160W TO 00S175W TO 08S170E TO 10S160E.
.48 HOUR FORECAST SEAS 12 TO 15 FT S OF LINE FROM 18S120W TO
18S132W TO 25S145W. SEAS 8 TO 12 FT ELSEWHERE S OF LINE FROM
03S120W TO 04S140W TO 20S145W TO 20S170W. SEAS 8 TO 10 FT FROM 04S
TO 18S W OF 178W.

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

.ISOLATED MODERATE TSTMS N OF 05S W OF 164E AND FROM 06S TO 10S
BETWEEN 169E AND 180E.

$$

.FORECASTER BURKE. HONOLULU HI.



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