High Seas Forecast
Issued by NWS

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000
FZPS40 PHFO 171025
HSFSP

HIGH SEAS FORECAST
NATIONAL WEATHER SERVICE HONOLULU HI
1130 UTC TUE JAN 17 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SUPERSEDED BY NEXT ISSUANCE IN 6 HOURS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 JAN 17 2017.
24 HOUR FORECAST VALID 0600 UTC JAN 18 2017.
48 HOUR FORECAST VALID 0600 UTC JAN 19 2017.

.WARNINGS.

...GALE WARNING...
.LOW 21S156W 1004 MB MOVING NE SLOWLY. TROUGH FROM LOW TO 14S175W TO
15S170E TO 13S160E NEARLY STATIONARY. WINDS 20 TO 30 KT WITHIN 90 NM
OF LINE FROM 13S169W TO 16S154W TO 24S153W TO 25S158W. ISOLATED TO
LOCALLY SCATTERED MODERATE TO STRONG TSTMS WITHIN 330 NM N AND NE OF
LOW AND TROUGH E OF 179W. ISOLATED MODERATE TSTMS BOUNDED BY 08S160E
TO 11S173E TO 19S173E TO 20S168E TO 16S160E TO 08S160E...AND WITHIN
90 NM OF 06S178E.
.24 HOUR FORECAST LOW 19S153W 1003 MB. TROUGHS FROM LOW TO 20S160W
TO 25S164W...AND FROM LOW TO 15S159W. WINDS 20 TO 35 KT WITHIN 90 NM
OF LINE FROM 11S166W TO 13S154W TO 21S153W. E WINDS 20 TO 25 KT S OF
23S BETWEEN 150W AND 161W.
.48 HOUR FORECAST LOW 23S151W 1000 MB. SECOND LOW DEVELOPING NEAR
17S155W 1003 MB. TROUGH FROM 25S148W TO FIRST LOW TO SECOND LOW TO
19S162W TO 25S166W. WINDS 30 TO 45 KT WITHIN 90 NM OF LINE FROM
12S155W TO 18S151W TO 24S148W. WINDS 20 TO 30 KT ELSEWHERE WITHIN
150 NM OF LINE FROM 10S156W TO 18S150W TO 24S148W.

.SYNOPSIS AND FORECAST.

.LOW 24S171W 1005 MB NEARLY STATIONARY.
.24 HOUR FORECAST 23S170W 1004 MB.
.48 HOUR FORECAST 21S170W 1005 MB.

.LOW 20S127W 1010 MB MOVING SW SLOWLY. TROUGH FROM 23S120W TO LOW TO
15S137W TO 17S150W NEARLY STATIONARY. ISOLATED MODERATE TSTMS FROM
11S TO 19S BETWEEN 135W AND 150W...AND WITHIN 255 NM N AND NE OF LOW
AND TROUGH E OF 135W.
.24 HOUR FORECAST LOW DISSIPATED. TROUGH FROM 23S120W TO 21S131W TO
19S146W.
.48 HOUR FORECAST WEAKENING TROUGH FROM 21S120W TO 23S133W.

.RIDGE FROM 15S120W TO 07S155W TO 06S180E TO 05S160E NEARLY
STATIONARY.

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

.SEAS 8 TO 11 FT S OF 22S BETWEEN 153W AND 160W.
.24 HOUR FORECAST SEAS 12 TO 14 FT FROM 17S TO 19S BETWEEN 152W AND
154W. SEAS 8 TO 12 FT ELSEWHERE S OF 11S BETWEEN 151W AND 157W. SEAS
8 TO 11 FT S OF 21S BETWEEN 157W AND 162W. SEAS 8 TO 10 FT FROM 10S
TO 13S BETWEEN 157W AND 166W.
.48 HOUR FORECAST SEAS 12 TO 24 FT FROM 21S TO 24S BETWEEN 147W AND
152W. SEAS 8 TO 12 FT ELSEWHERE S OF A LINE FROM 10S161W TO 10S155W
TO 16S146W.

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

.ISOLATED MODERATE TSTMS S OF 22S BETWEEN 138W AND 156W.

$$

.FORECASTER KINEL. HONOLULU HI.



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