High Seas Forecast
Issued by NWS

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000
FZPN40 PHFO 230325
HSFNP

HIGH SEAS FORECAST
NATIONAL WEATHER SERVICE HONOLULU HI
0500 UTC THU NOV 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SUPERSEDED BY NEXT ISSUANCE IN 6 HOURS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

NORTH PACIFIC EQUATOR TO 30N BETWEEN 140W AND 160E

SYNOPSIS VALID 0000 UTC NOV 23 2017.
24 HOUR FORECAST VALID 0000 UTC NOV 24 2017.
48 HOUR FORECAST VALID 0000 UTC NOV 25 2017.

.WARNINGS.

.NONE.

.SYNOPSIS AND FORECAST.

.TROUGH FROM 28N168E TO 22N170E TO 18N168E TO 13N164E NEARLY
STATIONARY. SEE WINDS DESCRIBED BELOW. ISOLATED MODERATE TSTMS FROM
23N TO 28N BETWEEN 172E AND 177E...FROM 14N TO 16N BETWEEN 176E AND
180E...AND WITHIN 60 NM OF POINT 15N171E.
.24 HOUR FORECAST TROUGH FROM 30N170E TO 23N171E TO 18N167E. SEE
WINDS DESCRIBED BELOW.
.48 HOUR FORECAST TROUGH FROM 30N168E TO 17N167E. SEE WINDS
DESCRIBED BELOW.

.TROUGH FROM 22N140W TO 17N144W NEARLY STATIONARY. ISOLATED MODERATE
TSTMS WITHIN 60 NM OF LINE FROM 15N147W TO 12N153W.
.24 HOUR FORECAST LITTLE CHANGE.
.48 HOUR FORECAST TROUGH MERGED WITH FRONT DESCRIBED IMMEDIATELY
BELOW.

.FRONT FROM 29N140W TO 20N154W MOVING SE SLOWLY.
.24 HOUR FORECAST FRONT FROM 27N140W TO 19N154W.
.48 HOUR FORECAST FRONT FROM 23N140W TO 15N145W.

.FRONT FROM 30N162E TO 28N160E NEARLY STATIONARY.
.24 HOUR FORECAST FRONT DISSIPATED.

.TROUGH FROM 13N142W TO 08N147W MOVING W 10 KT. ISOLATED MODERATE
TSTMS WITHIN 60 NM E OF TROUGH.
.24 HOUR FORECAST TROUGH DISSIPATED.

.RIDGE FROM 30N168W TO 25N163W TO 20N155W NEARLY STATIONARY.

.RIDGE FROM 30N179W TO 26N176E NEARLY STATIONARY.

.WINDS 20 TO 30 KT N OF LINE FROM 19N161W TO 12N174W TO 22N174E TO
29N169E...STRONGEST N OF 25N BETWEEN 172E AND 179E.
.24 HOUR FORECAST WINDS 20 TO 30 KT N OF 13N BETWEEN 154W AND 174E.
.48 HOUR FORECAST NE TO E WINDS 20 TO 30 KT N OF 13N BETWEEN 157W
AND 179W. E TO SE WINDS 20 TO 25 KT FROM 16N TO 25N BETWEEN 174E AND
179W.

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

.SEAS 12 TO 17 FT N OF LINE FROM 29N142W TO 22N155W TO 22N166W. SEAS
8 TO 12 FT ELSEWHERE N OF LINE FROM 27N140W TO 10N169W TO 10N177W TO
14N176E TO 29N168E.
.24 HOUR FORECAST SEAS 12 TO 14 FT FROM 18N TO 24N BETWEEN 160W AND
174W. SEAS 12 TO 13 FT N OF 21N BETWEEN 149W AND 158W. SEAS 8 TO 12
FT ELSEWHERE N OF LINE FROM 18N140W TO 12N152W TO 10N175W TO 10N175E
TO 29N170E TO 28N162E.
.48 HOUR FORECAST SEAS 12 TO 13 FT FROM 16N TO 22N BETWEEN 164W AND
179W. SEAS MAINLY 8 TO 12 FT ELSEWHERE N OF 09N E OF 169E.

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

.ITCZ FROM 07N150W TO 09N165W TO 10N179W. ISOLATED MODERATE TSTMS
FROM 07N TO 11N BETWEEN 155W AND 180W...FROM 11N TO 14N BETWEEN 153W
AND 159W...AND FROM 11N TO 14N BETWEEN 177E AND 178W.

$$

.FORECASTER KINEL. HONOLULU HI.



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