High Seas Forecast
Issued by NWS

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FZPN40 PHFO 221531
HSFNP

HIGH SEAS FORECAST
NATIONAL WEATHER SERVICE HONOLULU HI
1700 UTC THU FEB 22 2018

SUPERSEDED BY NEXT ISSUANCE IN 6 HOURS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 1200 UTC FEB 22 2018.
24 HOUR FORECAST VALID 1200 UTC FEB 23 2018.
48 HOUR FORECAST VALID 1200 UTC FEB 24 2018.

.WARNINGS.

.NONE.

.SYNOPSIS AND FORECAST.

.TROUGH FROM 30N166W TO 15N167W TO 09N171W MOVING W SLOWLY N OF 24N
AND NEARLY STATIONARY ELSEWHERE. ISOLATED MODERATE TSTMS FROM 25N TO
29N BETWEEN 169W AND 174W...WITHIN 60 NM OF 24N169W...FROM 11N TO
22N BETWEEN TROUGH AND 150W...AND FROM 07N TO 11N BETWEEN 163W AND
179W.
.24 HOUR FORECAST TROUGH FROM 30N169W TO 24N166W TO 15N167W TO
09N171W.
.48 HOUR FORECAST TROUGH FROM 30N165W TO 19N167W TO 10N172W.

.TROUGH FROM 30N177E TO 25N179E MOVING SW 10 KT.
.24 HOUR FORECAST TROUGH DISSIPATED.

.48 HOUR FORECAST NEW WEAK FRONT FROM 30N165E TO 28N164E TO 28N160E.

.RIDGE FROM 30N171E TO 27N160E MOVING NNW SLOWLY.

.E TO SE WINDS 20 TO 30 KT E OF LINE FROM 11N142W TO 24N154W...AND N
OF 24N BETWEEN 145W AND 154W. NE TO E WINDS 20 TO 25 KT FROM 08N TO
19N BETWEEN 163E AND 177W.
.24 HOUR FORECAST E TO SE WINDS 20 TO 25 KT E OF LINE FROM 09N146W
TO 18N160W TO 24N160W...AND N OF 24N BETWEEN 144W AND 160W. NE TO E
WINDS 20 TO 25 KT W OF LINE FROM 06N174E TO 11N178W TO 19N178W.
.48 HOUR FORECAST E TO SE WINDS 20 TO 30 KT E OF LINE FROM 08N151W
TO 17N161W TO 24N162W...AND N OF 24N BETWEEN 148W AND 163W. NE TO E
WINDS 20 TO 25 KT FROM 05N TO 17N W OF 175E.

.SEAS 8 TO 12 FT N OF LINE FROM 10N140W TO 15N150W TO 22N157W TO
22N161W TO 17N163W TO 10N174W. SEAS 8 TO 10 FT IN AREA BOUNDED BY
30N174W 10N174W 07N176E 15N166E 21N179E 26N175W 30N174W. SEAS 8 TO 9
FT FROM 11N TO 18N BETWEEN 154W AND 161W.
.24 HOUR FORECAST SEAS 8 TO 11 FT E OF LINE FROM 07N144W TO 13N162W
TO 30N161W...EXCEPT SEAS 8 FT OR LESS E OF LINE FROM 25N140W TO
30N146W. SEAS 8 TO 9 FT FROM 08N TO 17N W OF 180E.
.48 HOUR FORECAST SEAS 8 TO 12 FT E OF LINE FROM 06N157W TO
25N163W...AND BETWEEN 163W AND A LINE FROM 25N144W TO 30N151W.
SEAS 8 TO 9 FT FROM 06N TO 16N W OF 165E...AND FROM 09N TO 17N
BETWEEN 170E AND 176E.

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

.ITCZ FROM 06N140W TO 09N157W. ISOLATED MODERATE TSTMS FROM 07N TO
11N E OF 158W.

.ISOLATED MODERATE TSTMS W OF 174W S OF 09N.

$$

.HONOLULU HI.



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