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From: <ldm@weather.cod.edu>
Subject: Central Pacific: High Seas Analysis
To: <wx-tropl@lists.illinois.edu>
Message-ID: <20220209222730.2FEE91C0EEE@weather.cod.edu>
Date: Wed, 9 Feb 2022 22:27:30 +0000
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384 
FZPN40 PHFO 092227
HSFNP 

HIGH SEAS FORECAST
NATIONAL WEATHER SERVICE HONOLULU HI
2300 UTC WED FEB 09 2022

SUPERSEDED BY NEXT ISSUANCE IN 6 HOURS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 1800 UTC FEB 09 2022.
24 HOUR FORECAST VALID 1800 UTC FEB 10 2022.
48 HOUR FORECAST VALID 1800 UTC FEB 11 2022.

.WARNINGS. 

...GALE WARNING...
.48 HOUR FORECAST NEW FRONT W OF AREA NEAR 30N160E. S TO SW WINDS
20 TO 35 KT N OF 22N W OF 173E.

.SYNOPSIS AND FORECAST.

.STATIONARY FRONT FROM 30N163W TO 24N173W TO 20N176E TO 18N160E. S
TO SW WINDS 20 TO 25 KT WITHIN 180 NM OF FRONT N OF 26N. ISOLATED
MODERATE TSTMS WITHIN 90 NM EITHER SIDE OF FRONT N OF 29N. 
.24 HOUR FORECAST FRONT FROM 30N161W TO 22N170W TO 18N180E TO 
17N174E. WINDS DIMINISHED TO 20 KT OR LESS.
.48 HOUR FORECAST FRONT FROM 30N153W TO 24N160W TO 23N167W. 

.FRONT FROM 30N170W TO 25N176W TO 22N177E MOVING E 20 KT.
.24 HOUR FORECAST FRONT MERGED WITH FRONT DESCRIBED IN SECTION 
IMMEDIATELY ABOVE.

.TROUGH FROM 22N142W TO 18N145W TO 15N145W NEARLY STATIONARY. 
ISOLATED MODERATE TSTMS E OF TROUGH N OF 16N.
.24 HOUR FORECAST TROUGH DISSIPATED.

.FRONT FROM 30N162E TO 28N160E. W TO NW WINDS 20 TO 30 KT N OF 
28N W OF 165E.
.24 HOUR FORECAST FRONT FROM 30N175E TO 27N172E TO 27N165E TO 
28N160E. W TO SW WINDS 20 TO 25 KT WITHIN 150 NM E OF FRONT N OF 
28N.
.48 HOUR FORECAST FRONT FROM 30N175W TO 28N179E. WINDS DIMINISHED
TO 20 KT OR LESS.

.24 HOUR FORECAST NEW TROUGH FROM 30N143W TO 23N142W.
.48 HOUR FORECAST LITTLE CHANGE.

.RIDGE FROM 30N149W TO 24N160W TO 19N173W MOVING ESE SLOWLY...
AND GRADUALLY ERODING FROM THE SW.

.RIDGE FROM 25N160E TO 24N175E MOVING ENE 20 KT.

.24 HOUR FORECAST NEW HIGH 28N176E 1017 MB.
.48 HOUR FORECAST HIGH DISSIPATED.

.OTHERWISE...WINDS 20 KT OR LESS OVER REMAINDER OF FORECAST AREA.

.SEAS 8 TO 12 FT N OF A LINE FROM 24N157W TO 24N166W TO 28N160E. 
SEAS 8 TO 9 FT FROM 17N TO 24N BETWEEN 170W AND 170E...AND N OF
25N E OF 152W. 
.24 HOUR FORECAST SEAS 8 TO 10 FT N OF A LINE FROM 30N157W TO 
26N163W TO 26N168E. 
.48 HOUR FORECAST SEAS 12 TO 17 FT N OF 28N W OF 164E. ELSEWHERE 
SEAS 8 TO 12 FT N OF 24N W OF 170E. SEAS 8 TO 9 FT N OF 26N 
BETWEEN 155W AND 170W. 

.OTHERWISE...SEAS 8 FT OR LOWER OVER REMAINDER OF FORECAST AREA. 

.ITCZ FROM 09N140W TO 08N150W TO 07N170W TO 04N171E. ISOLATED 
MODERATE TSTMS WITHIN 240 NM OF ITCZ E OF 140W...AND W OF 180W.


$$

.HONOLULU FORECAST OFFICE.


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