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From: <ldm@weather.cod.edu>
Subject: Central Pacific: High Seas Analysis
To: <wx-tropl@lists.illinois.edu>
Message-ID: <20220118152952.D450A1C0EEE@weather.cod.edu>
Date: Tue, 18 Jan 2022 15:29:52 +0000
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835 
FZPN40 PHFO 181529
HSFNP 

HIGH SEAS FORECAST
NATIONAL WEATHER SERVICE HONOLULU HI
1700 UTC TUE JAN 18 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SUPERSEDED BY NEXT ISSUANCE IN 6 HOURS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 1200 UTC JAN 18 2022.
24 HOUR FORECAST VALID 1200 UTC JAN 19 2022.
48 HOUR FORECAST VALID 1200 UTC JAN 20 2022.

.WARNINGS. 

...GALE WARNING...
.FRONT JUST W OF AREA MOVING E 45 KT. SW TO W WINDS 25 TO 35 KT N
OF 27N W OF 178E. SW TO W WINDS 20 TO 30 KT ELSEWHERE N OF A LINE 
FROM 28N180E TO 25N170E TO 24N160E.
.24 HOUR FORECAST FRONT FROM 30N179W TO 25N170E TO 22N160E. SW 
WINDS 25 TO 35 KT WITHIN 540 NM E OF FRONT N OF 27N. W TO NW WINDS
25 TO 40 KT W OF FRONT. SW TO W WINDS 20 TO 30 KT ELSEWHERE N OF A 
LINE FROM 29N166W TO 23N180E TO 22N170E TO 22N160E.
.48 HOUR FORECAST FRONT FROM 30N167W TO 23N180E TO 19N169E TO 
17N160E. SW WINDS 25 TO 35 KT WITHIN 420 NM E OF FRONT N OF 27N. W
TO NW WINDS 30 TO 35 KT WITHIN 960 NM W OF FRONT N OF 27N. SW TO NW 
WINDS 20 TO 30 KT ELSEWHERE N OF A LINE FROM 27N155W TO 23N173W TO 
23N180E TO 27N168E. 

.SYNOPSIS AND FORECAST.

.FRONT FROM 30N161W TO 23N170W TO 19N179E TO 15N160E MOVING E 10 KT
E OF 175E...AND NEARLY STATIONARY ELSEWHERE. SW WINDS 20 TO 30 KT 
WITHIN 240 NM E OF FRONT N OF 26N. W TO NW WINDS 20 TO 30 KT WITHIN 
450 NM W OF FRONT N OF 26N. ISOLATED MODERATE TSTMS WITHIN 90 NM
OF FRONT N OF 25N.
.24 HOUR FORECAST FRONT WEAKENED TO TROUGH FROM 30N155W TO 25N162W. 
WINDS DIMINISHED TO 20 KT OR LESS.   
.48 HOUR FORECAST TROUGH DISSIPATED. 

.TROUGH FROM 19N166W TO 14N169W MOVING NNW SLOWLY.
.24 HOUR FORECAST TROUGH DISSIPATED.

.TROUGH FROM 08N161W TO 02N163W MOVING W 15 KT.
.24 HOUR FORECAST TROUGH FROM 08N167W TO 02N170W.  
.48 HOUR FORECAST TROUGH DISSIPATED.

.HIGH 21N172E 1013 MB MOVING ESE SLOWLY. RIDGE FROM 22N160W TO
HIGH TO 26N175W MOVING E SLOWLY.
.24 HOUR FORECAST HIGH DISSIPATED.

.RIDGE FROM 30N141W TO 24N155W TO 19N173W NEARLY STATIONARY. 

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

.SEAS 12 TO 16 FT N OF A LINE FROM 30N158W TO 25N164W TO 22N178W TO 
22N178E TO 27N174E TO 27N160E. SEAS 8 TO 12 FT ELSEWHERE N OF A 
LINE FROM 30N156W TO 15N170W TO 15N164E TO 25N160E. SEAS 8 TO 9 FT 
FROM 04N TO 15N BETWEEN 170W AND 171E.
.24 HOUR FORECAST SEAS 18 TO 26 FT N OF A LINE FROM 30N176W TO
27N177E TO 26N160E. SEAS 12 TO 18 FT ELSEWHERE N OF A LINE FROM  
30N168W TO 25N180E TO 22N160E. SEAS 8 TO 12 FT ELSEWHERE N OF A 
LINE FROM 30N148W TO 24N154W TO 20N165W TO 20N160E. SEAS 8 TO 9 FT 
FROM 06N TO 20N BETWEEN 160W AND 174E.
.48 HOUR FORECAST SEAS 18 TO 25 FT N OF A LINE FROM 30N171W TO 
24N178E TO 24N171E TO 30N165E. SEAS 12 TO 18 FT ELSEWHERE N OF A 
LINE FROM 30N160W TO 22N177W TO 18N170E TO 18N160E. SEAS 8 TO 12 FT 
ELSEWHERE N OF A LINE FROM 26N160W TO 17N180E TO 13N160E. SEAS 8 TO 
9 FT N OF 21N E OF 160W...AND FROM 04N TO 17N BETWEEN 154W AND 
178W.

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

.ISOLATED MODERATE TSTMS S OF 07N W OF 165E. 

$$

.FORECASTER HOUSTON. HONOLULU HI.


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