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From: <ldm@weather.cod.edu>
Subject: Central Pacific: High Seas Analysis
To: <wx-tropl@lists.illinois.edu>
Message-ID: <20220118101309.D6F781C0EEE@weather.cod.edu>
Date: Tue, 18 Jan 2022 10:13:09 +0000
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850 
FZPN40 PHFO 181012
HSFNP 

HIGH SEAS FORECAST
NATIONAL WEATHER SERVICE HONOLULU HI
1100 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SUPERSEDED BY NEXT ISSUANCE IN 6 HOURS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 0600 UTC JAN 18 2022.
24 HOUR FORECAST VALID 0600 UTC JAN 19 2022.
48 HOUR FORECAST VALID 0600 UTC JAN 20 2022.

.WARNINGS. 

...GALE WARNING...
.FRONT FROM 30N169E TO 27N160E MOVING E 10 KT. SW WINDS 25 TO 35 KT
WITHIN 240 NM E OF FRONT. SW TO W WINDS 20 TO 30 KT ELSEWHERE N OF 
A LINE FROM 28N178E TO 26N170E TO 25N160E.
.24 HOUR FORECAST FRONT FROM 30N175E TO 26N169E TO 23N160E. SW 
WINDS 25 TO 35 KT WITHIN 450 NM E OF FRONT N OF 27N. W TO NW WINDS
30 TO 35 KT W OF FRONT. SW TO W WINDS 20 TO 30 KT ELSEWHERE N OF A 
LINE FROM 27N172W TO 24N180E TO 21N175E TO 21N160E.
.48 HOUR FORECAST FRONT FROM 30N169W TO 24N180E TO 20N169E TO 
18N160E. SW WINDS 25 TO 35 KT WITHIN 420 NM E OF FRONT N OF 26N. W
TO NW WINDS 30 TO 35 KT WITHIN 930 NM W OF FRONT N OF 26N. SW TO NW 
WINDS 20 TO 30 KT ELSEWHERE N OF A LINE FROM 27N159W TO 23N170W TO 
24N180E TO 23N170E TO 27N162E. 

.SYNOPSIS AND FORECAST.

.FRONT FROM 30N163W TO 23N173W TO 19N175E TO 16N160E MOVING E 20 KT
E OF 175E...AND NEARLY STATIONARY ELSEWHERE. SW WINDS 20 TO 30 KT 
WITHIN 210 NM E OF FRONT N OF 25N. W TO NW WINDS 20 TO 30 KT WITHIN 
720 NM W OF FRONT N OF 27N. ISOLATED MODERATE TSTMS WITHIN 120 NM
OF FRONT N OF 25N.
.24 HOUR FORECAST WEAKENING FRONT FROM 30N153W TO 27N157W TO 
24N172W. WINDS DIMINISHED TO 20 KT OR LESS.   
.48 HOUR FORECAST FRONT DISSIPATED N OF AREA. 

.TROUGH FROM 19N164W TO 15N167W MOVING WNW SLOWLY.
.24 HOUR FORECAST TROUGH FROM 20N167W TO 16N171W.  
.48 HOUR FORECAST TROUGH DISSIPATED.

.TROUGH FROM 08N158W TO 02N161W MOVING W 15 KT.
.24 HOUR FORECAST TROUGH FROM 08N165W TO 02N168W.  
.48 HOUR FORECAST TROUGH FROM 08N173W TO 03N174W.

.HIGH 22N168E 10133 MB MOVING SE SLOWLY. RIDGE FROM 22N160W TO
HIGH TO 22N179E MOVING SSE SLOWLY.
.24 HOUR FORECAST HIGH DISSIPATED.

.RIDGE FROM 30N140W TO 23N154W TO 19N174W NEARLY STATIONARY. 

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

.SEAS 12 TO 16 FT N OF A LINE FROM 30N160W TO 26N165W TO 22N180E TO 
22N173E TO 28N169E TO 28N160E. SEAS 8 TO 12 FT ELSEWHERE N OF A 
LINE FROM 30N156W TO 17N170W TO 17N164E TO 25N160E. SEAS 8 TO 9 FT 
FROM 04N TO 17N BETWEEN 173W AND 173E.
.24 HOUR FORECAST SEAS 18 TO 24 FT N OF A LINE FROM 30N178E TO
28N171E TO 26N160E. SEAS 12 TO 18 FT ELSEWHERE N OF A LINE FROM 
28N162W TO 27N170W TO 26N180E TO 24N160E. SEAS 8 TO 12 FT ELSEWHERE
N OF A LINE FROM 30N150W TO 23N157W TO 12N175E TO 21N170E TO 
21N160E. SEAS 8 TO 9 FT FROM 04N TO 12N BETWEEN 160W AND 176E.
.48 HOUR FORECAST SEAS 18 TO 26 FT N OF A LINE FROM 30N172W TO 
24N174E TO 24N169E TO 28N163E. SEAS 12 TO 18 FT ELSEWHERE N OF A 
LINE FROM 30N162W TO 23N175W TO 19N165E TO 18N160E. SEAS 8 TO 12 FT 
ELSEWHERE N OF A LINE FROM 23N147W TO 21N167W TO 19N180E TO 
16N160E. SEAS 8 TO 9 FT FROM 03N TO 18N BETWEEN 160W AND 174W.

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

.ISOLATED MODERATE TSTMS FROM 03N TO 08N W OF 166E. 

$$

.FORECASTER HOUSTON. HONOLULU HI.


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