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From: <ldm@weather.cod.edu>
Subject: Central Pacific: High Seas Analysis
To: <wx-tropl@lists.illinois.edu>
Message-ID: <20220106153142.8C6EA1C0EEE@weather.cod.edu>
Date: Thu, 6 Jan 2022 15:31:42 +0000
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143 
FZPN40 PHFO 061531
HSFNP 

HIGH SEAS FORECAST
NATIONAL WEATHER SERVICE HONOLULU HI
1700 UTC THU JAN 06 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SUPERSEDED BY NEXT ISSUANCE IN 6 HOURS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 06 2022.
24 HOUR FORECAST VALID 1200 UTC JAN 07 2022.
48 HOUR FORECAST VALID 1200 UTC JAN 08 2022.

.WARNINGS.

...GALE WARNING...
.FRONT FROM 30N175W TO 22N172E TO 16N160E MOVING E 20 KT. NW TO W
WINDS 25 TO 35 KT WITHIN 900 NM W OF FRONT N OF 28N. SW WINDS 25 TO 
35 KT WITHIN 330 NM E OF FRONT N OF 28N. WINDS 20 TO 30 KT 
ELSEWHERE N OF A LINE FROM 28N166W TO 26N180E TO 24N170E TO 
28N160E.  
.24 HOUR FORECAST FRONT FROM 30N168W TO 24N174W TO 18N172E TO 
12N160E. NW TO W WINDS 25 TO 35 KT WITHIN 660 NM W OF FRONT N OF 
28N. SW WINDS 25 TO 35 KT WITHIN 270 NM E OF FRONT N OF 28N. WINDS 
20 TO 30 KT ELSEWHERE N OF A LINE FROM 29N161W TO 25N169W TO 
23N174W TO 26N177E. 
.48 HOUR FORECAST FRONT FROM 30N151W TO 23N160W TO 18N177W. NW 
WINDS 25 TO 35 KT WITHIN 660 NM W OF FRONT N OF 28N. WINDS 20 TO 30
KT ELSEWHERE N OF A LINE FROM 27N146W TO 25N151W TO 24N156W TO 
26N164W. 

...GALE WARNING...
.24 HOUR FORECAST NEW FRONT W OF AREA. SW WINDS 20 TO 30 KT NW OF A
LINE FROM 30N165E TO 27N160E.
.36 HOUR FORECAST FRONT FROM 30N167E TO 27N160E. SW WINDS 25 TO 35
KT WITHIN 180 NM E OF FRONT N OF 28N. WINDS 20 TO 30 KT ELSEWHERE
N OF A LINE FROM 28N174E TO 28N170E TO 26N160E.
.48 HOUR FORECAST FRONT FROM 30N174E TO 24N160E. SW WINDS 20 TO 30
KT WITHIN 480 NM E OF FRONT N OF 28N. NW WINDS 20 TO 30 KT W OF 
FRONT N OF 29N.

.SYNOPSIS AND FORECAST.

.COLD FRONT FROM 30N146W TO 26N152W MOVING E 15 KT. SE TO S WINDS 
20 TO 25 KT FROM 24N TO 28N BETWEEN 144W AND 147W.
.24 HOUR FORECAST WEAKENING FRONT FROM 30N140W TO 28N146W. WINDS 
DIMINISHED TO 20 KT OR LESS.
.48 HOUR FORECAST FRONT MOVED NE OF AREA. 

.TROUGH FROM 24N158W TO 21N169W MOVING N SLOWLY.
.24 HOUR FORECAST TROUGH DISSIPATED. 

.TROUGH FROM 25N149W TO 16N151W MOVING NW SLOWLY. 
.24 HOUR FORECAST TROUGH FROM 24N152W TO 17N153W.
.48 HOUR FORECAST TROUGH FROM 25N147W TO 21N151W.

.48 HOUR FORECAST NE WINDS 20 TO 25 KT FROM 02N TO 14N BETWEEN 167W 
AND 169E.

.HIGH 20N175W 1015 MB MOVING E 20 KT. RIDGE FROM 30N156W TO 26N166W
TO HIGH TO 17N170E MOVING E 20 KT.
.24 HOUR FORECAST HIGH 19N167W 1015 MB.
.48 HOUR FORECAST HIGH DISSIPATED.

.RIDGE FROM 26N140W TO 23N146W MOVING SE SLOWLY.

.48 HOUR FORECAST NEW HIGH 24N173E 1019 MB.

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

.SEAS 12 TO 23 FT N OF A LINE FROM 30N167W TO 26N180E TO 22N160E. 
SEAS 12 TO 13 FT N OF 22N BETWEEN 154W AND 164W. SEAS 8 TO 12 FT
ELSEWHERE N OF A LINE FROM 19N147W TO 19N158W TO 03N164W TO 
03N180E...AND ELSEWHERE N OF A LINE FROM 23N180E TO 16N160E. SEAS 
8 TO 9 FT FROM 08N TO 23N E OF 147W.
.24 HOUR FORECAST SEAS 12 TO 26 FT N OF A LINE FROM 30N163W TO 
19N180E TO 19N170E TO 23N160E. SEAS 8 TO 12 FT ELSEWHERE N OF A 
LINE FROM 25N163W TO 17N180E TO 10N160E. SEAS 8 TO 10 FT N OF 10N 
BETWEEN 142W AND 163W...AND FROM 03N TO 14N BETWEEN 163W AND 176E.
.48 HOUR FORECAST SEAS 12 TO 21 FT N OF A LINE FROM 30N152W TO 
25N160W TO 16N178W TO 18N170E TO 27N168E TO 27N160E. SEAS 8 TO 12 
FT ELSEWHERE N OF A LINE FROM 30N146W TO 23N156W TO 10N171W TO 
10N160E. SEAS 8 TO 10 FT FROM 03N TO 10N BETWEEN 164W AND 171E.
SEAS 8 TO 9 FT N OF 24N E OF 143W.

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

.ISOLATED MODERATE TSTMS WITHIN 120 NM OF A POINT 10N168E.

.ITCZ FROM 08N140W TO 06N146W TO 04N180E. ISOLATED MODERATE TSTMS
WITHIN 150 NM OF ITCZ W OF 174W...AND ELSEWHERE WITHIN 120 NM OF 
ITCZ

$$

.FORECASTER HOUSTON. HONOLULU HI.


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