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From: <ldm@weather.cod.edu>
Subject: Central Pacific: High Seas Analysis
To: <wx-tropl@lists.illinois.edu>
Message-ID: <20220108153332.4CFD61C0EEE@weather.cod.edu>
Date: Sat, 8 Jan 2022 15:33:32 +0000
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817 
FZPN40 PHFO 081533
HSFNP 

HIGH SEAS FORECAST
NATIONAL WEATHER SERVICE HONOLULU HI
1700 UTC SAT JAN 08 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SUPERSEDED BY NEXT ISSUANCE IN 6 HOURS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 08 2022.
24 HOUR FORECAST VALID 1200 UTC JAN 09 2022.
48 HOUR FORECAST VALID 1200 UTC JAN 10 2022.

.WARNINGS.

...GALE WARNING...
.COLD FRONT FROM 30N150W TO 25N155W TO 22N161W TO 20N170W. FRONT 
MOVING E 40 KT N OF 25 KT AND SE 20 KT S OF 25N. WIND SW 20 TO 30 
KT N OF 25N WITHIN 240 NM E OF FRONT. WINDS W TO NW 30 TO 35 KT N 
OF 28N WITHIN 480 NM W OF FRONT. WINDS W TO NW 20 TO 30 KT 
ELSEWHERE NW OF FRONT E OF 161W. ASSOCIATED SEAS INCLUDED BELOW. 
SCATTERED MODERATE TSTMS N OF 27N WITHIN 300 NM E OF FRONT.
.12 HOUR FORECAST FRONT FROM 30N141W TO 25N148W TO 21N157W. WIND 
SW 20 TO 30 KT N OF 25N WITHIN 360 NM E OF FRONT. WINDS W TO NW 20
TO 30 KT NW OF FRONT E OF 152W. ASSOCIATED SEAS INCLUDED BELOW. 
.24 HOUR FORECAST FRONT FROM 26N140W TO 21N147W. ASSOCIATED WINDS
DIMINISHED TO 20 KT OR LESS. ASSOCIATED SEAS INCLUDED BELOW. 
.48 HOUR FORECAST FRONT DISSIPATED E OF FORECAST AREA. 

...GALE WARNING...
.COLD FRONT FROM 30N176E TO 27N167E TO 25N160E. FRONT MOVING E 35
KT N OF 27N AND SE 15 KT S OF 27N. WIND W TO SW 20 TO 30 KT N OF 
27N WITHIN 720 NM E OF FRONT. WIND NW 20 TO 25 KT N OF 27N WITHIN 
420 NM W OF FRONT. ASSOCIATED SEAS INCLUDED BELOW. 
.12 HOUR FORECAST FRONT FROM 30N174W TO 27N179E TO 24N169E TO 
22N160E. WINDS W TO SW 20 TO 30 KT N OF 27N WITHIN 810 NM E OF 
FRONT. WIND NW 20 TO 30 KT N OF 27N BETWEEN 165E AND FRONT. 
ASSOCIATED SEAS INCLUDED BELOW. 
.24 HOUR FORECAST FRONT FROM 30N165W TO 26N176W TO 23N171E. WIND 
SW 30 TO 35 KT N OF 29N WITHIN 420 NM E OF FRONT. WINDS W TO SW 20
TO 30 KT ELSEWHERE N OF 26N BETWEEN FRONT AND 150W. WINDS W TO NW
20 TO 30 KT N OF 26N BETWEEN FRONT AND 170E. 
.48 HOUR FORECAST FRONT FROM 30N155W TO 26N162W TO 19N175W. WIND 
SW 20 TO 30 KT N OF 26N BETWEEN FRONT AND 147W. WINDS W TO NW 30 
TO 40 KT N OF 26N WITHIN 1200 NM W OF FRONT. WINDS W TO N 20 TO 30
KT ELSEWHERE NW OF FRONT. ASSOCIATED SEAS INCLUDED BELOW. 

.SYNOPSIS AND FORECAST.

.TROUGH FROM 29N145W TO 26N140W MOVING NW 20 KT. WINDS SW TO SE 
20 TO 25 KT FROM 25N TO 23N BETWEEN 145W AND 140W. 
.12 HOUR FORECAST TROUGH W OF FORECAST AREA. ASSOCIATED WINDS 
INCLUDED WITH FIRST COLD FRONT DESCRIBED IN WARNING SECTION ABOVE.

.TROUGH FROM 16S154W TO 21S151W TO 24S149W NEARLY STATIONARY.
.12 HOUR FORECAST TROUGH DISSIPATED. 

.OTHERWISE WINDS NE TO E 20 TO 25 KT FROM 14N TO 04N BETWEEN 175E
AND 165W. 
.24 HOUR FORECAST WINDS NE TO E 20 TO 25 KT FROM 20N TO 04N 
BETWEEN 160E AND 170W. 
.48 HOUR FORECAST WINDS NE TO E 20 TO 30 KT FROM 22N TO 06N 
BETWEEN 160E AND 171E. 

.WINDS 20 KT OR LESS REMAINDER FORECAST AREA. 

.SEAS 12 TO 21 FT N OF A LINE FROM 30N149W TO 17N176W TO 17N170E.
SEAS 8 TO 12 FT ELSEWHERE WITHIN AN AREA BOUND BY 30N160E 30N140W
25N140W 23N160W 15N170W 05N168W 05N173E 11N160E. 
.12 HOUR FORECAST SEAS 12 TO 18 FT N AND NW OF A LINE FROM 
30N143W TO 20N162W TO 13N175E. SEAS 8 TO 12 FT ELSEWHERE WITHIN AN
AREA BOUND BY 30N160E 30N140W 21N160W 13N167W 04N173W 04N172E 
10N160E 30N160E.
.24 HOUR FORECAST SEAS 12 TO 18 FT N AND NW OF A LINE FROM 
30N140W TO 21N153W TO 21N161W TO 21N176E TO 28N170E. SEAS 8 TO 12 
FT ELSEWHERE WITHIN AN AREA BOUND BY 30N160E 30N140W 27N140W 
10N163W 02N170W 02N160E 30N160E. 
.48 HOUR FORECAST SEAS 12 TO 21 FT N AND NW OF A LINE FROM 
29N140W TO 24N150W TO 24N176E. SEAS 8 TO 12 FT ELSEWHERE WITHIN AN
AREA BOUND BY 30N160E 30N140W 18N140W 04N160W 02N170W 10N170E 
10N160E 30N160E. 

.SEAS 8 FT OR LOWER REMAINDER FORECAST AREA. 

.HIGH NEAR 25N172W 1018 MB. RIDGE FROM HIGH TO 30N165W. 

.RIDGE FROM 21N160E TO 22N179W. 

.ITCZ FROM 09N150W TO 05N160W TO 06N170W TO 03N179W TO 03N173E. 
ISOLATED MODERATE TSTMS WITHIN 90 NM EITHER SIDE OF LINE OF 
CONVERGENCE. 

$$

.FORECASTER BEDAL. HONOLULU HI.


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