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From: <ldm@weather.cod.edu>
Subject: Central Pacific: High Seas Analysis
To: <wx-tropl@lists.illinois.edu>
Message-ID: <20220122224626.448C61C0EEE@weather.cod.edu>
Date: Sat, 22 Jan 2022 22:46:26 +0000
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871 
FZPN40 PHFO 222246
HSFNP 

HIGH SEAS FORECAST
NATIONAL WEATHER SERVICE HONOLULU HI
2300 UTC SAT JAN 22 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SUPERSEDED BY NEXT ISSUANCE IN 6 HOURS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 JAN 22 2022.
24 HOUR FORECAST VALID 1800 UTC JAN 23 2022.
48 HOUR FORECAST VALID 1800 UTC JAN 24 2022.

.WARNINGS. 

...GALE WARNING...
.FRONT FROM 30N179W TO 23N173E TO 19N165E TO 16N160E MOVING E 
20 KT. SW WINDS 30 TO 40 KT N OF 27N BETWEEN FRONT AND 175W. W TO 
NW WINDS 30 TO 35 KT N OF 29N BETWEEN 177E AND 170E. WINDS 20 TO 
30 KT ELSEWHERE N OF A LINE FROM 30N165W TO 23N176W TO 22N160W.
.24 HOUR FORECAST FRONT FROM 30N168W TO 25N176W TO 18N171E TO 
14N160E. S TO SW WINDS 20 TO 30 KT WITHIN 360 NM E OF FRONT N OF 
26N. W TO NW WINDS 20 TO 30 KT N OF A LINE FROM 30N176W TO 25N178E
TO 25N164E TO 29N160E. ADDITIONAL WINDS DESCRIBED BELOW.
.48 HOUR FORECAST FRONT FROM 30N162W TO 21N175W TO 15N160E. W TO
NW WINDS 20 TO 25 KT N OF 29N BETWEEN 172W AND 178E. ADDITIONAL
WINDS DESCRIBED BELOW.

...GALE WARNING...
.LOW 22N144W 1010 MB MOVING SW SLOWLY. WINDS 20 TO 25 KT FROM 21N
TO 25N E OF 147W. 
.24 HOUR FORECAST LOW 19N145W 1008 MB. WINDS 30 TO 35 KT WITHIN
150 NM N SEMICIRCLE. WINDS 20 TO 30 KT ELSEWHERE FROM 15N TO 24N 
BETWEEN 143W AND 151W. 
.48 HOUR FORECAST LOW 16N148W 1010 MB. WINDS 20 TO 25 KT FROM 15N
TO 22N BETWEEN 146W AND 155W.

.SYNOPSIS AND FORECAST.

.FRONT FROM 30N145W TO 25N151W TO 22N160W NEARLY STATIONARY.
.24 HOUR FORECAST DISSIPATING FRONT FROM 30N141W TO 26N143W. 
.48 HOUR FORECAST FRONT WEAKENED TO TROUGH FROM 30N141W TO 27N143W.

.TROUGH FROM 10N168E TO 04N167E MOVING W 15 KT. ISOLATED MODERATE
TSTMS FROM 06N TO 10N BETWEEN TROUGH AND 163E. 
.24 HOUR FORECAST TROUGH DISSIPATED.

.48 HOUR FORECAST NEW FRONT FAR WEST OF AREA. S TO SW WINDS 20 TO
30 KT N OF 25N W OF 164E.

.RIDGE FROM 30N159W TO 25N163W TO 18N180E TO 16N167E MOVING ESE 
10 KT.

.NE TO E WINDS 20 TO 25 KT FROM 05N TO 14N BETWEEN 160W AND 
170W...AND FROM 05N TO 10N BETWEEN 170W AND 175E.
.24 HOUR FORECAST NE TO E WINDS 20 TO 25 KT FROM 10N TO 15N BETWEEN
151W AND 172W...AND FROM 06N TO 14N W OF 175E. 
.48 HOUR FORECAST NE TO E WINDS 20 TO 25 KT FROM 10N TO 17N BETWEEN
155W AND 164W...AND FROM 05N TO 15N W OF 164W.

.WINDS 20 KT OR LESS REST OF FORECAST AREA. 

.SEAS 12 TO 19 FT N OF A LINE FROM 30N171W TO 23N174E TO 20N160E. 
SEAS 12 TO 17 FT N OF LINE FROM 30N145W TO 21N151W TO 21N164W. SEAS 
MAINLY 8 TO 12 FT ELSEWHERE N OF A LINE FROM 19N140W TO 18N155W TO 
07N158W TO 01N179W TO 12N169E TO 16N160E. 
.24 HOUR FORECAST SEAS 12 TO 17 FT N OF A LINE FROM 30N164W TO 
24N178E TO 24N160E. SEAS 12 TO 16 FT N OF 18N BETWEEN 143W AND 
153W. SEAS MAINLY 8 TO 12 FT ELSEWHERE N OF A LINE FROM 17N140W TO 
03N157W TO 01N179E TO 07N170E TO 07N160E. 
.48 HOUR FORECAST SEAS 12 TO 14 FT N OF 27N BETWEEN 172W AND 173E.
SEAS 12 TO 13 FT FROM 14N TO 17N BETWEEN 148W AND 152W. SEAS MAINLY 
8 TO 12 FT ELSEWHERE N OF LINE FROM 11N140W TO 07N152W TO 05N180E 
TO 06N160E.

.SEAS 8 FT OR LESS REST OF FORECAST AREA.

.ITCZ FROM 07N140W TO 08N147W TO 08N154W TO 04N169W TO 04N180E. 
ISOLATED MODERATE TSTMS WITHIN 60 NM OF ITCZ W OF 169W.

$$

.FORECASTER AHUE. HONOLULU HI.


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