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From: <ldm@weather.cod.edu>
Subject: Central Pacific: High Seas Analysis
To: <wx-tropl@lists.illinois.edu>
Message-ID: <20220123104303.8C3E01C0EEE@weather.cod.edu>
Date: Sun, 23 Jan 2022 10:43:03 +0000
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403 
FZPN40 PHFO 231042
HSFNP 

HIGH SEAS FORECAST
NATIONAL WEATHER SERVICE HONOLULU HI
1100 UTC SUN JAN 23 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SUPERSEDED BY NEXT ISSUANCE IN 6 HOURS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 23 2022.
24 HOUR FORECAST VALID 0600 UTC JAN 24 2022.
48 HOUR FORECAST VALID 0600 UTC JAN 25 2022.

.WARNINGS. 

...GALE WARNING...
.LOW 21N144W 1010 MB MOVING SW 10 KT. WINDS 35 TO 45 KT FROM 21N
TO 24N BETWEEN 145W AND 143W. ELSEWHERE WINDS 25 TO 35 KT FROM 
20N TO 25N BETWEEN E OF 150W. SCATTERED MODERATE TSTMS WITHIN
240 NM E SEMICIRCLE.
.24 HOUR FORECAST LOW 18N147W 1009 MB. WINDS 25 TO 35 KT FROM 17N
TO 21N BETWEEN 150W AND 146W. ELSEWHERE WINDS 20 TO 25 KT IN AREA
BOUNDED BY 23N150W 23N143W 19N143W 16N147W 15N152W 18N156W 
23N150W. 
.48 HOUR FORECAST LOW 13N149W 1011 MB. WINDS 20 TO 25 KT FROM 14N
TO 19N BETWEEN 158W AND 150W.

...GALE WARNING...
.42 HOUR FORECAST NEW FRONT W OF AREA. S TO SW WINDS 25 TO 35 KT N
OF A LINE FROM 27N160E TO 30N165E.
.48 HOUR FORECAST FRONT FROM 30N162E TO 28N160E. S TO SW WINDS 25
TO 35 KT N OF A LINE FROM 26N160E TO 30N170E.

.SYNOPSIS AND FORECAST.

.FRONT FROM 30N173W TO 22N175E TO 16N160E MOVING E 20 
KT ALONG 30N. SW WINDS 20 TO 30 KT IN AREA BOUNDED BY 30N173W 
30N165W 23N180W 25N180W 30N173W.
.24 HOUR FORECAST FRONT FROM 30N166W TO 22N180W TO 16N160E. WINDS
EASED TO 20 KT OR LESS.
.48 HOUR FORECAST FRONT FROM 30N161W TO 22N173W. 

.RIDGE FROM 30N155W TO 20N170W TO 18N174E MOVING ESE 10 KT.

.W TO NW WINDS 20 TO 30 KT N OF A LINE FROM 26N160E TO 26N173E TO
30N180W.
.24 HOUR FORECAST W TO NW WINDS 20 TO 25 KT N OF A LINE FROM 
30N172E TO 26N180W TO 30N175W.
.48 HOUR FORECAST WINDS DIMINISHED TO 20 KT OR LESS.

.24 HOUR FORECAST NE TO E WINDS 20 TO 25 KT FROM FROM 05N TO 12N 
W OF 172E. 
.48 HOUR FORECAST NE TO E WINDS 20 TO 25 KT FROM 04N TO 14N
BETWEEN 175E AND 162W.

.WINDS 20 KT OR LESS REST OF FORECAST AREA. 

.SEAS 12 TO 18 FT N OF A LINE FROM 25N160E TO 20N166E TO 24N180E
TO 30N168W. SEAS 12 TO 16 FT IN AREA BOUNDED BY 30N140W 22N142W 
17N150W 23N158W 30N157W 30N140W. ELSEWHERE SEAS 8 TO 12 FT N OF A 
LINE FROM 05N160E TO 10N170E TO 00N178E TO 00N161W TO 20N140W. 
.24 HOUR FORECAST SEAS 12 TO 16 FT N OF A LINE 30N162E TO 23N167E
TO 30N158W. SEAS 12 TO 15 FT FROM 16N TO 24N BETWEEN 152W AND 
144W. ELSEWHERE SEAS 8 TO 12 FT N OF A LINE FROM 05N160E TO
07N170E TO 02N180E TO 01N150W TO 08N140W.
.48 HOUR FORECAST SEAS 12 TO 13 FT N OF A LINE FROM 28N160E TO 
30N165E AND N OF 28N BETWEEN 179E AND 167W. ELSEWHERE SEAS 8 TO 
12 FT N OF A FROM 03N160E TO 03N166E TO 10N166E TO 10N170E TO 
02N175E TO 10N150W TO 21N140W. 

.ISOLATED MODERATE TSTMS FROM 05N TO 11N W OF 167E.

.SEAS 8 FT OR LESS REST OF FORECAST AREA.

.ITCZ FROM 08S140W TO 06S150W TO 07S155W TO 04S165W TO 04S180W. 
ISOLATED MODERATE TSTMS WITHIN 120 NM OF ITCZ W OF 167W.

$$

.FORECASTER JELSEMA. HONOLULU HI.


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