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From: <ldm@weather.cod.edu>
Subject: Central Pacific: High Seas Analysis
To: <wx-tropl@lists.illinois.edu>
Message-ID: <20220123033643.90BE81C0EEE@weather.cod.edu>
Date: Sun, 23 Jan 2022 03:36:43 +0000
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151 
FZPN40 PHFO 230336
HSFNP 

HIGH SEAS FORECAST
NATIONAL WEATHER SERVICE HONOLULU HI
0500 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SUPERSEDED BY NEXT ISSUANCE IN 6 HOURS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 0000 UTC JAN 23 2022.
24 HOUR FORECAST VALID 0000 UTC JAN 24 2022.
48 HOUR FORECAST VALID 0000 UTC JAN 25 2022.

.WARNINGS. 

...GALE WARNING...
.FRONT FROM 30N176W TO 23N175E TO 19N167E TO 15N160E MOVING E 30 KT 
ALONG 30N. SW WINDS 30 TO 40 KT WITHIN 250 NM E OF FRONT N OF 28N.
WINDS 20 TO 30 KT ELSEWHERE N OF A LINE FROM 30N161W TO 22N176E TO 
24N160W. ISOLATED MODERATE TSTMS WITHIN 120 NM E OF FRONT N OF 28N.
.24 HOUR FORECAST FRONT FROM 30N165W TO 25N175W TO 18N171E TO 
17N160E. W TO NW WINDS 20 TO 30 KT N OF A LINE FROM 30N173W TO 
25N178E TO 25N172E TO 30N164E. NE TO E WINDS 20 TO 15 KT WITHIN
120 NM OF FRONT W OF 165E
.48 HOUR FORECAST FRONT FROM 30N163W TO 21N175W TO 15N160E. W TO
NW WINDS 20 TO 25 KT N OF 29N BETWEEN 168W AND 175W. ADDITIONAL
WINDS DESCRIBED BELOW.

...GALE WARNING...
.LOW 22N144W 1009 MB MOVING SW SLOWLY. WINDS 20 TO 25 KT FROM 
20N TO 25N E OF 150W. ISOLATED MODERATE TSTMS WITHIN 150 NM N 
SEMICIRCLE.
.24 HOUR FORECAST LOW 19N145W 1007 MB. WINDS 30 TO 35 KT WITHIN
150 NM NW QUADRANT. WINDS 20 TO 30 KT ELSEWHERE FROM 14N TO 25N 
BETWEEN 143W AND 153W. 
.48 HOUR FORECAST LOW 14N147W 1009 MB. WINDS 20 TO 25 KT FROM 15N
TO 22N BETWEEN 146W AND 155W.

...GALE WARNING...
.48 HOUR FORECAST NEW FRONT W OF AREA. SW WINDS 30 TO 35 KT NW OF 
A LINE FROM 30N164E TO 28N160E. S TO SW WINDS 20 TO 30 KT ELSEWHERE 
NW OF A LINE FROM 30N169E TO 23N162E.

.SYNOPSIS AND FORECAST.

.FRONT FROM 30N143W 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 10N166E TO 04N166E MOVING W 15 KT. SCATTERED MODERATE
TSTMS FROM 05N TO 10N BETWEEN TROUGH AND 161E. 
.24 HOUR FORECAST TROUGH DISSIPATED.

.RIDGE FROM 30N158W TO 25N163W TO 18N180E TO 16N170E MOVING ESE 
10 KT.

.24 HOUR FORECAST NE TO E WINDS 20 TO 25 KT FROM 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 03N TO 15N W OF 170W.

.WINDS 20 KT OR LESS REST OF FORECAST AREA. 

.SEAS 12 TO 19 FT W OF A LINE FROM 30N171W TO 23N174E TO 20N166E. 
SEAS 12 TO 17 FT N OF A LINE FROM 30N142W TO 20N147W TO 23N162W. 
SEAS MAINLY 8 TO 12 FT ELSEWHERE N OF A LINE FROM 22N140W TO 
12N152W TO 06N157W TO 01N175W TO 14N165E TO 16N160E. 
.24 HOUR FORECAST SEAS 12 TO 17 FT N OF A LINE FROM 30N164W TO 
26N171W TO 24N161E. SEAS 12 TO 16 FT FROM 17N TO 24N BETWEEN 143W 
AND 150W. SEAS MAINLY 8 TO 12 FT ELSEWHERE N OF A LINE FROM 15N140W
TO 05N151W TO 01N171W TO 05N172E TO 07N160E. 
.48 HOUR FORECAST SEAS 12 TO 14 FT N OF 28N BETWEEN 172W AND 177E.
SEAS MAINLY 8 TO 12 FT ELSEWHERE N OF LINE FROM 20N140W TO 07N152W 
TO 03N180E TO 04N160E.

.SEAS 8 FT OR LESS REST OF FORECAST AREA.

.ITCZ FROM 07N140W TO 08N151W TO 04N169W TO 04N180E. ISOLATED 
MODERATE TSTMS WITHIN 120 NM OF ITCZ W OF 164W.

$$

.FORECASTER AHUE. HONOLULU HI.


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