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From: <ldm@weather.cod.edu>
Subject: Central Pacific: High Seas Analysis
To: <wx-tropl@lists.illinois.edu>
Message-ID: <20220121215534.0C7BA1C0EEE@weather.cod.edu>
Date: Fri, 21 Jan 2022 21:55:34 +0000
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360 
FZPN40 PHFO 212155
HSFNP 

HIGH SEAS FORECAST
NATIONAL WEATHER SERVICE HONOLULU HI
2300 UTC FRI JAN 21 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SUPERSEDED BY NEXT ISSUANCE IN 6 HOURS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 21 2022.
24 HOUR FORECAST VALID 1800 UTC JAN 22 2022.
48 HOUR FORECAST VALID 1800 UTC JAN 23 2022.

.WARNINGS. 

...GALE WARNING...
.FRONT 30N174E 23N160E MOVING ESE 15 KT. SW WINDS 30 TO 25 KT
WITHIN 150 NM E OF FRONT N OF 26N. WINDS 20 TO 30 KT ELSEWHERE N
OF LINE 30N178W 25N175W 22N165E. SEE ASSOCIATED SEAS IN SECTION
BELOW. ISOLATED MODERATE TSTMS WITHIN 90 NM E OF FRONT N OF 27N. 
.24 HOUR FORECAST FRONT 30N175W 23N170E 20N160E. SW WINDS 30 TO 
35 KT WITHIN 120 NM E OF FRONT N OF 26N. WINDS 20 TO 30 KT 
ELSEWHERE N OF LINE 30N167W 25N175W 23N178E. SEE ASSOCIATED SEAS 
IN SECTION BELOW.
.48 HOUR FORECAST FRONT 30N169W 23N180W 18N165E. WINDS 20 TO 25 
KT WITHIN 90 NM E OF FRONT N OF 28N.

...GALE WARNING...
.FRONT JUST W OF AREA MOVING ESE 15 KT. W WINDS 30 TO 35 KT N 27N
W OF 163E. WINDS 20 TO 30 KT ELSEWHERE N OF 22N W OF 165E. 
.24 HOUR FORECAST FRONT 30N170E 26N160E. W WINDS 30 TO 25 KT N OF
27N BETWEEN 168E AND 178E. WINDS 20 TO 30 KT ELSEWHERE N OF 22N W
OF 178E. 
.48 HOUR FORECAST FRONT 30N178W 26N170E 23N160E. WINDS 20 TO 30 
KT N OF LINE 30N177W 26N175E 25N168E 30N162E. 

.SYNOPSIS AND FORECAST.

.LOW 23N140W 1010 MB WSW SLOWLY. WINDS 20 TO 30 KT N OF 22N E OF
144W. SEE ASSOCIATED SEAS IN SECTION BELOW.
.24 HOUR FORECAST 22N143W 1012 MB. WINDS 20 TO 30 KT FROM 22N TO 
26N E OF 148W. SEE ASSOCIATED SEAS IN SECTION BELOW.
.48 HOUR FORECAST LOW 20N144W 1010 MB WINDS 20 TO 30 KT FROM 18N 
TO 25N BETWEEN 142W AND 152W. SEE ASSOCIATED SEAS IN SECTION 
BELOW.

.FRONT 30N155W 25N160W 20N174W MOVING E 15 KT. WINDS 20 TO 25 KT N
OF 28N BETWEEN 150W AND 167W. SEE ASSOCIATED SEAS IN SECTION BELOW.
ISOLATED MODERATE TSTMS WITHIN 90 NM E OF FRONT N OF 28N. 
.24 HOUR FORECAST FRONT 30N148W 23N160W DISSIPATING. WINDS 
DIMINISHED TO 20 KT OR LESS. SEE ASSOCIATED SEAS IN SECTION BELOW.
.48 HOUR FORECAST FRONT DISSIPATED. 

.TROUGH 04N176E 10N176E MOVING W 10 KT. ISOLATED MODERATE TSTMS
FROM 05N TO 10N BETWEEN 170E AND 177W.
.24 HOUR FORECAST TROUGH 04N170E 10N170E.
.48 HOUR FORECAST TROUGH 03N162E 10N162E.

.HIGH 26N168W 1018 MB MOVING NE 20 KT. RIDGE 26N162W TO HIGH TO 
23N180W 20N165E MOVING ENE 20 KT. 
.24 HOUR FORECAST HIGH MOVED N OF AREA. 

.RIDGE 30N145W 26N150W 21N160W MOVING E 10 KT AND ERODING FROM THE
S.

.WINDS NE TO E 20 TO 25 KT FROM 06N TO 14N BETWEEN 158W AND 172E.
.24 HOUR FORECAST WINDS NE TO E 20 TO 25 KT FROM 05N TO 15N 
BETWEEN 156W AND 175E.
.48 HOUR FORECAST WINDS NE TO E 20 TO 25 KT FROM 07N TO 16N 
BETWEEN 156W AND 175W AND FROM 40N TO 18N W OF 172E. 

.WINDS 20 KT OR LESS REST OF AREA. 

.SEAS 12 TO 20 FT N OF LINE 30N154W 18N170W 18N178E 25N175E
23N160E. SEAS 12 TO 14 FT FROM 23N TO 28N E OF 144W. SEAS 8 TO 12
FT ELSEWHERE N OF LINE 30N150W 08N170W 08N160E AND N OF 20N E OF
147W. 
.24 HOUR FORECAST SEAS 12 TO 20 FT N OF LINE 30N174W 22N170E 
20N160E. SEAS 12 TO 16 FT N OF LINE 30N145W 22N152W 22N162W 
30N167W. SEAS 8 TO 12 FT ELSEWHERE N OF LINE 25N140W 10N157W 
04N165W 04N177W 10N170E 17N160E. 
.48 HOUR FORECAST SEAS 12 TO 18 FT N OF LINE 30N165W 24N180W 
25N160E. SEAS 12 TO 14 FT FROM 19N TO 27N BETWEEN 144W AND 152W. 
SEAS 8 TO 12 FT ELSEWHERE N OF LINE 18N140W 03N160W 03N180W 
08N160E. 

.SEAS 8 FT OR LOWER REST OF AREA.

.ITCZ 08N140W 09N150W 08N160W O6N170W. ISOLATED MODERATE TSTMS
WITHIN 60 NM OF ITCZ. 

$$

.FORECASTER BURKE. HONOLULU HI.


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