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From: <ldm@weather.cod.edu>
Subject: Central Pacific: High Seas Analysis
To: <wx-tropl@lists.illinois.edu>
Message-ID: <20220120152740.C69B21C0EEE@weather.cod.edu>
Date: Thu, 20 Jan 2022 15:27:40 +0000
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551 
FZPN40 PHFO 201527
HSFNP 

HIGH SEAS FORECAST
NATIONAL WEATHER SERVICE HONOLULU HI
1700 UTC THU JAN 20 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SUPERSEDED BY NEXT ISSUANCE IN 6 HOURS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 20 2022.
24 HOUR FORECAST VALID 1200 UTC JAN 21 2022.
48 HOUR FORECAST VALID 1200 UTC JAN 22 2022.

.WARNINGS. 

...GALE WARNING...
.FRONT FROM 30N167W TO 23N180E TO 18N165E TO 18N160E MOVING E 20 
KT. NW TO W WINDS 30 TO 35 KT N OF 27N BETWEEN 174W AND 177E. E TO
SW WINDS 30 TO 35 KT WITHIN 300 NM E OF FRONT N OF 27N. ELSEWHERE
WINDS 20 TO 30 KT N OF LINE FROM 30N151W TO 22N175W TO 30N164E.
.24 HOUR FORECAST FRONT FROM 30N156W TO 26N160W TO 20N180E. WINDS
20 TO 25 KT N OF 28N BETWEEN 151W AND 172W. 
.48 HOUR FORECAST DISSIPATING FRONT FROM 30N147W TO 24N155W TO 
22N160W. N WINDS 20 TO 25 KT N OF 27N BETWEEN FRONT AND 152W. 

...GALE WARNING...
.24 HOUR FORECAST FRONT ALONG 30N162E TO 30N160E. SW TO W WINDS 
30 TO 35 KT N OF 28N BETWEEN 170E AND 165E. ELSEWHERE SW TO W 
WINDS 20 TO 30 KT WINDS NW OF LINE FROM 30N178E TO 25N170E TO 
23N160E. 
.48 HOUR FORECAST FRONT FROM 30N177E TO 19N160E. NW TO W WINDS 30
TO 40 KT N OF 25N BETWEEN 172E AND 165E. WINDS 20 TO 30 KT 
ELSEWHERE NW OF LINE FROM 30N168W TO 22N170E TO 21N160E. 

...GALE WARNING...
.24 HOUR FORECAST LOW JUST E OF AREA NEAR 23N139W 1009 MB. WINDS 
30 TO 35 KT FROM 24N TO 27N E OF 142W. 
.48 HOUR FORECAST LOW 24N143W 1012 MB. SE WINDS 20 TO 25 KT 
WITHIN 180 NM NE QUADRANT OF LOW. 

.SYNOPSIS AND FORECAST.

.RIDGE FROM 30N142W TO 21N158W TO 18N178W MOVING NE SLOWLY.

.RIDGE FROM 24N160E TO 25N170E MOVING S SLOWLY AND ERODING FROM
THE E. 

.24 HOUR FORECAST HIGH 27N177E 1016 MB. 
.48 HOUR FORECAST HIGH MOVED N OF AREA. 

.24 HOUR FORECAST NE WINDS 20 TO 25 KT FROM 06N TO 12N BETWEEN
170W AND 178W.
.48 HOUR FORECAST NE WINDS 20 TO 25 KT FROM 06N TO 14N BETWEEN 
160W AND 180E. 

.WINDS 20 KT OR LESS REST OF FORECAST AREA.

.SEAS 18 TO 26 FT N OF LINE FROM 30N164W TO 22N175W TO 20N165E TO
21N160E. SEAS 12 TO 18 FT ELSEWHERE N OF LINE FROM 30N160W TO 
22N175W TO 20N160E. SEAS 8 TO 12 FT ELSEWHERE N OF LINE FROM 
26N160E TO 17N180E TO 15N160E. SEAS 8 TO 9 FT FROM 07N TO 14N 
BETWEEN 164W AND 176W...AND N OF 22N BETWEEN 150W AND 160W. 
.24 HOUR FORECAST SEAS 18 TO 22 FT N OF 26N BETWEEN 162W AND 
171W. SEAS 12 TO 18 FT ELSEWHERE N OF LINE FROM 30N154W TO 20N174W
TO 18N173E TO 25N168E TO 25N160E. SEAS 8 TO 12 FT ELSEWHERE N OF 
LINE FROM 30N150W TO 11N178E TO 11N166E TO 08N160E. SEAS 12 TO 15 
FT N OF 24N E OF 143W. SEAS 8 TO 12 FT ELSEWHERE N OF 20N E OF 
145W. SEAS 8 TO 9 FT FROM 06N TO 12N BETWEEN 156W AND 177W.
.48 HOUR FORECAST SEAS 18 TO 20 FT N OF 27N BETWEEN 169E AND 
162E. SEAS 12 TO 18 FT ELSEWHERE N OF LINE FROM 26N180E TO 22N167E
TO 22N160E. SEAS 8 TO 12 FT ELSEWHERE N OF LINE FROM 20N180E TO 
19N160E. SEAS 12 TO 17 FT N OF LINE 25N150W TO 20N161W TO 20N168W 
TO 29N173W. SEAS 8 TO 12 FT ELSEWHERE IN AREA BOUNDED BY 30N180E 
30N140W 23N140W 04N168W 04N172E 15N172E 30N180E.

.SEAS 8 FT OR LESS REST OF FORECAST AREA.

.ITCZ FROM 09N140W TO 07N157W TO 09N174W.

$$

.HONOLULU FORECAST OFFICE.


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