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From: <ldm@weather.cod.edu>
Subject: Central Pacific: High Seas Analysis
To: <wx-tropl@lists.illinois.edu>
Message-ID: <20220213223803.B23511C0EEE@weather.cod.edu>
Date: Sun, 13 Feb 2022 22:38:03 +0000
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139 
FZPN40 PHFO 132232
HSFNP 

HIGH SEAS FORECAST
NATIONAL WEATHER SERVICE HONOLULU HI
2300 UTC SUN FEB 13 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SUPERSEDED BY NEXT ISSUANCE IN 6 HOURS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 FEB 13 2022.
24 HOUR FORECAST VALID 1800 UTC FEB 14 2022.
48 HOUR FORECAST VALID 1800 UTC FEB 15 2022.

.WARNINGS. 

...GALE WARNING... 
.FRONT FROM 30N173W TO 18N178E TO 15N170E TO 13N160E MOVING E 10
KT. NW TO W WINDS 25 TO 35 KT N OF 25N BETWEEN 175E AND 163E. S 
TO SW WINDS 25 TO 35 KT WITHIN 150 NM E OF FRONT N OF 27N. WINDS 
20 TO 30 KT ELSEWHERE N OF A LINE FROM 26N164W TO 22N177W TO 
21N160E. NE WINDS 20 TO 25 KT WITHIN 180 NM N OF FRONT W OF 163E. 
ISOLATED MODERATE TSTMS WITHIN 180 NM E OF FRONT N OF 24N...AND N 
OF 27N BETWEEN 180E AND 170E. 
.24 HOUR FORECAST FRONT FROM 30N168W TO 18N178W TO 15N174E TO 
14N160E. NW TO W WINDS 30 TO 35 KT N OF 27N BETWEEN 170W AND 180E.
WINDS 20 TO 30 KT ELSEWHERE N OF A LINE FROM 28N162W TO 23N172W 
TO 25N177E TO 30N172E. 
.48 HOUR FORECAST FRONT FROM 30N159W TO 24N164W TO 21N171W. WINDS
EASED TO 20 KT OR LESS.

...GALE WARNING...
.LOW 28N153W 1013 MB MOVING SW 15 KT. TROUGH FROM LOW TO 29N152W 
TO LOW TO 23N150W. WINDS 25 TO 35 KT WITHIN 150 NM NW QUADRANT OF
LOW. WINDS 20 TO 30 KT ELSEWHERE N OF 26N BETWEEN 151W AND 157W. 
ISOLATED MODERATE TSTMS WITHIN 90 NM OF LOW... AND WITHIN 120 NM 
OF TROUGH S OF 24N. 
.24 HOUR FORECAST LOW DISSIPATED. TROUGH FROM 26N159W TO 22N157W.
WINDS 20 TO 25 KT WITHIN 150 NM OF TROUGH N OF 25N. 
.48 HOUR FORECAST TROUGH FROM 27N160W TO 18N160W. WINDS 
DIMINISHED TO 20 KT OR LESS.

...GALE WARNING...
.24 HOUR FORECAST NEW FRONT W OF AREA. S TO SW WINDS 30 TO 35 KT 
N OF 28N W OF 162E. S TO SW WINDS 20 TO 30 KT ELSEWHERE N OF A 
LINE FROM 29N164E TO 26N160E.
.48 HOUR FORECAST FRONT FROM 30N170E TO 24N160E. S TO SW WINDS 25
TO 35 KT WITHIN 210 NM E OF FRONT N OF 28N. NW WINDS 20 TO 30 KT 
W OF FRONT. S TO SW WINDS 20 TO 30 KT ELSEWHERE BETWEEN LINE FROM
30N178W TO 25N174E AND FRONT.

.SYNOPSIS AND FORECAST.

.TROUGH FROM 26N144W TO 14N145W MOVING W SLOWLY. SCATTERED
MODERATE TSTMS WITHIN 240 NM E OF TROUGH. SE WINDS 20 TO 25 WITHIN
60 NM OF TROUGH N OF 23N. 
.24 HOUR FORECAST TROUGH FROM 26N149W TO 17N147W. E TO SE WINDS 
20 TO 25 KT N OF LINE FROM 27N152W TO 20N146W TO 20N143W.
.48 HOUR FORECAST TROUGH FROM 25N151W TO 14N150W. NE TO E WINDS 
20 TO 25 KT E OF TROUGH.

.TROUGH FROM 10N167E TO 03N168E MOVING W 10 KT. SCATTERED 
MODERATE STRONG TSTMS WITHIN 180 NM OF TROUGH.
.24 HOUR FORECAST TROUGH DISSIPATED.

.NE WINDS 20 TO 25 KT FROM 07N TO 11N BETWEEN 154W AND 178E.
.24 HOUR FORECAST NE TO E WINDS 20 TO 25 KT FROM 06N TO 17N 
BETWEEN 177W AND 162E...AND FROM 05N TO 15N W OF 170E.
.48 HOUR FORECAST NE TO E WINDS 20 TO 25 KT FROM 04N TO 17N 
BETWEEN 170W AND 166E. SE TO E WINDS 20 TO 25 KT N OF 28N BETWEEN 
145W AND 155W. 

.RIDGE FROM 30N160W TO 24N165W TO 16N180E NEARLY STATIONARY...AND
GRADUALLY ERODING FROM THE SW. 

.RIDGE FROM 23N160E TO 19N174E MOVING E 25 KT.

.24 HOUR FORECAST NEW HIGH 26N167E 1018 MB. 
.48 HOUR FORECAST HIGH 28N171W 1021 MB. 

.OTHERWISE...WINDS 20 KT OR LESS OVER REMAINDER OF FORECAST AREA.

.SEAS 18 TO 22 FT N OF A LINE FROM 30N175W TO 24N176E TO 24N166E.
SEAS 12 TO 18 FT ELSEWHERE N OF A LINE FROM 30N171W TO 19N175E TO
19N160E. SEAS 8 TO 13 FT N OF 26N BETWEEN 151W AND 156W. ELSEWHERE
SEAS 8 TO 12 FT W OF LINE FROM 30N168W TO 13N168E. 
.24 HOUR FORECAST SEAS 18 TO 21 FT N OF A LINE FROM 30N171W TO 
25N179W TO 26N170E. SEAS 12 TO 18 FT ELSEWHERE N OF A LINE FROM 
30N162W TO 19N180E TO 20N170E TO 25N160E. SEAS 8 TO 12 FT 
ELSEWHERE N OF A LINE FROM 30N160W TO 07N180E TO 08N170E TO 
10N160E. SEAS 8 TO 10 FT FROM 26N TO 28N BETWEEN 156W AND 158W.
.48 HOUR FORECAST SEAS 12 TO 15 FT N OF A LINE FROM 30N158W TO 
17N176W TO 28N172E TO 28N160E. SEAS 8 TO 12 FT ELSEWHERE N OF A 
LINE FROM 30N146W TO 04N173W TO 04N173E TO 06N160E. SEAS 8 TO 9 FT
FROM 18N TO 22N E OF 144W.

.OTHERWISE...SEAS 8 FT OR LOWER OVER REMAINDER OF FORECAST AREA.

.ITCZ FROM 08N140W TO 06N160W TO 07N180E TO 05N171E. ISOLATED 
MODERATE TSTMS WITHIN 150 NM N OF ITCZ E OF 145W.. AND WITHIN 150
NM N OF ITCZ BETWEEN 175W AND 180E. 


$$

.HONOLULU FORECAST OFFICE.


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