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From: <ldm@weather.cod.edu>
Subject: Central Pacific: High Seas Analysis
To: <wx-tropl@lists.illinois.edu>
Message-ID: <20220218031721.14F891C0EEE@weather.cod.edu>
Date: Fri, 18 Feb 2022 03:17:21 +0000
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135 
FZPN40 PHFO 180317
HSFNP 

HIGH SEAS FORECAST
NATIONAL WEATHER SERVICE HONOLULU HI
0500 UTC FRI FEB 18 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SUPERSEDED BY NEXT ISSUANCE IN 6 HOURS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 FEB 18 2022.
24 HOUR FORECAST VALID 0000 UTC FEB 19 2022.
48 HOUR FORECAST VALID 0000 UTC FEB 20 2022.

.WARNINGS. 

...GALE WARNING...
.TROUGH FROM 18N150W TO 13N152W TO 10N154W TO 06N155W. N TO NE 
WINDS 30 TO 35 KT FROM 18N TO 13N WITHIN 180 NM W OF TROUGH.
WINDS 20 TO 30 KT ELSEWHERE FROM 19N TO 09N E OF 156W.
.24 HOUR FORECAST TROUGH FROM 17N153W TO 12N151W TO 09N153W.
E WINDS 20 TO 25 KT FROM 20N TO 10N E OF 152W.
.48 HOUR FORECAST TROUGH FROM 17N151W TO 15N153W TO 10N154W.
E TO SE WINDS 20 TO 25 KT FROM 21N TO 10N E OF 151W.

.TROUGH FROM 28N171E TO 21N160E NEARLY STATIONARY. S TO SE 
WINDS 30 TO 35 KT N OF 27N BETWEEN 176E AND 170E. SE WINDS
20 TO 30 KT ELSEWHERE N OF 25N BETWEEN 180E AND 170E.
.TROUGH MERGED WITH FRONT DESCRIBED DIRECTLY BELOW.

.SYNOPSIS AND FORECAST.

.FRONT FROM 30N164E TO 26N160E MOVING E 15 KT. ISOLATED
MODERATE TSTMS N OF 27N WITHIN 60 NM OF FRONT.
.24 HOUR FORECAST FRONT FROM 30N176E TO 20N160E. S TO SE WINDS
20 TO 25 KT N OF 28N BETWEEN 177W AND 177E. NW WINDS 20 TO
25 KT N OF A LINE FROM 30N166E TO 26N160E. 
.48 HOUR FORECAST FRONT FROM 30N176W TO 21N167E. N TO NE WINDS 
20 TO 30 KT N OF FRONT.

.TROUGH FROM 30N157W TO 19N155W MOVING E SLOWLY. E TO SE WINDS 
20 TO 25 KT N OF 19N E OF 153W. ISOLATED MODERATE TSTMS WITHIN 
240 NM E OF TROUGH.
.24 HOUR FORECAST TROUGH FROM 30N153W TO 18N153W. SE WINDS 
20 TO 25 KT N OF 25N BETWEEN 147W AND 154W.
.48 HOUR FORECAST TROUGH FROM 30N150W TO 20N154W. SE WINDS 
20 TO 25 KT N OF 26N BETWEEN 147W AND 151W.

.FRONT FROM 30N162W TO 25N171W TO 25N180E. NE TO E WINDS 20
TO 25 KT N OF 21N BETWEEN 160W AND 177E.
.24 HOUR FORECAST FRONT DISSIPATED. WINDS MERGED WITH WIND
AREA DESCRIBED BELOW.

.RIDGE FROM 30N174W TO 21N165E NEARLY STATIONARY.

.E TO NE WINDS 20 TO 30 KT BOUNDED BETWEEN 22N167W TO 09N161W
TO 00N175W TO 00N160E TO 13N160E TO 22N178E TO 22N167W.
.24 HOUR FORECAST N TO NE WINDS 20 TO 30 KT BOUNDED BETWEEN
30N157W TO 05N168W TO 00N170E TO 00N160E TO 14N160E TO 30N169E
TO 30N157W.
.48 HOUR FORECAST NE WINDS 20 TO 25 KT BOUNDED BETWEEN 20N166W
TO 04N177W TO 01N160E TO 20N160E TO 20N166W.

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

.SEAS 12 TO 13 FT N OF 26N BETWEEN 175E AND 170E. SEAS 8 TO 12 FT 
ELSEWHERE N OF A LINE FROM 06N140W TO 08N156W TO 00N172W TO 
00N172E TO 02N160E.
.24 HOUR FORECAST SEAS 12 TO 16 FT N OF A LINE FROM 30N167E TO 
25N160E. SEAS 8 TO 12 FT ELSEWHERE N OF A LINE FROM 30N170E TO
20N160E. 8 TO 12 FT BOUNDED BETWEEN 05N140W TO 
08N159W TO 25N157W TO 10N170W TO 02N175E TO 04N160E TO 16N160E TO 
30N173W TO 30N148W TO 05N140W.
.48 HOUR FORECAST SEAS 12 TO 14 FT FROM 25N TO 19N W OF 169E.
SEAS 12 TO 13 FT N OF 29N BETWEEN 160W AND 164W. SEAS 8 TO 12 FT 
ELSEWHERE N OF 02N W OF 180E. SEAS 8 TO 12 FT ELSEWHERE WITHIN
480 NM OF A LINE FROM 14N180E TO 30N168W...AND WITHIN A 150 NM
LINE FROM 30N168W TO 10N140W.

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

.ITCZ FROM 07N140W TO 11N150W. ISOLATED MODERATE TSTMS WITHIN 180
NM N OF ITCZ. 


$$

.FORECASTER FOSTER. HONOLULU HI.


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