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From: <ldm@weather.cod.edu>
Subject: Central Pacific: High Seas Analysis
To: <wx-tropl@lists.illinois.edu>
Message-ID: <20220213153216.52D601C0EEE@weather.cod.edu>
Date: Sun, 13 Feb 2022 15:32:16 +0000
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188 
FZPN40 PHFO 131531
HSFNP 

HIGH SEAS FORECAST
NATIONAL WEATHER SERVICE HONOLULU HI
1700 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SUPERSEDED BY NEXT ISSUANCE IN 6 HOURS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 1200 UTC FEB 13 2022.
24 HOUR FORECAST VALID 1200 UTC FEB 14 2022.
48 HOUR FORECAST VALID 1200 UTC FEB 15 2022.

.WARNINGS. 

...GALE WARNING... 
.FRONT FROM 30N173W TO 22N180E TO 13N160E MOVING E 10 KT. NW TO W
WINDS 25 TO 35 KT N OF 25N W OF 178E. S TO SW WINDS 25 TO 30 KT 
WITHIN 240 NM E OF FRONT N OF 27N. WINDS 20 TO 30 KT ELSEWHERE N OF 
A LINE FROM 26N163W TO 25N171W TO 22N178W TO 21N170E TO 23N160E.
ISOLATED MODERATE TSTMS WITHIN 180 NM OF FRONT N OF 26N...AND N OF
27N BETWEEN 177E AND 167E.
.24 HOUR FORECAST FRONT FROM 30N169W TO 21N176W TO 14N176E TO 
12N160E. NW TO W WINDS 30 TO 40 KT N OF 27N BETWEEN 177W AND 173E.
WINDS 20 TO 30 KT ELSEWHERE N OF A LINE FROM 28N164W TO 25N172W TO 
22N180E TO 29N168E. NE WINDS 20 TO 25 KT WITHIN 300 NM N OF FRONT 
BETWEEN 180E AND 170E.
.48 HOUR FORECAST FRONT FROM 30N162W TO 23N166W TO 16N176E. NE TO E
WINDS 20 TO 25 KT WITHIN 240 NM N OF FRONT W OF 170W.

...GALE WARNING...
.LOW 29N151W 1012 MB MOVING SW 15 KT. TROUGH FROM LOW TO 28N149W TO
24N149W MOVING WSW 10 KT. WINDS 25 TO 35 KT WITHIN 150 NM NW 
QUADRANT OF LOW. WINDS 20 TO 30 KT ELSEWHERE N OF 27N BETWEEN 151W 
AND 156W. ISOLATED MODERATE TSTMS N OF 29N BETWEEN 149W AND 153W...
AND WITHIN 30 NM OF A LINE FROM 22N150W TO 25N149W.
.24 HOUR FORECAST LOW 26N157W 1013 MB. TROUGH FROM 29N159W TO LOW 
TO 22N156W. WINDS 20 TO 25 KT WITHIN 180 NM N AND NE QUADRANTS OF 
LOW.
.48 HOUR FORECAST LOW DISSIPATED. TROUGH FROM 27N160W TO 22N160W. 
WINDS DIMINISHED TO 20 KT OR LESS.

...GALE WARNING...
.36 HOUR FORECAST NEW FRONT JUST W OF AREA. S TO SW WINDS 30 TO 40 
KT N OF A LINE FROM 29N166E TO 27N160E. S TO SW WINDS 20 TO 30 KT 
ELSEWHERE N OF A LINE FROM 29N169E TO 27N166E TO 25N160E.
.48 HOUR FORECAST FRONT FROM 30N167E TO 27N164E TO 26N160E. S TO SW 
WINDS 25 TO 40 KT WITHIN 300 NM E OF FRONT N OF 27N. NW WINDS 25 TO 
30 KT W OF FRONT. S TO SW WINDS 20 TO 30 KT ELSEWHERE N OF A LINE
LINE FROM 29N176E TO 27N174E TO 25N169E TO 24N160E. 

.SYNOPSIS AND FORECAST.

.TROUGH FROM 26N144W TO 17N145W MOVING W SLOWLY. ISOLATED MODERATE
TSTMS WITHIN 180 NM E OF TROUGH N OF 20N...AND FROM 26N TO 29N 
BETWEEN 141W AND 146W.
.24 HOUR FORECAST TROUGH FROM 25N149W TO 17N147W. E TO SE WINDS 20 
TO 25 KT BETWEEN TROUGH AND 142W N OF 22N.
.48 HOUR FORECAST TROUGH FROM 27N154W TO 19N150W. E TO SE WINDS 20 
TO 25 KT N OF A LINE FROM 20N140W TO 22N147W TO 30N154W.

.TROUGH FROM 10N169E TO 03N168E MOVING W 10 KT. SCATTERED MODERATE 
STRONG TSTMS WITHIN 180 NM W OF TROUGH. ISOLATED MODERATE TSTMS 
ELSEWHERE S OF 10N W OF 169E.
.24 HOUR FORECAST TROUGH DISSIPATED.

.NE TO E WINDS 20 TO 25 KT FROM 09N TO 11N BETWEEN 165W AND 175W.
.24 HOUR FORECAST NE TO E WINDS 20 TO 25 KT FROM 08N TO 13N BETWEEN 
168W AND 170E...AND FROM 05N TO 15N W OF 170E.
.48 HOUR FORECAST NE TO E WINDS 20 TO 25 KT FROM 05N TO 15N W OF 
165W. 

.RIDGE FROM 30N160W TO 21N170W TO 16N176E MOVING E SLOWLY...AND
GRADUALLY ERODING FROM THE SW. 

.RIDGE FROM 21N160E TO 17N168E MOVING E 25 KT.

.24 HOUR FORECAST NEW HIGH 28N163E 1019 MB. 
.48 HOUR FORECAST HIGH 28N177W 1019 MB. 

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

.SEAS 18 TO 23 FT N OF A LINE FROM 30N177W TO 25N177E TO 25N168E TO
25N164E. SEAS 12 TO 18 FT ELSEWHERE N OF A LINE FROM 30N173W TO
19N174E TO 19N160E. SEAS 8 TO 12 FT N OF 27N BETWEEN 151W AND 
156W...AND ELSEWHERE N OF A LINE FROM 30N168W TO 17N173E TO 13N160E. 
.24 HOUR FORECAST SEAS 18 TO 22 FT N OF A LINE FROM 30N174W TO
26N180E TO 26N173E TO 30N166E. SEAS 12 TO 18 FT ELSEWHERE N OF A 
LINE FROM 30N165W TO 17N180E TO 16N167E TO 24N160E. SEAS 8 TO 12 FT 
ELSEWHERE N OF A LINE FROM 30N162W TO 09N177E TO 06N160E. SEAS 8 TO
10 FT N OF 25N BETWEEN 154W AND 159W. 
.48 HOUR FORECAST SEAS 12 TO 17 FT N OF A LINE FROM 30N168W TO
15N175W TO 15N172E TO 26N166E TO 27N160E. SEAS 8 TO 12 FT ELSEWHERE 
N OF A LINE FROM 26N156W TO 04N173W TO 04N160E. SEAS 8 TO 9 FT N OF
26N BETWEEN 145W AND 156W.

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

.ITCZ FROM 07N140W TO 08N165W TO 08N180E. ISOLATED MODERATE TSTMS 
WITHIN 90 NM OF ITCZ. 

$$

.FORECASTER HOUSTON. HONOLULU HI.


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