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From: <ldm@weather.cod.edu>
Subject: Central Pacific: High Seas Analysis
To: <wx-tropl@lists.illinois.edu>
Message-ID: <20220309153115.529B51C0EEF@weather.cod.edu>
Date: Wed, 9 Mar 2022 15:31:15 +0000
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229 
FZPN40 PHFO 091530
HSFNP 

HIGH SEAS FORECAST
NATIONAL WEATHER SERVICE HONOLULU HI
1700 UTC WED MAR 09 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SUPERSEDED BY NEXT ISSUANCE IN 6 HOURS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 MAR 09 2022.
24 HOUR FORECAST VALID 1200 UTC MAR 10 2022.
48 HOUR FORECAST VALID 1200 UTC MAR 11 2022.

.WARNINGS. 

...GALE WARNING...
.COLD FRONT FROM LOW JUST N OF 30N TO 30N165E TO 27N160E MOVING 
E AT 25 KT. S TO SW WINDS 35 TO 40 KT 150 NM E OF COLD FRONT N OF
28N BETWEEN 169E AND 167E. WINDS 25 TO 35 KT ELSEWHERE N OF A 
LINE 30N172E TO 27N167E TO 30N162E...AND WINDS 20 TO 25 KT N OF A
LINE FROM 30N174E TO 24N164E TO 26N160E. 
.24 FORECAST COLD FRONT FROM 30N179E TO 27N165E TO 25N165E. SW 
WINDS 20 TO 25 KT FROM FRONT TO 30N BETWEEN 172W AND 179E. 
.48 HOUR FORECAST FRONT LIFTED N OF AREA. WINDS DIMINISHED TO 20 
KT OF LESS.


...GALE WARNING...
.36 HOUR FORECAST LOW NEAR 30N164E 1000 MB. COLD FRONT FROM LOW 
TO 26N164E TO 21N160E MOVING E 25 KT. SW WINDS 35 TO 40 KT N OF 
25N W OF 167E. WINDS 30 TO 35 KT ELSEWHERE N OF 24N W OF 170E...
AND WINDS 20 TO 30 KT N OF A LINE FROM 30N172E TO 28N170E TO
26N174E TO 20N160E.


.SYNOPSIS AND FORECAST.

.COLD FRONT FROM 30N167W TO 25N172W TO 24N179W THENCE A
DISSIPATING COLD FRONT TO 24N176E. COLD FRONT MOVING E 25 KT N 
OF 27N AND DISSIPATING S OF 27N. 
.24 HOUR FORECAST WEAKENING FRONT FROM 30N163W TO 27N169W. 
.48 HOUR FORECAST WEAK FRONT MOVED NE OF AREA. 

.TROUGH FROM 30N145W TO 25N147W MOVING E SLOWLY. SCATTERED
MODERATE TSTMS WITHIN 210 NM E OF TROUGH N OF 25N.
.24 HOUR FORECAST TROUGH LIFTED N OF AREA. 

.RIDGE FROM 30N156W TO 25N161W TO 21N176W TO 19N162E MOVING E
10 KT AND ERODING FROM SW. 

.WINDS NE 20 TO 25 KT FROM 07N TO 20N E OF 148W...AND FROM 11N TO
17N BETWEEN 148W AND 156W....AND FROM ITCZ TO 14N W OF 156W. 
.24 HOUR FORECAST WINDS NE TO E 20 TO 25 KT FROM ITCZ TO 19N E OF
152W...AND FROM ITCZ TO 16N BETWEEN 152W AND 170W...AND FROM ITCZ
TO 12N W OF 170W. 
.48 HOUR FORECAST WINDS NE 20 TO 25 KT FROM ITCZ TO 19N E OF 
153W...AND FROM ITCZ TO 17N BETWEEN 153W AND 162W...AND FROM ITCZ 
TO 14N BETWEEN 162W AND 174E.

.WINDS 20 KT OR LESS REMAINDER FORECAST AREA.

.SEAS 12 TO 15 FT N OF 27N W OF 174E. SEAS 8 TO 12 FT ELSEWHERE N
OF A LINE FROM 30N180E TO 23N172E TO 18N160E. SEAS 8 TO 9 FT 
WITHIN 540 NM W OF TROUGH MENTIONED ABOVE N OF 24N...AND FROM ITCZ
TO 15N E OF 150W...AND FROM ITCZ TO 12N BETWEEN 163W AND 170E.
.24 HOUR FORECAST SEAS 8 TO 11 FT N OF A LINE FROM 30N169W TO 
11N170E TO 13N165E TO 25N174E TO 23N160E. SEAS 8 TO 10 FT FROM ITCZ 
TO 20N E OF 160W...AND FROM THE ITCZ TO 13N W OF 165W. 
.48 HOUR FORECAST SEAS 8 TO 12 FT N OF A LINE FROM 30N172 TO 20N160E. 
SEAS 8 TO 9 FT N OF 27N BETWEEN 180W AND 160W...AND 300 NM ON EITHER 
SIDE OF ITCZ E OF 157W AND N OF ITCZ TO 18N BETWEEN 170W TO 170E.

.SEAS 8 FT OR LOWER REMAINDER FORECAST AREA. 

.ITCZ FROM 07N140W TO 09N149W TO 07N160W TO 05N180W TO 03N160E. 
ISOLATED TO SCATTERED MODERATE TSTMS WITHIN 150 NM EITHER SIDE OF ITCZ 
E OF 156W AND W OF 180W. 

$$

.FORECASTER BLOOD. HONOLULU HI.


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