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From: <ldm@weather.cod.edu>
Subject: Central Pacific: High Seas Analysis
To: <wx-tropl@lists.illinois.edu>
Message-ID: <20220301223327.8A18B1C0EEE@weather.cod.edu>
Date: Tue, 1 Mar 2022 22:33:27 +0000
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546 
FZPN40 PHFO 012233
HSFNP 

HIGH SEAS FORECAST
NATIONAL WEATHER SERVICE HONOLULU HI
2300 UTC TUE MAR 01 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SUPERSEDED BY NEXT ISSUANCE IN 6 HOURS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 MAR 01 2022.
24 HOUR FORECAST VALID 1800 UTC MAR 02 2022.
48 HOUR FORECAST VALID 1800 UTC MAR 03 2022.

.WARNINGS. 

...GALE WARNING...
.36 HOUR FORECAST NEW LOW 27N153W 1013 MB. WINDS 30 TO 35 KT
WITHIN 180 NM NE QUADRANT OF LOW. WINDS 20 TO 30 KT ELSEWHERE N OF
25N E OF 155W.
.48 HOUR FORECAST NEW LOW 27N151W 1010 MB. WINDS 30 TO 40 KT
WITHIN 360 NM NE QUADRANT OF LOW AND WITHIN 180 NM NW QUADRANT OF
LOW. ELSEWHERE WINDS 20 TO 30 KT N OF 24N E OF 157W.

.SYNOPSIS AND FORECAST.

.FRONT FROM 30N142W TO 25N150W TO 24N157W NEARLY STATIONARY. NE
WINDS 20 TO 25 KT N OF FRONT AND E OF 156W.
.24 HOUR FORECAST FRONT 26N140W TO 24N150W TO 25N157W. NE TO E 
WINDS 20 TO 25 KT N OF 25N E OF 157W. 
.48 HOUR FORECAST FRONT WEAKENED AND MERGED WITH FIRST TROUGH 
MENTIONED BELOW. 

.FRONT FROM 30N174W TO 26N177E TO 24N173E MOVING E 15 KT.
.24 HOUR FORECAST FRONT WEAKENED TO TROUGH FROM 30N165W TO 
20167W. 
.48 HOUR FORECAST TROUGH DISSIPATED.

.TROUGH FROM 16N155W TO 21N152W NEARLY STATIONARY.
.24 HOUR FORECAST TROUGH FROM 14N158W TO 20N154W.
.48 HOUR FORECAST TROUGH FROM 16N158W TO 25N152W TO LOW MENTIONED
IN GALE WARNING ABOVE. 

.TROUGH FROM 02N160E TO 07N162E NEARLY STATIONARY. SCATTERED
MODERATE TSTMS S OF 13N W OF 164E.
.24 HOUR FORECAST TROUGH DISSIPATED. 

.48 HOUR FORECAST NEW FRONT FROM 30N164E TO 29N160E. W TO SW WINDS
20 TO 25 KT N OF 29N W OF 170E.

.HIGH 29N162W 1022MB MOVING ENE 30 KT. RIDGES FROM 30N171E TO 
HIGH AND FROM 28N160E TO HIGH MOVING ENE 30 KT. 
.24 FORECAST HIGH MOVED N OF AREA. 

.RIDGE FROM 22N140W TO 20N145W MOVING SE SLOWLY.

.RIDGE FROM 30N160W TO 22N171W MOVING NE 20 KT.

.NE TO E WINDS 20 TO 25 KT FROM 05N TO 13N BETWEEN 161W AND
172E. E TO SE WINDS 20 TO 25 KT FROM 00N TO 04N BETWEEN 165W AND
155W.
.24 HOUR FORECAST SW WINDS 20 TO 25 KT N OF A LINE FROM 28N160E TO
30N170E. 

.OTHERWISE...WINDS 20 KT OR LESS REST OF FORECAST AREA.

.SEAS 8 TO 12 FT N OF A LINE FROM 20N160E TO 30N180W AND N OF 20N
E OF 159W. SEAS 8 TO 10 FT IN AREA BOUNDED BY 20N140W 13N160E
00N170W 00N140W 20N140W.
.24 HOUR FORECAST SEAS 8 TO 12 FT N OF A LINE FROM 29N160E TO
29N170E TO 21N178E TO 30N166W. SEAS 8 TO 10 FT E OF A LINE FROM
30N157W TO 10N140W. SEAS 8 TO 9 FT FROM 06N TO 11N BETWEEN 173W
AND 173E.
.48 HOUR FORECAST SEAS 12 TO 14 FT N OF 28N BETWEEN 155W AND 147W.
SEAS 8 TO 12 FT ELSEWHERE N OF 24N E OF 175W. SEAS 8 TO 10 FT N OF
28N W OF 175W.

.OTHERWISE...SEAS 8 FT OR LESS REST OF FORECAST AREA.

.ITCZ FROM 07N140W TO 08N150W TO 04N175E TO 06N164E. SCATTERED 
MODERATE TO STRONG TSTMS FROM 03N TO 07N BETWEEN 175W AND 165W.
SCATTERED MODERATE TSTMS WITHIN 270 NM N OF ITCZ W OF 175E. 
ISOLATED MODERATE TSTMS ELSEWHERE WITHIN 120 NM EITHER SIDE OF 
ITCZ E OF 175E. 

$$

.FORECASTER JELSEMA. HONOLULU HI.


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