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Day 1 Convective Outlook  
NWS Storm Prediction Center Norman OK
0800 PM CDT Sun Jun 12 2022

Valid 130100Z - 131200Z

...THERE IS AN ENHANCED RISK OF SEVERE THUNDERSTORMS FOR PARTS OF
WESTERN/CENTRAL SOUTH DAKOTA AND NORTH-CENTRAL NEBRASKA...

...SUMMARY...
Scattered severe thunderstorms across the northern and central High
Plains through tonight will be capable of producing large hail and
damaging winds.  Isolated severe storms also remain possible across
the lower Ohio Valley and parts of the southern middle Atlantic.

...Synopsis...
A broad upper trough continues to move into the interior West this
evening. Thunderstorms have developed along much of the central into
northern High Plains regions this afternoon. Several clusters of
thunderstorm activity are expected to continue eastward for at least
a few more hours. The greatest potential for upscale growth and
continued severe wind and hail risk appears to be near the Nebraska
and South Dakota border where a two clusters of storms may merge
later this evening. Warm advection into a frontal zone within South
Dakota should aid in the maintenance of this activity. Large hail
potential should diminish somewhat as storm mode beco*es less
favorable with time. Risk for damaging winds, including some gusts
in excess of 75 mph, are the primary risk this evening into the
overnight.

While uncertainty remains high in how much storms will develop late
in the period, elevated instability and weak warm advection may
support a few storms in parts of southern Illinois into Kentucky.
Marginally severe hail would likely be the main threat should storms
develop.

..Wendt.. 06/13/2022