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Day 1 Convective Outlook  
NWS Storm Prediction Center Norman OK
0751 PM CDT Fri Apr 22 2022

Valid 230100Z - 231200Z

...THERE IS AN ENHANCED RISK OF SEVERE THUNDERSTORMS FROM THE TEXAS
PANHANDLE...NORTH INTO PORTIONS OF WESTERN NEBRASKA...

...SUMMARY...
At least isolated significant severe weather is possible across
portions of the High Plains tonight. Very large hail, damaging
straight-line winds, and a few tornadoes are anticipated.

...01z Update...

Early-evening water-vapor imagery depicts a well-defined upper
trough over the Great Basin shifting into the central Rockies.
Strong height falls will intensify during the overnight hours,
focused over the central High Plains were values will approach 210m
over the next 12hr. This pronounced dynamic system is strongly
diffluent at high levels across the High Plains and convection is
responding accordingly. Updrafts are deepening from the TX
Panhandle, north across western KS. A secondary corridor of
deepening convection arcs from the western Black Hills region across
SD. Strong LLJ will respond to this trough and intensify further
tonight across KS into southern NE. 00z soundings exhibit
significant SBCAPE at AMA and DDC; though DDC remains a bit capped
this evening, ongoing supercells just west of this data point should
be able to propagate east for the next few hours due to the
increasing LLJ and instability observed immediately downstream.
Overall, earlier thoughts regarding overnight severe threat continue
and minimal changes are warranted at 01z.

..Darrow.. 04/23/2022