Day 1 Convective Outlook  
NWS Storm Prediction Center Norman OK
0800 PM CDT Tue Jun 20 2023

Valid 210100Z - 211200Z

...THERE IS A SLIGHT RISK OF SEVERE THUNDERSTORMS ACROSS PARTS OF
THE NORTHERN PLAINS...AND PORTIONS OF CENTRAL AND SOUTHERN
LOUISIANA...

...SUMMARY...
Isolated to scattered severe thunderstorms persist into tonight
across parts of the northern Plains, and also the southern Louisiana
area.  Damaging winds and large hail will be the main threats.

...Northern Plains...
Strong/locally severe storms are ongoing near a surface cold front
across central North Dakota, and extending southward in a more
isolated manner across central South Dakota to north-central
Nebraska.  Meanwhile, more isolated storms are ongoing from
northwestern parts of the Nebraska Panhandle northwestward into
Wyoming.  

With the southeastern fringe of stronger southwesterly mid-level
flow atop this region, shear remains sufficient for organized
convection.  With ample instability indicated -- particularly in a
narrow axis in the vicinity of the surface front, local risk for
hail and damaging wind gusts is expected to continue over the next
several hours.

...Louisiana vicinity...
Strong/locally severe storms are ongoing across parts of central and
southern Louisiana at this time, and are drifting slowly
southward/southwestward with time.  Given a favorably moist/unstable
airmass across the area, and 40 kt north-northwesterly mid-level
flow providing ample shear, local severe risk will continue over the
next few hours across this region.

...Central Plains area...
CAM runs continue to hint that convective development may occur
later this evening across the northern Kansas/southern Nebraska
vicinity.  This development appears to be associated with a
short-wave trough emerging into western Kansas per WV imagery, and
which seems to be associated with isolated storm development from
the Nebraska Panhandle southward to western Kansas.  Once
established, some upscale growth could occur, with subsequent
southward propagation across central Kansas.  Locally strong wind
gusts, and possibly hail, could occur with the strongest storms,
should this somewhat-still-uncertain scenario evolve, and thus will
expand low hail/wind probabilities/MRGL risk eastward to central
portions of Nebraska and Kansas.

..Goss.. 06/21/2023