As of about 19z:
Severe thunderstorm warning issued
for large hail in the NW edge of the CWA, just south of KCZT. Strong
deep-layered shear (0-6 km layer), versus weaker 0-1 km values argues
for hail producing supercells and possibly isolated downburst winds,
versus tornadic storms. Reflectivity jumps in the mid-levels on the
KDRT radar seemed to portend a near-future jump in ProbSevere values for
this storm.
A collision of a northward moving
convergence boundary with the southward moving synoptic boundary at the
eastern end of the CWA has touched off additional convection. This is
near a gradient zone in stability/shear. Lightning flash
rates/overshooting tops are not overly impressive, as of yet. We'll
continue to monitor. - J-money

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