Shortly before 2300Z, development of t-storms took place just E of CYS.  A few CGs, intensifying, and moving NE.  Instability remains marginal in this area…higher to the north…and in western NE where the atmosphere has heated up after losing an earlier cirrus deck.  Will closely monitor available tools as this storm crosses the area.

Update:  strong, not svr, storm continues now just NW CYS at 23:40Z.  Has shown slight weakening.  ProbSevere has matched that pretty well…down to 57% from a high of 66%.  Maximum MRMS MESH was near 1″ at 66%, down to .88″ at 57%. db