The 500 mb forecast above is valid at 11:00 am MST next Wednesday, March 22nd. A cold, negatively-tilted short-wave trough is forecast to be sweeping across Arizona at that time. The forecast sounding for Tucson at 10:00 am that morning (below) is quite impressive wrt to the current very hot and dry soundings. There is CAPE and 20 mm of PW in the forecast skewT as another weakening AR sweeps by southern Arizona. The model's forecast of composite radar echoes valid at 11:00 am that morning (bottom) is also very impressive.
Of course, this is VERY far ahead and it will be interesting to see if the models prove more accurate than they were for the "event" of February 28th.