Mammatus overhead yesterday at 3:50 pm MST.
Plot of detected CG flashes for 24-hours ending at 0830 UTC (1:30 am) this morning (below) shows that several thunderstorms occurred over eastern Pima county yesterday afternoon. There was a light shower here that produced gusty winds (30 to 40 mph) and 0.01" of rain - first in gauge since March 22nd. The airport reported thunder and gusts to 45 mph with a Trace and DM reported gusts to 53 mph. There were reports of a power pole and a tree down near DM.
The morning sounding from TWC/TUS (above) is fairly stable with winds less than 30 kt at all levels. Any storms today will likely stay on the higher elevations.
The 500 mb pattern (above is GFS forecast valid at 5:00 pm this afternoon) is very summer-like, with a weak anticyclone centered off to our northeast. The precipitation forecast from the 12 UTC WRF-RR (below) keeps the metro area dry through 6:00 am tomorrow morning.
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