It has been very dry and mostly tranquil here in Tucson during most of October and early November. October was exceedingly dry with rain at house on only one day (late on the 2nd) that amounted to only 0.05". A weak, upper-level short-wave came by off the Pacific yesterday and produced an afternoon with thick heavy cloud, and some virga and mammatus. A quite dreary afternoon actually.
This morning there are puffy Cu floating around and a few mini-Cbs, as in the photo above. Note the classic Cb structure for this tiny cloud - a clearly distinct updraft area with darkened, flat cloud base, anvil, and snow-crystal virga falling out of the down-shear side of the cloud. Quite an amazing little Cb. That's not a drifting weather balloon above the Cb, but is rather the waning, 3/4 moon. Photo was taken at 8 am this morning (Thursday Nov. 5th, 2009) looking to the west.
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