Cumulus sitting over the Catalinas at 0810 am MST this morning.
Plot of detected CG flashes (from Atmo and Vaisala) for 24 hours through 0833 UTC this morning (above) shows almost no thunderstorm activity over eastern Pima County.
ALERT plots (above and below) for 24 hours ending at 0800 am this morning show most precipitation on and near the mountains, with scattered reports across the lower elevations. Here at house the 0.01" before sunrise was all that we had. The airport reported a Trace, DM had 0.04", and Atmo came in with 0.07". All in all a pretty low-key day.
Morning sounding (above from TWC/TUS) looks favorable for storms today. However, it appears that slightly warmer and drier air will advect in at middle-levels, decreasing CAPE as day progresses. Current NWS forecast is for 20 POPs for rain at airport today. Forecast below (from the 12 UTC WRF-RR) is for rainfall through midnight on Labor Day. So, basically a mostly warm and dry three day Holiday weekend.
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