Yesterday was interesting in that there were many, short, stubby Cbs drifting around, some with virga as per above in view from Computer Sciences webcam. However, some of these eventually managed to grow deep enough to produce thunder and a bit of rain, along with some gusty winds. Several of the southeast Arizona reporting stations carried thunderstorm in the vicinity, and Nogales had thunder with 0.13" of rain. The Rincon RAWS reported 0.27" for yesterday afternoon.
This morning dawned cool and dry, and the Tucson sounding (above from SPC) shows that the middle-level CAPE of the last two days has vanished. This in spite of the fact that middle-level temperatures remain quite cool. The Atmo early forecast from the WRF-GFS (below) indicates no precipitation at all in Arizona through midnight. The new NAM forecast indicates the same. So, the main weather question for the day is whether or not TUS will have a high temperature back into the 100s.
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