View from campus at 10:00 am MST shows spot of sunshine, and darkening to left as thunderstorm approaches north part of metro after developing over the Tucson Mountains.
The storm core did a direct here at house with: very nasty lightning, heavy downpour producing just over half an inch, and two short periods of pea-sized hail. Composite radar echo above is from 10:21 am when core was overhead here. Lightning was severe enough that we rushed to shut down our PCs,
The CG flashes below in pink and white show the thunderstorm progressing across north part of Tucson. The detected flashes also show that storms to southeast did not develop northwestward, but rather that a new line developed at mid-morning.
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