Heavy clouds over central and eastern Catalinas at 3:00 pm MST yesterday afternoon We had a light shower here around 4:00 pm, but it only left 0.04" in the gauge. Other spots around area did much better (e.g., airport had 0.17" along with thunder, and two ALERT sites had over half an inch).
Image at bottom shows snow cover at the Mt. Lemmon General Store this morning.
The TWC sounding at 00 UTC yesterday (above) was quite similar to that forecast by the WRF - see previous post. There was enough CAPE to support thunderstorms, as per plot of CG flashes (below) for 24-hours ending at midnight last night (from Atmo and Vaisala). Note that much of the metro area was in in a donut hole.
ALERT observations for 24-hours ending at 8:00 am this morning. Most sites in the central and north metro had a Trace to 0.03" - i.e., not enough to make the ALERT cutoff.
Main question now is whether this event will be the only one for the month? The current model forecasts indicate that this may be the case.
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