Round Two

Early morning showers have been moving across eastern Pima County, providing the second precipitation event of this week (composite radar echoes above from 7:16 am MST).

However, this has proved to be a lightweight event, except for higher elevations. Shown here are three ALERT sectors for 24-hour precipitation ending a bit after 7:00 am this morning. Amounts across the metro area have been very light - TUS Trace; D-M AFB 0.01", Atmo 0.03" and here 0.06". The heaviest amounts extend from the Catalinas, across Redington Pass to the Rincons.

The GFS ensemble plumes for QPF were too high yesterday (see second post below). The QPF plumes from 06 UTC this morning appear more accurate for TUS and the low elevations of the metro area. The models, however, are now forecasting a heavier event during the day tomorrow (above); so we'll watch to see how that plays out.