Sunday, July 23, 2017

Brief Overview - Yesterday's Heavy Storms

Outflows from storms to south and line of storms moving into Catalinas from the northeast, collided over or near the mountains, and new storms were developing by 5:00 pm MST - above. By 7:30 pm mountains were becoming visible as serious street flooding was affecting north-central Tucson. We were on the east side near Kolb and 22nd and headed home about 6:50 pm - this is about a 25 minute drive usually. We were stranded at the intersection of Tucson and Glenn about 7:30 pm, when I took the photo below. Tucson was flowing as if it were a wash and cars were stalled in all directions in the high water. It took us more than an hour and a half before we zigged back and forth to avoid the worst flooding and got home. Quite a trip.

The map below shows ALERT network rainfall for 24-hours ending at 6:00 am this morning - essentially 100% coverage again - with three sites along west side of network having 0.04" or less. There were 13 sites reporting more than an inch. Here at the house I found 1.40" in the gauge once we got back.

This gives us 5.46" for July - second highest July amount since we've been here. Wettest July was in 1999 with 6.63".

Found three RAWS sites in southeast Arizona with more than an inch and also noted gusts to 68 mph up at Prescott and 52 mph at Safford. Quite an afternoon and evening!

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