The National Weather Service has issued a severe thunderstorm warning in the Tucson metropolitan area.
Radar reveals a storm capable of heavy lightning, hail, rain and winds up to 60 mph.
At 2 p.m., the storm was over Saguaro National Park East and moving southwest.
Additional storms are expected and one was dropping heavy rain on the Catalina Foothills between Sabino Canyon and Swan roads, north of Grant Road.
The warning is in effect until 3 p.m.