In about 15 minutes, Tempe recorded nearly three-quarters of an inch of rain. A supercell thunderstorm forms when wind speed and direction change with height, a phenomenon called wind shear.

TEMPE, AZ (AZFamily) — Tempe leaders provided an update on Monday’s monsoon damage and what steps the city is taking in cleanup and restoration efforts. “Obviously, this is a very challenging day,” ...

TEMPE, AZ (AZFamily) — After a microburst left tens of thousands of homeowners without power and city-wide damage, Tempe Mayor Corey Woods issued an emergency declaration on Wednesday to help with ...

A powerful supercell thunderstorm, which triggered a microburst in Tempe, dropped heavy rain across the East Valley Oct. 13, flooding streets and toppling trees as wind gusts neared 70 mph. In about ...