Mesovortices are small, intense areas of rotation that can spin inside or around the eye of a powerful hurricane, creating extreme wind and tornadoes after landfall.

Tempe Mayor Corey Woods has signed an emergency declaration for the city, which is a step toward securing funding after a severe storm and microburst wreaked havoc earlier this week. Many businesses, ...

The meteorological phenomena of microbursts and windshear, particularly during the final approach phase of flight, can be extremely hazardous, and in the worst cases, fatal for aircraft. Fortunately, ...

PHOENIX (AZFamily) — The Monday afternoon microburst that ripped through Tempe and the surrounding areas had some people wondering if they had been hit by a tornado. The National Weather Service ...

"We saw rainfall upwards of half an inch in 10 to 15 minutes," a National Weather Service meteorologist told The Arizona Republic.

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.