A team 22 meteorologists and weather experts has spent years developing the first standardized dust storm scale.

Tornadoes were spotted around the Navajo Nation and at least one touched down near a community in southeastern Utah. Tornadoes are rare in Arizona, but as many as four to six develop each year, ...

Severe weather outbreaks aren't just for the Plains, South or Midwest. From Oct. 5-6, 2010, 15 years ago, Arizona endured a bizarrely busy round of damaging severe thunderstorms, including huge hail ...