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, ...

BELLEMONT, Ariz. — Two tornadoes touched down in northern Arizona early Wednesday, derailing 28 cars of a parked freight train, blowing semis off the highway and smashing out the windows of dozens of ...

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 ...