The National Weather Service has issued severe thunderstorm and flash flood warnings for the Tucson area on Sept. 6.

The National Weather Service in Flagstaff has issued a Flash Flood Warning for, Coconino County in north central Arizona, ...

There were at least two confirmed tornadoes amid a flurry of warnings as thunderstorms moved through eastern South Dakota during the afternoon and evening of July 28, according to the National Weather ...

A flash flood warning was issued by the National Weather Service in Flagstaff at 12:09 p.m. on Thursday, Sept. 4.

The tornado warning sirens were heard sounding at 4:20 a.m. in Grand Forks. Power was out in parts of Grand Forks Friday morning. Officials with Thompson-Valley United Cooperative elevator in Thompson ...