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

Powerful monsoon storms slam into an Arizona residential area, turning streets into rivers and causing significant property ...

TUCSON, Ariz. (KGUN) — Our hot, dry weather pattern has chased monsoon away and allowed triple-digit heat to blanket much of southern Arizona. High temperatures will remain over 100° all the way into ...

FLAGSTAFF, AZ (AZFamily) — Isolated and scattered thunderstorms will continue in Arizona’s mountains this week, but the storms will likely become more widespread by the weekend. Those who are planning ...

PHOENIX (3TV/CBS 5)-- Known by many names of the years, the Arizona monsoon is one thing: unpredictable. But it’s that mystery that drove Dr. Jonny Malloy to write the book called North American ...

TUCSON, Ariz. (KGUN) — The monsoon has become more active and will deliver more thunderstorms to southern Arizona tomorrow. Tonight, in Tucson, we'll see isolated thunderstorms early, followed by ...

Monsoon storms are rumbling through central and southwestern Arizona less often but with more intensity than they were 60 years ago, according to a new study by researchers at the University of ...