PHOENIX — Monsoon storms developed along the Mogollon Rim and moved southwest toward the Valley Thursday as of 3 p.m.

Damaging winds, hail, flash flooding and dust are all expected in the Valley Thursday night, according to 12 News Meteorologist Lindsay Riley.

The Phoenix area and locations further west all the way toward Blythe, California, have the best chances for severe storms, according to the National Weather Service.

A blowing dust advisory for southern Maricopa County and western Pinal County is in effect from 3 p.m. to 10 p.m., as the storms and outflows are expected to reduce visibility under one mile and produce 40 mph wind gusts.

Impacted areas in the advisory include south Phoenix, Gilbert, Chandler, Casa Grande and Florence.

Follow Lindsay Riley on Facebook and Twitter for more live updates as we continue to track the active weather in the live blog below.

And if you can get pictures and videos safely, you can send them to us at, by tagging #BeOn12 or by becoming a 12 News Weather Watcher.



9 p.m.

A severe storm near Surprise is capable of producing 60 mph winds. It's moving southwest toward the White Tanks, but it is unlikely that Downtown Phoenix and the East Valley will be impacted.

7:30 p.m.

Strong storms over southern Gila and eastern Pinal Counties moved westward, pushing strong winds over northern Pinal County, according to the NWS.

4:30 p.m.

Storm activity has been limited to northern Arizona so far, the NWS said. Forecasters expect Yavapai and Gila Counties and southeastern Arizona to get more active later on.