A Dust Storm Warning has been issued for the Phoenix metro area and northwest Pinal County, CBS 5 meteorologists said.
The warning is in effect until 11 p.m.
Besides Phoenix, the warning includes the cities of Buckeye, Mesa, Apache Junction, Casa Grande and Florence.
Forecasters said visibilities could drop to around a quarter of a mile.
Stay with cbs5az.com and CBS 5 News for updates on this developing story.
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