The National Weather Service has issued a dust-storm warning for Pinal County.

At 4:10 p.m., a wall of dust was reported along a line extending from Chandler to near Olberg to near Toltec, moving southwest at 20 mph. A spotter reported near zero visibility southeast of Chandler.

The result is less than a quarter mile visibility with strong wind in excess of 50 mph. This could be life-threatening for motorists.

Locations impacted include Chandler, Gilbert, Tempe, Casa Grande, Sun Lakes, Maricopa, Queen Creek, Arizona City, La Palma, San Tan Village Mall, Seville, Freestone Park, South Mountain Park, Bapchule and Estrella Sailport.

Dust storms lead to dangerous driving conditions with visibility reduced to near zero. If driving, avoid dust storms if possible. If caught in one, pull off the road, turn off your lights and keep your foot off the brake.

Motorists should not drive into a dust storm.

Strong to severe thunderstorms are also possible behind this wall of dust. Keep updated with this quickly evolving situation.