A massive dust storm was racing toward Chicago and the rest of northern Illinois, putting motorists and people with respiratory illnesses at risk, weather officials warned Friday evening.

Dust storm warnings spread across Illinois Friday evening, including much of the Chicago area. These advisories are issued when convectively driven dust is reducing visibilities to 1 mile or less, but greater than a quarter mile,

A dust storm hit Normal, Illinois, causing the NWS to issue a warning for McLean County. Powerful winds reached 60 mph, leading to near zero visibility.