Television footage also showed mangled awnings on some mobile homes in Florence along with some uprooted trees in the city south of Phoenix.
The rolling wall of dust appeared to start early Friday afternoon in southern Pinal County and moved northwest through Mesa, Chandler and Gilbert.
Officials at Phoenix-Mesa Gateway Airport halted some flights until wind gusts of up to 60 mph subsided.
It isn't immediately clear how many flights were affected. One flight reportedly was diverted to Phoenix Sky Harbor International Airport.
Gateway Airport officials say flight operations were back to normal by 2 p.m. Friday.