A freezing rain warning that was in effect for Edmonton and surrounding areas ended on Thursday afternoon.
Ice caused problems on area roads and created delays at Edmonton International Airport — about 35 by the middle of the day.
Airport officials warned that more delays were likely throughout the day.
"Freezing rain is the worst condition for an airport or for anybody in transportation," said Steve Maybe, director of operations and maintenance at Edmonton International Airport. "We'd rather see snow."
The Alberta Motor Association received about four times the regular number of calls from motorists looking to get pulled out of a ditch or deep snow.
As of 3 p.m., Edmonton police responded to 77 crashes with four involving injuries.