Snow plows were out on Monday morning to help clear streets as a snowstorm blanketed southern Ontario.

The City of Guelph reminded drivers to give snow plows space.

"Never pass a snow plow and don't follow too closely," a tweet from the city said.

Guelph has an interactive map for residents who want to track plows in real time.

This map from the City of Kitchener shows priority roads for plows during snowfalls.

The City of Waterloo's website says snow plows in that city will take around six to 24 hours to finish clearing roads after snow stops falling.

Waterloo regional police said, as of 4 p.m., there had been 41 collisions reported due to the snowstorm.

Parking bans are in effect on residential roads.

Environment Canada issued a winter storm warning for Waterloo Wellington. It ended around 4:15 p.m.

Officials with CAA South Central Ontario said they're "experiencing very high call volumes with approximately 500 calls per hour." They warned of increased wait times and are asking members who are home safely right now to wait to call them after the storm passes.

"Our focus is to respond to high priority calls first including those stranded on roads and highways or safety related," an email from CAA SCO said. "For that reason, at home service is not available. Our aim is to get everyone home safe and sound today."

Members can also find service elsewhere and submit for reimbursement.