KITCHENER -- The ‘significant’ snowfall anticipated for southern Ontario has covered the Waterloo-Wellington area in the white stuff.

Environment Canada issued a snowfall warning for Waterloo Region and Wellington County and says about 15 cm of snow was expected by late Saturday afternoon.

They say winds gusting up to 50 km/h will blow around fresh snow and create low visibility.

The snow will taper off into a few showers or wet flurries into the evening as the temperature edges above the zero degree mark, the agency adds.

Environment Canada warns that visibility will be reduced while travelling through snow and that anyone clearing snow should take frequent breaks to avoid strain.

Waterloo Regional Police investigated more than 30 collisions by midafternoon and more than 80 per cent involved just a single vehicle.

"Make sure you got snow tires on and take it easy when thigs are slippery," said John White, a tow truck operator for K-W Towing.

By noon, White was on his way to his ninth call. K-W Towing had responded to about two dozen calls at the time.

Police warn there is punishment for drivers who don't move over for tow truck drivers and emergency vehicles.

"You could be subject to a $490 fine with three demerit points," said SGT. Mark Hammer of WRPS.

He adds that any collision with over $2,000 in damage should be reported within 48 hours.

"This is to ensure a proper investigation is done and get all the reports forwarded that you're going to need for your insurance," said Hammer.

Drivers who don't properly clear off their vehicles before driving can also face a fine of $110.

The cities of Kitchener, Cambridge, Waterloo, and Guelph all declared snow events and issued overnight parking bans.