TORONTO, Ont. – A two-day snow storm has arrived in southern Ontario and will bring up to 15 centimetres of the white stuff.

The roads are still wet and slushy across the GTA, but the snow plows are out in full force so the drive home should be a bit smoother.

Toronto received three centimetres of snow overnight Thursday into Friday, but 13 centimetres of snow fell in Brockville.

Toronto could get up to another five centimetres Friday, but strong winds meant blowing and drifting snow.

At last official count, six centimetres of snow fell at Pearson International Airport.

The Ontario Provincial Police recorded hundreds of weather-related crashes from Niagara to Barrie. The CAA said the wait time for roadside assistance is about an hour.

Thousands of homes in Kingston and Perth were without power due to heavy snow and freezing rain.

Forty-four flights have been cancelled or delayed at Pearson, particularly to the north-eastern U.S.

OPP Const. Peter Leon urged drivers to make sure they are prepared for what lies ahead, and that includes waking up early to clear off vehicles.

He added people should have “full tanks of gas, [their] windshield washer fluid reservoir [...] topped up. That’s important should [motorists] get stranded somewhere at least [they'll] have enough power and gas to keep [them] warm.”

Leon also said people must watch their distance and speed because every time snow falls hundreds of crashes are reported.

Another five centimetres could fall on Saturday and into Sunday before the storm moves out.

However, no amount of snow that falls in Ontario will compare to our neighbours to the U.S.

According to David Phillips, with Environment Canada, the storm will deliver another dumping to many eastern U.S. states.

“They’ve just been buried in one system after another and we’ve got off pretty well scott free.”