TORONTO, Ont. – Environment Canada is warning of snow squalls in several regions in southern Ontario.
A warning is in effect for several areas, including Milton, Caledon, Vaughan, Richmond Hill and Markham.
The agency is warning motorists of near-zero visibility due to blowing snow and bursts of heavy snow Thursday night into Friday.
An arctic cold front arrived in southern Ontario and snow squalls have developed in the westerly flow off of Lake Huron and Georgian Bay, the agency said.
According to the agency, snowfall could approach 15 to 20 centimetres in areas where squalls are constant.
The agency downgraded its snow squall warning for Toronto and parts of the Greater Toronto Area to a watch Thursday night.
Toronto and the GTA can expect heavy flurries that could form snow squalls overnight, the agency said.