Heavy rain and strong winds are likely in Sarnia-Lambton, starting Friday evening.
Environment Canada has issued a special weather statement for the region.
Rain is forecast to start Friday evening over southwestern Ontario and spread over the remainder of southern Ontario Friday night. Showers, at times heavy, will continue Saturday before temperatures rapidly fall and light snow develops Saturday night, in the wake of a strong cold front.
The national weather agency said rainfall amounts of 25 to 45 millimetres will be possible by Saturday night.
Very strong southwesterly winds, gusting up to 70 kilometres per hour, are expected to develop Saturday afternoon. By the evening, winds will shift to the northwest with gusts of up to 90 km/h possible, particularly along the shores of Lake Huron and Georgian Bay.
Some damage to trees and local power outages will be possible due to these strong winds.
