Deep freeze grips Mississauga, with wind chills near -35 forecast

Bitter arctic air has stayed over Mississauga all week, and forecasters say there is no quick end in sight.

Environment and Climate Change Canada issued extreme cold warnings for much of southern Ontario, including the GTA, on Friday, Jan. 23. Wind chill values of -30 to -33 were expected, with gusts up to 50 km/h west and south of the GTA into Saturday.

The cold then set in behind Sunday's record snowstorm, which dropped about 45 centimetres on the city. With a cold warning in effect for the region, Environment Canada forecast a high of -8 C for the GTA on Tuesday, Jan. 27, with a wind chill of -26 in the morning and local blowing snow, as crews kept clearing roads, sidewalks and windrows.

More cold ahead

Environment Canada said Wednesday that extremely cold conditions are likely across southern Ontario overnight Thursday into Friday morning, with wind chills of -30 to -35. Wind chills near -30 may return on Friday night and again on Saturday night.

The weather agency warned of a "high risk of frostbite and hypothermia if outside for long periods without adequate protection."

What the city is advising

Canadian winters can shift rapidly, and extreme cold may arrive with little warning.

— City of Mississauga

The city is urging residents to check the forecast every day and to pay attention to the wind chill, not just the temperature. It recommends dressing in three or more layers with a wind-resistant outer layer, covering exposed skin, and checking on children and older adults, who are more sensitive to the cold. Pets should be kept indoors as much as possible.

The city says it is working with Peel Region and community partners to connect unhoused residents with shelter and other services. Peel's Street Help Line runs 24 hours a day at 1-877-848-8481, and anyone who needs a place to stay can call 905-450-1996 for shelter access.

Anyone who has been out in the cold and shows signs of frostbite or hypothermia, such as numbness, white or waxy skin, confusion or slurred speech, should get medical help. In an emergency, call 911.