Frigit eruption starts heavy snow showers in Ontario, risk of 30+ cm

Tuesday’s daytime high of -13°C will be Toronto’s coldest daytime high since January 2019. However, it has been much colder. Flashback to January 15, 1994, when the temperature peaked at just -21°C at Pearson International Airport.

People across southern Ontario will contend with high daytime temperatures in the minus-teens through Monday, with even colder wind chill values ​​making for an uncomfortably — and dangerously — cold day across the region.

“Extreme cold puts everyone at risk,” ECCC says. Watch for cold-related symptoms: shortness of breath, chest pain, muscle pain and weakness, numbness and discoloration of fingers and toes. Dress warmly. Dress in layers that you can remove if you get too hot. The outermost layer must be wind resistant.”

Snow flurry watches and warnings for multi-day lake effect snow events

The Great Lakes remain largely unfrozen heading into this latest cold snap. Currently, Lake Huron is at 4°C, Lake Erie is at 3°C ​​and Lake Ontario is hovering at 1°C.

Frigid winds blowing across the still unfrozen lakes will kick start a renewed round of lake effect snow over the next few days.

Areas off Lake Huron to Georgian Bay will experience meandering snow showers Monday through Wednesday, with a warning in place highlighting the potential for up to 12 inches of snow.