Toronto and much of southern Ontario are facing a prolonged period of extreme cold, with wind chills expected to plummet to -30 and even -35 overnight. Environment Canada has issued a yellow cold warning, urging residents to take precautions against the dangerous conditions.

Understanding the Current Cold Snap

The current cold snap is characterized by highly cold wind chills expected tonight into Sunday morning, with similar conditions anticipated Sunday night into Monday. These conditions pose a risk to everyone, but particularly to vulnerable populations.

Today’s forecast predicts mainly sunny skies with strong northwest winds. While the high is expected to reach -13°C, wind chills will make it perceive closer to -22°C this afternoon, increasing the risk of frostbite. Tonight, the low is forecast at -22°C, with wind chill values near -30°C.

Who is Most at Risk?

Environment Canada emphasizes that extreme cold poses a risk to everyone. However, certain groups are particularly vulnerable. These include young children, older adults, individuals with chronic illnesses, those experiencing homelessness, and people who function or exercise outdoors.

Outdoor workers are advised to take regular breaks to warm up. Anyone experiencing symptoms of frostbite – such as numbness, pain, or colour change in fingers and toes – should immediately move indoors and begin warming the affected areas.

Pro Tip: Dress in layers! This allows you to adjust your clothing to maintain a comfortable body temperature and avoid overheating or becoming chilled. The outer layer should be wind-resistant.

The Increasing Frequency of Extreme Cold Events

While cold winters are typical in Toronto, climatologists note that the current cold snap is unusual. Recent data suggests a pattern of prolonged cold conditions, raising concerns about potential long-term trends. The frequency of these events is something experts are monitoring closely.

The risks associated with extreme cold are not limited to physical health. Prolonged periods of cold weather can likewise strain infrastructure, leading to issues like frozen pipes and increased energy demand.

Protecting Yourself from the Cold

Protecting exposed skin is crucial. Frostbite can develop within minutes when wind chill values are low. Cover all exposed skin with hats, scarves, gloves, and warm layers of clothing. Pay attention to warning signs like shortness of breath, chest pain, muscle pain, and weakness.

Check on vulnerable family members, friends, and neighbours. Ensure they have adequate heating and are aware of the risks associated with the cold.

Staying Informed

Residents are encouraged to continue monitoring weather alerts and forecasts issued by Environment Canada. To report severe weather, you can email [email protected] or use the hashtag #ONStorm on X.

FAQ: Staying Safe in Extreme Cold

  • How quickly can frostbite occur? Frostbite can develop within minutes on exposed skin, especially with wind chill.
  • What should I do if I suspect frostbite? Move indoors immediately and begin warming the affected area.
  • Who is most vulnerable to the cold? Young children, older adults, people with chronic illnesses, and those without proper shelter are at higher risk.
  • Where can I locate the latest weather updates? Check the Environment Canada website: https://weather.gc.ca/en/location/index.html?coords=43.655,-79.383