Heat Dome Threatens Southern Ontario | Winnipeg News

Winnipieg News Today | 2 Min News | The Daily News Now! · Jun 29, 2026 · 1m

Southern Ontario is facing a dangerous, prolonged heat wave fueled by a heat dome trapping scorching air and humidity, with deadly conditions expected — especially for the vulnerable. Temperatures will stay dangerously high even at night, and Environment Canada has issued yellow alerts. This isn’t a brief warm spell — it’s the first major heat wave of the summer, and climate change is making these events more intense and frequent, with Canada warming twice as fast as the global average. Similar extreme heat is gripping Europe, signaling a hotter, more volatile future for all. Support the…