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Severe Thunderstorms Sweep Southern Ontario, Disrupting Events and Power

Tuesday evening storms brought high winds, hail, and power outages across the region, with clearing expected overnight.

(Representational Image) Southern Ontario braces for summer-like temperatures and severe thunderstorms as a Colorado low moves in, with risks of hail, strong winds, and isolated tornadoes.
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Thurderstorms are in the forecast for Ontario on Tuesday afternoon.

Overview

  • Southern Ontario experienced unseasonal heat on Tuesday, with temperatures reaching the high 20s and feeling like summer.
  • Severe thunderstorms developed as a cold front clashed with the warm, humid air mass, prompting Environment Canada to upgrade watches to warnings by the evening.
  • The storms caused significant disruptions, including delaying the Toronto Maple Leafs' playoff tailgate and widespread power outages affecting over 80,000 customers.
  • Hailstones up to 4 cm, wind gusts exceeding 100 km/h, and heavy downpours were reported, with a small but present risk of tornadoes in some areas.
  • Conditions are expected to stabilize overnight, with cooler temperatures and calmer weather forecast for Wednesday.