Supercell Thunderstorm Hits Toronto with 100+ km/h Winds

A dangerous supercell thunderstorm swept across southern and eastern Ontario, including Toronto, on Tuesday, April 29, bringing intense winds, power outages, and hail the size of ping-pong balls.

High Winds and Hail Threaten the GTA

The storm developed as warm, humid air clashed with a cold front, creating the perfect conditions for severe thunderstorm activity. According to Environment Canada, the storm brought wind gusts exceeding 100 km/h, prompting warnings of property damage and flying debris.

Large hailstones and hazardous crosswinds made driving risky, particularly for high-profile vehicles. Residents across the Greater Toronto Area were warned to secure loose objects and remain indoors when possible.

Power Outages and Emergency Calls

As the storm tore through the region, thousands lost power. Toronto Hydro reported widespread outages and downed wires, with some homes not expected to regain power until Wednesday morning.

In one serious incident, a woman was critically injured when a tree branch fell on her near St. Clair Avenue and Avenue Road, with early reports linking the injury to wind-related storm damage.

Disrupted Events and Ongoing Risks

The storm disrupted public events, including Game 5 of the Stanley Cup playoffs. Scotiabank Arena initially cleared the outdoor tailgate area due to the storm but later reopened it once the rain eased.

While the thunderstorm warning has ended, a special weather statement remains in effect, with gusts up to 80 km/h expected into the evening. Authorities warn of additional utility outages and urge motorists to use caution, especially on open highways.

What You Can Do to Stay Safe

Experts suggest the following steps when severe storms are forecast:

• Secure outdoor items like patio furniture and trash bins.
• Charge your phone and power banks in case of outages.
• Stay alert by monitoring weather apps or alerts from Environment Canada.
• Avoid travel if strong winds or hail are present in your area.
  

When Will the Storm End?

Meteorologists say the worst of the storm should move into New York State after 9 p.m. Tuesday. A significant temperature drop is expected — from 25°C Tuesday afternoon to just 2°C by Wednesday morning.

Light rain may return Thursday and Friday, but the weekend looks more promising. Sunday is forecast to be mainly sunny, offering a break from the stormy weather.

Have you ever experienced a thunderstorm like this one in Toronto? What steps did you take to stay safe?

More…

• https://www.thestar.com/news/gta/supercell-thunderstorm-to-hit-toronto-tuesday-with-high-winds-heres-what-to-expect-and-when/article_c35064c2-5b7c-4cee-9fcf-63472e9e63df.html
• https://www.cp24.com/news/2025/04/30/more-utility-outages-may-occur-thousands-in-toronto-without-power-due-to-high-winds
• https://ca.news.yahoo.com/photos-first-taste-summer-heat-002632360.html