Yellow Watch - Severe Thunderstorm

Conditions are favourable for the development of severe thunderstorms that may be capable of producing strong wind gusts, large hail and heavy rain.

What: Wind gusts up to 110 km/h. Quarter to ping pong ball sized hail. Rainfall amounts 25 to 40 mm.

When: Beginning near noon into this afternoon.

Additional Comments: A cold front over Michigan is expected to bring a line of thunderstorms as it moves southeast over the area today. The strongest thunderstorms are expected early this afternoon.

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Driving conditions may be difficult. Local utility outages are possible. Damage to roofs, fences, branches or soft shelters is possible.

Heavy rain can cause flash flooding and significant reductions to visibility. Severe thunderstorm watches are issued when conditions are favourable for the development of thunderstorms capable of producing damaging hail, wind or rain.

Please continue to monitor alerts and forecasts issued by Environment Canada. To report severe weather, send an email to ONstorm@ec.gc.ca or post reports on X using #ONStorm.

For more information: https://www.ontario.ca/page/be-prepared-emergency.