Active AlertsAilsa Craig, ON

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

What:
Up to toonie size hail.
Torrential downpours.
Frequent lightning.

When:
This evening and overnight.

Additional information:
Thunderstorms are expected to develop and track through the region tonight.

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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.

When thunder roars, go indoors! Lightning kills and injures Canadians every year. Don't drive through flooded roadways.

Emergency Management Ontario recommends that you take cover immediately if threatening weather approaches.