Gravenhurst, Ontario, Canada Severe Weather Alertstar_ratehome

Conditions are favourable for the development of squalls with wind gusts up to 35 knots and frequent lightning.

Thunderstorms have developed to the west of Lake Simcoe. Some of these thunderstorms may track over Lake Simcoe with strong wind gusts.

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Please continue to monitor alerts and forecasts issued by Environment Canada. For more information monitor Canadian Coast Guard radio or Weatheradio stations.