Squalls with wind gusts up to 45 knots, frequent lightning, hail of 1 to 2 centimetres and poor to very poor visibility in thunderstorms heavy at times are expected or occurring in the area.
Thunderstorms with squalls over southern Georgian Bay will continue southeastward early this morning.
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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.