Squalls with wind gusts up to 50 knots, frequent lightning, waterspout activity, hail up to 2 centimetres and poor to very poor visibility in thunderstorms heavy at times are expected or occurring in the area.
Thunderstorms are tracking east at 35 knots and are expected to track over much of the northern and central part of Lake Huron.
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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.