Squall Watch In Effect

Conditions are favourable for the development of squalls with wind gusts up to 45 knots, frequent lightning, hail and poor to very poor visibility in thunderstorms heavy at times.

Thunderstorms are expected to develop over southern Ontario and track east through the afternoon and evening.

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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.