Squalls with wind gusts up to 50 knots, frequent lightning and hail of 2 to 4 centimetres are expected or occurring in the area.
A line of thunderstorms moving southeast at roughly 30 knots will cross Lake Erie. These thunderstorms have a history of producing hail as large as 4 cm.
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Large hail can damage vessels and cause injury.
Please continue to monitor alerts and forecasts issued by Environment Canada. For more information monitor Canadian Coast Guard radio or Weatheradio stations.