Conditions are favourable for the development of squalls with wind gusts up to 50 knots and hail.
Additional thunderstorms over Michigan are expected to move into the area tonight. The intensity of these storms once they arrive remains uncertain.
Large hail is also possible.
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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.