At 2:59 p.m. CDT, Environment Canada meteorologists are tracking a severe thunderstorm capable of producing very strong wind gusts, up to nickel size hail and heavy rain.###Heavy rain may cause flash flooding and significant reductions to visibility.Severe thunderstorm warnings are issued when imminent or occurring thunderstorms are expected to produce damaging hail, wind or rain.

Conditions are favourable for the development of squalls with wind gusts up to 35 knots, frequent lightning and hail.A cold front tracking through the area is expected to support severe thunderstorm development late this afternoon. They will track east into Ontario later this evening.###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.