At 11:46 p.m. EDT, Environment Canada meteorologists are tracking a severe thunderstorm capable of producing very strong wind gusts, up to nickel size hail and heavy rain. There is a risk of localized flash flooding.###Local utility outages are likely. Heavy rain may cause flash flooding and significant reductions to visibility. Large hail may cause significant damage and injury.Severe thunderstorm warnings are issued when imminent or occurring thunderstorms are expected to produce damaging hail, wind or rain.