At 5:32 a.m. EDT, a line of severe thunderstorms is located from Brechin to Bayshore Village then to Churchill. These severe thunderstorms are moving east at 50 km/h. Strong wind gusts, up to quarter size hail and heavy rain are possible.
Locations and nearby areas that could be impacted include: Newmarket, Richmond Hill, Lindsay, Markham, Pickering, Ajax, Whitby, Oshawa
Heavy rain with low visibilities and giving 30 to 50 millimetres in less than an hour are the main hazards this morning.
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Heavy rain may cause flash flooding and significant reductions to visibility. Large hail may cause significant damage and injury.