At 9:32 p.m. EDT, Environment Canada meteorologists are tracking a severe thunderstorm capable of producing very heavy rain.
This line of thunderstorms is located between Belleterre and Nipissing Lake and is heading east at 30 kilometres per hour.
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Heavy rain may cause flash flooding and significant reductions to visibility. Fast-moving and rapidly rising water can sweep vehicles away and damage infrastructure.
Severe thunderstorm warnings are issued when imminent or occurring thunderstorms are expected to produce damaging hail, wind or rain.