Yellow Warning - Severe Thunderstorm

At 3:32 p.m. EDT, Environment Canada meteorologists are tracking a severe thunderstorm capable of producing very heavy rain.

Thunderstorm Location: Grassie to St. Catharines

Motion: Moving very slowly

Hazards: Rain: very heavy (50 - 125 mm)

Locations in the Path: Beamsville Vineland St. Catharines Thorold Niagara Falls

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Heavy rain may cause flash flooding and significant reductions to visibility.