At 5:34 p.m. ADT, Environment Canada meteorologists are tracking a severe thunderstorm capable of producing strong wind gusts, up to quarter size hail and heavy rain.
An area of organized thunderstorms is affecting St. Stephen to near Brockway, and is moving to the southeast at 45 km/h.
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Heavy rain may cause flash flooding and significant reductions to visibility.
Severe thunderstorms can produce tornadoes. Severe thunderstorm warnings are issued when imminent or occurring thunderstorms are expected to produce damaging hail, wind or rain.