At 6:23 p.m. MDT, Environment Canada meteorologists are tracking an area of severe thunderstorms capable of producing strong wind gusts, loonie to ping pong ball size hail and heavy rain.
There is a thunderstorm northwest and southeast of Big Valley moving east at 40 km/h.
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Severe thunderstorm warnings are issued when imminent or occurring thunderstorms are expected to produce damaging hail, wind or rain.