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People who live north of Calgary were warned about a “dangerous and potentially life-threatening situation” as Environment Canada issued a tornado warning for parts of Mountain View County and Rocky View County on Wednesday night.

At 7:28 p.m., the weather agency said its meteorologists were tracking “a severe thunderstorm that may produce a tornado in the next 30 minutes.”

Just moments after the warning was issued, it was downgraded to a tornado watch. The tornado watch was dropped shortly before 9 p.m.

People near Carstairs, Stirlingville, Cremona, Water Valley and Airdrie were asked to “take cover immediately.” Anyone who saw a funnel cloud or flying debris or hears a roaring sound was asked to take shelter immediately.

“Go indoors to a room on the lowest floor, away from outside walls and windows, such as a basement, bathroom, stairwell or interior closet,” Environment Canada said. “Leave mobile homes, vehicles, tents, trailers and other temporary or free-standing shelter, and move to a strong building if you can. As a last resort, lie in a low spot and protect your head from flying debris.”

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Environment Canada issues tornado warnings when “imminent or occurring thunderstorms are likely to produce or are producing tornadoes.”

READ MORE: Tornado confirmed northwest of Calgary airport Monday

Meanwhile, several other parts of Alberta were under a severe thunderstorm warning or watch Wednesday evening. Those advisories had been dropped by Thursday morning.

Tornado watch now expired but still strong storms moving across AB. @GlobalEdmonton pic.twitter.com/Ba4euKunTv — Tina Simpkin (@tsimpkin) July 13, 2017

For a full list of areas currently under a weather warning or watch, click here.

To report severe weather, send an email to ec.storm.ec@canada.ca or tweet reports using #ABStorm.

Want your weather on the go? Download the Global News Skytracker weather appfor Android and IOS.

Watch below: Videos from Global News’ coverage of a tornado near Three Hills, Alta. on June 2, 2017.

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