Funnel cloud advisory lifted for Edmonton region on tornado anniversary

Click to play video: 'July 31 marks 29th Anniversary of the Black Friday Tornado'
July 31 marks 29th Anniversary of the Black Friday Tornado
WATCH: July 31 marks the 29th anniversary of the Black Friday Tornado which killed 27 people and injured over 300 – Jul 31, 2016

Environment Canada issued a weather advisory for Edmonton, St. Albert and Sherwood Park Sunday morning describing the conditions being “favourable for the development of funnel clouds today.”

The advisory was issued at 10:30 a.m. and goes on to say the funnel clouds “are not likely to reach the ground but they can produce dangerous conditions if they do.”

The advisory states an unstable airmass Sunday may lead to the development of thunderstorms and some funnel clouds over central Alberta this afternoon.

READ MORE: What to do when severe summer weather hits

“These types of funnel clouds are generated by weak rotation under rapidly growing clouds or weak thunderstorms. This weak rotation is normally not a danger near the ground. However, there is a chance that this rotation could intensify and become a weak landspout tornado.”

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Environment Canada is warning residents to treat funnel cloud sightings seriously.

“Should a funnel cloud develop nearby, prepare to take shelter. These funnel clouds usually appear with little or no warning.”

The advisory comes on the 29th anniversary of the Black Friday Tornado.

The F4 tornado cut a 40-kilometre swath of devastation through east Edmonton and parts of Strathcona County.

It remained on the ground for an hour, at times it was one kilometre wide.

27 people were killed and more than 300 injured.

READ MORE: Alberta hit with 4 tornados in 4 days

July has been a particularly stormy month in across Alberta.

The advisory was ended at 3:26 p.m. Sunday.

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