Environment Canada meteorologists tracked several thunderstorms Wednesday night that were capable of producing strong wind gusts, toonie-size hail and heavy rain in southern Alberta.
Severe thunderstorm warnings were issued in areas north of Calgary, but ended around 8:30 p.m. MT.
"Take cover immediately if threatening weather approaches," said the national weather agency on its website.
"Remember, severe thunderstorms can produce tornadoes."
To report severe weather to Environment Canada call 1-800-239-0484, send an email to firstname.lastname@example.org or tweet reports to #ABStorm.
CBC Calgary weather specialist Vickie Chase says southern Alberta will see weather that is "cool and a little unsettled" over the next few days.