Severe thunderstorm warnings issued for southern Alberta
Environment Canada issued a severe thunderstorm warning for the City of Calgary, Airdrie - Cochrane - Olds - Sundre, Kananaskis - Canmore, Okotoks - High River - Claresholm and Crowsnest Pass - Pincher Creek - Waterton Lakes Nat. Park as of 9:39 p.m. MT.
Severe thunderstorm watches were in place for Hinton - Grande Cache and north to Nordegg - Forestry Trunk Road Highway 734.
Thunderstorm warnings are issued when severe weather is imminent and capable of producing nickel-size hail and heavy rain that can be dangerous to people and property.
The warning issued at 10:34 p.m. MT called it a "cluster of thunderstorms" extending from Cochrane to Pekisko and is moving slowly to the northeast.
"Heavy downpours can cause flash floods and water pooling on roads. Large hail can damage property and cause injury. Lightning kills and injures Canadians every year. Remember, when thunder roars, go indoors!" the warning said.
Watches mean current weather conditions are favourable for potential strong gusts of wind, hail and heavy rain but no storms are currently imminent.
Environment Canada also issued a heat warning for Hanna - Coronation - Oyen.
As of Tuesday morning, four air quality warnings were still in effect in the following parts of northern Alberta because of wildfires:
Residents can continue to monitor storm developments by following the #ABstorm hashtag on Twitter or by checking Environment Canada's Alberta weather alerts page.
