Environment Canada was tracking multiple severe thunderstorms in southern Alberta on Sunday evening. The agency said a strong thunderstorm was located 15 kilometres northwest of Black Diamond at 6:54 p.m., that was moving south at 30 km/h. Other strong thunderstorms were developing to the west, south and east of Calgary. There were also reports posted to social media of flash floods and hail in Calgary during late afternoon. #yyc #abstorm pic.twitter.com/BewsYxAC2N —@adolwynThe thunderstorms were expected to dissipate late Sunday evening.

Source: CBC News July 20, 2020 01:02 UTC