Persistent rain will continue to fall over the southern Alberta/B.C. border on Thursday, with the bulk of precipitation expected on the eastern slopes. Daytime highs will sit well below seasonal across the region, and non-severe thunderstorms could develop. There is a chance of funnel cloud formation in southern Alberta on Thursday – but these should remain harmless. Early Thursday, Environment and Climate Change Canada (ECCC) issued a yellow-level rainfall warning for the foothills, extending from the southern border to areas west of Cremona. The national weather agency said heavy rain is expected to continue throughout the day with some areas likely to record an additional 30 to 40 millimetres. “Water will likely pool on roads and in low-lying areas. Some travel delays are possible. Fast-moving and rapidly rising water can sweep vehicles away and damage infrastructure,” ECCC said. In Calgary, another seven to 10 mm is expected on Thursday, with a chance of light rain on Friday. Rain will fall over southeastern British Columbia on Thursday and should reach the B.C. interior on the weekend. Lightning is possible over the next couple of days, and stronger winds could impact fire behavior and fire fighting efforts – especially in the central interior and the Cariboo regions. Temperatures will gradually increase in Calgary and return to normal by Sunday. Overnight lows are expected to hover around 8 C to 10 C for the next few nights.
