Heavy rainfall and rock, snow or ice avalanches can raise water levels in moraine-dammed glacial lakes, generating waves that overtop the moraine dam or cause it to collapse, releasing huge amounts of water.
Thunderstorm risk on the Prairies, some alpine regions see snow
Digital Writers
Sunday, June 6th 2021, 9:40 pm - A widespread thunderstorm risk will impact both Alberta and Saskatchewan on Monday.
Alberta is headed for a weather tailspin with a dramatic drop in temperatures, heavy rain, and even some high-elevation snow along the foothills. Winter storm watches and rainfall warnings are in place for the regions that will be impacted by the system. Severe thunderstorms could occur in parts of Alberta and central Saskatchewan. Details and timing, below.
Visit our Complete Guide to Summer 2021 for an in-depth look at the Summer Forecast, tips to plan for it and much more!
As Ontario begins to sizzle from a prolonged period of heat and humidity, the risk for thunderstorms is also on the rise in parts of the province including a tornado threat for parts of eastern areas Saturday.