Tuesday, April 13, 2010

Prairie spring storm

While sunny and seasonable weather is expected here in Ontario and Quebec, a big wet and windy storm over the central Rockies is forecast to move north into western Saskatchewan tonight and Wednesday. The track of the storm will split the province in two with mild air, strong south winds and even thunderstorms from Regina and Gravelbourg east and heavy snow and blizzard conditions in the southwest part of the province and along the Alberta border into the extreme eastern portion of that province. Heavy snow will develop tonight especially in the Cypress Hills and Shaunavon region. Look for 20-30cm of wet snow with increasing northerly winds to 70km/h. Rain and thunderstorms this morning will change to heavy wet snow on increasing north winds this afternoon in the southwest portion of Saskatchewan. Blizzard conditions are forecast along the Trans Canada Highway from east of Red Deer to west of Swift Current. Travel will likely become impossible overnight. East of that area heavy rain, up to 25mm will drench the southern grain belt into northern Montana and the Dakotas. All regions will see strong winds of 50 to 100km/h from this storm.

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