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Calgary and region get first snowfall of season
CALGARY -- Monday's snowfall was a shock to the system for Calgarians, who were basking in balmy weather just hours earlier.

The temperature plummeted from a summery high of 25 C Sunday to the freezing point Monday, and several centimetres of snow accumulated in many parts of the city and surrounding areas.
This air mass will likely bring frost to northern US
Posted by: lord garth 2014-09-09
http://www.rantburg.com/poparticle.php?ID=399568