Weather tracker: Western Canada and parts of US brace for cold snap, Canada

Temperatures could be 10-15C below seasonal average in some areas, with Calgary and Edmonton experiencing low of -30C

US braces for dangerous blast of cold, wind and snow

Record cold in Western Canada triggers havoc across B.C., Alberta

Southern US cold snap could have iguanas falling from trees in Florida

Back-to-back storms to drop heavy snow, usher in coldest air of season for Canadian Rockies

Cold wave coming; Arctic air with strong wind gusts will produce bitter wind chills to start the weekend

Winter storm in US forecast to bring dangerous temperatures, weather

November 2014 North American cold wave - Wikipedia

Weather tracker: Western Canada and parts of US brace for cold snap, Canada

Polar Vortex Chill May Hinder Fieldwork Start