Cold snap expected to last a week or more in Calgary, temperatures forecast to fall to -30 C range

What's worse than an Arctic air mass bringing bitter cold to southern Alberta this weekend? The fact it’s going to stick around for the foreseeable future. CTV Calgary meteorologist Kevin Stanfield says current forecasting models don't extend far enough to show when we'll get a reprieve. "We're looking at a period, starting Saturday, where the temperature falls 10 degrees below normal, on the high side, then stays there for at least a week," said Stanfield. "Low temperatures will push into