Freezing rain warnings have been extended into Calgary and area.  Environment Canada says it should end by Thursday evening, but not before drifting off into Southeastern Alberta.  The warning affects Okotoks, High River, Claresholm, Airdrie, Cochrane, Olds, Sundre, Drumheller, Three Hills, Brooks, Strathmore, Vulcan, Lethbridge, Milk River and Taber.  The warning has been in effect for a while now in the Red Deer, Ponoka, Innisfail and Stettler areas.