本帖最后由 qfweiwei 于 2014-3-1 22:08 编辑 8 o3 S7 ~' p, f0 {) W" ?: v5 ^- o) ?! C
A very cold Arctic airmass and winds of 15 to 20 km/h will generate wind chill values below minus 40 across much of Alberta tonight. Conditions will improve somewhat by Sunday afternoon as temperatures rise. 1 n7 g0 _' X; y) F# EAt these extreme wind chill values frostbite on exposed skin may occur in less than 10 minutes.* s! u/ E/ r$ ]% v& K