本帖最后由 qfweiwei 于 2014-3-1 22:08 编辑 $ V3 a# R4 A* n1 _ ' u1 t# s! A% i" ^) vA 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.4 A& \5 ~+ t5 R8 d# a j
At these extreme wind chill values frostbite on exposed skin may occur in less than 10 minutes.; \3 T; @7 b( `