本帖最后由 qfweiwei 于 2014-3-1 22:08 编辑 / `. |% N% \: x# s! L" Q1 l) l4 N/ |" v6 V8 r8 X
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.% ` y; S+ c# I7 g& E. j7 w
At these extreme wind chill values frostbite on exposed skin may occur in less than 10 minutes. . ?, d) l( V6 L