本帖最后由 qfweiwei 于 2014-3-1 22:08 编辑 7 R5 m0 t! z, i6 l: O4 ]) B# j5 R0 M2 [7 _' N$ T
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 W$ g9 x' N. }- `At these extreme wind chill values frostbite on exposed skin may occur in less than 10 minutes. 1 m$ e' N+ I9 B4 |8 x