本帖最后由 qfweiwei 于 2014-3-1 22:08 编辑 - N0 N6 T5 i4 W+ u ) A: Y. ?* F" I: x4 S d/ `& zA 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.- P& a4 T% W6 G$ v8 j
At these extreme wind chill values frostbite on exposed skin may occur in less than 10 minutes. ! _0 n7 `0 i0 L3 {