本帖最后由 qfweiwei 于 2014-3-1 22:08 编辑 8 U6 l: {- |. }1 |8 r, H3 b! C2 e2 z! b! G/ G8 V4 l8 Z2 g6 n
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.- Z, j3 F/ w8 j
At these extreme wind chill values frostbite on exposed skin may occur in less than 10 minutes.# ^' ~4 W. j9 ?* L