本帖最后由 qfweiwei 于 2014-3-1 22:08 编辑 # H( i6 }4 U) C* r
5 F7 }3 q: ~. I, D( w" f
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. 7 l9 b, ]$ v7 v2 z5 J9 {+ e$ }; WAt these extreme wind chill values frostbite on exposed skin may occur in less than 10 minutes. 5 D& L8 w& J) w: ^6 ?