本帖最后由 qfweiwei 于 2014-3-1 22:08 编辑 4 Q5 B* ^ m) Z" Z3 ~- ?1 F6 ~' e
/ m. F! y, Z0 u7 d, b# |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.& \9 n' a# k1 A$ I I; v; `4 A, n
At these extreme wind chill values frostbite on exposed skin may occur in less than 10 minutes.6 L& q8 e. ]+ T) v5 v* E; C