本帖最后由 qfweiwei 于 2014-3-1 22:08 编辑 j& ]) I& P2 b # I) w) \$ Y& L/ ]* x7 A5 `( HA 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., f6 l+ _0 r$ ~
At these extreme wind chill values frostbite on exposed skin may occur in less than 10 minutes. / |' r( P& T# Y