本帖最后由 qfweiwei 于 2014-3-1 22:08 编辑 ( O8 o: i3 H9 g/ \2 _6 w1 {5 k, h+ U- m5 L% {
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. + E6 y" `- j& K1 `& L/ U# oAt these extreme wind chill values frostbite on exposed skin may occur in less than 10 minutes. # R# ^+ i% Q5 P j4 o* T1 x3 I- t