本帖最后由 qfweiwei 于 2014-3-1 22:08 编辑 8 D$ v2 |8 D8 s; c6 z 4 V8 E' U# G- Z* i0 ? ~5 M7 t& {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.$ M1 K2 m. a# D; p& W% G
At these extreme wind chill values frostbite on exposed skin may occur in less than 10 minutes.7 `1 q/ E0 H' Y% A2 u