本帖最后由 qfweiwei 于 2014-3-1 22:08 编辑 # x+ @6 y1 P8 l3 h/ c' [, A2 G! D: T. @0 f5 f* v7 p, I
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. ' m7 \: f! d* vAt these extreme wind chill values frostbite on exposed skin may occur in less than 10 minutes.* O" H& ^7 q5 R, y; K( h