本帖最后由 qfweiwei 于 2014-3-1 22:08 编辑 - s7 b- H; R4 E6 B, n* V/ V& I/ _. ?/ f( M1 F; k _
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., C: v" y) ?, H
At these extreme wind chill values frostbite on exposed skin may occur in less than 10 minutes. 6 Y2 @/ x2 b% b$ Y2 ]# e6 Z