本帖最后由 qfweiwei 于 2014-3-1 22:08 编辑 9 L" K* c6 p9 P$ I
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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. & E A5 O" i k; O# uAt these extreme wind chill values frostbite on exposed skin may occur in less than 10 minutes. ( g% ^* F$ F% U7 R- m