本帖最后由 qfweiwei 于 2014-3-1 22:08 编辑 3 V( C& B) [% i5 \8 d( e: g( ]
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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. 5 w3 ~" y% k) l) h; ~At these extreme wind chill values frostbite on exposed skin may occur in less than 10 minutes. 1 O: Q0 E4 N1 n, `" W7 P7 @5 ^! p4 B \