本帖最后由 qfweiwei 于 2014-3-1 22:08 编辑 . ?- \. F( J- h4 F; }9 e, Z
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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.% u2 W# w; F* g0 g, a
At these extreme wind chill values frostbite on exposed skin may occur in less than 10 minutes. 6 C' ~2 ?: w. S; T5 O