本帖最后由 qfweiwei 于 2014-3-1 22:08 编辑 " w$ \" C7 e8 ]# [8 e
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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.! W8 e. q, l/ n; w
At these extreme wind chill values frostbite on exposed skin may occur in less than 10 minutes.+ e" \' R. [( [0 j1 h4 L