本帖最后由 qfweiwei 于 2014-3-1 22:08 编辑 " T% R- H8 i& x- O' Q8 `2 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. " Q% R% v; d& \( \At these extreme wind chill values frostbite on exposed skin may occur in less than 10 minutes. ( e: v/ T& x) p9 J1 g' ~