本帖最后由 qfweiwei 于 2014-3-1 22:08 编辑 - B! |$ Q4 t+ D% y
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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./ M; @; F: ]; n! ]% B9 ^) g
At these extreme wind chill values frostbite on exposed skin may occur in less than 10 minutes.: [* T+ K9 e! s5 _