本帖最后由 qfweiwei 于 2014-3-1 22:08 编辑 : `- _( |: \$ ~" X' o9 S
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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. $ o# T$ F6 Y9 m" T$ e" |# }At these extreme wind chill values frostbite on exposed skin may occur in less than 10 minutes. ( I1 t$ P2 s' M5 V