本帖最后由 qfweiwei 于 2014-3-1 22:08 编辑 / z" g4 ^! D# n* h/ d% x( F- \% c, c8 Y. P b( H, S+ j! X
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. ; W# c9 L6 N oAt these extreme wind chill values frostbite on exposed skin may occur in less than 10 minutes.) u+ t& M+ [# l! v0 |! a" j( u