本帖最后由 qfweiwei 于 2014-3-1 22:08 编辑 : Y7 t. u! q* D6 t$ t- H
$ `, B+ m; f+ ]/ K: _0 @
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.( c4 G& K% C" p) H5 c4 b8 P
At these extreme wind chill values frostbite on exposed skin may occur in less than 10 minutes.; }. m2 F% f2 Q( l/ X- C# B& H