本帖最后由 qfweiwei 于 2014-3-1 22:08 编辑 ) Z0 x) ?- V* A q4 N# t2 n6 c1 `7 o; `
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. + ]( s. E ], x) q2 qAt these extreme wind chill values frostbite on exposed skin may occur in less than 10 minutes. 7 {& X9 G0 k; W$ \4 g