本帖最后由 qfweiwei 于 2014-3-1 22:08 编辑 ) a8 s9 }. k& W( x6 ?1 W: W9 v6 }; ^# P
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. 3 O' _# v. U: ^8 T' B# E( LAt these extreme wind chill values frostbite on exposed skin may occur in less than 10 minutes.4 H8 c$ o! i L( R7 b