% f, C' ]% i9 \; h/ {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.5 ?& d5 |! s( X4 e2 K
At these extreme wind chill values frostbite on exposed skin may occur in less than 10 minutes.6 l, N: E4 j& D- A2 u! s( _