% d e4 D) r5 p U" G9 e+ nA 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.* [! J7 i* i+ P- f3 x/ a
At these extreme wind chill values frostbite on exposed skin may occur in less than 10 minutes. . {7 t( [1 n# [: `3 m0 h& V