F+ N6 P' ?/ Y. ^2 G8 uA 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.8 M- ~; @) C. e- O
At these extreme wind chill values frostbite on exposed skin may occur in less than 10 minutes. ; h8 r" x) L2 k8 S; b8 m7 b$ x6 x8 ?0 f