请密切关注天气情况,做足保暖措施,防止冻伤。6 j. ~) \/ N d- w
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./ g, \5 w& C) @5 q
. D% z5 |8 K2 S% {- ^9 dAt these extreme wind chill values frostbite on exposed skin may occur in less than 10 minutes.