请密切关注天气情况,做足保暖措施,防止冻伤。) @8 }6 }% s. b2 S# w7 x
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. - L; F- w7 I/ q7 d$ T" w9 h3 K+ O 0 G9 c# E- }1 z! e# bAt these extreme wind chill values frostbite on exposed skin may occur in less than 10 minutes.