请密切关注天气情况,做足保暖措施,防止冻伤。 0 t) v% Y( T# \9 \1 eA 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./ ~/ f+ m# A, J2 H( z
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At these extreme wind chill values frostbite on exposed skin may occur in less than 10 minutes.