本帖最后由 qfweiwei 于 2014-3-1 22:08 编辑 8 U6 \: X9 g4 p, g; s% m& c! ?% u3 @+ N; j% T6 z$ `
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. X" q% t. [ L8 U4 v
At these extreme wind chill values frostbite on exposed skin may occur in less than 10 minutes. ' M/ R) U; j# \