本帖最后由 qfweiwei 于 2014-3-1 22:08 编辑 8 d6 X- E) ^* d4 }0 r6 E* I . Z# O# `' J- J" w6 ~9 wA 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., ^ v+ L6 S6 ^& `
At these extreme wind chill values frostbite on exposed skin may occur in less than 10 minutes. 5 o" {! A& b4 `% L3 `* P: R/ C