本帖最后由 qfweiwei 于 2014-3-1 22:08 编辑 / ^) E2 i5 m* O- W4 a$ t/ D, m( s: z0 Y
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. 3 A. d3 [) O% pAt these extreme wind chill values frostbite on exposed skin may occur in less than 10 minutes. 2 _: E8 H/ l1 ]9 p