本帖最后由 qfweiwei 于 2014-3-1 22:08 编辑 2 w. h0 F" S/ W3 r( ]% d 2 z6 i: i$ V5 i8 X ]4 [; H/ QA 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., X9 l: ]+ i6 a
At these extreme wind chill values frostbite on exposed skin may occur in less than 10 minutes.+ O' [( f6 }* F$ _0 p6 i) _$ C1 G8 F