今晚和明晨要出门的朋友请注意Wind chill warning in effect.

qfweiwei

请密切关注天气情况，做足保暖措施，防止冻伤。
4 H7 n2 w, S" S$ t6 r) m  VA 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.
+ y. F# c  T* k' J0 X& Z* z
+ K0 L) @: x, k2 XAt these extreme wind chill values frostbite on exposed skin may occur in less than 10 minutes.

DELTA