Monday Dec 6th
Well, it was bound to happen at some point right? An area of high pressure, currently over Alaska, will move across the Prairie Provinces today into Monday and bring with it Arctic air. This will bring temperatures down in the -20's C.
With the wind gusting around 20-40 km/h, wind chill values in the -30's are expected for Monday morning.
Below is a model trend for the RDPS (Canadian model) showing wind chill.
We recommend you plug in your vehicle before going to bed tonight!
Tuesday Dec 7th
The Arctic airmass will stay in place throughout most of the week, with lows in the mid -20's C and wind chills approaching -40.
Wednesday Dec 8th
Wednesday will perhaps be the coldest day of the week with wind chills approaching -40 in the morning hours. However, some model discrepencies exist at this time.
An Alberta Clipper coming in sometime Wednesday evening into Thursday morning should provide a relief from the extreme cold temperatures.