Bitter Cold Air is on the way... This may be the coldest air the season and it is going to come in with a fury this afternoon. Winds will gust up to 30 mph this afternoon. Highs will fall from the 30s into the teens by late afternoon. This dark red color represents -26 Celsius at 850 mb. This cold air is not the core of the coldest air but certainly not a glancing blow either. The other problem with this air is that it really will not be modified by the ground as it moves in across snow fields. It is going to be very breezy as well.

I know this surface analysis is a little messy but bare with me here. The isobars on the map are tightly packed with means some gusty winds on what we call a tight pressure gradient. That means the pressure is going to be changing. You will see barometric pressure of 30.30" and higher because cold air is very heavy.

It's here to stay: Bitter cold air will stick around.

Not only will the bitter cold air stick around it looks like another couple shots of snow as well. It's still cold with -16 Celsius temperatures at 850 mph by Saturday. It looks like cold air is not the only story. Another weather system will come in late Saturday and into Sunday.
You can see this system here as it will bring another chance of accumulating snow on Sunday.