Brrr!!! The coldest air in over two years. We’ll drop below zero for the first time since January 17, 2009. That is a record 732 days above zero. On top of the cold, the wind will be blustery out of the northwest at 15-25 miles per hour. That will bring wind chills to -30 at times. Here are the expected lows:
Because of the cold temperatures and strong winds, a wind chill advisory is in effect.
When does the cold become dangerous? That is a very subjective question. You should not be outside for more than five minutes unless you have numerous layers of clothing on and are covering all your extremities. Don’t forget about your pets. Make sure they do not stay outside for long in this weather.
So you think it is cold here, get a look at the lows from the RPM model for Friday morning.
Click on the above image to enlarge. The lows in northern Wisconsin may drop to 30 below in a few spots. Northeastern Minnesota will see some lows to -40. That is the actual temperature, not the wind chill. Yikes.
Thankfully, this arctic air does not last too long. By Sunday, temperatures will be back into the low 20s. The Soldier Field forecast is looking pretty good right now. Temperatures will be in the low to mid 20s with easterly winds at 5 to 15 miles per hour. The only fly in the ointment is the wind direction. A lake-effect snow band will likely develop on Saturday night and may impact the game , but it is too early to tell where this band will end up. The RPM model has the band north into Wisconsin on Sunday at noon.
The GFS model keeps the lake-effect around Green Bay.
The NAM model is the outlier, it brings the warmer air back earlier which would allow a low pressure center to bring snow to Chicago and Milwaukee on Sunday. At this point, I don’t believe this solution. When you get arctic air like we are right now, it is hard to move that out. The cold air should actually work to steer the low pressure to our south. Nonetheless, here is the NAM.
We will wait and see, but at this point I am more confident in a more southerly solution for the snow on Sunday. Go Pack Go!