We have a very cold start to the morning in KELOLAND with lows in the teens and 20s below zero. There are also areas of light snow in central SD, but this trend will diminish through the morning as the temperature slowly warms. Highs on Thursday will only rebound to -2 in Sioux Falls and -4 in Aberdeen. Pierre will be a little warmer at 8 and Rapid City will be in the lower 30s.
A warmer trend is likely Thursday night, but developing south winds will create areas of blowing snow. That could be a problem in SW MN and parts of NE SD where more snow is on the ground and wind speeds will go over 30 mph. Stay tuned for more updates on that. We also have a chance of light mixed precipitation in the afternoon and evening as a cold front sweeps through KELOLAND. It appears the weather ahead of the front will be very mild; near 48 in Rapid City and around 40 in Pierre. Amounts of moisture appear to be light.
Northwest winds will create additional areas of blowing snow on Saturday and colder weather. Sharply colder weather will be likely by Sunday as stronger northwest winds continue.
This air is the coldest of the season so far and will compare to a cold air outbreak from January of 1997. We are currently forecasting wind chills of -40 to -55 Sunday evening into Monday across much of eastern KELOLAND. Highs will range from -10 to -12 on Monday in Sioux Falls and Aberdeen. Again, that’s impressive and downright dangerous. We’ll monitor the latest trends as we get closer to the event.
We’ll start to pull out of the deep freeze on Tuesday, and we’ll see a much better forecast by Wednesday. Stay warm!