It's another morning in the Stateline with subzero overnight lows and chills near -15°, but the cold will now make way for some accumulating snow overnight into Wednesday morning.
The arctic high pressure responsible for the bitter cold is now shifting east ahead of a low pressure system. The low pressure will track south of Illinois from Nebraska into the mid-south before it strengthens moving along the east coast. To the north of us another high pressure system is present that is advecting drier air into the Midwest. The dry air will battle against the low pressure system and will limit our snow accumulations.
Winter Weather Advisories are in place for southern Iowa, south central Illinois, Missouri, Indiana, Kentucky, and Tennessee. Closest to the low 3-5" is possible and 2-4" for central Illinois. For northern Illinois and southern Wisconsin the accumulations will be minimal, with about a dusting to about a half of an inch expected.
The rest of the week stays fairly quiet, as temperatures finally warm above freezing by Sunday.