The National Weather Service has issued a Winter Weather Advisory for the Counties highlight in purple in the map above.
Impacts - Slick travel and accumulating snow. Accumulation 1-2 inches with isolated higher amounts possible. Ice accumulation will be a light glazing. Anything wet will freeze tonight. Temperatures will drop into the teens with wind chills possibly dipping below zero. Best chance for wintery impacts will be in the advisory area and along and South of the Ohio River. Use caution if you must travel.
From the National Weather Service:
"URGENT - WINTER WEATHER MESSAGE National Weather Service Paducah KY 220 PM CST Wed Jan 19 2022 .An arctic cold front will move across the region on Wednesday, causing rain to change to snow Wednesday afternoon and evening. ILZ086-087-089>091-093-094-INZ085>088-KYZ002>022-201200- /O.CON.KPAH.WW.Y.0006.220119T2200Z-220120T1200Z/ Saline-Gallatin-Johnson-Pope-Hardin-Pulaski-Massac-Posey- Vanderburgh-Warrick-Spencer-Hickman-Carlisle-Ballard-McCracken- Graves-Livingston-Marshall-Calloway-Crittenden-Lyon-Trigg- Caldwell-Union KY-Webster-Hopkins-Christian-Henderson-Daviess- McLean-Muhlenberg-Todd- Including the cities of Harrisburg, Shawneetown, Vienna, Golconda, Elizabethtown, Mound City, Metropolis, Poseyville, Evansville, Boonville, Rockport, Clinton, Bardwell, Wickliffe, Paducah, Mayfield, Smithland, Benton, Murray, Marion, Eddyville, Cadiz, Princeton, Morganfield, Dixon, Madisonville, Hopkinsville, Henderson, Owensboro, Calhoun, Greenville, and Elkton 220 PM CST Wed Jan 19 2022 ...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 6 AM CST THURSDAY... * WHAT...Mixed precipitation expected. Total snow accumulations of one inch with localized higher amounts and ice accumulations of a light glaze. * WHERE...Portions of southwest Indiana, western Kentucky and southern Illinois. * WHEN...From 4 PM Wednesday to 6 AM CST Thursday. * IMPACTS...Plan on slippery road conditions. The hazardous conditions could impact the evening commute, especially along the Ohio River. The transition from rain to a wintry mix and snow may not occur closer to the Tennessee border areas until this evening. * ADDITIONAL DETAILS...The combination of gusty winds, falling temperatures and wind chills, and falling snow will cause hazardous travel. Freezing of residual moisture on roads from rain earlier Wednesday could also cause icing of roads and walkways. Black ice issues could linger through the early morning hours. PRECAUTIONARY/PREPAREDNESS ACTIONS... Slow down and use caution while traveling."