The National Weather Service Milwaukee/Sullivan Weather Forecast Office has issued a Winter Weather Advisory for Walworth County [Monday 3 a.m. to 3 p.m.] and Jefferson County [Monday 3 a.m. to 6 p.m.] Whitewater straddles the two counties. NWS indicates “Slick spots will develop on untreated roads, with bridges and overpasses most susceptible to icy conditions.”