||A powerful winter storm raked south-central and southeast Wisconsin during the afternoon hours of January 29th into the pre-dawn hours of January 30th. The precipitation started off as rain and thunderstorms then changed to sleet and freezing rain which then changed to snow and blowing snow with plunging temperatures. Peak sustained northwest winds were on the order of 22 to 28 knots (25 to 32 mph) with peak gusts of 34 to 43 knots (39 to 49 mph). Visibilities were occasionally reduced to 1/4 to 1/2 mile in open areas. Dozens of vehicle accidents and slide-offs were noted by the media due to very slippery roads. Afternoon temperatures in the mid 30s to lower 40s quickly dropped through the 20s into the teens and then into the single digits by the evening hours, and eventually down to the -4F to -11F by the pre-dawn hours of the 30th. Although new snow amounts were only 1 to 3 inches, County Emergency Management Directors noted that this event was perceived as a winter storm due to the combination of thunderstorms, freezing rain, sleet, snow, blowing snow, strong winds, poor visibilities, and fast-falling temperatures. Synoptically, a strong low pressure moved northeast through Minnesota while a strong cold front swept southeast through Wisconsin. Another low pressure developed along the cold front while it was over northern Illinois, which led to a tightening pressure gradient and stronger winds over southern Wisconsin.