When winter rolls around the best website to me is the 511mn.org site.
511mn.org/#roadReports?timeFrame=TODAY&layers=allReports%2CroadReports%2CwinterDriving%2CvoxReports%2CweatherWarnings%2Cflooding%2CotherStates
Accidents are posted, color-coded road conditions, highway cameras can be located, any and all road related information posted in a Google Map style interface. You can literally watch as a snowstorm crosses the state.
I live in south-central MN using a 996xt in "ID search" mode, easily hearing MNDoT traffic issues from Laverne/ Worthington/ Windom area.