Freezing rain occurs when snow falls through an above freezing layer of air to melt and then a subfreezing layer to become supercooled. However, a similar temperature profile could also produce sleet or other forms of precipitation. It only takes a small change to this profile to change what precipitation you get. It is difficult to make predictions with such a small margin for error.
Ice storms happen anywhere there is ice.
There are all of these. Check the local weather forecast.
fire storms and chocolate rain!
snow/ice
Local NWS Weather Forecast Offices
rare
yes
All can.
brain drain
Local NWS Weather Forecast Offices
In Winter.
The state of Wisconsin has dreary weather but no storms are forecast for the Milwaukee area tonight.