A low pressure system is centered over southwest Kansas this morning which is expected to inch its way northeast through the day today. This will bring precipitation to the area starting as rain across southern Iowa by around early this afternoon. Warmer temperatures aloft will create a risk for freezing rain/sleet mix generally along and north of highway 30 across northern Iowa. As we work into the evening cold air should become evident and all precipitation will switch over to heavy snow. Keep in mind this will be a heavy wet snow with temperatures in the upper 20s to low 30s.
A stripe of snow should setup along and north of Des Moines and then bending like an ark back into northeast Iowa where 2-6″ of snowfall accumulation is expected.
Ice accumulations will be generally a glaze in most areas to locally near 0.10″ near the Waterloo area