Light to moderate snow will begin across northern Iowa midday Friday, and will continue through the afternoon. A narrow band of very light snow will lift northeast through northern Iowa by Thursday afternoon into evening. This band will exit the state before sunrise Friday, and may produce light snowfall accumulations, less than an inch.
There will be a break in the action Friday morning, before the main wave arrives by midday Friday. Snow will increase in intensity by Friday afternoon, and will continue through the evening. The greatest chance for snowfall should will stay along and north of highway 20. This is where 3 to 5 inches will be possibly by Saturday.
From I-80 north to highway 20, 1 to 3 inches will be possible, with lower end of the range near I-80 and the higher end of the range near highway 20.
There will be the potential for some freezing rain, and some minor ice accumulations will be possible. The greatest chance for this will be south of I-80, and along highway 34. Any ice accumulations will be light, but just enough to make for slick surfaces.
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