An ice storm is in progress in the listening area. Surfaces are a glaze of ice and dangerously slippery. Do not go out if you do not have to! Driving is slow but keep in mind you will have to clear your windshields off first before you travel. Most schools have closed for the day and many other events have or will be cancelled. The warning lasts for Marshalltown until midnight tonight. Again even walking is treacherous on surfaces. Driving in town is slow and is very dangerous in the wide open spaces.