WINONA Minn. – A storm system from the southwest is forecast to collide with the arctic air mass that has settled into the region. Expect dangerously freezing temperatures and dreadful chill factors on Thursday. Freezing rain and snow will follow with temperatures below zero and chill factors in the minus-20s. It’ll worsen Friday and Saturday. Meteorologists explained that a complicated layer of warm air one to two miles high will thaw precipitation its way down. Before reaching ground, much of the precipitation will have frozen but not all – a mix of snow, ice and rain. Expect a cold and slick Saturday.
