A possible tornado tore roofs from houses and blew down part of an elementary school in the Madison area early Tuesday, the National Weather Service said. No serious injuries were reported. Dane County Emergency Management officials received about 350 reports of storm damage after the storm packing dangerously high winds hit shortly after midnight. Some 15 homes in the city of Verona sustained severe damage. Emergency managers said the north side of Verona and the southwest side of Madison suffered the brunt of the damage.