Suspected tornados touched down in Florida's Panhandle and Mississippi on Monday, destroying more than a dozen homes, damaging a school while it was in session and briefly trapping an elderly woman and possibly other residents in rubble. The tornadoes were part of a large winter storm system that was clobbering the eastern U.S. with snow, sleet, strong winds and rain, and which came on the heels of record-breaking low temperatures. Officials in Florida and Mississippi were investigating reports of at least three possible tornadoes.