After several quiet years, tornadoes erupt in United States

Indianapolis • After several quiet years, tornadoes have erupted in the United States over the last two weeks as a volatile mix of warm, moist air from the Southeast and persistent cold from the Rockies clashed and stalled over the Midwest.On Tuesday, the U.S. set a new record of 12 consecutive days with at least eight tornadoes, based on preliminary data from the National Weather Service. The previous record for consecutive days with that many tornadoes was an 11-day stretch that ended on