Alva Review-Courier -

INDIANPOLIS, Ind. (AP) — After several quiet years, the United States was threatening to break a major record for tornado activity this week as a volatile mix of warm, moist air from the Southeast and persistent cold from the Rockies clashed and stalled over the Midwest.

On Monday, the U.S. tied its current record of 11 consecutive days with at least eight tornadoes on each of those days, said Patrick Marsh, warning coordination meteorologist for the federal Storm Prediction Center. The previous 11-day stretch of at least eight tornadoes per day ended on June 7, 1980.

"We're getting big counts...