A local scientist says all the deadly tornadoes lately could be the result of a weather pattern known as La Nina.
ECU Climatologist Scott Curtis says La Nina, a cooling of the Pacific water temperatures, leads to changes in the atmosphere.
Curtis says the mix of cold and warm air masses can cause severe weather to form causing these tornado super cells to touch down and he says La Nina is helping to fuel that.
Usually tornadoes are more common during the month of March in the south, but this is by far the deadliest April in our state and in the U.S. Professor Curtis says the month of May typically slows down as we get into June and then hurricane season.