The EF1 in Tarrant County resulted in a fatality. The severe weather caused cancellation of qualifying for the 2007 Samsung 500 at Texas Motor Speedway, forcing the field to be established via owner's points. Nonetheless, the overall activity was much lower than expected and the high risk busted. For April 14, the Storm Prediction Center issued a moderate risk of severe weather for southern Louisiana, Mississippi, Alabama, Georgia and northwestern Florida. Several more scattered tornadoes were reported. While most of the activity on April 15 was straight-line winds, an isolated EF3 tornado touched down in Sumter County, South Carolina that morning. Several mobile homes were demolished and one person was killed, with three injured. Two other tornadoes were later confirmed in South Carolina : an EF1 in Lee County and an EF0 in Orangeburg County. Several tornadoes also affected Georgia where at least 8 tornadoes and three injuries were documented. On April 17, although the SPC issued a slight risk of storms, a storm system progressed through Texas. The system spawned 10 tornadoes through northern Texas, such as Anton, Lubbock and Haslet, which is only a few miles from where a number of tornadoes hit the Friday before, April 13, 2007. The system also created penny to ping-pong ball-sized hail and created dangerous wind speeds. Six tornadoes were confirmed, one EF1 and the others all EF0. A six-day outbreak of tornado activity struck the United States. Activity was not widespread on April 20, but eight tornadoes were reported in southwestern Nebraska, all from a single supercell that suddenly developed. Two have been confirmed as of April 23. A tornado near Moorefield, Nebraska has been rated EF3. It destroyed six farmsteads and had a path length of . Another EF2 tornado was confirmed in Dawson County, Nebraska, which was over wide at its peak but fortunately remained in sparsely populated areas. On April 20, the SPC issued a moderate risk of severe thunderstorms for the Texas and Oklahoma Panhandles and the southwestern part of Kansas for April 21 which was extended into Nebraska later. Widespread severe weather developed that evening, although the primary result of the supercells was large hail. The meteorological synopsis was virtually identical to March 28 except for the fact that the air mass was not as unstable. In total, 19 tornadoes were reported. The hardest hit community was Tulia, Texas where many houses were reported to have been destroyed. That tornado was rated as a high-end EF2.