High Quality Content by WIKIPEDIA articles! The Late-March 2007 Tornado Outbreak was a tornado outbreak that took place across the central United States. It developed in the High Plains from South Dakota to central Texas on March 28, 2007, which produced most of the tornadoes. Several more tornadoes were reported the next three days before the system weakened on March 31. It affected western Nebraska, western Kansas, extreme eastern Colorado, and much of Oklahoma, and Texas. It was the second major outbreak of 2007, four weeks after an outbreak farther east. The outbreak produced at least 81 tornadoes, and at least five deaths and extensive damage was reported. In addition to the tornadoes, widespread hail as large as softballs and destructive straight-line winds as strong as 90 mph were reported.The activity level was very uncertain for March 29, as it was conditional on the dry line refiring. Despite the squall line remaining intact, several more tornadoes developed. Several more tornadoes developed on March 30 and 31 before the system weakened.