2003: The week of May 4th through the 10th, 2003, was the most active week of tornadoes in U.S. history. Tornadoes occurred from Oklahoma to Tennessee, and as far north as northern Illinois. The outbreak first occurred across the Kansas City area from late afternoon into the evening of the 4th. Several thunderstorms became tornadic with a total of five distinct tornado touchdowns in the Kansas City metropolitan area. Two of the tornadoes received a rating of F4, two a rating of F2, and the last was rated was rated F1.

2007: The first official EF5 tornado destroys a town in Kansas. A tornado devastated the town of Greensburg Kansas and the surrounding countryside. It was the strongest recorded tornado since the May 3rd 1999, Moore, Oklahoma twister.

1812: A winter storm produced snow from Philadelphia to Maine. Keene, NH reported a foot of snow, while parts of Massachusetts reported 9 inches.

1917: A late season snowstorm produced up to 8 inches of snow in parts of Texas.

2007: Greensburg, KS was completely destroyed by a 1.7 mile wide EF-5 tornado. Though 11 people did lose their lives, the death toll could have been much larger given the total destruction of the town.