2011 Joplin tornado
The 2011 Joplin tornado was a catastrophic EF5-rated multiple-vortex tornado that struck Joplin, Missouri, late in the afternoon of Sunday, May 22, 2011. It was part of a larger late-May tornado outbreak and reached a maximum width of nearly during its path through the southern part of the city. This particular tornado was unusual in that it intensified in strength and grew larger in size at a very fast rate. The tornado tracked eastward across the city, and then continued eastward across Interstate 44 into rural portions of Jasper County and Newton County. It was the third tornado to strike Joplin since May 1971.
1955 Great Plains tornado outbreak
The 1955 Great Plains tornado outbreak was a deadly tornado outbreak that struck the southern and central U.S Great Plains States on May 25–26, 1955. It produced at least 46 tornadoes across seven states including two F5 tornadoes in Blackwell, Oklahoma, and Udall, Kansas that caused most of the casualties. The outbreak killed 102 from three tornadoes while injuring hundreds more. Unusual electromagnetic activity was observed, including St. Elmo's fire.The Blackwell tornado formed in Noble County at around 9:00 PM CDT before crossing through the eastern portions of the Kay County town of Blackwell as an F5 wedge tornado. Then about wide (Grazulis 1991), It claimed the lives of 20 people in Blackwell and injured over 200 before crossing into and dissipating over Cowley County, Kansas. Along with destroying nearly 200 homes, the tornado also demolished the town's main employers including the Acme Foundry and the Hazel Atlas Glass plant. 400 homes were destroyed or swept away, and 500 other homes were damaged. 60 businesses were also destroyed and the local hospital also sustained major damage. Most of the western half of the town was spared the worst of the damage.