Storms and tornadoes
The National Weather Service continues issuing tornado warnings for parts of the Central United States, including Arkansas, Oklahoma and Missouri.
A tornado outbreak hits Arkansas, Missouri, Tennessee and Kentucky, United States. Around 50 people are feared dead.
A severe storm system brings tornado watches and warnings throughout the U.S. states of Oklahoma, Texas, Arkansas, and Missouri. A "large and dangerous" tornado is confirmed near Gore, Oklahoma. Several other tornadoes are seen by storm chasers.
At least 7 people are killed in the US states of Missouri, Arkansas and Texas due to tornadoes and floods.
Voters in the U.S. states of Alabama, Alaska, Arkansas, Colorado, Georgia, Massachusetts, Minnesota, Oklahoma, Tennessee, Texas, Vermont, Virginia, and the overseas territory of American Samoa go to the polls to vote on Super Tuesday.
Powerful storms and tornadoes continue across the Central United States, claiming at least 10 more lives across Arkansas, Kansas and Oklahoma.
The death toll from the Joplin, Missouri, tornado reaches 116, becoming the deadliest single US tornado since 1947.
The city of Joplin, Missouri, is hit by a tornado, causing "major damage" in the downtown area and at least 30 fatalities.
Seven US states declare a state of emergency following heavy storms including Alabama, Arkansas, Kentucky, Mississippi, Missouri, Tennessee and Oklahoma.
Two tornadoes hit Tuscaloosa County in the US state of Alabama causing extensive damage, with the main strongest wedge tornado crossing over the state of Alabama and affecting the Gadsden Metropolitan Area. [http:--blog.al.com-spotnews-2011-04-ema_reports_people_trapped_in.html ("Birmingham News")]Extreme storms in Alabama cause the temporary closure of three Tennessee Valley Authority nuclear reactors and knocking out eleven high-voltage power lines. [https:--www.reuters.com-article-2011-04-27-us-utilities-tva-storms-idUSTRE73Q98920110427?feedType=RSS&feedName=domesticNews&dlvrit=60573 (Reuters)]The Downtown Tuscaloosa tornado passes over the University of Alabama campus close to the Bryant-Denny Stadium.[http:--www.timesdaily.com-article-20110427-NEWS-110429812?Title=Witness-South-part-of-Phil-Campbell-is-just-gone-12-confirmed-dead-or-missing (Times Daily)] [http:--www.thestate.com-2011-04-27-1795745-forecasters-say-severe-storms.html (The State)]date=August 2019 [https:--web.archive.org-web-20110502070856-http:--www.waff.com-story-14527806-very-large-tornado-on-ground-in-tuscaloosa ("WAFF")]At least 54 people have died in the storms of Tuesday and Wednesday with 40 people dead in Alabama, five in Mississippi and one in Arkansas. [http:--blog.al.com-montgomery-2011-04-ema_6_confirmed_dead_as_a_resu.html ("Montgomery News")] [https:--www.bbc.co.uk-news-world-us-canada-13217726 (BBC)] [https:--news.yahoo.com-s-nm-20110428-ts_nm-us_weather (Reuters via Yahoo News)] [http:--news.blogs.cnn.com-2011-04-27-possible-tornado-touches-down-in-alabama-damage-reported- (CNN)] [http:--www.google.com-hostednews-afp-article-ALeqM5hYcw3VQ5dUuvh8lKilJoaAfDd4ww?docId=CNG.fb6d5467c8dc5b3160c4939c2d753569.171 (AFP via Google News)] [http:--www.myfoxmemphis.com-dpp-news-local-storms-kill-54-around-south,-including-40-in-ala.-apx-20110427 (Fox News)]Storms cause numerous power outages in Alabama; more than 176,000 in Birmingham, Alabama are left without electricity. [http:--www.cbs42.com-content-localnews-story-Power-Outages-xwFqXDr5iUyhU8vxIlRJoA.cspx (CBS42)]At least 9 people are killed in Mississippi by the outbreak. [http:--www.clarionledger.com-article-20110427-NEWS-110427004-Deadly-tornado-outbreak-devastates-Mississippi?odyssey=tab%7Cmostpopular%7Ctext%7CFRONTPAGE ("Clarion Ledger")]date=May 2020 Tornado watches affect areas from Northern Georgia to Upstate New York. [http:--www.wggb.com-Global-story.asp?S=14527002 (ABC 40)]date=August 2019 [http:--www2.wspa.com-news-2011-apr-27-24-flooding-danger-through-wednesday-western-nc-upsta-ar-1764938- ("News Channel 7")]date=August 2019 A local National Weather Service building is evacuated as a tornado passes over its radar site and it temporarily switches operations to Mobile in the same state of Alabama.Reports of gas leaks from Birmingham, Alabama. [http:--blog.al.com-spotnews-2011-04-major_gas_leaks_reported_throu.html ("Al.com")]Tornado watches affect areas from Northern Georgia to Upstate New York. [http:--www.wggb.com-Global-story.asp?S=14527002 (ABC 40)]date=August 2019 [http:--www2.wspa.com-news-2011-apr-27-24-flooding-danger-through-wednesday-western-nc-upsta-ar-1764938- ("News Channel 7")]date=August 2019
Two people in Oklahoma and seven in Arkansas are killed by a strong tornado outbreak.