An EF1 tornado strikes the Orleans residential community of Ottawa, Canada, creating a track of damage but without serious injuries.
Sources: Ottawa Citizen
Sources: Ottawa Citizen
One person is killed and ten others injured after a tornado hits Zierikzee, Netherlands.
Three tornadoes, two at least EF 3 in strength, rip through downtown Nashville and surrounding towns, killing 25 people.
Robert Bentley, the Governor of Alabama, declares a state of emergency due to forecasts of storms with the threat of tornadoes during the day. The neighboring state of Georgia also faces the threat of severe weather.
Takes place in Ottawa, Canada, as US President Barack Obama and Mexican President Enrique Peña Nieto meet with Canadian Prime Minister Justin Trudeau. President Obama later gives a special address to the Parliament of Canada.
At least two people are killed after a tornado touches down in Quapaw, Oklahoma, United States.
Tornados hit the midwestern and southern United States two days after the 2012 Leap Day tornado outbreak.
A tornado hits the town of Goderich in the Canadian province of Ontario causing significant damage and one death.
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")]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
Tornadoes kill several people in the US states of North Carolina and South Carolina with storms killing at least 20 people in the southern United States over the past few days.
A tornado hits in Iowa's Monona County in the midwestern United States.