The tornado outbreak of April 9–11, 2009 was a tornado outbreak that affected large portions of the Southern United States on April 9–11, 2009. At least 5 people were killed by tornadoes including three in Mena, Arkansas and two in Murfreesboro, Tennessee just south of Nashville. A total of 85 tornadoes were confirmed over the two days. Three people were killed in Texas due to wildfires caused by strong winds stemming from the same storm system. This event is sometimes referred to as the Good Friday tornado outbreak of 2009.

A storm system over the southern Great Plains region resulted in severe weather development during the late afternoon and evening along a dry line that stretched from southern Kansas across northeastern Oklahoma into southwestern Missouri and northwest Arkansas.^[2] As a result, a moderate risk of severe weather was issued by the Storm Prediction Center for eastern Oklahoma, southeast Kansas, southwest Missouri and western Arkansas.^[3] The system approached as the atmosphere destabilized as a result of daytime heating. Thunderstorms began developmenting along a dry line in Oklahoma between 2 and 3 pm CDT (1900 and 2000 UTC). More thunderstorms started forming as they approached into western Arkansas, and encountered a strong wind field around the incoming system. Winds began turning with height, which caused some thunderstorms to rotate and spawn tornadoes.^[4] Beginning at 6:20 CDT (2320 UTC), several tornadoes were produced in eastern sections of Oklahoma and Texas.^[5][6] The severe weather then moved into Arkansas, where a tornado killed three people in Mena.^[7] The thunderstorms that affected Texas then went into Louisiana, creating numerous tornadoes in the state, one of which tracked through downtown Shreveport.^[6]

On April 10 (Good Friday), the storm system moved east into the Tennessee Valley and eventually into the Carolinas during the night. Ahead of the storm, warm and moist air quickly moved northeast into Alabama, Georgia, eastern sections of Tennessee and parts of the Carolinas. A separate band of strong jet stream winds went east across Mississippi and Alabama. The strengthening winds and increased moisture helped create conditions favorable for the development of supercells that could produce strong tornadoes.^[8] The Storm Prediction Center issued a moderate risk of severe weather for sections of the Tennessee Valley, Gulf Coast states and into the southern Appalachians region.^[9] As the system moved across the lower Ohio Valley area around the noon hour, a line of thunderstorms started to produce tornadoes in parts of Kentucky and Tennessee.^[10] One of the tornadoes that struck Tennessee early that afternoon killed two people in Murfreesboro.^[11] Portions of the moderate risk area in northeastern Alabama, northwestern Georgia and southeastern Tennessee were upgraded to a high risk at 1:44 pm CDT (1844 UTC).^[12]

The thunderstorms moved southeast across much of South Carolina, Georgia and Alabama later that afternoon and into the evening.^[13] They produced tornadoes in northeastern sections of Alabama, damaging homes in Langston and Powell.^[14] Further south, tornadoes damaged areas in central Alabama, one of which tracked through three counties and into the Montgomery metropolitan area.^[15] One area of thunderstorms that evening produced a long-tracked tornado that moved from Grovetown, Georgia, through Augusta and ended in Ellenton, South Carolina.^[16] The tornado moved across Augusta but missed the Augusta National Golf Club where the Masters Tournament was taking place during the weekend.^[17] The storm system reached the Atlantic Coast during the early morning hours of April 11, producing one tornado in North Carolina.^[18]

During the passage of the dry line and cold front, very strong winds in central Oklahoma and northern Texas occurred behind the severe weather. Wind gusts exceeded 60 miles per hour (97 km/h)^[38] while dew points were in the 20s °F (below -2 °C) behind the dry line with temperatures reaching into the 80s °F (upper 20s °C).^[39] The combination of hot and very dry air and very strong winds sparked numerous wildfires during the late afternoon hours.^[40] In Oklahoma, 62 people were injured by the wildfires.^[41] One hundred structures were destroyed in Oklahoma County, of which 12 homes in Midwest City and 58 homes in Choctaw were destroyed.^[42] In Texas, three people were killed in Montague County, as wildfires burned more than 150,000 acres (610 km²) and destroyed two towns in the county.^[43] Officials later confirmed that one of the wildfires in Midwest City was set deliberately.^[44] In South Carolina, one man was killed in a car accident after crashing into trees that had fallen into the roadway as severe weather created poor visibility.^[45]

The Governor of Arkansas Mike Beebe declared five counties in Arkansas disaster areas after the damage caused by the severe weather.^[46] Fifty soldiers from the National Guard helped with removing debris and providing security while 60 prisoners also helped with debris removal.^[47] The local Walmart was being used as a supply center as it was the only building with power. All Red Cross supplies were sent to the store and arrived on April 10.^[48] Two people from the Red Cross assisted victims of the tornado by providing tarps donated by a Lowe's store as well as flashlights and other supplies. Twelve others were sent to conduct damage assessments in Mena. A Southern Baptist Disaster Relief group cooked meals that would be served by the Salvation Army at three different locations. A mobile feeding operation provided meals for residents in De Queen, where a trailer park was destroyed by the inclement weather.^[49] On April 14, A group of 19 student-athletes and coaches from the University of Central Arkansas helped unload equipment that was moved from Mena Middle School to a middle school in Hatfield.^[50] As many as 300 seventh and eighth-graders were sent to the middle school in Hatfield, while 165 sixth-graders went to a Baptist church to complete the school year.^[26]

The Governor of Tennessee Phil Bredesen,^[51] United States Senators Bob Corker and Lamar Alexander,^[52] United States Representative Bart Gordon^[53] and the mayors of Murfreesboro and Rutherford County each toured the tornado damage in Murfreesboro.^[52] Sixteen Nashville-area Lowe's stores served as donation sites for the Red Cross to assist people who have been affected by the tornado.^[54] Michael Waltrip Racing and Best Western aided victims by donating $7,500 and hotel rooms for those who were left homeless.^[55] Country singer Chris Young performed at Middle Tennessee State University for a tornado relief benefit.^[56] The Red Cross helped residents in Murfreesboro by serving nearly 15,000 meals and snacks, distributing nearly 4,000 cleanup and comfort kits, and provided counseling to more than 500 tornado victims and their families.^[57] The United Way set up the "United Way of Rutherford & Cannon Counties Long Term Recovery Fund" at a bank to accept donations for tornado victims.^[58] In South Carolina, Governor Mark Sanford made a visit to Aiken County to assess tornado damage.^[59] The Red Cross provided services and disaster relief to those affected in Aiken County such as tarps, food and beverages. A middle school was used as an emergency shelter, and The Salvation Army, Aiken County Emergency Management, Aiken County Sheriff's Office and Department of Social Services helped with the cleanup and removal of debris.^[60] In response to the wildfires, the Governor of Oklahoma Brad Henry declared a state of emergency for 31 counties.^[61]

• Tornadoes of 2009
• Lists of United States tornadoes in 2009
• List of North American tornadoes and tornado outbreaks