Tornado outbreak sequence of April 19–24, 2011 (English Wikipedia)

Analysis of information sources in references of the Wikipedia article "Tornado outbreak sequence of April 19–24, 2011" in English language version.

refsWebsite

Global rank English rank

144noaa.gov

212^th place

172^nd place

2iastate.edu

2,548^th place

1,587^th place

1weather.gov

1,128^th place

711^th place

1archive.today

14^th place

1web.archive.org

1^st place

1news9.com

low place

7,251^st place

1washingtonpost.com

34^th place

27^th place

archive.today

https://archive.today/20121205032027/http://www.weather.gov/view/validProds.php?prod=PNS&node=KPAH NWS Paducah (KY) Office Report

iastate.edu

mesonet.agron.iastate.edu

"Damage Surveys Confirm Two Additional Tornadoes". Iowa Environmental Mesonet. National Weather Service in Northern Indiana. April 21, 2011. Retrieved May 22, 2022.
"NWS Storm Damage Survey Confirms Two Tornadoes in Woodford County Kentucky From Friday Evening...April 22". Iowa Environmental Mesonet. National Weather Service in Louisville, Kentucky. April 25, 2011. Retrieved April 21, 2022.

news9.com

Unattributed (April 23, 2011). "Tornadoes Confirmed In Oklahoma, Arkansas". News 9. Archived from the original on May 13, 2011. Retrieved April 24, 2011.

noaa.gov

ncdc.noaa.gov

"Search Results for all U.S. States and Areas: Event Types: Thunderstorm Wind". Storm Events Database. National Centers for Environmental Information. Retrieved 20 April 2021.
"Search Results for all U.S. States and Areas: Event Types: Tornado". Storm Events Database. National Centers for Environmental Information. Retrieved 20 April 2021.
"Search Results for all U.S. States and Areas: Event Types: Thunderstorm Wind". Storm Events Database. National Centers for Environmental Information. Retrieved 20 April 2021.
"Illinois Event Report: EF3 Tornado". National Centers for Environmental Information. National Weather Service Weather Forecast Office in St. Louis, Missouri. 2019. Retrieved April 20, 2021.
"Search Results for all U.S. States and Areas: Event Types: Tornado". Storm Events Database. National Centers for Environmental Information. Retrieved 20 April 2021.
"Kentucky Event Report: EF2 Tornado". National Centers for Environmental Information. National Weather Service Weather Forecast Office in Paducah, Kentucky. 2019. Retrieved April 20, 2021.
"Kentucky Event Report: EF2 Tornado". National Centers for Environmental Information. National Weather Service Weather Forecast Office in Paducah, Kentucky. 2019. Retrieved April 20, 2021.
"Kentucky Event Report: EF0 Tornado". National Centers for Environmental Information. National Weather Service Weather Forecast Office in Paducah, Kentucky. 2019. Retrieved April 20, 2021.
"Kentucky Event Report: EF2 Tornado". National Centers for Environmental Information. National Weather Service Weather Forecast Office in Paducah, Kentucky. 2019. Retrieved April 20, 2021.
"Illinois Event Report: EF2 Tornado". National Centers for Environmental Information. National Weather Service Weather Forecast Office in Paducah, Kentucky. 2019. Retrieved April 20, 2021.
"Missouri Event Report: EF1 Tornado". National Climatic Data Center. National Oceanic and Atmospheric Administration. 2011. Retrieved April 25, 2022.
"Missouri Event Report: EF0 Tornado". National Climatic Data Center. National Oceanic and Atmospheric Administration. 2011. Retrieved April 26, 2022.
"Oklahoma Event Report: EF0 Tornado". National Climatic Data Center. National Oceanic and Atmospheric Administration. 2011. Retrieved April 26, 2022.
"Illinois Event Report: EF3 Tornado". National Climatic Data Center. National Oceanic and Atmospheric Administration. 2011. Retrieved April 26, 2022.
"Oklahoma Event Report: EF1 Tornado". National Climatic Data Center. National Oceanic and Atmospheric Administration. 2011. Retrieved April 28, 2022."Oklahoma Event Report: EF1 Tornado". National Climatic Data Center. National Oceanic and Atmospheric Administration. 2011. Retrieved April 28, 2022.
"Illinois Event Report: EF2 Tornado". National Climatic Data Center. National Oceanic and Atmospheric Administration. 2011. Retrieved April 28, 2022.
"Illinois Event Report: EF2 Tornado". National Climatic Data Center. National Oceanic and Atmospheric Administration. 2011. Retrieved April 28, 2022.
"Illinois Event Report: EF1 Tornado". National Climatic Data Center. National Oceanic and Atmospheric Administration. 2011. Retrieved April 28, 2022.
"Illinois Event Report: EF0 Tornado". National Climatic Data Center. National Oceanic and Atmospheric Administration. 2011. Retrieved April 28, 2022.
"Illinois Event Report: EF1 Tornado". National Climatic Data Center. National Oceanic and Atmospheric Administration. 2011. Retrieved April 28, 2022.
"Oklahoma Event Report: EF0 Tornado". National Climatic Data Center. National Oceanic and Atmospheric Administration. 2011. Retrieved April 28, 2022.
"Oklahoma Event Report: EF0 Tornado". National Climatic Data Center. National Oceanic and Atmospheric Administration. 2011. Retrieved April 28, 2022.
"Missouri Event Report: EF1 Tornado". National Climatic Data Center. National Oceanic and Atmospheric Administration. 2011. Retrieved April 30, 2022.
"Missouri Event Report: EF0 Tornado". National Climatic Data Center. National Oceanic and Atmospheric Administration. 2011. Retrieved April 30, 2022.
"Illinois Event Report: EF1 Tornado". National Climatic Data Center. National Oceanic and Atmospheric Administration. 2011. Retrieved April 30, 2022.
"Illinois Event Report: EF0 Tornado". National Climatic Data Center. National Oceanic and Atmospheric Administration. 2011. Retrieved April 30, 2022.
"Indiana Event Report: EF1 Tornado". National Climatic Data Center. National Oceanic and Atmospheric Administration. 2011. Retrieved April 30, 2022."Indiana Event Report: EF1 Tornado". National Climatic Data Center. National Oceanic and Atmospheric Administration. 2011. Retrieved April 30, 2022."Indiana Event Report: EF1 Tornado". National Climatic Data Center. National Oceanic and Atmospheric Administration. 2011. Retrieved April 30, 2022."Indiana Event Report: EF0 Tornado". National Climatic Data Center. National Oceanic and Atmospheric Administration. 2011. Retrieved April 30, 2022.
"Illinois Event Report: EF1 Tornado". National Climatic Data Center. National Oceanic and Atmospheric Administration. 2011. Retrieved April 30, 2022.
"Illinois Event Report: EF0 Tornado". National Climatic Data Center. National Oceanic and Atmospheric Administration. 2011. Retrieved April 30, 2022.
"Illinois Event Report: EF1 Tornado". National Climatic Data Center. National Oceanic and Atmospheric Administration. 2011. Retrieved April 30, 2022.
"Indiana Event Report: EF1 Tornado". National Climatic Data Center. National Oceanic and Atmospheric Administration. 2011. Retrieved May 22, 2022.
"Illinois Event Report: EF1 Tornado". National Climatic Data Center. National Oceanic and Atmospheric Administration. 2011. Retrieved April 30, 2022.
"Indiana Event Report: EF0 Tornado". National Climatic Data Center. National Oceanic and Atmospheric Administration. 2011. Retrieved May 22, 2022.
"Indiana Event Report: EF1 Tornado". National Climatic Data Center. National Oceanic and Atmospheric Administration. 2011. Retrieved May 22, 2022.
"Illinois Event Report: EF1 Tornado". National Climatic Data Center. National Oceanic and Atmospheric Administration. 2011. Retrieved April 30, 2022.
"Illinois Event Report: EF1 Tornado". National Climatic Data Center. National Oceanic and Atmospheric Administration. 2011. Retrieved April 30, 2022.
"Illinois Event Report: EF1 Tornado". National Climatic Data Center. National Oceanic and Atmospheric Administration. 2011. Retrieved April 30, 2022.
"Illinois Event Report: EF1 Tornado". National Climatic Data Center. National Oceanic and Atmospheric Administration. 2011. Retrieved April 30, 2022.
"Missouri Event Report: EF0 Tornado". National Climatic Data Center. National Oceanic and Atmospheric Administration. 2011. Retrieved April 30, 2022.
"Illinois Event Report: EF2 Tornado". National Climatic Data Center. National Oceanic and Atmospheric Administration. 2011. Retrieved May 22, 2022.
"Illinois Event Report: EF1 Tornado". National Climatic Data Center. National Oceanic and Atmospheric Administration. 2011. Retrieved May 22, 2022.
"Illinois Event Report: EF2 Tornado". National Climatic Data Center. National Oceanic and Atmospheric Administration. 2011. Retrieved May 22, 2022.
"Indiana Event Report: EF1 Tornado". National Climatic Data Center. National Oceanic and Atmospheric Administration. 2011. Retrieved May 22, 2022.
"Illinois Event Report: EF2 Tornado". National Climatic Data Center. National Oceanic and Atmospheric Administration. 2011. Retrieved May 22, 2022.
"Indiana Event Report: EF1 Tornado". National Climatic Data Center. National Oceanic and Atmospheric Administration. 2011. Retrieved May 22, 2022.
"Illinois Event Report: EF1 Tornado". National Climatic Data Center. National Oceanic and Atmospheric Administration. 2011. Retrieved May 22, 2022.
"Indiana Event Report: EF1 Tornado". National Climatic Data Center. National Oceanic and Atmospheric Administration. 2011. Retrieved May 22, 2022.
"Indiana Event Report: EF1 Tornado". National Climatic Data Center. National Oceanic and Atmospheric Administration. 2011. Retrieved May 22, 2022."Indiana Event Report: EF1 Tornado". National Climatic Data Center. National Oceanic and Atmospheric Administration. 2011. Retrieved May 22, 2022.
"Indiana Event Report: EF1 Tornado". National Climatic Data Center. National Oceanic and Atmospheric Administration. 2011. Retrieved August 22, 2022.
"Ohio Event Report: EF0 Tornado". National Climatic Data Center. National Oceanic and Atmospheric Administration. 2011. Retrieved August 22, 2022.
"Indiana Event Report: EF0 Tornado". National Climatic Data Center. National Oceanic and Atmospheric Administration. 2011. Retrieved August 22, 2022.
"Indiana Event Report: EF1 Tornado". National Climatic Data Center. National Oceanic and Atmospheric Administration. 2011. Retrieved August 22, 2022.
"Indiana Event Report: EF0 Tornado". National Climatic Data Center. National Oceanic and Atmospheric Administration. 2011. Retrieved August 22, 2022.
"Indiana Event Report: EF1 Tornado". National Climatic Data Center. National Oceanic and Atmospheric Administration. 2011. Retrieved August 22, 2022.
"Indiana Event Report: EF2 Tornado". National Climatic Data Center. National Oceanic and Atmospheric Administration. 2011. Retrieved August 22, 2022.
"Indiana Event Report: EF2 Tornado". National Climatic Data Center. National Oceanic and Atmospheric Administration. 2011. Retrieved August 22, 2022.
"Indiana Event Report: EF2 Tornado". National Climatic Data Center. National Oceanic and Atmospheric Administration. 2011. Retrieved August 22, 2022.
"Ohio Event Report: EF1 Tornado". National Climatic Data Center. National Oceanic and Atmospheric Administration. 2011. Retrieved August 22, 2022."Ohio Event Report: EF0 Tornado". National Climatic Data Center. National Oceanic and Atmospheric Administration. 2011. Retrieved August 22, 2022.
"Indiana Event Report: EF1 Tornado". National Climatic Data Center. National Oceanic and Atmospheric Administration. 2011. Retrieved August 22, 2022.
"Indiana Event Report: EF1 Tornado". National Climatic Data Center. National Oceanic and Atmospheric Administration. 2011. Retrieved August 22, 2022.
"Ohio Event Report: EF0 Tornado". National Climatic Data Center. National Oceanic and Atmospheric Administration. 2011. Retrieved August 22, 2022.
"Indiana Event Report: EF0 Tornado". National Climatic Data Center. National Oceanic and Atmospheric Administration. 2011. Retrieved August 22, 2022.
"Kentucky Event Report: EF0 Tornado". National Climatic Data Center. National Oceanic and Atmospheric Administration. 2011. Retrieved August 22, 2022."Kentucky Event Report: EF0 Tornado". National Climatic Data Center. National Oceanic and Atmospheric Administration. 2011. Retrieved August 22, 2022.
"Ohio Event Report: EF1 Tornado". National Climatic Data Center. National Oceanic and Atmospheric Administration. 2011. Retrieved August 22, 2022.
"Indiana Event Report: EF1 Tornado". National Climatic Data Center. National Oceanic and Atmospheric Administration. 2011. Retrieved August 22, 2022.
"Indiana Event Report: EF0 Tornado". National Climatic Data Center. National Oceanic and Atmospheric Administration. 2011. Retrieved August 22, 2022.
"Indiana Event Report: EF0 Tornado". National Climatic Data Center. National Oceanic and Atmospheric Administration. 2011. Retrieved August 22, 2022.
"Indiana Event Report: EF0 Tornado". National Climatic Data Center. National Oceanic and Atmospheric Administration. 2011. Retrieved August 22, 2022.
"Indiana Event Report: EF0 Tornado". National Climatic Data Center. National Oceanic and Atmospheric Administration. 2011. Retrieved August 22, 2022."Indiana Event Report: EF0 Tornado". National Climatic Data Center. National Oceanic and Atmospheric Administration. 2011. Retrieved August 22, 2022.
"Indiana Event Report: EF0 Tornado". National Climatic Data Center. National Oceanic and Atmospheric Administration. 2011. Retrieved August 22, 2022."Indiana Event Report: EF0 Tornado". National Climatic Data Center. National Oceanic and Atmospheric Administration. 2011. Retrieved August 22, 2022.
"Indiana Event Report: EF0 Tornado". National Climatic Data Center. National Oceanic and Atmospheric Administration. 2011. Retrieved August 22, 2022.
"Indiana Event Report: EF1 Tornado". National Climatic Data Center. National Oceanic and Atmospheric Administration. 2011. Retrieved August 22, 2022.
"Ohio Event Report: EF0 Tornado". National Climatic Data Center. National Oceanic and Atmospheric Administration. 2011. Retrieved August 22, 2022.
"Indiana Event Report: EF1 Tornado". National Climatic Data Center. National Oceanic and Atmospheric Administration. 2011. Retrieved August 22, 2022.
"Indiana Event Report: EF1 Tornado". National Climatic Data Center. National Oceanic and Atmospheric Administration. 2011. Retrieved August 22, 2022.
"Kentucky Event Report: EF1 Tornado". National Climatic Data Center. National Oceanic and Atmospheric Administration. 2011. Retrieved August 22, 2022.
"Ohio Event Report: EF0 Tornado". National Climatic Data Center. National Oceanic and Atmospheric Administration. 2011. Retrieved August 22, 2022.
"Indiana Event Report: EF1 Tornado". National Climatic Data Center. National Oceanic and Atmospheric Administration. 2011. Retrieved April 25, 2022.
"Kentucky Event Report: EF0 Tornado". National Climatic Data Center. National Oceanic and Atmospheric Administration. 2011. Retrieved April 25, 2022.
"Kentucky Event Report: EF1 Tornado". National Climatic Data Center. National Oceanic and Atmospheric Administration. 2011. Retrieved April 25, 2022.
"Ohio Event Report: EF1 Tornado". National Climatic Data Center. National Oceanic and Atmospheric Administration. 2011. Retrieved April 25, 2022.
"Ohio Event Report: EF1 Tornado". National Climatic Data Center. National Oceanic and Atmospheric Administration. 2011. Retrieved April 25, 2022.
"Ohio Event Report: EF0 Tornado". National Climatic Data Center. National Oceanic and Atmospheric Administration. 2011. Retrieved April 25, 2022.
"Kentucky Event Report: EF1 Tornado". National Climatic Data Center. National Oceanic and Atmospheric Administration. 2011. Retrieved April 25, 2022.
"Ohio Event Report: EF1 Tornado". National Climatic Data Center. National Oceanic and Atmospheric Administration. 2011. Retrieved April 25, 2022.
"Ohio Event Report: EF2 Tornado". National Climatic Data Center. National Oceanic and Atmospheric Administration. 2011. Retrieved April 25, 2022.
"Ohio Event Report: EF1 Tornado". National Climatic Data Center. National Oceanic and Atmospheric Administration. 2011. Retrieved April 25, 2022.
"Ohio Event Report: EF0 Tornado". National Climatic Data Center. National Oceanic and Atmospheric Administration. 2011. Retrieved April 25, 2022.
"Ohio Event Report: EF0 Tornado". National Climatic Data Center. National Oceanic and Atmospheric Administration. 2011. Retrieved April 25, 2022.
"Alabama Event Report: EF1 Tornado". National Climatic Data Center. National Oceanic and Atmospheric Administration. 2011. Retrieved April 25, 2022.
"Texas Event Report: EF0 Tornado". National Climatic Data Center. National Oceanic and Atmospheric Administration. 2011. Retrieved April 25, 2022.
"Mississippi Event Report: EF1 Tornado". National Climatic Data Center. National Oceanic and Atmospheric Administration. 2011. Retrieved April 25, 2022.
"Texas Event Report: EF0 Tornado". National Climatic Data Center. National Oceanic and Atmospheric Administration. 2011. Retrieved April 20, 2022.
"Texas Event Report: EF0 Tornado". National Climatic Data Center. National Oceanic and Atmospheric Administration. 2011. Retrieved April 20, 2022.
"Texas Event Report: EF2 Tornado". National Climatic Data Center. National Oceanic and Atmospheric Administration. 2011. Retrieved April 20, 2022.
"Texas Event Report: EF1 Tornado". National Climatic Data Center. National Oceanic and Atmospheric Administration. 2011. Retrieved April 20, 2022.
"Texas Event Report: EF0 Tornado". National Climatic Data Center. National Oceanic and Atmospheric Administration. 2011. Retrieved April 20, 2022.
"Oklahoma Event Report: EF0 Tornado". National Climatic Data Center. National Oceanic and Atmospheric Administration. 2011. Retrieved April 21, 2022.
"Oklahoma Event Report: EF0 Tornado". National Climatic Data Center. National Oceanic and Atmospheric Administration. 2011. Retrieved April 21, 2022.
"Arkansas Event Report: EF0 Tornado". National Climatic Data Center. National Oceanic and Atmospheric Administration. 2011. Retrieved April 21, 2022.
"Arkansas Event Report: EF0 Tornado". National Climatic Data Center. National Oceanic and Atmospheric Administration. 2011. Retrieved April 21, 2022.
"Missouri Event Report: EF1 Tornado". National Climatic Data Center. National Oceanic and Atmospheric Administration. 2011. Retrieved April 20, 2022.
"Oklahoma Event Report: EF1 Tornado". National Climatic Data Center. National Oceanic and Atmospheric Administration. 2011. Retrieved April 21, 2022.
"Oklahoma Event Report: EF0 Tornado". National Climatic Data Center. National Oceanic and Atmospheric Administration. 2011. Retrieved April 21, 2022.
"Arkansas Event Report: EF0 Tornado". National Climatic Data Center. National Oceanic and Atmospheric Administration. 2011. Retrieved April 21, 2022.
"Oklahoma Event Report: EF0 Tornado". National Climatic Data Center. National Oceanic and Atmospheric Administration. 2011. Retrieved April 21, 2022.
"Oklahoma Event Report: EF1 Tornado". National Climatic Data Center. National Oceanic and Atmospheric Administration. 2011. Retrieved April 21, 2022.
"Missouri Event Report: EF4 Tornado". National Climatic Data Center. National Oceanic and Atmospheric Administration. 2011. Retrieved April 20, 2022."Missouri Event Report: EF1 Tornado". National Climatic Data Center. National Oceanic and Atmospheric Administration. 2011. Retrieved April 20, 2022."Illinois Event Report: EF2 Tornado". National Climatic Data Center. National Oceanic and Atmospheric Administration. 2011. Retrieved April 20, 2022.
"Oklahoma Event Report: EF0 Tornado". National Climatic Data Center. National Oceanic and Atmospheric Administration. 2011. Retrieved April 21, 2022.
"Oklahoma Event Report: EF0 Tornado". National Climatic Data Center. National Oceanic and Atmospheric Administration. 2011. Retrieved April 21, 2022.
"Kentucky Event Report: EF2 Tornado". National Climatic Data Center. National Oceanic and Atmospheric Administration. 2011. Retrieved April 21, 2022."Kentucky Event Report: EF2 Tornado". National Climatic Data Center. National Oceanic and Atmospheric Administration. 2011. Retrieved April 21, 2022."Kentucky Event Report: EF1 Tornado". National Climatic Data Center. National Oceanic and Atmospheric Administration. 2011. Retrieved April 21, 2022.
"Illinois Event Report: EF2 Tornado". National Climatic Data Center. National Oceanic and Atmospheric Administration. 2011. Retrieved April 21, 2022.
"Illinois Event Report: EF1 Tornado". National Climatic Data Center. National Oceanic and Atmospheric Administration. 2011. Retrieved April 21, 2022.
"Kentucky Event Report: EF2 Tornado". National Climatic Data Center. National Oceanic and Atmospheric Administration. 2011. Retrieved April 21, 2022."Kentucky Event Report: EF2 Tornado". National Climatic Data Center. National Oceanic and Atmospheric Administration. 2011. Retrieved April 21, 2022."Kentucky Event Report: EF2 Tornado". National Climatic Data Center. National Oceanic and Atmospheric Administration. 2011. Retrieved April 21, 2022.
"Kentucky Event Report: EF0 Tornado". National Climatic Data Center. National Oceanic and Atmospheric Administration. 2011. Retrieved April 20, 2022.
"Indiana Event Report: EF0 Tornado". National Climatic Data Center. National Oceanic and Atmospheric Administration. 2011. Retrieved April 24, 2022.
"Kentucky Event Report: EF0 Tornado". National Climatic Data Center. National Oceanic and Atmospheric Administration. 2011. Retrieved April 24, 2022.
"Missouri Event Report: EF0 Tornado". National Climatic Data Center. National Oceanic and Atmospheric Administration. 2011. Retrieved April 24, 2022.
"Kentucky Event Report: EF0 Tornado". National Climatic Data Center. National Oceanic and Atmospheric Administration. 2011. Retrieved April 24, 2022.
"Kentucky Event Report: EF1 Tornado". National Climatic Data Center. National Oceanic and Atmospheric Administration. 2011. Retrieved April 24, 2022."Kentucky Event Report: EF1 Tornado". National Climatic Data Center. National Oceanic and Atmospheric Administration. 2011. Retrieved April 24, 2022.
"Kentucky Event Report: EF1 Tornado". National Climatic Data Center. National Oceanic and Atmospheric Administration. 2011. Retrieved April 24, 2022.
"Illinois Event Report: EF2 Tornado". National Climatic Data Center. National Oceanic and Atmospheric Administration. 2011. Retrieved April 24, 2022.
"Kentucky Event Report: EF1 Tornado". National Climatic Data Center. National Oceanic and Atmospheric Administration. 2011. Retrieved April 24, 2022.
"Kentucky Event Report: EF2 Tornado". National Climatic Data Center. National Oceanic and Atmospheric Administration. 2011. Retrieved April 24, 2022.
"Illinois Event Report: EF1 Tornado". National Climatic Data Center. National Oceanic and Atmospheric Administration. 2011. Retrieved April 24, 2022.
"Arkansas Event Report: EF1 Tornado". National Climatic Data Center. National Oceanic and Atmospheric Administration. 2011. Retrieved April 24, 2022."Arkansas Event Report: EF1 Tornado". National Climatic Data Center. National Oceanic and Atmospheric Administration. 2011. Retrieved April 24, 2022.
"Texas Event Report: EF0 Tornado". National Climatic Data Center. National Oceanic and Atmospheric Administration. 2011. Retrieved April 24, 2022.
"Arkansas Event Report: EF1 Tornado". National Climatic Data Center. National Oceanic and Atmospheric Administration. 2011. Retrieved April 24, 2022.
"Nevada Event Report: EF0 Tornado". National Climatic Data Center. National Oceanic and Atmospheric Administration. 2011. Retrieved April 24, 2022.
"Texas Event Report: EF0 Tornado". National Climatic Data Center. National Oceanic and Atmospheric Administration. 2011. Retrieved April 24, 2022.
"Texas Event Report: EF0 Tornado". National Climatic Data Center. National Oceanic and Atmospheric Administration. 2011. Retrieved April 24, 2022.
"Texas Event Report: EF0 Tornado". National Climatic Data Center. National Oceanic and Atmospheric Administration. 2011. Retrieved April 24, 2022.
"Texas Event Report: EF0 Tornado". National Climatic Data Center. National Oceanic and Atmospheric Administration. 2011. Retrieved April 24, 2022.
"Oklahoma Event Report: EF0 Tornado". National Climatic Data Center. National Oceanic and Atmospheric Administration. 2011. Retrieved April 24, 2022.
"Texas Event Report: EF0 Tornado". National Climatic Data Center. National Oceanic and Atmospheric Administration. 2011. Retrieved April 24, 2022.
"Texas Event Report: EF0 Tornado". National Climatic Data Center. National Oceanic and Atmospheric Administration. 2011. Retrieved April 24, 2022.
"Oklahoma Event Report: EF0 Tornado". National Climatic Data Center. National Oceanic and Atmospheric Administration. 2011. Retrieved April 24, 2022.
"Texas Event Report: EF0 Tornado". National Climatic Data Center. National Oceanic and Atmospheric Administration. 2011. Retrieved April 24, 2022.
"Arkansas Event Report: EF1 Tornado". National Climatic Data Center. National Oceanic and Atmospheric Administration. 2011. Retrieved April 24, 2022.
"Missouri Event Report: EF4 Tornado". National Centers for Environmental Information. National Weather Service Weather Forecast Office in St. Louis, Missouri. 2019. Retrieved April 20, 2021.

spc.noaa.gov

"Severe Weather Event: Apr 19, 2011". Storm Prediction Center. Retrieved 20 April 2021.
"Storm Reports for April 22, 2011". Storm Prediction Center. National Oceanic and Atmospheric Administration. April 22, 2011. Retrieved April 22, 2011.
"SPC Storm Reports for 04/19/2011". National Oceanic and Atmospheric Administration. Storm Prediction Center. April 21, 2011. Retrieved May 22, 2022.

crh.noaa.gov

"Good Friday Tornadoes April 22, 2011". NWS St. Louis. Retrieved 2 November 2012.

washingtonpost.com

"Despite warning, St. Louis tornado caught airport, passengers off guard". Washington Post. Retrieved 9 March 2017.

weather.gov

"April 24-27, 2011: Tornado Outbreak Hits the Four State Region". National Weather Service Forecast Office in Shreveport, Louisiana. Retrieved 20 April 2021.

web.archive.org

Unattributed (April 23, 2011). "Tornadoes Confirmed In Oklahoma, Arkansas". News 9. Archived from the original on May 13, 2011. Retrieved April 24, 2011.