References analysis of the Wikipedia article "List of United States tornadoes in December 2021" in the English version

noaa.gov

ncdc.noaa.gov

"U.S. Tornadoes". National Centers for Environmental Information. National Oceanic and Atmospheric Administration. Retrieved September 1, 2023.

"Kentucky Event Report: EF0 Tornado" (Report). National Centers for Environmental Information. National Weather Service in Paducah, Kentucky. 2021. Retrieved March 18, 2022.

"Missouri Event Report: EF1 Tornado" (Report). National Centers for Environmental Information. National Weather Service in Springfield, Missouri. 2021. Retrieved March 18, 2022.

"Illinois Event Report: EF1 Tornado" (Report). National Centers for Environmental Information. National Weather Service in Paducah, Kentucky. 2021. Retrieved March 18, 2022.

"Kentucky Event Report: EF1 Tornado" (Report). National Centers for Environmental Information. National Weather Service in Louisville, Kentucky. 2021. Retrieved March 18, 2022.

"Kentucky Event Report: EF0 Tornado" (Report). National Centers for Environmental Information. National Weather Service in Paducah, Kentucky. 2021. Retrieved March 18, 2022.

"Kentucky Event Report: EF1 Tornado" (Report). National Centers for Environmental Information. National Weather Service in Paducah, Kentucky. 2021. Retrieved March 18, 2022.

"Kentucky Event Report: EF0 Tornado" (Report). National Centers for Environmental Information. National Weather Service in Paducah, Kentucky. 2021. Retrieved March 18, 2022.

"Tennessee Event Report: EF0 Tornado" (Report). National Centers for Environmental Information. National Weather Service in Nashville, Tennessee. 2021. Retrieved March 18, 2022.

"Louisiana Event Report: EF0 Tornado" (Report). National Centers for Environmental Information. National Weather Service in Lake Charles, Louisiana. 2021. Retrieved March 18, 2022.

"Tennessee Event Report: EF0 Tornado" (Report). National Centers for Environmental Information. National Weather Service in Nashville, Tennessee. 2021. Retrieved March 18, 2022.

"Tennessee Event Report: EF1 Tornado" (Report). National Centers for Environmental Information. National Weather Service in Huntsville, Alabama. 2021. Retrieved March 18, 2022.

"Tennessee Event Report: EF1 Tornado" (Report). National Centers for Environmental Information. National Weather Service in Nashville, Tennessee. 2021. Retrieved March 18, 2022.

"Alabama Event Report: EFU Tornado" (Report). National Centers for Environmental Information. National Weather Service in Huntsville, Alabama. 2021. Retrieved March 18, 2022.

"Louisiana Event Report: EF0 Tornado" (Report). National Centers for Environmental Information. National Weather Service in New Orleans, Louisiana. 2021. Retrieved March 18, 2022.

"Florida Event Report: EF0 Tornado" (Report). National Centers for Environmental Information. National Weather Service in Tallahassee, Florida. 2021. Retrieved March 18, 2022.

"Florida Event Report: EF1 Tornado" (Report). National Centers for Environmental Information. National Weather Service in Jacksonville, Florida. 2021. Retrieved March 18, 2022.

"Alabama Event Report: EF0 Tornado". National Centers for Environmental Information. National Weather Service in Birmingham, Alabama. 2021. Archived from the original on March 20, 2022. Retrieved March 19, 2022.

"Missouri Event Report: EF1 Tornado". National Centers for Environmental Information. National Weather Service in Springfield, Missouri. 2021. Archived from the original on March 20, 2022. Retrieved March 19, 2022."Missouri Event Report: EF1 Tornado". National Centers for Environmental Information. National Weather Service in Springfield, Missouri. 2021. Archived from the original on March 20, 2022. Retrieved March 19, 2022.

"Arkansas Event Report: EF0 Tornado". National Centers for Environmental Information. National Weather Service in Memphis, Tennessee. 2021. Archived from the original on March 20, 2022. Retrieved March 19, 2022.

"Missouri Event Report: EF0 Tornado". National Centers for Environmental Information. National Weather Service in St. Louis, Missouri. 2021. Archived from the original on March 20, 2022. Retrieved March 19, 2022.

"Arkansas Event Report: EF1 Tornado". National Centers for Environmental Information. National Weather Service in Memphis, Tennessee. 2021. Archived from the original on March 20, 2022. Retrieved March 19, 2022.

"Arkansas Event Report: EF3 Tornado". National Centers for Environmental Information. National Weather Service in Memphis, Tennessee. 2021. Archived from the original on March 20, 2022. Retrieved March 19, 2022."Arkansas Event Report: EF3 Tornado". National Centers for Environmental Information. National Weather Service in Memphis, Tennessee. 2021. Archived from the original on March 20, 2022. Retrieved March 19, 2022."Missouri Event Report: EF3 Tornado". National Centers for Environmental Information. National Weather Service in Memphis, Tennessee. 2021. Archived from the original on March 20, 2022. Retrieved March 19, 2022."Missouri Event Report: EF4 Tornado". National Centers for Environmental Information. National Weather Service in Memphis, Tennessee. 2021. Archived from the original on March 20, 2022. Retrieved March 19, 2022."Tennessee Event Report: EF2 Tornado". National Centers for Environmental Information. National Weather Service in Memphis, Tennessee. 2021. Archived from the original on March 19, 2022. Retrieved March 19, 2022."Missouri Event Report: EF2 Tornado". National Centers for Environmental Information. National Weather Service in Memphis, Tennessee. 2021. Archived from the original on March 20, 2022. Retrieved March 19, 2022."Tennessee Event Report: EF4 Tornado". National Centers for Environmental Information. National Weather Service in Memphis, Tennessee. 2021. Archived from the original on March 19, 2022. Retrieved March 19, 2022."Tennessee Event Report: EF2 Tornado". National Centers for Environmental Information. National Weather Service in Memphis, Tennessee. 2021. Archived from the original on March 19, 2022. Retrieved March 19, 2022.

"Missouri Event Report: EF3 Tornado". National Centers for Environmental Information. National Weather Service in St. Louis, Missouri. 2021. Archived from the original on March 20, 2022. Retrieved March 19, 2022."Missouri Event Report: EF1 Tornado". National Centers for Environmental Information. National Weather Service in St. Louis, Missouri. 2021. Archived from the original on March 20, 2022. Retrieved March 19, 2022."Missouri Event Report: EF1 Tornado". National Centers for Environmental Information. National Weather Service in St. Louis, Missouri. 2021. Archived from the original on March 20, 2022. Retrieved March 19, 2022."Missouri Event Report: EF0 Tornado". National Centers for Environmental Information. National Weather Service in St. Louis, Missouri. 2021. Archived from the original on March 20, 2022. Retrieved March 19, 2022.

"Arkansas Event Report: EF1 Tornado". National Centers for Environmental Information. National Weather Service in Little Rock, Arkansas. 2021. Archived from the original on March 20, 2022. Retrieved March 19, 2022.

"Arkansas Event Report: EF2 Tornado". National Centers for Environmental Information. National Weather Service in Little Rock, Arkansas. 2021. Archived from the original on March 20, 2022. Retrieved March 19, 2022."Arkansas Event Report: EF2 Tornado". National Centers for Environmental Information. National Weather Service in Little Rock, Arkansas. 2021. Archived from the original on March 20, 2022. Retrieved March 19, 2022.

"Illinois Event Report: EF3 Tornado". National Centers for Environmental Information. National Weather Service in St. Louis, Missouri. 2021. Archived from the original on March 19, 2022. Retrieved March 19, 2022.

"Kentucky Event Report: EF1 Tornado". National Centers for Environmental Information. National Weather Service in Paducah, Kentucky. 2021. Archived from the original on March 20, 2022. Retrieved March 19, 2022.

"Tennessee Event Report: EF0 Tornado". National Centers for Environmental Information. National Weather Service in Memphis, Tennessee. 2021. Archived from the original on March 19, 2022. Retrieved March 19, 2022.

"Tennessee Event Report: EF0 Tornado". National Centers for Environmental Information. National Weather Service in Memphis, Tennessee. 2021. Archived from the original on September 18, 2023. Retrieved March 19, 2022."Kentucky Event Report: EF4 Tornado". National Centers for Environmental Information. National Weather Service in Paducah, Kentucky. 2021. Archived from the original on September 18, 2023. Retrieved March 19, 2022."Kentucky Event Report: EF3 Tornado". National Centers for Environmental Information. National Weather Service in Paducah, Kentucky. 2021. Archived from the original on March 20, 2022. Retrieved March 19, 2022."Kentucky Event Report: EF4 Tornado". National Centers for Environmental Information. National Weather Service in Paducah, Kentucky. 2021. Archived from the original on March 20, 2022. Retrieved March 19, 2022."Kentucky Event Report: EF4 Tornado". National Centers for Environmental Information. National Weather Service in Paducah, Kentucky. 2021. Archived from the original on March 20, 2022. Retrieved March 19, 2022."Kentucky Event Report: EF3 Tornado". National Centers for Environmental Information. National Weather Service in Paducah, Kentucky. 2021. Archived from the original on March 20, 2022. Retrieved March 19, 2022."Kentucky Event Report: EF4 Tornado". National Centers for Environmental Information. National Weather Service in Paducah, Kentucky. 2021. Archived from the original on March 20, 2022. Retrieved March 19, 2022."Kentucky Event Report: EF4 Tornado". National Centers for Environmental Information. National Weather Service in Paducah, Kentucky. 2021. Archived from the original on March 20, 2022. Retrieved March 19, 2022."Kentucky Event Report: EF4 Tornado". National Centers for Environmental Information. National Weather Service in Paducah, Kentucky. 2021. Archived from the original on March 20, 2022. Retrieved March 19, 2022."Kentucky Event Report: EF3 Tornado". National Centers for Environmental Information. National Weather Service in Louisville, Kentucky. 2021. Archived from the original on March 20, 2022. Retrieved March 19, 2022."Kentucky Event Report: EF1 Tornado". National Centers for Environmental Information. National Weather Service in Louisville, Kentucky. 2021. Archived from the original on March 20, 2022. Retrieved March 19, 2022."Kentucky Event Report: EF1 Tornado". National Centers for Environmental Information. National Weather Service in Louisville, Kentucky. 2021. Archived from the original on March 20, 2022. Retrieved March 19, 2022."Kentucky Event Report: EF1 Tornado". National Centers for Environmental Information. National Weather Service in Louisville, Kentucky. 2021. Archived from the original on March 20, 2022. Retrieved March 19, 2022."Kentucky Event Report: EF0 Tornado". National Centers for Environmental Information. National Weather Service in Louisville, Kentucky. 2021. Archived from the original on March 20, 2022. Retrieved March 19, 2022.

"Illinois Event Report: EF1 Tornado". National Centers for Environmental Information. National Weather Service in St. Louis, Missouri. 2021. Archived from the original on March 19, 2022. Retrieved March 19, 2022."Illinois Event Report: EF1 Tornado". National Centers for Environmental Information. National Weather Service in St. Louis, Missouri. 2021. Archived from the original on March 19, 2022. Retrieved March 19, 2022."Illinois Event Report: EF1 Tornado". National Centers for Environmental Information. National Weather Service in St. Louis, Missouri. 2021. Archived from the original on March 19, 2022. Retrieved March 19, 2022."Illinois Event Report: EF2 Tornado". National Centers for Environmental Information. National Weather Service in Lincoln, Illinois. 2021. Archived from the original on March 20, 2022. Retrieved March 19, 2022.

"Illinois Event Report: EF2 Tornado". National Centers for Environmental Information. National Weather Service in Lincoln, Illinois. 2021. Archived from the original on March 20, 2022. Retrieved March 19, 2022."Illinois Event Report: EF2 Tornado". National Centers for Environmental Information. National Weather Service in Lincoln, Illinois. 2021. Archived from the original on March 20, 2022. Retrieved March 19, 2022."Illinois Event Report: EF2 Tornado". National Centers for Environmental Information. National Weather Service in Lincoln, Illinois. 2021. Archived from the original on March 20, 2022. Retrieved March 19, 2022.

"Illinois Event Report: EF0 Tornado". National Centers for Environmental Information. National Weather Service in Chicago, Illinois. 2021. Archived from the original on March 20, 2022. Retrieved March 19, 2022.

"Missouri Event Report: EF2 Tornado". National Centers for Environmental Information. National Weather Service in St. Louis, Missouri. 2021. Archived from the original on March 20, 2022. Retrieved March 19, 2022.

"Illinois Event Report: EF1 Tornado". National Centers for Environmental Information. National Weather Service in Lincoln, Illinois. 2021. Archived from the original on March 20, 2022. Retrieved March 19, 2022.

"Tennessee Event Report: EF2 Tornado". National Centers for Environmental Information. National Weather Service in Memphis, Tennessee. 2021. Archived from the original on March 19, 2022. Retrieved March 19, 2022."Tennessee Event Report: EF3 Tornado". National Centers for Environmental Information. National Weather Service in Memphis, Tennessee. 2021. Archived from the original on March 19, 2022. Retrieved March 19, 2022."Tennessee Event Report: EF2 Tornado". National Centers for Environmental Information. National Weather Service in Memphis, Tennessee. 2021. Archived from the original on March 19, 2022. Retrieved March 19, 2022."Tennessee Event Report: EF1 Tornado". National Centers for Environmental Information. National Weather Service in Memphis, Tennessee. 2021. Archived from the original on March 19, 2022. Retrieved March 19, 2022."Tennessee Event Report: EF3 Tornado". National Centers for Environmental Information. National Weather Service in Memphis, Tennessee. 2021. Archived from the original on March 19, 2022. Retrieved March 19, 2022."Tennessee Event Report: EF3 Tornado". National Centers for Environmental Information. National Weather Service in Memphis, Tennessee. 2021. Archived from the original on March 19, 2022. Retrieved March 19, 2022."Tennessee Event Report: EF2 Tornado". National Centers for Environmental Information. National Weather Service in Nashville, Tennessee. 2021. Archived from the original on April 18, 2022. Retrieved March 19, 2022."Kentucky Event Report: EF1 Tornado". National Centers for Environmental Information. National Weather Service in Paducah, Kentucky. 2021. Archived from the original on March 20, 2022. Retrieved March 19, 2022."Kentucky Event Report: EF2 Tornado". National Centers for Environmental Information. National Weather Service in Paducah, Kentucky. 2021. Archived from the original on March 20, 2022. Retrieved March 19, 2022."Kentucky Event Report: EF1 Tornado". National Centers for Environmental Information. National Weather Service in Paducah, Kentucky. 2021. Archived from the original on March 20, 2022. Retrieved March 19, 2022.

"Kentucky Event Report: EF3 Tornado". National Centers for Environmental Information. National Weather Service in Louisville, Kentucky. 2021. Archived from the original on March 20, 2022. Retrieved March 20, 2022."Kentucky Event Report: EF1 Tornado". National Centers for Environmental Information. National Weather Service in Louisville, Kentucky. 2021. Archived from the original on March 20, 2022. Retrieved March 20, 2022.

"Tennessee Event Report: EF1 Tornado". National Centers for Environmental Information. National Weather Service in Memphis, Tennessee. 2021. Archived from the original on March 19, 2022. Retrieved March 20, 2022."Tennessee Event Report: EF1 Tornado". National Centers for Environmental Information. National Weather Service in Memphis, Tennessee. 2021. Archived from the original on March 19, 2022. Retrieved March 20, 2022.

"Kentucky Event Report: EF0 Tornado". National Centers for Environmental Information. National Weather Service in Louisville, Kentucky. 2021. Archived from the original on March 20, 2022. Retrieved March 20, 2022."Kentucky Event Report: EF2 Tornado". National Centers for Environmental Information. National Weather Service in Louisville, Kentucky. 2021. Archived from the original on March 20, 2022. Retrieved March 20, 2022."Kentucky Event Report: EF1 Tornado". National Centers for Environmental Information. National Weather Service in Louisville, Kentucky. 2021. Archived from the original on March 20, 2022. Retrieved March 20, 2022.

"Kentucky Event Report: EF2 Tornado". National Centers for Environmental Information. National Weather Service in Louisville, Kentucky. 2021. Archived from the original on March 20, 2022. Retrieved March 20, 2022."Kentucky Event Report: EF1 Tornado". National Centers for Environmental Information. National Weather Service in Louisville, Kentucky. 2021. Archived from the original on March 20, 2022. Retrieved March 20, 2022.

"Tennessee Event Report: EF1 Tornado". National Centers for Environmental Information. National Weather Service in Memphis, Tennessee. 2021. Archived from the original on March 19, 2022. Retrieved March 20, 2022."Tennessee Event Report: EF0 Tornado". National Centers for Environmental Information. National Weather Service in Memphis, Tennessee. 2021. Archived from the original on March 19, 2022. Retrieved March 20, 2022.

"Ohio Event Report: EF1 Tornado". National Centers for Environmental Information. National Weather Service in Wilmington, Ohio. 2021. Archived from the original on March 21, 2022. Retrieved March 20, 2022.

"Tennessee Event Report: EF0 Tornado". National Centers for Environmental Information. National Weather Service in Nashville, Tennessee. 2021. Archived from the original on April 18, 2022. Retrieved April 18, 2022."Tennessee Event Report: EF0 Tornado". National Centers for Environmental Information. National Weather Service in Nashville, Tennessee. 2021. Archived from the original on April 18, 2022. Retrieved April 18, 2022."Tennessee Event Report: EF2 Tornado". National Centers for Environmental Information. National Weather Service in Nashville, Tennessee. 2021. Archived from the original on April 18, 2022. Retrieved April 18, 2022.

"Kentucky Event Report: EF3 Tornado". National Centers for Environmental Information. National Weather Service in Louisville, Kentucky. 2021. Archived from the original on March 20, 2022. Retrieved March 20, 2022."Kentucky Event Report: EF2 Tornado". National Centers for Environmental Information. National Weather Service in Louisville, Kentucky. 2021. Archived from the original on March 20, 2022. Retrieved March 20, 2022.

"Tennessee Event Report: EF1 Tornado". National Centers for Environmental Information. National Weather Service in Nashville, Tennessee. 2021. Archived from the original on April 18, 2022. Retrieved April 18, 2022."Tennessee Event Report: EF2 Tornado". National Centers for Environmental Information. National Weather Service in Nashville, Tennessee. 2021. Archived from the original on April 18, 2022. Retrieved April 18, 2022."Tennessee Event Report: EF0 Tornado". National Centers for Environmental Information. National Weather Service in Nashville, Tennessee. 2021. Archived from the original on April 18, 2022. Retrieved April 18, 2022.

"Kentucky Event Report: EF1 Tornado". National Centers for Environmental Information. National Weather Service in Louisville, Kentucky. 2021. Archived from the original on March 20, 2022. Retrieved March 20, 2022."Kentucky Event Report: EF1 Tornado". National Centers for Environmental Information. National Weather Service in Louisville, Kentucky. 2021. Archived from the original on March 20, 2022. Retrieved March 20, 2022.

"Tennessee Event Report: EF0 Tornado". National Centers for Environmental Information. National Weather Service in Nashville, Tennessee. 2021. Archived from the original on April 18, 2022. Retrieved April 18, 2022."Tennessee Event Report: EF0 Tornado". National Centers for Environmental Information. National Weather Service in Nashville, Tennessee. 2021. Archived from the original on April 18, 2022. Retrieved April 18, 2022."Tennessee Event Report: EF0 Tornado". National Centers for Environmental Information. National Weather Service in Nashville, Tennessee. 2021. Archived from the original on April 18, 2022. Retrieved April 18, 2022.

"Mississippi Event Report: EF1 Tornado". National Centers for Environmental Information. National Weather Service in Memphis, Tennessee. 2021. Archived from the original on March 21, 2022. Retrieved March 20, 2022.

"Georgia Event Report: EF0 Tornado". National Centers for Environmental Information. National Weather Service in Atlanta, Georgia. 2021. Archived from the original on March 21, 2022. Retrieved March 20, 2022.

Nebraska Event Report: EF0 Tornado (Report). National Centers for Environmental Information. 2021. Retrieved March 21, 2022 – via National Weather Service Weather Forecast Office in Hastings, Nebraska.

Nebraska Event Report: EF1 Tornado (Report). National Centers for Environmental Information. 2021. Retrieved March 21, 2022 – via National Weather Service Weather Forecast Office in Hastings, Nebraska.

Nebraska Event Report: EF2 Tornado (Report). National Centers for Environmental Information. 2021. Retrieved March 21, 2022 – via National Weather Service Weather Forecast Office in Omaha, Nebraska.

Iowa Event Report: EFU Tornado (Report). National Centers for Environmental Information. 2021. Retrieved April 18, 2022 – via National Weather Service Weather Forecast Office in Sioux Falls, South Dakota.

Iowa Event Report: EF1 Tornado (Report). National Centers for Environmental Information. 2021. Retrieved April 18, 2022 – via National Weather Service Weather Forecast Office in Sioux Falls, South Dakota.

Iowa Event Report: EF2 Tornado (Report). National Centers for Environmental Information. 2021. Retrieved April 18, 2022 – via National Weather Service Weather Forecast Office in Sioux Falls, South Dakota.

Iowa Event Report: EFU Tornado (Report). National Centers for Environmental Information. 2021. Retrieved March 21, 2022 – via National Weather Service Weather Forecast Office in Des Moines, Iowa.

Iowa Event Report: EF2 Tornado (Report). National Centers for Environmental Information. 2021. Retrieved March 21, 2022 – via National Weather Service Weather Forecast Office in Des Moines, Iowa.

Iowa Event Report: EF1 Tornado (Report). National Centers for Environmental Information. 2021. Retrieved March 21, 2022 – via National Weather Service Weather Forecast Office in Des Moines, Iowa.

Iowa Event Report: EF0 Tornado (Report). National Centers for Environmental Information. 2021. Retrieved April 18, 2022 – via National Weather Service Weather Forecast Office in Sioux Falls, South Dakota.

Iowa Event Report: EF0 Tornado (Report). National Centers for Environmental Information. 2021. Retrieved March 21, 2022 – via National Weather Service Weather Forecast Office in Des Moines, Iowa.