"Storm Events Database". www.ncdc.noaa.gov. NOAA National Centers For Environmental Information. Retrieved January 3, 2025.
"Storm Events Database". www.ncdc.noaa.gov. NOAA National Centers For Environmental Information. Archived from the original on January 12, 2025. Retrieved January 3, 2025.
"Storm Events Database". www.ncdc.noaa.gov. NOAA National Centers For Environmental Information. Archived from the original on January 12, 2025. Retrieved January 3, 2025.
"May 1997 Tornado Outbreak"(PDF). New Braunfels, Texas: National Weather Service Austin/San Antonio. May 2017. Archived(PDF) from the original on March 19, 2021. Retrieved April 7, 2021.
Henderson et al. (1998), p. A9. Henderson, James H.; Hakkarinen, Ida M.; Lerner, William H.; McLaughlin, Melvin R.; Looney, James M.; McIntyre, E. L.; Peters, Brian E.; Trainor, Marilu; Paz, Enrique; Kolavic, Shellie Ann; Zane, David; Phan, Long T. (April 1998). The Central Texas Tornadoes of May 27, 1997(PDF) (Service Assessment). Silver Spring, Maryland: National Oceanic and Atmospheric Administration. Retrieved April 7, 2021. This article incorporates text from this source, which is in the public domain.
Henderson et al. (1998), p. 1. Henderson, James H.; Hakkarinen, Ida M.; Lerner, William H.; McLaughlin, Melvin R.; Looney, James M.; McIntyre, E. L.; Peters, Brian E.; Trainor, Marilu; Paz, Enrique; Kolavic, Shellie Ann; Zane, David; Phan, Long T. (April 1998). The Central Texas Tornadoes of May 27, 1997(PDF) (Service Assessment). Silver Spring, Maryland: National Oceanic and Atmospheric Administration. Retrieved April 7, 2021. This article incorporates text from this source, which is in the public domain.
"May 1997 Tornado Outbreak"(PDF). New Braunfels, Texas: National Weather Service Austin/San Antonio. May 2017. Archived(PDF) from the original on March 19, 2021. Retrieved April 7, 2021.
"Storm Events Database". www.ncdc.noaa.gov. NOAA National Centers For Environmental Information. Archived from the original on January 12, 2025. Retrieved January 3, 2025.
"Storm Events Database". www.ncdc.noaa.gov. NOAA National Centers For Environmental Information. Archived from the original on January 12, 2025. Retrieved January 3, 2025.