 | This article needs additional citations for verification. (January 2023) |
 Paths of tornadoes over Northern Indiana and Southern Michigan | |
| Type | Tornado outbreak |
|---|---|
| Duration | March 28, 1920 |
| Tornadoes confirmed | ≥ 37 |
| Max. rating1 | F4 tornado |
| Duration of tornado outbreak2 | ~9 hours |
| Fatalities | ≥ 153 fatalities, ≥ 1,215 injuries |
| Damage | Unknown[nb 1] |
| Areas affected | Midwestern and Southern United States |
| 1Most severe tornado damage; see Fujita scale 2Time from first tornado to last tornado | |
On March 28, 1920, a large outbreak of at least 37 tornadoes, 31 of which were significant, took place across the Midwestern and Southern United States. The tornadoes left at least 153 dead and at least 1,215 injured. Many communities and farmers alike were caught off-guard as the storms moved to the northeast at speeds that reached over 60 mph (97 km/h). Most of the fatalities occurred in Georgia (37), Ohio (28), and Indiana (21), while the other states had lesser totals. Little is known about many of the specific tornadoes that occurred, and the list below is only partial.[nb 2][nb 3]
Severe thunderstorms began developing in Missouri during the early morning hours. The storms moved quickly to the northeast towards Chicago, Illinois. The first tornado injured five people 35 mi (56 km) southeast of Springfield, Missouri, in Douglas County. This first tornado was a harbinger of things to come as the morning went on and the atmosphere began to destabilize, due to the abundance of sunshine that preceded the cold front in the warm sector, which covered the lower Great Lakes region extending southward well past the Ohio River Valley.[citation needed]
Cite error: There are <ref group=nb> tags on this page, but the references will not show without a {{reflist|group=nb}} template (see the help page).
- ^ Grazulis, Thomas P. (July 1993). Significant Tornadoes 1680–1991: A Chronology and Analysis of Events. St. Johnsbury, Vermont: The Tornado Project of Environmental Films. p. 141. ISBN 1-879362-03-1.
- ^ Grazulis, Thomas P. (2001). The Tornado: Nature's Ultimate Windstorm. Norman: University of Oklahoma Press. p. 131. ISBN 978-0-8061-3538-0.
- ^ Edwards, Roger (5 March 2015). "Enhanced F Scale for Tornado Damage". The Online Tornado FAQ (by Roger Edwards, SPC). Storm Prediction Center. Retrieved 25 February 2016.
- ^ "Enhanced Fujita Scale (EF-Scale)". Environment and Climate Change Canada. 6 June 2013. Archived from the original on 3 March 2016. Retrieved 25 February 2016.
- ^ "The International Tornado Intensity Scale". Tornado and Storm Research Organisation. 2016. Archived from the original on 5 March 2016. Retrieved 25 February 2016.
- ^ Grazulis 2001, pp. 251–4
- ^ Edwards, Roger (5 March 2015). "The Online Tornado FAQ (by Roger Edwards, SPC)". Storm Prediction Center: Frequently Asked Questions about Tornadoes. Storm Prediction Center. Retrieved 25 February 2016.
- ^ Cook, A. R.; Schaefer, J. T. (August 2008). Written at Norman, Oklahoma. "The Relation of El Niño–Southern Oscillation (ENSO) to Winter Tornado Outbreaks". Monthly Weather Review. 136 (8). Boston: American Meteorological Society: 3135. Bibcode:2008MWRv..136.3121C. doi:10.1175/2007MWR2171.1.
