| Top 10 Costliest U.S. Catastrophes Involving Tornadoes (1) |
($ millions)
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Estimated insured loss |
| Rank |
Date |
Event |
Location |
Dollars when
occurred |
In 2023 dollars (2) |
| 1 |
Aug. 8-12, 2020 |
Includes Aug. 10 Midwest Derecho |
IA, IL, IN, KS, MI, MN, MO, NE, OH,
SD, WI, PA, DC, MD, VA, WV |
$9,200 |
$10,879 |
| 2 |
Apr. 22-28, 2011 |
Late April 2011 Super Tornado Outbreak |
AL, AR, GA, IL, KY, LA, MO, MS,
OH, OK, TN, TX, VA |
7,560 |
10,346 |
| 3 |
May 21-27, 2011 |
Joplin, MO Tornado |
AR, GA, IA, IL, IN, KS, KY, MI, MN,
MO, NC, NE, NY, OH, OK, PA, TN,
TX, VA, WI |
7,000 |
9,535 |
| 4 |
May 2-11, 2003 |
SCS Outbreak |
AL, AR, CO, GA, IA, IL, IN, KS, KY, MO,
MS, NC, NE, OH, OK, SC, SD, TN |
3,300 |
5,535 |
| 5 |
Mar. 1-3, 2023 |
SCS Outbreak |
AL, AR, GA, IN, KY, MS, OH, PA, TN, VA |
4,900 |
4,997 |
| 6 |
Mar. 31-Apr. 1, 2023 |
Tornado Outbreak |
AL, AR, DE, GA, IL, IN, IO, KY, MI, NE,
OH, PA, TN, TX |
4,300 |
4,385 |
| 7 |
May 27-30, 2019 |
SCS Outbreak |
CO, TX, OK, KS, AR, MO, IA, IL, IN, OH, PA, WV, WY, NJ, NY |
3,650 |
4,387 |
| 8 |
Jun. 21-26, 2023 |
SCS Outbreak |
TX, CO, Southeast |
4,250 |
4,287 |
| 9 |
Apr. 10-15, 2016 |
San Antonio Hailstorm |
TX, LA, OK, AR, MS, KS, MO |
3,200 |
4,117 |
| 10 |
Apr. 6-12, 2001 |
St. Louis Hailstorm |
AR, CO, IA, IL, IN, KS, MI, MN, MO, NE, OH, OK, PA, TX |
2,200 |
3,828 |
(1) Defined by Aon as severe convective storms including insured thunderstorm events and may include tornado, hail, damaging straight-line winds (derechos) and flash flood impacts from events. Includes events that occurred through 2023. Subject to change as loss estimates are further developed. As of January 2024.
(2) Adjusted for inflation by Aon using the U.S. Consumer Price Index.
Source: Aon. |
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