| 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 2022 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 |
$10,544 |
| 2 |
Apr. 22-28, 2011 |
Late April 2011 Super Tornado Outbreak |
AL, AR, GA, IL, KY, LA, MO, MS, OH, OK, TN, TX, VA |
7,300 |
9,682 |
| 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 |
6,900 |
9,109 |
| 4 |
May 2-5, 2003 |
SCS Outbreak |
AL, AR, CO, GA, IA, IL, IN, KS, KY, MO, MS, NC, NE, OH, OK, SC, SD, TN |
3,205 |
5,210 |
| 5 |
May 27-30, 2019 |
SCS Outbreak |
CO, TX, OK, KS, AR, MO, IA, IL, IN, OH, PA, WV, WY, NJ, NY |
3,650 |
4,252 |
| 6 |
Apr. 10-15, 2016 |
San Antonio Hailstorm |
TX, LA, OK, AR, MS, KS, MO |
3,200 |
3,990 |
| 7 |
Apr. 6-12, 2001 |
St. Louis Hailstorm |
AR, CO, IA, IL, IN, KS, MI, MN, MO, NE, OH, OK, PA, TX |
2,200 |
3,710 |
| 8 |
May 18-23, 2014 |
SCS Outbreak |
CO, DE, IA, IL, IN, MT, NY, OH, PA, SC, VA |
2,950 |
3,669 |
| 9 |
Oct. 5-6, 2010 |
Phoenix Hailstorm |
AZ |
2,700 |
3,683 |
| 10 |
Dec. 10-12, 2021 |
U.S. December Tornado Outbreak |
AR, IL, IN, KY, MI, MO, NY, OH, TN, TX |
3,300 |
3,531 |
(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 2022. Subject to change as loss estimates are further developed. As of January 2023.
(2) Adjusted for inflation by Aon using the U.S. Consumer Price Index.
Source: Aon. |
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