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Top 10 Costliest U.S. Catastrophes Involving Tornadoes (1)

($ millions)

      Estimated insured loss (2)
Rank Date Location Dollars when occurred In 2018 dollars (3)
1 Apr. 22-28, 2011 AL, AR, GA, IL, KY, LA, MO, MS, OH, OK, TN, TX, VA $7,300 $8,210
2 May 20-27, 2011 AR, GA, IA, IL, IN, KS, KY, MI, MN, MO, NC, NE, NY, OH, OK, PA, TN, TX, VA, WI 6,900 7,760
3 May 2-11, 2003 AL, AR, CO, GA, IA, IL, IN, KS, KY, MO, MS, NC, NE, OH, OK, SC, SD, TN 3,205 4,283
4 May 26-29, 2019 CO, IA, IL, IN, KS, MO, NE, NJ, NY, OH, OK, PA, WY 2,835 2,835
5 Oct. 4-6, 2010 AZ 2,700 3,100
6 May 8-11, 2017 CO, MO, NM, OK, TX 2,507 3,041
7 Mar. 2-3, 2012 AL, GA, IN, KY, OH, TN 2,500 2,758
8 Apr 28-29, 2012 IL, IN, KY, MO, TX 2,500 2,758
9 Apr. 6-12, 2001 AR, CO, IA, IL, IN, KS, MI, MN, MO, NE, OH, OK, PA, TX 2,200 2,563
10 Apr. 3-5, 2011 GA, IA, IL, KS, KY, MO, NC, SC, TN, WI 2,000 2,249
(1) Based on data through November 20, 2019. (2) Property coverage only. In addition to losses due to tornadoes themselves, amounts may include losses due to hail, wind and flooding during the same event. (3) Adjusted for inflation through 2018 by the Insurance Information Institute using the GDP implicit price deflator. Source: The Property Claim Services® (PCS®) unit of ISO®, a Verisk Analytics® company; Bureau of Labor Statistics.