$1B Insurance Price Tag for U.S. Severe Weather in March (and Other Global Events): Aon April 12, 2021 Multiple U.S. severe weather outbreaks, including tornadoes, hail, and flooding, resulted in losses of more than $1 billion for public and private insurers during March, with economic costs approaching $2 billion, according to Aon’s monthly Global Catastrophe Recap report, which evaluates the impact of natural disaster events worldwide each month. The most notable outbreaks – March 22-23, 24-26, and 27-28 – included severe weather across the Central and Southern U.S. A preliminary confirmed total of 122 tornadoes touched down during the month, and at least seven people were killed from tornadic events. Five of the 122 tornadoes were rated EF3 (four) or EF4 (one).