U.S. Hailstorms that Cost Insurers Billions – and Other April Natural Disasters: Aon May 12, 2021 Insurers face multi-billion-dollar losses from U.S. hailstorms during April, according to Aon’s Global Catastrophe Recap report, which each month analyzes the impact of natural disaster events worldwide. The report said severe weather in the U.S. resulted in outbreaks of thunderstorms, driven by large hail, tornadoes and damaging straight-line winds, which caused considerable damage to residential and commercial property, automobiles and agriculture in parts of the Plains, Midwest, Southeast and Northeast. The most significant outbreak occurred from April 27-30, where a particularly damaging sequence of hailstorms affected three heavily populated areas on April 28, said the report, noting that much of the damage was caused by hail larger than baseballs (6.5 inches or 16.5 centimeters). These hailstorms caused extensive damage in the metro regions of San Antonio and Fort Worth in Texas, and Norman, Okla. Total economic losses from these three areas alone were expected to well exceed $1 billion.