Severe Convective Storms and Their Financial Implications on Insurance

According to the 2026 Severe Convective Storm Risk Report by Cotality, more than 43.5 million properties in the United States face moderate or greater risk from hail. This is equivalent to about $17.84 trillion in reconstruction cost value. The report highlights that hailstorms have become a significant source of financial loss, potentially matching the damage caused by Category 4 hurricanes in extreme scenarios, which poses considerable challenges for risk management. Cotality's analysis reveals that among various severe convective storm (SCS) scenarios, hail is the predominant factor driving insured losses. In a rare 1-in-500-year event, hail alone might account for about 80% of the projected $71 billion in insured losses related to all SCS threats, including tornadoes and straight-line winds. This scenario translates to roughly $58 billion resulting from hail damage, underscoring the criticality of effective underwriting in these high-risk zones. Even in less severe situations, hailstorms can lead to considerable financial impacts. A major hailstorm occurring once every few decades may generate close to $30 billion in insured losses, comparable to those from significant hurricanes. Jon Schneyer, Cotality’s director of research and content, emphasized that hail has grown into a leading cause of property insurance claims. This trend presents challenges for insurers and recovery teams as they manage the aftermath and restoration efforts in affected areas. In 2025, there were 142 days of damaging hail in the U.S., surpassing previous years. These storms involved hailstones of 2 inches or larger, affecting over 600,000 homes with an estimated reconstruction cost value of $177 billion. The rising financial toll is attributed to both meteorological patterns and increased property developments in high-risk regions. For property professionals, this trend results in higher repair costs, more frequent insurance claims for roofs and exteriors, increased deductibles, and potential policy restrictions or repricing in areas prone to hail. Regional Impacts and Broader SCS Threats Texas was notably affected in 2025, with more than 235,000 homes experiencing damage, particularly in the Texas Triangle region encompassing Dallas-Fort Worth, Houston, Austin, and San Antonio. This area alone holds over $2.2 trillion in reconstruction cost value at risk from hail. Additional states like Wyoming, Oklahoma, Wisconsin, and Kansas also recorded high numbers of impacted properties, emphasizing the widespread nature of this threat. The broader SCS threat also involves risks from tornadoes and damaging winds. Cotality estimates over 76 million homes are at moderate or greater risk from tornadoes, with a reconstruction cost value exceeding $27 trillion. Additionally, about 64 million homes are exposed to strong straight-line winds, with over $23 trillion at stake. These overlapping risks necessitate strategic regulatory compliance requirements and advanced data analytics for insurers, reinsurers, and mortgage risk managers. Access to detailed property-level data, including information on roof age, materials, and maintenance histories alongside local hazard assessments, is crucial. Schneyer noted the importance for the insurance industry of accurately capturing and pricing these risks, particularly given the growing scale and complexity of storm losses as development continues in vulnerable areas.