Severe thunderstorms and hail, traditionally considered “secondary” to other perils, are rapidly becoming an increasingly significant contributor to annual insured losses. As climate patterns shift and exposure grows, understanding and managing these evolving perils is critical to maintaining resilient, profitable portfolios.
This report from Guy Carpenter's International Peril Advisory team, Quantifying Hail Risk for Informed Underwriting and Accumulation Management, describes how Guy Carpenter’s GCAT Risk Rating helps clients stay ahead of this challenge by transforming complex hazard data into actionable loss insights. Our scientifically robust approach delivers location-level loss ratio estimates across a comprehensive range of perils, including severe thunderstorms and hail.
Beyond individual locations, the GCAT’s integrated loss ratio framework enables seamless aggregation of risk across geographies and perils. This capability provides unparalleled clarity for accumulation management, helping to identify and mitigate concentrations of risk. It also supports smarter underwriting decisions by delivering consistent, transparent risk metrics that align with portfolio strategy.