Secondary perils take the lead as SCS and LA wildfires dominate 2025 cat bill

To address this, Moody’s has released its RMS US Severe Convective Storm HD Models, launched in late 2025. The models use high‑resolution, physics‑based simulations and a large claims‑calibrated vulnerability dataset capturing more than $55 billion in industry claims. For insurers, the intent is to better capture multi‑state outbreak scenarios, refine peril‑specific appetites and structure reinsurance beyond traditional single‑state or single‑event views of risk.