Moody’s releases Version 25 of North Atlantic Hurricane Models for insurance applications

Moody’s, a provider of risk modelling and analytics for the financial and insurance sectors, announced that Version 25 of its RMS North Atlantic Hurricane Models has been approved by the Florida Commission on Hurricane Loss Projection Methodology (FCHLPM).

The certification, granted on June 12, 2025, allows the model to be used in residential insurance rate filings submitted to the Florida Office of Insurance Regulation (FLOIR).

This latest release gives insurers and reinsurers access to updated tools for understanding and managing hurricane risk across North America.

Available through both the Risk Modeler application on Moody’s Intelligent Risk Platform and through RiskLink, Version 25 brings new capabilities while maintaining support for earlier model versions—specifically Versions 18, 18.1, 21, 22, 23, and 24—allowing users flexibility in meeting regulatory and portfolio management needs.

Version 25 reflects newly available storm and loss data from the 2023 and 2024 hurricane seasons, incorporating updated geocoding, revised event frequency estimates, and improved historical storm reconstructions. The release also includes targeted enhancements to hazard modelling, vulnerability assumptions, and post-event loss amplification, informed by recent storms and industry feedback.

To support the model’s accuracy, Moody’s incorporated an additional $6 billion in detailed claims data from 14 landfalling events since 2016. This addition brings the total dataset used to validate the hurricane models to $75 billion in individual company policy-level losses—a volume unmatched in the industry for this type of modelling.

In coordination with this update, Moody’s also released an aligned revision to the US. Inland Flood High-Definition (HD) Model to ensure consistency across its suite of catastrophe modelling tools.

The hurricane model now includes additional simulation sets for long-term and medium-term event rate scenarios, as well as updated storm surge footprints based on new and revised historical data.

The FCHLPM certification for Version 25 will remain valid until November 1, 2027. The model is now available for use on both Risk Modeler and RiskLink.

Jeff Waters, Director, Moody’s RMS North Atlantic Hurricane Models, commented: “Version 25 allows Moody’s to remain at the forefront of catastrophe model science and innovation. Underscoring these efforts is the extensive library of more than $75 billion in trended, individual company, detailed claims data used for calibration and validation purposes, including a sizable portion from landfalling storms since 2016. Incorporating data and learnings from these recent events is critical to ensuring the model continues to reflect the latest market conditions.”

Matthew Nielsen, Senior Vice President – Regulatory Affairs, Moody’s, added: “We are proud to continue our nearly 30-year track record of meeting FCHLPM requirements by gaining FCHLPM certification under the latest standards. This important benchmark underscores the continued quality and reliability of our North Atlantic Hurricane Models for the market, based on industry-leading science, data, methods, engineering, and software.”

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