From Cat Model Output to Underwriting Decisions
The model says $40M — now what. How modeled loss becomes rate, retention, and limit decisions, when to override the model, and the questions to ask your carrier.
Catastrophe Modeling
Catastrophe modeling is how insurers and reinsurers quantify natural-hazard risk: vendor and open-source models that convert hazard, exposure, and vulnerability data into probabilistic loss estimates, PML, and accumulation metrics. This section covers modeling methodologies, peril analysis, model governance, and how cat-model output drives reinsurance buying and capital decisions.
Model Blending and Sensitivity Testing in Cat Risk
Never trust one number. How the pros blend vendor models, weight by peril, sensitivity-test key assumptions, and document it all for underwriters and auditors.
Climate-Conditioned Catastrophe Model Catalogs
The past is no longer the catalog. How climate-conditioned event sets change tail estimates, and how to talk about it at renewal without getting lost in the politics.
Secondary Perils in Cat Modeling: SCS, Flood, and Wildfire
Severe convective storms, flood, and wildfire now drive the loss. Why the old models missed them, and what secondary perils mean for your deductibles.
Moody’s RMS and Verisk: Two Catastrophe-Model Lineages, Not Three
AIR is Verisk’s catastrophe-model line, not a third vendor beside Verisk. Moody’s RMS is the other dominant license. KCC, Cotality, Impact Forecasting, and Florida’s public model are separate families.
How to Read an EP Curve: Occurrence vs Aggregate Loss
Your cat report has a curve, not a number. Here is how to read it: occurrence vs aggregate EP, what a 100-year point really means, and why the tail wags the tower.
What Catastrophe Modeling Costs: Fees, Licenses, and Who Pays in 2026
Cat-model economics: enterprise licenses vs per-run pricing, realistic cost ranges, who pays across carriers and brokers, and what the fee actually buys.
Atlantic ACE 92% Below Normal: Quiet CAT Does Not Soften Wind Deductibles
Through Sept. 21, 2026 the Atlantic posted ACE 6.3 — 92% below normal — and zero hurricanes since 1914’s last such date. Treaty and deductible language still assume a storm.
Cat Modeling & Property Risk Pulse: Active Tropical Storm Tracks, Surge Exposure & Commercial P&C Retentions — Tuesday, August 25, 2026
Institutional catastrophe risk intelligence briefing for corporate risk managers, property underwriters, and reinsurance brokers for Tuesday, August 25, 2026. NOAA NHC tropical tracking, severe convective storm loss aggregation, and commercial property underwriting takeaways.
Catastrophe Modeling: The Complete Guide to Cat Risk Assessment for Insurance Professionals (2026)
Catastrophe modeling (cat modelling) estimates the chance a portfolio loses more than X in a year. Four modules: hazard, vulnerability, exposure, financial. Outputs: AAL, OEP/AEP, PML, TVaR. Vendors stay on this slug. Verified 9 Sept 2026.
Scope 3 Supply Chain Data and the Insurance Claims Ecosystem: What the Restoration Carbon Protocol Means for Carriers
Insurance carriers face Scope 3 disclosure requirements reaching into their claims supply chains. The Restoration Carbon Protocol provides per-claim carbon data infrastructure that replaces spend-based proxies for carrier ESG reporting.
Climate Risk and Insurance Pricing in 2026: How Physical Hazards Are Repricing Every Line of Coverage
Climate risk is repricing every line of insurance coverage. This 2026 guide explains how flood, wildfire, hurricane, and heat are reshaping underwriting and pricing.