Severe convective storms produced more insured losses than hurricanes or any other natural peril in 2025, according to new analysis from climate risk firm First Street. The shift marks a departure from long-standing assumptions that coastal hurricane exposure dominated homeowner insurance costs. Data show these storms, which include tornadoes, large hail and damaging straight-line winds, now drive the largest share of global catastrophe payouts.
Study Findings on Losses
First Street’s assessment, drawing on data from risk consultant Aon, places 2025 insured losses from severe convective storms ahead of cyclones for the first time in recent records. Over the past 25 years, global insurance payouts tied to these events reached $794 billion. In 2025 alone, combined insured and uninsured losses hit $82 billion worldwide, with $68 billion concentrated in the United States. The pattern holds across multiple years. Severe convective storms have accounted for roughly one-third of global natural disaster economic losses in recent periods. This volume exceeds losses from flooding, earthquakes and drought combined in several annual tallies.
Impact on Insurance Premiums
Homeowners face direct consequences through rising premiums. Insurers have adjusted rates upward in response to repeated large payouts from hail, wind and tornado damage. States far from coastlines, including parts of the Midwest and Plains, now see elevated risk scores that previously applied mainly to hurricane-prone regions. The change affects policy availability as well. Some carriers have tightened underwriting standards or exited markets where convective storm losses cluster. Homeowners in these areas report longer search times for coverage and higher deductibles on new policies.
Comparison of Perils
| Peril | 2025 Insured Losses (Global) | Primary U.S. Exposure |
|---|---|---|
| Severe Convective Storms | Highest | Nationwide, especially Midwest and South |
| Cyclones/Hurricanes | Second | Coastal states |
| Flooding | Lower | Varies by region |
The table illustrates how convective storms have moved from secondary to primary status in loss rankings. This reordering changes how insurers model portfolios and price individual policies.
Stakeholders and Next Steps
Homeowners bear the immediate financial pressure through higher monthly costs. Insurers must recalibrate capital reserves and reinsurance contracts. State regulators review rate filings that reflect the updated loss data. Lenders and real estate markets also monitor the trend, as elevated insurance expenses can influence property values and mortgage qualification. Mitigation measures such as fortified roofing, impact-resistant windows and improved drainage can lower individual risk scores in some models. Property owners who invest in these upgrades sometimes qualify for premium credits, though availability varies by carrier and state. The broader trend points to continued pressure on household budgets wherever severe storms occur with regularity.
