White Paper
How Convective Storms Are Rewriting the Risk Landscape — and What Property Owners Can Do About It
White Paper Summary
For decades, hurricanes, earthquakes and wildfires grabbed the bulk of the headlines about catastrophic property risk. But in recent years, a different peril has surged to the forefront: severe convective storms, also referred to as severe thunderstorms, including damaging straight‑line winds of 58 mph or greater, large hail with a diameter of 1 inch or greater (about the size of a quarter), and tornadoes. According to Munich Re, severe thunderstorm losses in the United States amounted to $56bn in 2025, of which $42bn was insured – significantly higher than the 10-year average — a figure that would have been almost unimaginable a generation ago. For commercial property owners and their insurers, this shift demands a fundamental rethinking of how risk is assessed and managed.
“Convective storms are no longer a ‘secondary peril,'” said Maurice Marvi, a property loss control expert at Munich Re Specialty — North America.
“The frequency and severity of these events have increased to a point where they are driving some of the largest insured losses we see in any given year. That changes the conversation significantly for anyone with property exposure.”
To learn more about Munich Re, please visit their website.


