FLASH Climate AI Launches First Deep-Studying Hail Prediction Mannequin With Excessive-Decision Forecasting
FLASH Climate AI introduced the launch of its 1-Hour Hail Swath Prediction Mannequin, the primary high-resolution hail prediction mannequin. The deep-learning system forecasts hail measurement and arrival time at 1-kilometer decision, refreshed each 5 minutes, with predictions extending as much as 55 minutes into the longer term.
Skilled on 4 years of U.S. convective storm knowledge spanning 2021 via 2024, the mannequin produces deterministic forecasts of hail measurement in inches or millimeters, predicting all the way down to the hundredth of an inch. A companion Hail Arrival Time product estimates when quarter-size or bigger hail will attain any location within the forecast window. Following a month of beta testing throughout a number of extreme climate occasions, the mannequin has demonstrated important accuracy and operational usability, with verification examples out there on request.
The product begins rolling out this week through API and contained in the FLASH Climate Command Heart (WCC), the corporate’s web-based operations platform, with native integration into the FLASH cell app following within the coming weeks.
“For the primary time, insurers, fleet operators, and infrastructure managers have a instrument that does not simply let you know a storm is coming; it tells you precisely the place hail will fall, how massive it will likely be, and offers you sufficient lead time to behave,” mentioned Jason Deese, founder and CEO. “That is not an incremental enchancment. That is a elementary shift in how the world manages hail threat.”
Why Hail Prediction Issues
Based on Cotality’s 2026 Extreme Convective Storm Danger Report, greater than 43.5 million U.S. houses (roughly 42 % of all analyzed properties) now sit in reasonable or better hail threat classes, representing 17.8 trillion {dollars} in reconstruction price worth. The identical report concludes {that a} single extreme hailstorm is now able to producing insured losses approaching 30 billion {dollars} at a 50-year return interval, rivaling the monetary influence of a Class 4 hurricane. In 2025 alone, State Farm paid out greater than 5.6 billion {dollars} in hail claims, and Cotality recorded 142 days of damaging hail throughout america, the best whole in over 20 years.
Publicity is concentrated, however not regional. Texas leads with 3.1 trillion {dollars} in at-risk reconstruction worth, whereas the better Chicago metro now ranks as probably the most financially uncovered metropolis within the nation at 1.0 trillion {dollars}. Losses minimize throughout property insurance coverage, roofing, development, agriculture, automotive fleets, photo voltaic vitality, and outside sports activities.
Till now, the business has relied nearly solely on radar-based detection, which solely confirms hail after it has already begun to fall, or on broad convective outlooks that lack the precision required to guard a particular job website, fleet yard, photo voltaic array, golf course, or rooftop. The FLASH 1-Hour Hail Swath Prediction Mannequin closes that hole with location-specific, minute-by-minute forecasts.
“Hail is without doubt one of the hardest convective hazards to forecast at excessive decision. Getting measurement and arrival time proper at a 1-kilometer grid, refreshed each 5 minutes, is a leap ahead in convective forecasting. After a month in beta, I belief this mannequin the way in which I belief our proprietary lightning prediction, and that is not a comparability I make calmly.”
