Nationwide Daily Hail, Wind & Tornado Map - May 15, 2026
Peak mapped hail up to 3.50 inches struck near Kanawha, IA; damaging wind peaked at 97 mph near 1 mile west-southwest of Seagraves, TX; tornado reports affected near 4 miles east-southeast of Benton, WI. Other affected states included FL, IL, KS, MN, MO, MS and more. Verified with 26 official hail reports.
HailMapr validation score
84.6% from 26 official hail reports
22 reports aligned with the mapped swath and estimated hail size
78.6% from 28 unofficial hail reports
22 reports aligned with the mapped swath and estimated hail size
Storm description
Peak mapped hail up to 3.50 inches struck near Kanawha, IA; damaging wind peaked at 97 mph near 1 mile west-southwest of Seagraves, TX; tornado reports affected near 4 miles east-southeast of Benton, WI. Other affected states included FL, IL, KS, MN, MO, MS and more. Verified with 26 official hail reports. The HailMapr storm footprint covers about 7700.3 square miles and updates as new hail swaths, wind reports, and tornado reports are appended to the national live map. The official HailMapr accuracy score is 84.6%, based on trusted hail reports compared with the mapped hail footprint and predicted hail size. The unofficial HailMapr accuracy score is 78.6%, giving a separate read on public and lower-confidence hail reports without mixing them into the official score.
Storm snapshot
What you get
- HailMapr Core Replay with step-by-step hail-track playback
- Heatmap and polygon package for the event window
- Trusted hail report validation overlay
- Owned access that remains even if subscriptions end