Nationwide Daily Hail, Wind & Tornado Map - May 18, 2026
Peak mapped hail up to 2.79 inches struck near Sheridan, MO; damaging wind peaked at 106 mph near 3 miles east of Jarbalo, KS; tornado reports affected near 2 miles south of Wesley, IA. Other affected states included AR, CO, FL, IL, IN, KY and more. Verified with 53 official hail reports.
HailMapr validation score
64.2% from 53 official hail reports
34 reports aligned with the mapped swath and estimated hail size
79.3% from 58 unofficial hail reports
46 reports aligned with the mapped swath and estimated hail size
Storm description
Peak mapped hail up to 2.79 inches struck near Sheridan, MO; damaging wind peaked at 106 mph near 3 miles east of Jarbalo, KS; tornado reports affected near 2 miles south of Wesley, IA. Other affected states included AR, CO, FL, IL, IN, KY and more. Verified with 53 official hail reports. The HailMapr storm footprint covers about 26432.9 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 64.2%, based on trusted hail reports compared with the mapped hail footprint and predicted hail size. The unofficial HailMapr accuracy score is 79.3%, 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