Nationwide Daily Hail, Wind & Tornado Map - May 17, 2026
Peak mapped hail up to 3.50 inches struck near 1 mile west of Palmer, NE; damaging wind peaked at 104 mph near Concordia, KS; tornado reports affected near 2 miles west of Davis, SD. Other affected states included AR, CO, FL, GA, IA, ME and more. Verified with 49 official hail reports.
HailMapr validation score
61.2% from 49 official hail reports
30 reports aligned with the mapped swath and estimated hail size
72.6% from 95 unofficial hail reports
69 reports aligned with the mapped swath and estimated hail size
Storm description
Peak mapped hail up to 3.50 inches struck near 1 mile west of Palmer, NE; damaging wind peaked at 104 mph near Concordia, KS; tornado reports affected near 2 miles west of Davis, SD. Other affected states included AR, CO, FL, GA, IA, ME and more. Verified with 49 official hail reports. The HailMapr storm footprint covers about 28159.8 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 61.2%, based on trusted hail reports compared with the mapped hail footprint and predicted hail size. The unofficial HailMapr accuracy score is 72.6%, 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