SIOUX FALLS, IA
Peak mapped hail up to 2.50 inches struck near 7 miles east of Tripp, SD. Other affected states included IA, MN. Verified with 48 NWS warnings and 8 official hail reports.
HailMapr validation score
75.0% from 8 official hail reports
6 reports aligned with the mapped swath and estimated hail size
84.2% from 19 unofficial hail reports
16 reports aligned with the mapped swath and estimated hail size
Storm description
Peak mapped hail up to 2.50 inches struck near 7 miles east of Tripp, SD. Other affected states included IA, MN. Verified with 48 NWS warnings and 8 official hail reports. The HailMapr storm footprint covers about 1925.6 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 75.0%, based on trusted hail reports compared with the mapped hail footprint and predicted hail size. The unofficial HailMapr accuracy score is 84.2%, 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