Storm detail

N. WEBSTER/NORTHERN, IN

Peak mapped hail up to 1.07 inches struck near Lerna, IL; damaging wind peaked at 104 mph near 1 mile east of Woodbury, MI. Other affected states included IN, OH. Verified with 187 NWS warnings and 2 hail reports.

Affected statesIL, IN, MI, OH
Peak hail1.07 in
Reports0 official · 2 unofficial
Storm attributesHail · Wind
Single-map price$59.99
Core ReplayIncluded
Includes HailMapr Core Replay for step-by-step storm playback across the event window.

HailMapr validation score

Official score Pending

No official score yet

No official hail reports are available for scoring yet.

Unofficial score 0.0%

0.0% from 2 unofficial hail reports

0 reports aligned with the mapped swath and estimated hail size

Storm description

Peak mapped hail up to 1.07 inches struck near Lerna, IL; damaging wind peaked at 104 mph near 1 mile east of Woodbury, MI. Other affected states included IN, OH. Verified with 187 NWS warnings and 2 hail reports. The HailMapr storm footprint covers about 97.6 square miles and updates as new hail swaths, wind reports, and tornado reports are appended to the national live map. The unofficial HailMapr accuracy score is 0.0%, giving a separate read on public and lower-confidence hail reports without mixing them into the official score.

Storm snapshot

Date windowMay 18, 2026 8:54 AM to May 18, 2026 5:30 PM CST
Mapped area97.6 sq mi
Statusready

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