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Storm detail

Nationwide Daily Hail, Wind & Tornado Map - August 18, 2026

Hail as large as 2.50 inches was reported near Cedar Rapids, NE. Wind up to 91 mph was reported near Grand Island Airport, NE. A tornado was reported near 1 mile south-southwest of Hubertus, WI. The storm had 17 official hail reports.

Affected statesAL, AR, CO, FL, GA, IA, ID, KS, LA, MI, MN, MO, MS, MT, NC, NE, NM, SD, UT, WI, WY
Peak hail3.0 in
Reports17 official · 26 unofficial
Storm attributesHail · Wind · Tornado
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Core ReplayIncluded
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Includes HailMapr Core Replay for step-by-step storm playback across the event window.

HailMapr validation score

Official score 76.5%

76.5% from 17 official hail reports

13 reports aligned with the mapped swath and estimated hail size

Unofficial score 61.5%

61.5% from 26 unofficial hail reports

16 reports aligned with the mapped swath and estimated hail size

Storm description

Hail as large as 2.50 inches was reported near Cedar Rapids, NE. Wind up to 91 mph was reported near Grand Island Airport, NE. A tornado was reported near 1 mile south-southwest of Hubertus, WI. The storm had 17 official hail reports. The affected area shown on the map covers about 11263.4 square miles.

State storm details

Storm snapshot

Date windowAug 17, 2026 10:00 PM to Aug 19, 2026 1:45 AM CST
Mapped area11263.4 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