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Wisconsin storm reports for August 18, 2026

NOAA recorded 4 hail reports, 24 wind reports and 1 tornado report in Wisconsin on August 18, 2026.

in Wisconsin
29
Storm reports
1 WNW Onalaska, La Crosse County, WI
1.25 in
Largest hail
2 NNE French Island, La Crosse County, WI
67 mph
Highest gust
1
Tornado reports
Sources: NOAA/NWS Storm Prediction Center reports; radar hail estimates from NOAA MRMS; gust estimates from NOAA URMA; damage surveys from the NWS Damage Assessment Toolkit

Hail, inches

  • 0.75
  • 1
  • 1.5
  • 2
  • 2.5
  • 3+

Dots: reports. Shading: radar estimate.

  • Wind report
  • Estimated gusts, 50 to 90 mph
  • Tornado and its path
  • Surveyed tornado path

Source: NOAA/NWS Storm Prediction Center, preliminary storm reports. NOAA revises recent reports for several weeks. Report day: 12:00 UTC on August 18, 2026 to 12:00 UTC the next day. Times are Central.

Select a dot or a path for the report. NWS survey teams walked the shaded paths after the storm; each is drawn at the widest width they found, so it can look wider than the damage at any one spot. Gust lines are estimates: the highest gust of the day in NOAA's hourly 2.5 km wind analysis (URMA), which fills in between weather stations. They aren't measurements at any building.

Reports by hour

Hail4, most at 3 PM

Wind24, most at 6 PM

Tornado1, most at 6 PM

Reports per hour, Central time. Each row has its own scale.

Every report

Source: NOAA/NWS Storm Prediction Center.

TimeRatingWherePath
6:33 PMNot rated1 SSW Hubertus, Washington County, WINot surveyed

Cities with reports nearby

Reports within 15 miles of the center of each city we track.

CityLargest hailHighest gustTornado reports
Milwaukee, WINoneNone0

Reports are what observers recorded near a location, not a complete record of every storm. They don’t describe conditions at any building.