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Wisconsin storm reports for December 15, 2021

NOAA recorded 1 hail report, 46 wind reports and 9 tornado reports in Wisconsin on December 15, 2021.

in Wisconsin
56
Storm reports
Near 44.03, -91.27, WI
1.25 in
Largest hail
About 38 miles from Minneapolis, MN
70 mph
Highest gust
Highest rating EF2, near 44.50, -90.80, WI
9
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
  • Surveyed wind damage

Source: NOAA/NWS Storm Prediction Center, final severe weather database (from NOAA's Storm Data). Report day: 12:00 UTC on December 15, 2021 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

Hail1, most at 8 PM

Wind46, most at 9 PM

Tornado9, most at 9 PM

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

Every report

Source: NOAA/NWS Storm Prediction Center.

TimeRatingWherePath
8:23 PMEF0About 51 miles from Rochester, MN0.74 mi long, 25 yd wide
8:53 PMEF1Near 44.50, -91.18, WI2.68 mi long, 70 yd wide
9:00 PMEF0Near 44.60, -91.08, WI6.71 mi long, 75 yd wide
9:02 PMEF0Near 44.90, -91.30, WI5.35 mi long, 75 yd wide
9:05 PMEF2Near 44.50, -90.80, WI3.13 mi long, 250 yd wide
9:07 PMEF2Near 44.51, -90.75, WI2.8 mi long, 250 yd wide
9:16 PMEF2Near 44.60, -90.58, WI1.13 mi long, 50 yd wide
9:16 PMEF2Near 44.90, -90.98, WI7.41 mi long, 75 yd wide
9:22 PMEF1Near 44.77, -90.66, WI0.9 mi long, 50 yd wide

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