May 17, 2000
The second round of adverse weather on the 17th started off as a large hail and damaging wind event in Sauk County, but quickly changed to a heavy rain and flash flooding event as individual cells became more numerous and clusters moved east/southeast. Training echos were common which led to flash flooding. Damaging straight-line winds toppled large trees in Sauk and Columbia Counties while hail up to 1.00 inch in diameter also fell. However, from then on the storms became prolific rain-produce
Source: NOAA National Weather Service Storm Events Database (event 5143930). Narrative written by NWS staff at the time of the event.
This event is one of many recorded floods in Waukesha County. See the full FEMA flood zone map, NFIP claim totals, and disaster history for the area.