Public Information Statement
Issued by NWS Milwaukee/Sullivan, WI
Issued by NWS Milwaukee/Sullivan, WI
150 NOUS43 KMKX 292002 PNSMKX WIZ046-047-051-052-056>060-062>072-300815- Public Information Statement National Weather Service Milwaukee/Sullivan WI 302 PM CDT Wed Apr 29 2026 ...NWS Damage Surveys for 4/17/26 Tornado Event... .Overview...A pair of tornadic supercell thunderstorms tracked from far northern Illinois on into south central and southeast Wisconsin during the late evening hours. The supercell thunderstorms merged over Rock County, where a number of brief tornadoes were confirmed by storm chasers and lofted damage. Previously, the track east of Janesville was plotted as being one continuous tornado over toward Richmond. However, after viewing storm chaser reports and having large areas without any damage, have broken that one path into three: La Prairie, Emerald Grove and Richmond. As the storm churned to the east, it formed a squall line, similar to the transition that occurred the previous Tuesday night. Numerous mesovorts developed along this line and produced tornadoes and high wind damage. 10 total tornadoes occurred: 6 EF-1s and 4 EF-0s. .La Prairie... Rating: EF1 Estimated Peak Wind: 90 mph Path Length /statute/: 1.91 miles Path Width /maximum/: 75 yards Fatalities: 0 Injuries: 0 Start Date: 04/17/2026 Start Time: 06:02 PM CDT Start Location: 5 NW Clinton / Rock County / WI Start Lat/Lon: 42.6062 / -88.9434 End Date: 04/17/2026 End Time: 06:05 PM CDT End Location: 5 SE Janesville / Rock County / WI End Lat/Lon: 42.6327 / -88.9345 Survey Summary: Brief tornado that caused damage near Maple Ln southeast of Janesville. Storm chaser video confirmed a brief tornado in this area. Damage further west and east of this point is from rear flank downdraft. .Emerald Grove... Rating: EF1 Estimated Peak Wind: 100 mph Path Length /statute/: 2.07 miles Path Width /maximum/: 100 yards Fatalities: 0 Injuries: 0 Start Date: 04/17/2026 Start Time: 06:05 PM CDT Start Location: 6 ESE Janesville / Rock County / WI Start Lat/Lon: 42.6494 / -88.9028 End Date: 04/17/2026 End Time: 06:10 PM CDT End Location: 7 N Clinton / Rock County / WI End Lat/Lon: 42.6598 / -88.8648 Survey Summary: Brief tornado went through Emerald Grove, destroying a barn and causing damage to an antique store. Significant tree damage along the path as well with debris lofted well to the ENE from the structures. .Richmond... Rating: EF1 Estimated Peak Wind: 100 mph Path Length /statute/: 4.41 miles Path Width /maximum/: 75 yards Fatalities: 0 Injuries: 0 Start Date: 04/17/2026 Start Time: 06:15 PM CDT Start Location: 8 N Clinton / Rock County / WI Start Lat/Lon: 42.6732 / -88.8419 End Date: 04/17/2026 End Time: 06:21 PM CDT End Location: 5 NNW Darien / Walworth County / WI End Lat/Lon: 42.6742 / -88.7559 Survey Summary: Multivortex tornado documented southwest of Richmond. Originally thought it may go up toward Richmond, but think that that damage was downburst wind related. Multiple sheds with sheet metal damage along County Highway M before entering Walworth County. .Delavan 1... Rating: EF1 Estimated Peak Wind: 100 mph Path Length /statute/: 2.98 miles Path Width /maximum/: 75 yards Fatalities: 0 Injuries: 0 Start Date: 04/17/2026 Start Time: 06:39 PM CDT Start Location: 2 NNW Darien / Walworth County / WI Start Lat/Lon: 42.6362 / -88.7222 End Date: 04/17/2026 End Time: 06:46 PM CDT End Location: 2 W Delavan / Walworth County / WI End Lat/Lon: 42.6322 / -88.6672 Survey Summary: The tornado appeared to start north of School Section Rd and west of Old 89 Rd with mainly tree damage going to the east-northeast. The tornado then tracked along near State Road 11 going east toward Delavan. About 4 farmsteads had damage to them, including one empty silo that was blown down from about halfway up. The tornado then continued east-southeast along Hwy 11 and ended near Redwood Ct on the west side of Delavan where it caused some tree damage. .Delavan 2... Rating: EF1 Estimated Peak Wind: 100 mph Path Length /statute/: 3.07 miles Path Width /maximum/: 75 yards Fatalities: 0 Injuries: 0 Start Date: 04/17/2026 Start Time: 06:43 PM CDT Start Location: 3 WNW Delavan / Walworth County / WI Start Lat/Lon: 42.6509 / -88.6897 End Date: 04/17/2026 End Time: 06:46 PM CDT End Location: 2 NNW Delavan / Walworth County / WI End Lat/Lon: 42.6645 / -88.6396 Survey Summary: Tornado appeared to begin along Turtle Creek west of Klug Rd and south of County Road M. The tornado destroyed an open facing barn shed along Klug Rd. It then tracked to the northeast and caused damage to 3 barns, a garage and a house along County Road P. It then continued to the northeast and crossed Dam Rd before ending near Turtle Creek again. .Honey Lake... Rating: EF0 Estimated Peak Wind: 75 mph Path Length /statute/: 1.85 miles Path Width /maximum/: 50 yards Fatalities: 0 Injuries: 0 Start Date: 04/17/2026 Start Time: 07:22 PM CDT Start Location: 4 WNW Burlington / Walworth County / WI Start Lat/Lon: 42.6982 / -88.3661 End Date: 04/17/2026 End Time: 07:25 PM CDT End Location: 3 W Burlington / Walworth County / WI End Lat/Lon: 42.6855 / -88.335 Survey Summary: The tornado began along Spring Prairie Road and moved to the southeast. This tornado had an intermittent path with a few trees uprooted, some shingles peeled from the south side of a roof, another roof peeled back on the southeast corner, and siding damage to a garage. The track continued to the southeast with several limbs snapped from the tops of trees, ending near Old County Highway DD north of Highway 11. .NW Waterford... Rating: EF0 Estimated Peak Wind: 70 mph Path Length /statute/: 1.43 miles Path Width /maximum/: 50 yards Fatalities: 0 Injuries: 0 Start Date: 04/17/2026 Start Time: 07:32 PM CDT Start Location: 3 WNW Waterford North / Racine County / WI Start Lat/Lon: 42.8096 / -88.2781 End Date: 04/17/2026 End Time: 07:36 PM CDT End Location: 2 NW Waterford North / Racine County / WI End Lat/Lon: 42.8134 / -88.2506 Survey Summary: Tornado started in a mainly open field to west of Highway 83. A few branches were downed. Along the intermittent path, multiple trees were downed in different directions. A port-a-potty was displaced and pushed over. The tornado continued to northeast into in accessible field. No damage noted along Marsh Rd. .Muskego Lake... Rating: EF0 Estimated Peak Wind: 70 mph Path Length /statute/: 0.62 miles Path Width /maximum/: 70 yards Fatalities: 0 Injuries: 0 Start Date: 04/17/2026 Start Time: 07:52 PM CDT Start Location: 2 N Wind Lake / Waukesha County / WI Start Lat/Lon: 42.8548 / -88.1492 End Date: 04/17/2026 End Time: 07:55 PM CDT End Location: 2 SSW Muskego / Waukesha County / WI End Lat/Lon: 42.8601 / -88.1394 Survey Summary: The tornado began over a farm field where a few small limbs were downed. The tornado continued to the northeast, snapping a few trees and downing several large limbs. Further to the northeast, the view was not accessible with the tornado ending southwest of Big Muskego Lake, south of the Big Muskego Lake Wildlife area. .TMKE South... Rating: EF0 Estimated Peak Wind: 80 mph Path Length /statute/: 3.67 miles Path Width /maximum/: 50 yards Fatalities: 0 Injuries: 0 Start Date: 04/17/2026 Start Time: 07:55 PM CDT Start Location: 5 ESE Wind Lake / Racine County / WI Start Lat/Lon: 42.7898 / -88.0732 End Date: 04/17/2026 End Time: 08:00 PM CDT End Location: 4 S Franklin / Racine County / WI End Lat/Lon: 42.8298 / -88.0324 Survey Summary: Tornado started near Raynor Ave and tracked to the northeast while crossing 5 Mile and 6 Mile Rd before ending near 7 Mile Rd. Most damage was minor but some sheet metal was lofted from a barn. Tornado tracked just to the east of the Milwaukee Airport Terminal Doppler radar. .TMKE North... Rating: EF1 Estimated Peak Wind: 100 mph Path Length /statute/: 5.23 miles Path Width /maximum/: 75 yards Fatalities: 0 Injuries: 0 Start Date: 04/17/2026 Start Time: 07:56 PM CDT Start Location: 4 E Wind Lake / Racine County / WI Start Lat/Lon: 42.8151 / -88.0808 End Date: 04/18/2026 End Time: 08:05 PM CDT End Location: 2 SSE Franklin / Milwaukee County / WI End Lat/Lon: 42.8514 / -87.9912 Survey Summary: Tornado started near 6 Mile Rd west of Raynor Ave and tracked to the northeast, ending in southern Milwaukee county. Possible that this tornado merged with the other one directly to the south. && EF Scale: The Enhanced Fujita Scale classifies tornadoes into the following categories: EF0.....65 to 85 mph EF1.....86 to 110 mph EF2.....111 to 135 mph EF3.....136 to 165 mph EF4.....166 to 200 mph EF5.....>200 mph NOTE: The information in this statement is preliminary and subject to change pending final review of the events and publication in NWS Storm Data. $$ Halbach/BMiller/Gagan/Patterson