Illinois - United States   2026-04-16   Thursday   42.45N, -89.39W

Lake Summerset

Illinois - United States
2026-04-16

Flood Warning issued April 16 at 9:56PM CDT until April 18 at 1:00AM CDT by NWS Milwaukee/Sullivan WI

Issue date: 2026-04-17T02:56+00:00

...The Flood Warning is extended for the following rivers in Wisconsin... Baraboo River Near Baraboo affecting Columbia and Sauk Counties. Fox River Lower At Waukesha affecting Waukesha County. Milwaukee River Near Cedarburg affecting Ozaukee County. Root River At Franklin affecting Milwaukee County. ...The Flood Warning continues for the following rivers in Wisconsin...Illinois... Root River Canal At Raymond affecting Racine County. Sugar River At Brodhead affecting Green, Winnebago and Rock Counties. Turtle Creek Near Clinton affecting Winnebago and Rock Counties. Rock River At Fort Atkinson affecting Jefferson County. Rock River At Afton affecting Winnebago and Rock Counties. Rock River At Jefferson affecting Jefferson County. Rock River At Watertown affecting Jefferson County. ROCK RIVER near LEBANON-3 E-HWY MM BRIDGE affecting Dodge County. Fox River Near Berlin affecting Green Lake County. Crawfish River At Milford affecting Jefferson County. Wisconsin River At Wisconsin Dells affecting Columbia and Sauk Counties. Wisconsin River At Portage affecting Columbia County. * WHAT...Minor flooding is occurring and minor flooding is forecast. * WHERE...Sugar River at Brodhead. * WHEN...Until early Saturday morning. * IMPACTS...At 6.0 feet, Some roads are flooded about 6 miles downstream in Avon Township of Rock County, including Beloit Newark Rd. In the Avon Bottoms area of Rock County, flooding is occurring in Sugar River Park. In Illinois, Winslow Rd is threatened near the river between Durand and Shirland. Low lying areas of Sugar Shores Camping Resort may be inundated. * ADDITIONAL DETAILS... - At 9:00 PM CDT Thursday the stage was 5.9 feet. - Bankfull stage is 4.5 feet. - Recent Activity...The maximum river stage in the 24 hours ending at 9:00 PM CDT Thursday was 6.2 feet. - Forecast...The river is expected to fall below flood stage tomorrow evening and continue falling to 1.9 feet Thursday, April 23. - Flood stage is 5.0 feet. - Flood History...This crest compares to a previous crest of 5.9 feet on 07/26/2010. - http://www.weather.gov/safety/flood

Flood Warning issued April 16 at 9:56PM CDT by NWS Milwaukee/Sullivan WI

Issue date: 2026-04-17T02:56+00:00

...The Flood Warning is extended for the following rivers in Wisconsin... Baraboo River Near Baraboo affecting Columbia and Sauk Counties. Fox River Lower At Waukesha affecting Waukesha County. Milwaukee River Near Cedarburg affecting Ozaukee County. Root River At Franklin affecting Milwaukee County. ...The Flood Warning continues for the following rivers in Wisconsin...Illinois... Root River Canal At Raymond affecting Racine County. Sugar River At Brodhead affecting Green, Winnebago and Rock Counties. Turtle Creek Near Clinton affecting Winnebago and Rock Counties. Rock River At Fort Atkinson affecting Jefferson County. Rock River At Afton affecting Winnebago and Rock Counties. Rock River At Jefferson affecting Jefferson County. Rock River At Watertown affecting Jefferson County. ROCK RIVER near LEBANON-3 E-HWY MM BRIDGE affecting Dodge County. Fox River Near Berlin affecting Green Lake County. Crawfish River At Milford affecting Jefferson County. Wisconsin River At Wisconsin Dells affecting Columbia and Sauk Counties. Wisconsin River At Portage affecting Columbia County. * WHAT...Minor flooding is occurring and moderate flooding is forecast. * WHERE...Rock River at Afton. * WHEN...Until further notice. * IMPACTS...At 11.5 feet, Water surrounds at least 2 homes near the river in the Afton area. Numerous secondary roads in the Afton area are closed to traffic. Floodwaters affect South River Road on the south side of Janesville. Traxler Park off of Memorial Drive in Janesville is flooded. * ADDITIONAL DETAILS... - At 8:00 PM CDT Thursday the stage was 9.1 feet. - Bankfull stage is 8.0 feet. - Recent Activity...The maximum river stage in the 24 hours ending at 8:00 PM CDT Thursday was 9.1 feet. - Forecast...The river is expected to rise to 11.5 feet Thursday, April 23. Additional rises are possible thereafter. - Flood stage is 9.0 feet. - Flood History...This crest compares to a previous crest of 11.5 feet on 03/25/1918. - http://www.weather.gov/safety/flood

Flood Warning issued April 16 at 9:02PM CDT until April 17 at 7:00PM CDT by NWS Chicago IL

Issue date: 2026-04-17T02:02+00:00

...The Flood Warning continues for the following rivers in Illinois... Kishwaukee River near Perryville affecting Winnebago County. Kishwaukee River at Belvidere affecting Boone and Winnebago Counties. For the Kishwaukee River...including Belvidere, Perryville...Minor flooding is forecast. * WHAT...Minor flooding is forecast. * WHERE...Kishwaukee River from County Line Road downstream to confluence with South Branch Kishwaukee River, including the Belvidere gauge. * WHEN...Until Friday evening. * IMPACTS...At 9.0 feet, Boone-McHenry County Line Road threatened. Low-lying areas are threatened in Belvidere Park. * ADDITIONAL DETAILS... - At 8:30 PM CDT Thursday the stage was 9.0 feet. - Recent Activity...The maximum river stage in the 24 hours ending at 8:30 PM CDT Thursday was 9.0 feet. - Forecast...The river will remain near flood stage through Friday evening and then is expected to slowly fall. - Flood stage is 9.0 feet. - http://www.weather.gov/safety/flood