Illinois - United States   2026-04-16   Thursday   42.35N, -89.04W

Machesney Park

Illinois - United States
2026-04-16

Flood Warning issued April 16 at 7:40PM CDT until April 18 at 9:15AM CDT by NWS Milwaukee/Sullivan WI

Issue date: 2026-04-17T00:40+00:00

...The Flood Warning continues for the following rivers in Wisconsin...Illinois... Turtle Creek Near Clinton affecting Winnebago and Rock Counties. Wisconsin River At Wisconsin Dells affecting Columbia and Sauk Counties. Wisconsin River At Portage affecting Columbia County. Root River At Franklin affecting Milwaukee County. Root River Canal At Raymond affecting Racine County. Sugar River At Brodhead affecting Green, Winnebago and Rock Counties. * WHAT...Minor flooding is occurring and minor flooding is forecast. * WHERE...Turtle Creek near Clinton. * WHEN...Until late Saturday morning. * IMPACTS...At 9.0 feet, Smith Road threatened in Tiffany. Portions of Sweet Allyn Park in Shopiere inundated. * ADDITIONAL DETAILS... - At 7:00 PM CDT Thursday the stage was 9.0 feet. - Bankfull stage is 6.0 feet. - Recent Activity...The maximum river stage in the 24 hours ending at 7:00 PM CDT Thursday was 9.6 feet. - Forecast...The river is expected to fall below flood stage late tomorrow evening and continue falling to 4.6 feet Thursday, April 23. - Flood stage is 8.0 feet. - Flood History...This crest compares to a previous crest of 9.0 feet on 01/31/1988. - http://www.weather.gov/safety/flood

Flood Warning issued April 16 at 7:40PM CDT until April 18 at 4:00AM CDT by NWS Milwaukee/Sullivan WI

Issue date: 2026-04-17T00:40+00:00

...The Flood Warning continues for the following rivers in Wisconsin...Illinois... Turtle Creek Near Clinton affecting Winnebago and Rock Counties. Wisconsin River At Wisconsin Dells affecting Columbia and Sauk Counties. Wisconsin River At Portage affecting Columbia County. Root River At Franklin affecting Milwaukee County. Root River Canal At Raymond affecting Racine County. Sugar River At Brodhead affecting Green, Winnebago and Rock Counties. * 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 7:00 PM CDT Thursday the stage was 6.0 feet. - Bankfull stage is 4.5 feet. - Recent Activity...The maximum river stage in the 24 hours ending at 7:00 PM CDT Thursday was 6.2 feet. - Forecast...The river is expected to fall below flood stage late tomorrow evening and continue falling to 2.0 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

Hydrologic Outlook issued April 16 at 2:19PM CDT by NWS Chicago IL

Issue date: 2026-04-16T19:19+00:00

ESFLOT Additional thunderstorms are expected Friday afternoon and Friday night across northern Illinois and northwest Indiana. Atmospheric conditions are favorable for some of these storms to produce locally heavy rainfall. Many rivers across northern Illinois and northwest Indiana remain elevated. Soil moisture also remains elevated in many areas, especially in northern Illinois along the Wisconsin border. Thus, any heavy rainfall that occurs could lead to flooding of rivers, creeks, urban and low-lying areas. Rivers such as the Rock, Fox and Des Plaines which are already in flood in some locations, may be especially prone to rainfall which could exacerbate ongoing flooding. This outlook means that elevated water levels and potential impacts are possible, but not yet certain. Persons should closely monitor forecasts including the possibility of flood watches, warnings, and advisories. This outlook will be updated by Friday morning.