Dense Fog Advisory issued April 17 at 6:01AM CDT until April 17 at 10:00AM CDT by NWS Chicago IL
Issue date: 2026-04-17T11:01+00:00
* WHAT...Visibility one quarter mile or less in dense fog. * WHERE...In Illinois, DuPage, Kane, Lake IL, McHenry, and Northern Cook Counties. In Indiana, Porter County. * WHEN...Until 10 AM CDT this morning. * IMPACTS...Low visibility could make driving conditions hazardous.
Flood Warning issued April 17 at 5:49AM CDT by NWS Milwaukee/Sullivan WI
Issue date: 2026-04-17T10:49+00:00
...The Flood Warning continues for the following rivers in Wisconsin...Illinois... Root River At Franklin affecting Milwaukee County. Wisconsin River At Wisconsin Dells affecting Columbia and Sauk Counties. Rock River At Fort Atkinson affecting Jefferson County. Rock River At Afton affecting Winnebago and Rock Counties. Baraboo River Near Baraboo affecting Columbia and Sauk 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. Fox River Lower At Waukesha affecting Waukesha County. Fox River Lower Near New Munster affecting Kenosha and Lake Counties. Milwaukee River Near Cedarburg affecting Ozaukee County. Root River Canal At Raymond affecting Racine County. Sugar River At Brodhead affecting Winnebago, Rock and Green Counties. Wisconsin River At Portage affecting Columbia County. ...The Flood Warning is cancelled for the following rivers in Illinois...Wisconsin... Turtle Creek Near Clinton affecting Winnebago and Rock Counties. * WHAT...Moderate flooding is occurring and major flooding is forecast. * WHERE...Fox River Lower near New Munster. * WHEN...Until further notice. * IMPACTS...At 14.0 feet, There is flooding of the lower levels of homes in the Town of Wheatland and Village of Salem Lakes areas long Riverside Drive, Shorewood Drive, 101st Street and Shorewood Terrace. * ADDITIONAL DETAILS... - At 5:00 AM CDT Friday the stage was 13.8 feet. - Bankfull stage is 10.0 feet. - Recent Activity...The maximum river stage in the 24 hours ending at 5:00 AM CDT Friday was 13.8 feet. - Forecast...The river is expected to rise to a crest of 14.3 feet this evening. - Flood stage is 11.0 feet. - Flood History...This crest compares to a previous crest of 14.5 feet on 04/20/2013. - http://www.weather.gov/safety/flood
Hydrologic Outlook issued April 17 at 3:57AM CDT by NWS Chicago IL
Issue date: 2026-04-17T08:57+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 afternoon.
Dense Fog Advisory issued April 17 at 1:55AM CDT until April 17 at 10:00AM CDT by NWS Chicago IL
Issue date: 2026-04-17T06:55+00:00
* WHAT...Visibility one quarter mile or less in dense fog. * WHERE...In Illinois, Central Cook, Eastern Will, Lake IL, McHenry, Northern Cook, Northern Will, and Southern Cook Counties. In Indiana, Lake IN and Porter Counties. * WHEN...Until 10 AM CDT this morning. * IMPACTS...Low visibility could make driving conditions hazardous.
Dense Fog Advisory issued April 16 at 11:52PM CDT until April 17 at 10:00AM CDT by NWS Chicago IL
Issue date: 2026-04-17T04:52+00:00
* WHAT...Visibility one quarter mile or less in dense fog. * WHERE...In Illinois, Lake IL, McHenry, Northern Cook, and Southern Cook Counties. In Indiana, Lake IN and Porter Counties. * WHEN...Until 10 AM CDT Friday. * IMPACTS...Low visibility could make driving conditions hazardous.
Flood Warning issued April 16 at 9:44PM CDT by NWS Chicago IL
Issue date: 2026-04-17T02:44+00:00
...The Flood Warning continues for the following rivers in Illinois... Fox River at Montgomery affecting Kane and Kendall Counties. Fox River at Algonquin Lock & Dam tailwater affecting Lake IL, Kane and McHenry Counties. For the Fox River (Illinois)...including Algonquin Lock & Dam tailwater, Moderate flooding is forecast. * WHAT...Minor flooding is occurring and moderate flooding is forecast. * WHERE...Fox River from Johnsburg downstream to Red Gate Road in St. Charles, including the Algonquin Lock & Dam tailwater gauge. * WHEN...Until further notice. * IMPACTS...At 11.5 feet, Residences threatened along Oceola Drive in Algonquin. A few residences threatened along McBridge Street in Elgin. Jayne Street and Beach Drive threatened in Algonquin. River Street threatened in East Dundee. Jerusha Avenue threatened in Elgin. Fox River Trail threatened between East Dundee and Elgin. * ADDITIONAL DETAILS... - At 8:30 PM CDT Thursday the stage was 10.4 feet. - Recent Activity...The maximum river stage in the 24 hours ending at 8:30 PM CDT Thursday was 10.4 feet. - Forecast...The river is expected to rise to 11.3 feet Wednesday morning. Additional rises are possible thereafter. - Flood stage is 9.5 feet. - http://www.weather.gov/safety/flood
Flood Warning issued April 16 at 9:38PM CDT until April 22 at 1:00AM CDT by NWS Chicago IL
Issue date: 2026-04-17T02:38+00:00
...The Flood Warning continues for the following rivers in Illinois... Des Plaines River at Lincolnshire affecting Lake IL and Cook Counties. Des Plaines River near Des Plaines affecting Cook County. Des Plaines River near Gurnee affecting Lake IL County. Des Plaines River near Russell affecting Lake IL County. For the Des Plaines River...including Russell, Gurnee, Lincolnshire, Des Plaines...Moderate flooding is forecast. * WHAT...Minor flooding is occurring and moderate flooding is forecast. * WHERE...Des Plaines River from Townline Road in Libertyville downstream to Palatine Road in Prospect Heights, including the Lincolnshire gauge. * WHEN...Until early Wednesday morning. * IMPACTS...At 14.0 feet, Residences threatened east of the river just south of IL-22 (Half-Day Road). Lincolnshire Drive threatened at Wiltshire Lane. * ADDITIONAL DETAILS... - At 8:45 PM CDT Thursday the stage was 13.5 feet. - Recent Activity...The maximum river stage in the 24 hours ending at 8:45 PM CDT Thursday was 13.5 feet. - Forecast...The river is expected to rise to a crest of 14.5 feet early Saturday afternoon. - Flood stage is 12.5 feet. - http://www.weather.gov/safety/flood
