NWS Chicago ILFL.W 0075October 4, 2026
Flood Warning: Lake, IL
The National Weather Service office in Chicago issued a flood warning for Lake in Illinois, which was in force until 1:30 p.m. local time on October 5. It was the 75th river flood warning the NWS office in Chicago issued in 2026. Illinois had 7 flood warnings in October 2026, against 13 in an average October of 2008-2025 (Illinois's flood warnings by year).
ExpiredWarning
In force for 18.1 hours; it has expired. The agency may have replaced it with a new notice.
The notice
- Issued by
- National Weather Service, Chicago IL
- Area
- Lake
- State
- Illinois
- Level
- Warning
- Issued
- 7:27 p.m. CDT, October 4, 2026
- Expires
- 1:30 p.m. CDT, October 5, 2026
- CAP severity, certainty, urgency
- Severe, Observed, Immediate
- VTEC event
- KLOT FL.W 0075
- Official source
- National Weather Service: the notice at its source
Flood Warnings in Illinois since 2008Every warning type in Illinois
Source: National Weather Service: the notice at its source. AreaZine rebuilds this page from the agency's record; the agency's page is the one to act on. A U.S. Government work, in the public domain.
The notice as issued
...The Flood Warning continues for the following rivers in Illinois... Des Plaines River near Russell affecting Lake IL County. * WHAT...Minor flooding is occurring and minor flooding is forecast. * WHERE...Des Plaines River from IL/WI state line downstream to US-41 in Gurnee, including the Russell gauge. * WHEN...Until further notice. * IMPACTS...At 7.0 feet, Low-lying wetlands and agricultural land is inundated near the river. * ADDITIONAL DETAILS... - At 6:30 PM CDT Sunday the stage was 7.3 feet. - Recent Activity...The maximum river stage in the 24 hours ending at 6:30 PM CDT Sunday was 7.3 feet. - Forecast...The river is cresting. It is then forecast to begin gradually falling through the middle of the week. - Flood stage is 7.0 feet. - Flood History...This crest compares to a previous crest of 7.3 feet on 05/11/2019. - http://www.weather.gov/safety/flood
What the agency told people to do
A Flood Warning means water levels above flood stage are imminent or may already be occurring. Persons along rivers and streams in the warned area should take immediate precautions to protect life and property. These forecasts are based almost entirely on observed precipitation as little to no additional precipitation is currently expected over the next 24 to 48 hours. Additional information is available at www.weather.gov. The next statement will be issued by Monday afternoon.
Source: National Weather Service: the notice at its source. The text is the agency's, unedited. A U.S. Government work, in the public domain.