NWS Chicago ILFL.A 0038September 30, 2026
Flood Watch: Lake, IL
The National Weather Service office in Chicago issued a flood watch for Lake in Illinois, in force until 7:00 p.m. local time on October 3. It was the 38th river flood watch the NWS office in Chicago issued in 2026. Illinois had 24 flood watches in September 2026, against 3 in an average September of 2008-2025 (Illinois's flood watchs by year).
Watch
In force for 30 hours
The notice
- Issued by
- National Weather Service, Chicago IL
- Area
- Lake
- State
- Illinois
- Level
- Watch
- Issued
- 9:30 p.m. CDT, September 30, 2026
- In force from
- 1:00 p.m. CDT, October 2, 2026
- Expires
- 7:00 p.m. CDT, October 3, 2026
- CAP severity, certainty, urgency
- Severe, Possible, Future
- VTEC event
- KLOT FL.A 0038
- Official source
- National Weather Service: the notice at its source
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 Watch continues for the following rivers in Illinois... Des Plaines River near Gurnee affecting Lake IL zone. * WHAT...Flooding is possible. * WHERE...Des Plaines River from US-41 in Gurnee downstream to Townline Road in Vernon Hills, including the Gurnee gauge. * WHEN...From Friday afternoon to Saturday evening. * ADDITIONAL DETAILS... - At 8:30 PM CDT Wednesday the stage was 6.0 feet. - Forecast...Rises on the river are possible over the next few days. The river may reach flood stage. - Flood stage is 7.0 feet. - http://www.weather.gov/safety/flood
What the agency told people to do
A Flood Watch means water levels above flood stage are possible, but not yet certain, based upon the latest forecasts. Persons along rivers and streams in the watch area should monitor the latest forecasts and be prepared to take action should flooding develop. These forecasts are based on observed precipitation as well as forecast precipitation 24 hours into the future. Changes to the rainfall forecast, or any additional rainfall after 24 hours, may cause changes to these river forecasts. Additional information is available at www.weather.gov. The next statement will be issued by Thursday 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.