NWS Chicago ILFA.A 0017October 1, 2026
Flood Watch: Lake, Lee, De Kalb and 12 more, IL and IN
The National Weather Service office in Chicago issued a flood watch for Lake, Lee, De Kalb and 12 more in Illinois, Indiana, which was in force until 10:00 p.m. local time on October 1. It was the 17th areal flood watch the NWS office in Chicago issued in 2026. Illinois had 3 flood watches in October 2026, against 2 in an average October of 2008-2025 (Illinois's flood watchs by year).
ExpiredWatch
In force for 10 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, Lee, De Kalb and 12 more
- State
- Illinois
- Level
- Watch
- Issued
- 9:33 a.m. CDT, October 1, 2026
- In force from
- 12:00 p.m. CDT, October 1, 2026
- Expires
- 10:00 p.m. CDT, October 1, 2026
- CAP severity, certainty, urgency
- Severe, Possible, Future
- VTEC event
- KLOT FA.A 0017
- Official source
- National Weather Service: the notice at its source
Flood Watches 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
* WHAT...Flooding caused by excessive rainfall is possible. * WHERE...Portions of Illinois, including the following counties in Illinois, Cook, De Kalb, DuPage, Will, Grundy, Kane, Kendall, La Salle, Lake, and Lee, as well as Lake County in Indiana. * WHEN...Through this evening. * IMPACTS...Creeks and streams may rise out of their banks. Flooding of low lying and flood prone area. * ADDITIONAL DETAILS... - Rain, heavy at times, is expected this afternoon into early this evening. Rainfall totals of 2 inches or more in just a few hours could occur within the more intense rainfall corridors. This heavy rain, falling on already saturated soils, would likely result in flooding, particularly in low lying and flood prone areas. - http://www.weather.gov/safety/flood
What the agency told people to do
A Flood Watch means flooding is possible, but not yet certain, based upon the latest forecasts. Persons with interests along area rivers, creeks, and other waterways should monitor the latest forecasts and be prepared to take action should flooding develop.
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.