Illinois alerts

Lake County, Illinois weather alerts

3 National Weather Service alerts are in force for Lake County: 3 flood warnings.

Checked Thu, Sep 24, 2026, 7:23 PM CDT. Times are Central Daylight Time.

Lake County forecastLive radar here

Warnings on the map

Every watch, warning and advisory the National Weather Service has in force over Lake County, Illinois. Open it for the live map, where it pans and zooms.

Every watch, warning and advisory the National Weather Service has in force over Lake County, Illinois Open the live map with warnings and watches

Map layer from NOAA National Weather Service. Boundaries from the Iowa Environmental Mesonet.

Alerts in force3

Every product in force for Lake County, worst first, with its full text.

Flood Warning

Severe

Flood Warning issued September 24 at 4:02PM CDT until September 25 at 10:00AM CDT by NWS Milwaukee/Sullivan WI

Issued Until 14 hr 36 min left

Areas Lake, IL; Kenosha, WI

Full text

...The Flood Warning continues for the following rivers in Wisconsin...Illinois... Fox River Lower Near New Munster affecting Lake and Kenosha Counties. * WHAT...Minor flooding is occurring and minor flooding is forecast. * WHERE...Fox River Lower near New Munster. * WHEN...Until Friday morning. * IMPACTS...At 11.5 feet, Water is in the yards of some homes in the Village of Salem Lakes and Town of Wheatland areas, including Riverside Dr and Shorewood Dr. There are 3-4 inches of water over 77th Street in the Town of Wheatland. * ADDITIONAL DETAILS... - At 3:00 PM CDT Thursday the stage was 11.5 feet. - Bankfull stage is 10.0 feet. - Recent Activity...The maximum river stage in the 24 hours ending at 3:00 PM CDT Thursday was 12.0 feet. - Forecast...The river is expected to fall below flood stage late tonight and continue falling to 8.6 feet Thursday, October 01. - Flood stage is 11.0 feet. - Flood History...This crest compares to a previous crest of 11.5 feet on 06/05/2002. - http://www.weather.gov/safety/flood

What to do

Turn around, don't drown when encountering flooded roads. Most flood deaths occur in vehicles. Motorists should not attempt to drive around barricades or drive cars through flooded areas. Caution is urged when walking near riverbanks. Additional information is available at www.weather.gov. The next statement will be issued late tonight at 415 AM CDT.

NWS Milwaukee/Sullivan WIShare this alert

Flood Warning

Severe

Flood Warning issued September 24 at 11:12AM CDT until September 27 at 1:00PM CDT by NWS Chicago IL

Issued Until 3 days left

Areas Lake, IL

Full text

...The Flood Warning is extended for the following rivers in Illinois... 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, River Forest, Riverside...Moderate flooding is forecast. * WHAT...Minor flooding is occurring and minor flooding is forecast. * WHERE...Des Plaines River from US-41 in Gurnee downstream to Townline Road in Vernon Hills, including the Gurnee gauge. * WHEN...Until Sunday afternoon. * IMPACTS...At 9.0 feet, Kilbourne Road and Emerald Avenue threatened near Grand Avenue in Gurnee. * ADDITIONAL DETAILS... - At 10:30 AM CDT Thursday the stage was 8.2 feet. - Forecast...The river is expected to rise to a crest near 8.2 feet this afternoon. It will then fall below flood stage later this weekend. - Flood stage is 7.0 feet. - http://www.weather.gov/safety/flood

What 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 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 late tonight.

NWS Chicago ILShare this alert

Flood Warning

Severe

Flood Warning issued September 24 at 11:12AM CDT until September 30 at 1:00AM CDT by NWS Chicago IL

Issued Until 5 days left

Areas Lake, IL

Full text

...The Flood Warning is extended for the following rivers in Illinois... 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, River Forest, Riverside...Moderate flooding is forecast. * WHAT...Moderate flooding is occurring and moderate flooding is forecast. * WHERE...Des Plaines River from IL/WI state line downstream to US-41 in Gurnee, including the Russell gauge. * WHEN...Until late Tuesday night. * IMPACTS...At 9.5 feet, Residential structures threatened along Russell Road between the river and Kilbourne Road. Industrial parking lots threatened along Kilbourne Road. * ADDITIONAL DETAILS... - At 10:30 AM CDT Thursday the stage was 9.1 feet. - Forecast...The river is then expected to fall below flood stage early next week. - Flood stage is 7.0 feet. - http://www.weather.gov/safety/flood

What 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 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 late tonight.

NWS Chicago ILShare this alert

The past year in Lake County

In the past year the National Weather Service issued 143 alerts for Lake County, including 14 flood warnings, 13 severe thunderstorm warnings, 4 tornado warnings and 2 flash flood warnings.

ProductIssuedMost recent
Flood Warning14Sep 22, 2026
Severe Thunderstorm Warning13Aug 11, 2026
Tornado Warning4Jun 17, 2026
Flash Flood Warning2Jun 11, 2026
Freeze Warning2Apr 20, 2026
High Wind Warning2Apr 27, 2026
Winter Storm Warning2Nov 29, 2025
Extreme Cold Warning1Jan 23, 2026
Extreme Heat Warning1Jun 30, 2026
Red Flag Warning1Feb 18, 2026
Flood Watch21Sep 20, 2026
Severe Thunderstorm Watch12Aug 21, 2026
Tornado Watch4Jun 11, 2026
Winter Storm Watch2Nov 29, 2025
Extreme Cold Watch1Jan 23, 2026
Fire Weather Watch1Feb 18, 2026
Freeze Watch1Apr 20, 2026
High Wind Watch1Mar 13, 2026
Wind Advisory10Jun 28, 2026
Winter Weather Advisory8Mar 15, 2026
Dense Fog Advisory7Apr 16, 2026
Flood Advisory7Sep 19, 2026
Heat Advisory5Sep 4, 2026
Cold Weather Advisory4Jan 26, 2026
Frost Advisory3May 7, 2026
Beach Hazard Statement14Sep 20, 2026

Warnings issued

  1. Flood Warning
  2. Flood Warning
  3. Flood Warning
  4. Severe Thunderstorm Warning
  5. Severe Thunderstorm Warning
  6. Severe Thunderstorm Warning
  7. Severe Thunderstorm Warning
  8. Severe Thunderstorm Warning
  9. Severe Thunderstorm Warning
  10. Extreme Heat Warning
  11. Severe Thunderstorm Warning
  12. Tornado Warning
  13. Severe Thunderstorm Warning
  14. Flash Flood Warning
  15. Severe Thunderstorm Warning
  16. Severe Thunderstorm Warning
  17. High Wind Warning
  18. Freeze Warning
  19. Flood Warning
  20. Flood Warning
  21. Tornado Warning
  22. Severe Thunderstorm Warning
  23. Flash Flood Warning
  24. Tornado Warning
  25. Flood Warning
  26. Flood Warning
  27. Flood Warning
  28. Flood Warning
  29. Severe Thunderstorm Warning
  30. Severe Thunderstorm Warning
  31. Flood Warning
  32. Flood Warning
  33. Flood Warning
  34. Flood Warning
  35. Flood Warning
  36. Tornado Warning
  37. High Wind Warning
  38. Red Flag Warning
  39. Extreme Cold Warning
  40. Winter Storm Warning
  41. Winter Storm Warning
  42. Freeze Warning
Every alert, most recent first
  1. Flood Warning
  2. Flood Warning
  3. Flood Watch
  4. Flood Warning
  5. Flood Watch
  6. Flood Watch
  7. Beach Hazard Statement
  8. Flood Watch
  9. Flood Watch
  10. Flood Advisory
  11. Beach Hazard Statement
  12. Beach Hazard Statement
  13. Beach Hazard Statement
  14. Beach Hazard Statement
  15. Heat Advisory
  16. Heat Advisory
  17. Heat Advisory
  18. Severe Thunderstorm Watch
  19. Flood Advisory
  20. Severe Thunderstorm Watch
  21. Severe Thunderstorm Warning
  22. Severe Thunderstorm Warning
  23. Flood Watch
  24. Severe Thunderstorm Watch
  25. Flood Advisory
  26. Severe Thunderstorm Watch
  27. Beach Hazard Statement
  28. Beach Hazard Statement
  29. Severe Thunderstorm Warning
  30. Severe Thunderstorm Watch
  31. Severe Thunderstorm Warning
  32. Flood Advisory
  33. Severe Thunderstorm Warning
  34. Severe Thunderstorm Warning
  35. Heat Advisory
  36. Beach Hazard Statement
  37. Beach Hazard Statement
  38. Flood Watch
  39. Severe Thunderstorm Watch
  40. Severe Thunderstorm Watch

The 40 most recent of 143.

From the Iowa Environmental Mesonet’s archive of NWS watches, warnings and advisories (VTEC), by the county’s own code and the forecast zones inside it. Each links to the alert's own page, with its text, map, radar and sounding.

Every alert in Lake County since 1986

Nearby

The counties around Lake County, with what is in force in each.

What this means

Warning
The hazard is happening or about to. Act now: a tornado warning means take shelter, a flash flood warning means move to higher ground.
Watch
Conditions favor the hazard. Nothing is happening yet; have a plan and be ready to act if a warning follows.
Advisory
A hazard that is less serious than a warning but can still cause trouble, such as dense fog, heat or light ice.
Statement
Information about weather that does not yet meet a warning: a strong storm, a hydrologic update, or a special weather statement.

Severity (extreme, severe, moderate, minor) is the rating the issuing office gives each product. More on the difference: tornado watch vs. tornado warning. Alerts come from the National Weather Service; follow its instructions and your local officials.

Sources

Alerts from the National Weather Service's public feed, read afresh every minute, and matched to counties and zones by their UGC codes. Warnings from outside the United States come from each country's own meteorological service. Follow the issuing office's instructions and your local officials.