De Kalb County, IL

Alerts

Advisory Area
County Line

Alerts are listed in order of start time and level of severity. Click on the alert title to read details for each alert.

In effect from Thursday 06/11 9:06 PM CDT – Friday 06/12 3:00 AM CDT

Issued by NWS Chicago IL

What

Flooding caused by excessive rainfall is expected.

Where

Portions of north central and northeast Illinois, including the following counties, in north central Illinois, Boone, De Kalb, Lee, Ogle and Winnebago. In northeast Illinois, Lake IL and McHenry.

When

Until 300 AM CDT.

Impacts

Creeks and streams may rise out of their banks. Roads and streets may be flooded.

Additional Details

- At 902 PM CDT, Doppler radar indicated that heavy rainfall has ended. Runoff from the 2, to locally 3, inches of rain that fell across the advisory area will continue to lead to minor flooding through the remainder of the evening. Conditions will improve overnight. - Flooding impacts will continue, but no additional rainfall is expected. - Some locations that will experience flooding include... Rockford, Waukegan, Crystal Lake, Gurnee, Round Lake Beach, McHenry, Belvidere, Woodstock, Zion, Loves Park, Machesney Park, Grayslake, Libertyville, Round Lake, Dixon, Antioch, Wauconda, Roscoe, Fox Lake and Harvard. - http://www.weather.gov/safety/flood

What to Do

A Flood Advisory means minor flooding along waterways and other poor drainage areas is imminent or may already be occurring. Persons in the advisory area should use caution and avoid flood waters.
Be especially cautious at night when it is harder to recognize the dangers of flooding.


Areas Impacted

  • Boone, IL
  • De Kalb, IL
  • Lake, IL
  • Lee, IL
  • McHenry, IL
  • Ogle, IL
  • Winnebago, IL

Tips to Stay Safe

A Flood Advisory is issued when flooding may cause significant inconvenience, or even become dangerous if you are not careful. Know your risk at home, work and school, and use caution when flooding is expected. 

  • Be aware of low-lying areas along your travel routes that are most likely to flood. 
  • Check road conditions before traveling, and obey road closures and barricades. 
  • Never walk, swim, or drive through flood waters. 
  • Stay tuned for local weather updates on the situation as it develops.

Briefings

No recent briefing available

From the Forecaster

Four Day Outlook

Created by the NWS Chicago WFO

Cooler and much less humid conditions are expected on Friday. Another cold front will bring showers and scattered thunderstorms late day Saturday through Saturday night, followed by a cool and breezy Sunday.

Seven-day Weather Risk Overview

The graphic shows the daily risk summary for 7 days. Daily risk is based on highest risk factor for that day.

risk level
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No risk
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Weather Forecasting Office

Chicago Forecast Office

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