Cook County, IL

Alerts

Warning 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 Saturday 04/18 8:35 PM CDT – Sunday 04/19 2:45 PM CDT

Issued by NWS Chicago IL

The Flood Warning is extended for the following rivers in Illinois

Des Plaines River at Lincolnshire affecting Cook and Lake IL Counties.

The Flood Warning continues for the following rivers in Illinois

Des Plaines River near Des Plaines affecting Cook County.

Des Plaines River near Russell affecting Lake IL County.

Des Plaines River near Gurnee affecting Lake IL County.

What

Moderate flooding is occurring and Major flooding is forecasted.

Where

Des Plaines River from Townline Road in Libertyville downstream to Palatine Road in Prospect Heights, including the Lincolnshire gauge.

When

Until further notice.

Impacts

At 16.0 feet, Numerous structures threatened along US-45 (Milwaukee Avenue) between IL-22 (Half Day Road) and Deerfield Road. Access route threatened for numerous residences near US-45 (Milwaukee Avenue) and Deerfield Road. IL-60 (Townline Road) threatened near the river.

Additional Details

- At 7:45 PM CDT Saturday the stage was 14.9 feet. - Forecast...The river is expected to rise to a crest near 15.7 feet (Major Flood Stage) tomorrow evening. It will then slowly fall through next week. - Flood stage is 12.5 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 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 Sunday afternoon.


Areas impacted

  • Cook, IL
  • Lake, IL

Tips to stay safe

A Flood Warning means that dangerous flooding is expected or already happening. Take immediate action to protect yourself and your home. 

  • If your home is likely to flood, or if authorities tell you to evacuate, do so immediately and move to higher ground. 
  • Never walk, swim, or drive through flood waters or flooded roads. 
  • Stay away from areas where water levels can rise rapidly, like storm drains, culverts, creeks and streams. 
  • If you are trapped in a building, move to the highest floor and call 911. Go to the roof only if necessary. 
  • Do not go into any room where electrical cords or outlets are under water. Stay out of water that may have electricity in it!
  • If your vehicle is trapped in rapidly moving water, stay inside. If water is rising inside the vehicle, move to the roof and signal for help.

In effect from Saturday 04/18 8:35 PM CDT – Sunday 04/19 2:45 PM CDT

Issued by NWS Chicago IL

The Flood Warning is extended for the following rivers in Illinois

Des Plaines River at Lincolnshire affecting Cook and Lake IL Counties.

The Flood Warning continues for the following rivers in Illinois

Des Plaines River near Des Plaines affecting Cook County.

Des Plaines River near Russell affecting Lake IL County.

Des Plaines River near Gurnee affecting Lake IL County.

What

Minor flooding is occurring and moderate flooding is forecasted.

Where

Des Plaines River from Palatine Road in Prospect Heights downstream to Irving Park Road in Chicago, including the Des Plaines gauge.

When

Until further notice.

Impacts

At 18.5 feet, Big Bend Road threatened in Des Plaines.

Additional Details

- At 7:45 PM CDT Saturday the stage was 17.5 feet. - Forecast...The river is expected to rise to a crest near 18.0 feet tomorrow evening. It will then slowly fall through next week. - Flood stage is 15.0 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 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 Sunday afternoon.


Areas impacted

  • Cook, IL

Tips to stay safe

A Flood Warning means that dangerous flooding is expected or already happening. Take immediate action to protect yourself and your home. 

  • If your home is likely to flood, or if authorities tell you to evacuate, do so immediately and move to higher ground. 
  • Never walk, swim, or drive through flood waters or flooded roads. 
  • Stay away from areas where water levels can rise rapidly, like storm drains, culverts, creeks and streams. 
  • If you are trapped in a building, move to the highest floor and call 911. Go to the roof only if necessary. 
  • Do not go into any room where electrical cords or outlets are under water. Stay out of water that may have electricity in it!
  • If your vehicle is trapped in rapidly moving water, stay inside. If water is rising inside the vehicle, move to the roof and signal for help.

In effect from Monday 04/20 12:00 AM CDT – Monday 04/20 9:00 AM CDT

Issued by NWS Chicago IL

What

Sub-freezing temperatures as low as 30 expected.

Where

Northern Cook and Southern Cook Counties.

When

From midnight tonight to 9 AM CDT Monday.

Impacts

Frost and freeze conditions could kill crops, other sensitive vegetation and possibly damage unprotected outdoor plumbing.

What to do

Take steps now to protect tender plants from the cold.


Areas impacted

  • Northern Cook
  • Southern Cook

Tips to stay safe

A Freeze Warning means that temperatures will drop below freezing in your area. 

  • Bring young or vulnerable plants indoors to protect them from the cold
  • Wrap or drain outdoor pipes to prevent them from freezing
  • Drain in-ground sprinkler systems 

From the forecaster

Four Day Outlook

Created by the NWS Chicago WFO

A fast-moving disturbance will bring breezy conditions and widely scattered gusty showers to the area today. Widespread subfreezing temperatures are expected outside of Chicago tonight, but a warming trend will commence next week.

Seven-day weather risk overview

Daily weather risk summary

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Weather forecasting office

Chicago Forecast Office

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