Cook County, IL
Alerts
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 Sunday 04/19 8:16 PM CDT – Monday 04/20 2:30 PM CDT
Issued by NWS Chicago IL
The Flood Warning continues for the following rivers in Illinois
Des Plaines River at Lincolnshire affecting Cook and Lake IL Counties.
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 forecasted to continue.
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 15.0 feet, Structures threatened along IL-22 (Half-Day Road) just east of the river. Multiple structures threatened near and west of US-45 (Milwaukee Avenue) and Deerfield Road. Deerfield Road threatened near the river. Multiple trails inundated in Half-Day Forest Preserve.
Additional Details
- At 7:45 PM CDT Sunday the stage was 15.1 feet. - Forecast...The river appears close to cresting. It is expected to remain near 15.1 to 15.2 feet through the next 24 hours before gradually falling thereafter. It is expected to remain above flood stage through the 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 Monday 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 Sunday 04/19 8:16 PM CDT – Monday 04/20 2:30 PM CDT
Issued by NWS Chicago IL
The Flood Warning continues for the following rivers in Illinois
Des Plaines River at Lincolnshire affecting Cook and Lake IL Counties.
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 forecasted to continue.
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 Sunday the stage was 17.9 feet. - Forecast...The river appears to be close to cresting. It is expected to begin falling by tomorrow afternoon, but will remain above flood stage through much of the 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 Monday 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 2:34 AM CDT – Monday 04/20 9:00 AM CDT
Issued by NWS Chicago IL
What
Sub-freezing temperatures as low as 26 expected, with the coldest conditions across interior northern Illinois.
Where
Portions of central, east central, north central, and northeast Illinois and northwest Indiana.
When
Until 9 AM CDT /10 AM EDT/ this morning.
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
- Winnebago
- Boone
- McHenry
- Lake
- Ogle
- Lee
- De Kalb
- Kane
- DuPage
- La Salle
- Kendall
- Grundy
- Kankakee
- Livingston
- Iroquois
- Ford
- Northern Cook
- Southern Cook
- Northern Will
- Southern Will
- Eastern Will
- Lake
- Porter
- Newton
- Jasper
- Benton
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
In effect from Monday 04/20 2:34 AM CDT – Monday 04/20 9:00 AM CDT
Issued by NWS Chicago IL
What
Temperatures as low as 33 will result in frost formation in the near west suburbs. Temperatures as low as 35 with patchy frost in Chicago.
Where
Central Cook County.
When
Until 9 AM CDT this morning.
Impacts
Frost could harm sensitive outdoor vegetation. Sensitive outdoor plants may be killed if left uncovered.
What to do
Take steps now to protect tender plants from the cold.
Areas impacted
- Central Cook
Tips to stay safe
A Frost Advisory means that your area is likely to see frost developing overnight, which can harm young or vulnerable plants. Cover these plants before the sun goes down to help them retain heat.
Briefing
From the forecaster
Freezing Temperatures Tonight
Created by the NWS Chicago WFO
Heads up! Widespread freezing conditions are on tap tonight. The exception will be in central Cook County where slightly warmer temperatures will lead primarily to frost. Take care to protect sensitive outdoor plants.
Seven-day weather risk overview
Daily weather risk summary
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