Lake County, IL

Alerts

Warning Area
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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 2:20 PM CDT – Saturday 04/25 1:00 PM CDT

Issued by NWS Chicago IL

What

Flooding caused by excessive rainfall is expected.

Where

A portion of northeast Illinois, including the following counties, Lake IL and McHenry.

When

Until 100 PM CDT Saturday Apr 25.

Impacts

Numerous roads, yards, structures, and park land are expected to flood along the Fox River Chain of Lakes.

Additional Details

- At 145 PM CDT, River gauges along the Fox River Chain of Lakes indicated slowly rises water levels due to recent rainfall across the area. - Water levels may near major flood stage by the middle of next week and remain above flood stage potentially for several weeks. Impacts from this flood may be similar to those experienced in May of 1973, October of 1986, or June of 2008. - Some locations that will experience flooding include areas along the Fox River Chain of Lakes, including Nippersink Lake, Fox Lake, Pistakee Lake, Petite Lake, Lake Marie, Channel Lake, and Lake Catherine. - http://www.weather.gov/safety/flood

What to do

Now is the time to prepare for flooding that hasn't occurred in several years. Residents living along the immediate shorelines of the Fox River Chain of Lakes need to take precautions to protect property including moving valuables to higher ground.
Turn around, don't drown when encountering flooded roads. Most flood deaths occur in vehicles.


Areas impacted

  • Lake, IL
  • McHenry, 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

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

Moderate flooding is occurring and forecasted to continue.

Where

Des Plaines River from US-41 in Gurnee downstream to Townline Road in Vernon Hills, including the Gurnee gauge.

When

Until further notice.

Impacts

At 11.0 feet, US-41 (Skokie Highway) threatened near the river in Gurnee. Mundelein Water Reclamation Facility property is threatened near Libertyville.

Additional Details

- At 7:30 PM CDT Saturday the stage was 10.6 feet. - Forecast...The river is expected to rise to a crest near 10.9 feet tomorrow morning, just below Major Flood Stage. It is then expected to fall through 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 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

  • 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

Moderate flooding is occurring and forecasted to continue.

Where

Des Plaines River from IL/WI state line downstream to US-41 in Gurnee, including the Russell gauge.

When

Until further notice.

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 7:30 PM CDT Saturday the stage was 9.6 feet. - Forecast...The river is expected to remain nearly steady through tomorrow before gradually falling 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 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

  • 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 8:40 PM CDT – Sunday 04/19 2:45 PM CDT

Issued by NWS Chicago IL

The Flood Warning continues for the following rivers in Illinois

Fox River at Dayton affecting La Salle County.

Fox River at Montgomery affecting Kane and Kendall Counties.

Fox River at Algonquin Lock & Dam tailwater affecting Kane, McHenry and Lake IL Counties.

What

Moderate flooding is occurring and forecasted to continue.

Where

Fox River from Johnsburg downstream to Red Gate Road in St. Charles, including the Algonquin Lock & Dam tailwater gauge.

When

Until further notice.

Impacts

At 12.0 feet, Structures threatened along River Street, Johnson Street, and Maiden Lane in East Dundee. North Harrison Street threatened near Riverside Park in Algonquin. Washington Street threatened in Carpentersville. Water Street, Edwards Avenue, and Elgin Avenue threatened in East Dundee. Bayview Road threatened in Elgin. Low-lying areas of Festival Park are threatened in Elgin.

Additional Details

- At 7:30 PM CDT Saturday the stage was 11.2 feet. - Forecast...The river is expected to continue gradually rising into next week. At this point, it is expected to remain just below Major Flood Stage. - Flood stage is 9.5 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

  • Kane, IL
  • Lake, IL
  • McHenry, 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 10:26 AM CDT – Sunday 04/19 10:30 PM CDT

Issued by NWS Milwaukee/Sullivan WI

...The Flood Warning continues for the following rivers in Wisconsin...Illinois...

Milwaukee River Near Cedarburg affecting Ozaukee County.

Rock River Near Lake Koshkonong affecting Rock and Jefferson Counties.

Rock River At Fort Atkinson affecting Jefferson County.

Rock River At Afton affecting Rock and Winnebago Counties.

Rock River At Jefferson affecting Jefferson County.

Rock River At Watertown affecting Jefferson County.

ROCK RIVER near LEBANON-3 E-HWY MM BRIDGE affecting Dodge County.

Fox River Near Berlin affecting Green Lake County.

Crawfish River At Milford affecting Jefferson County.

Fox River Lower At Waukesha affecting Waukesha County.

Fox River Lower Near New Munster affecting Kenosha and Lake Counties.

Sugar River At Brodhead affecting Rock, Winnebago and Green Counties.

The Flood Warning is extended for the following rivers in Wisconsin

Pecatonica River At Martintown affecting Green County.

Root River Canal At Raymond affecting Racine County.

Forecast flooding changed from Moderate to Major severity and increased in duration for the following rivers in Wisconsin

Wisconsin River At Portage affecting Columbia County.

What

Major flooding is occurring and major flooding is forecast.

Where

Fox River Lower near New Munster.

When

Until further notice.

Impacts

At 15.0 feet, Highway 50 is closed due to floodwaters over the highway. There is widespread flooding in the Town of Wheatland and Village of Salem Lakes. Floodwaters are into the lower levels of some homes in those areas along Riverside Drive, Shorewood Drive, 101st Street and Shorewood Terrace.

Additional Details

- At 10:00 AM CDT Sunday the stage was 15.0 feet. - Bankfull stage is 10.0 feet. - Recent Activity...The maximum river stage in the 24 hours ending at 10:00 AM CDT Sunday was 15.0 feet. - Forecast...The river will rise to 15.5 feet this evening. It will then fall this evening. It will rise to 15.5 feet early tomorrow afternoon. It will then fall again but remain above flood stage. - Flood stage is 11.0 feet. - Flood History...This crest compares to a previous crest of 15.2 feet on 06/15/2008. - http://www.weather.gov/safety/flood

What to do

Motorists should not attempt to drive around barricades or drive cars through flooded areas.
Even 6 inches of fast-moving flood water can knock you off your feet and a depth of 2 feet will float your car. Never try to walk, swim, or drive through such swift water. If you come upon flood waters, stop, turn around and go another way.
Additional information is available at www.weather.gov.
The next statement will be issued this evening at 1030 PM CDT.


Areas impacted

  • Lake, IL
  • Kenosha, WI

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 27 expected, with the coldest conditions across interior northern Illinois.

Where

Portions of central, east central, north central, and northeast Illinois and northwest Indiana.

When

From midnight CDT /1 AM EDT/ tonight to 9 AM CDT /10 AM EDT/ 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

  • Winnebago
  • Boone
  • McHenry
  • Lake
  • Ogle
  • Lee
  • De Kalb
  • Kane
  • DuPage
  • La Salle
  • Kendall
  • Grundy
  • Kankakee
  • Livingston
  • Iroquois
  • Ford
  • 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 

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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