This map will show current Severe Weather Alerts for the state selected. Maps will not appear for areas which do not currently have any active Severe Weather Alerts. For a comprehensive forecast for your area, please visit the National Weather Service website at www.weather.gov.

Illinois Severe Weather Alerts

Tornado Warning IllinoisState Weather Alerts

Tornado Warning
The National Weather Service In The Quad Cities Has Issued A * Tornado Warning For... Southeastern Whiteside County In Northwestern Illinois... Northeastern Henry County In Northwestern Illinois... * Until 900 Pm Cdt. * At 820 Pm Cdt, A Severe Thunderstorm Capable Of Producing A Tornado ...Read More.
Effective: March 28, 2020 at 8:20pmExpires: March 28, 2020 at 9:00pmTarget Area: Henry; Whiteside

Tornado Warning
...a Tornado Warning Remains In Effect Until 830 Pm Cdt For Central Fulton County... At 816 Pm Cdt, A Severe Thunderstorm Capable Of Producing A Tornado Was Located Over Lewistown, Moving Northeast At 45 Mph. Hazard...tornado. Source...radar Indicated Rotation. ...Read More.
Effective: March 28, 2020 at 8:17pmExpires: March 28, 2020 at 8:30pmTarget Area: Fulton

Severe Thunderstorm Warning
The National Weather Service In The Quad Cities Has Issued A * Severe Thunderstorm Warning For... Southeastern Whiteside County In Northwestern Illinois... Northeastern Henry County In Northwestern Illinois... Northwestern Bureau County In North Central Illinois... * Until 845 Pm Cdt. ...Read More.
Effective: March 28, 2020 at 8:07pmExpires: March 28, 2020 at 8:45pmTarget Area: Bureau; Henry; Whiteside

Flood Warning
...the Flood Warning Continues For The Following Rivers In Illinois...missouri...kentucky... Mississippi River At Cape Girardeau Mississippi River At Thebes Mississippi River At New Madrid .above The Confluence Of The Ohio River, The Mississippi River Is ...Read More.
Effective: March 28, 2020 at 8:08pmExpires: March 30, 2020 at 12:08amTarget Area: Alexander

Flood Warning
...the Flood Warning Continues For The Following Rivers In Illinois...missouri...kentucky... Mississippi River At Cape Girardeau Mississippi River At Thebes Mississippi River At New Madrid .above The Confluence Of The Ohio River, The Mississippi River Is ...Read More.
Effective: March 28, 2020 at 8:08pmExpires: March 30, 2020 at 12:08amTarget Area: Alexander; Jackson; Union

Flood Warning
...the Flood Warning Continues For The Following Rivers In Wisconsin...illinois... Rock River At Afton Affecting Winnebago And Rock Counties. Fox River Near Berlin Affecting Green Lake County. ...the Flood Warning Remains In Effect... The Flood Warning Continues For ...Read More.
Effective: March 28, 2020 at 4:21pmExpires: March 29, 2020 at 4:30amTarget Area: Winnebago

Flood Warning
.updated Information For The Rock River In Illinois, And The Cedar And Wapsipinicon Rivers In Iowa. River Forecasts Include Past Precipitation And Forecast Rainfall For The Next 48 Hours. ...flood Warning Remains In Effect Until Further Notice... The Flood Warning Continues For ...Read More.
Effective: March 28, 2020 at 3:01pmExpires: March 29, 2020 at 6:59amTarget Area: Henry; Rock Island; Whiteside

Flood Warning
.updated Information For The Rock River In Illinois, And The Cedar And Wapsipinicon Rivers In Iowa. River Forecasts Include Past Precipitation And Forecast Rainfall For The Next 48 Hours. ...flood Warning Remains In Effect Until Further Notice... The Flood Warning Continues For ...Read More.
Effective: March 29, 2020 at 1:00amExpires: March 29, 2020 at 6:59amTarget Area: Henry; Rock Island

Flood Warning
.updated Mississippi River Forecasts. River Forecasts Include Past Precipitation And Forecast Rainfall For The Next 48 Hours. ...flood Warning Remains In Effect Until Further Notice... The Flood Warning Continues For The Mississippi River At Gregory Landing. ...Read More.
Effective: March 28, 2020 at 2:57pmExpires: March 29, 2020 at 6:55amTarget Area: Hancock

Flood Warning
.updated Mississippi River Forecasts. River Forecasts Include Past Precipitation And Forecast Rainfall For The Next 48 Hours. ...flood Warning Remains In Effect Until Further Notice... The Flood Warning Continues For The Mississippi River At Burlington. ...Read More.
Effective: March 28, 2020 at 2:57pmExpires: March 29, 2020 at 6:55amTarget Area: Hancock; Henderson

Flood Warning
.updated Mississippi River Forecasts. River Forecasts Include Past Precipitation And Forecast Rainfall For The Next 48 Hours. ...flood Warning Remains In Effect Until Further Notice... The Flood Warning Continues For The Mississippi River At Gladstone Ld18. ...Read More.
Effective: March 28, 2020 at 2:57pmExpires: March 29, 2020 at 6:55amTarget Area: Henderson

Flood Warning
.updated Mississippi River Forecasts. River Forecasts Include Past Precipitation And Forecast Rainfall For The Next 48 Hours. ...flood Warning Remains In Effect Until Further Notice... The Flood Warning Continues For The Mississippi River At Keithsburg. ...Read More.
Effective: March 28, 2020 at 2:57pmExpires: March 29, 2020 at 6:55amTarget Area: Henderson; Mercer

Flood Warning
.updated Mississippi River Forecasts. River Forecasts Include Past Precipitation And Forecast Rainfall For The Next 48 Hours. ...flood Warning Remains In Effect Until Further Notice... The Flood Warning Continues For The Mississippi River At New Boston Ld17. ...Read More.
Effective: March 28, 2020 at 2:57pmExpires: March 29, 2020 at 6:55amTarget Area: Mercer

Flood Warning
.updated Mississippi River Forecasts. River Forecasts Include Past Precipitation And Forecast Rainfall For The Next 48 Hours. ...flood Warning Remains In Effect Until Further Notice... The Flood Warning Continues For The Mississippi River At Muscatine. ...Read More.
Effective: March 28, 2020 at 2:57pmExpires: March 29, 2020 at 6:55amTarget Area: Mercer; Rock Island

Flood Warning
.updated Mississippi River Forecasts. River Forecasts Include Past Precipitation And Forecast Rainfall For The Next 48 Hours. ...flood Warning Remains In Effect Until Further Notice... The Flood Warning Continues For The Mississippi River At Rock Island Ld15. ...Read More.
Effective: March 28, 2020 at 2:57pmExpires: March 29, 2020 at 6:55amTarget Area: Rock Island

Flood Warning
.updated Mississippi River Forecasts. River Forecasts Include Past Precipitation And Forecast Rainfall For The Next 48 Hours. ...flood Warning Remains In Effect Until Further Notice... The Flood Warning Continues For The Mississippi River At Ill. City Ld16. ...Read More.
Effective: March 28, 2020 at 2:57pmExpires: March 29, 2020 at 6:55amTarget Area: Rock Island

Flood Warning
.updated Mississippi River Forecasts. River Forecasts Include Past Precipitation And Forecast Rainfall For The Next 48 Hours. ...flood Warning Remains In Effect Until Further Notice... The Flood Warning Continues For The Mississippi River At Keokuk Ld19. ...Read More.
Effective: March 30, 2020 at 1:00amExpires: March 29, 2020 at 6:55amTarget Area: Hancock

Flood Warning
.updated Mississippi River Forecasts. River Forecasts Include Past Precipitation And Forecast Rainfall For The Next 48 Hours. ...flood Warning Remains In Effect Until Further Notice... The Flood Warning Continues For The Mississippi River At Camanche. ...Read More.
Effective: March 30, 2020 at 1:00pmExpires: March 29, 2020 at 6:55amTarget Area: Rock Island; Whiteside

Flood Warning
.updated Mississippi River Forecasts. River Forecasts Include Past Precipitation And Forecast Rainfall For The Next 48 Hours. ...flood Warning Remains In Effect Until Further Notice... The Flood Warning Continues For The Mississippi River At Dubuque. ...Read More.
Effective: March 31, 2020 at 7:00amExpires: March 29, 2020 at 6:55amTarget Area: Jo Daviess

Flood Warning
...the National Weather Service In Chicago Has Issued A Flood Warning For The Following Rivers In Illinois... Kishwaukee River At Belvidere Affecting Boone County The Following Forecasts Are Based On Observed Precipitation As Well As Forecast Precipitation 24-48 Hours Into The Future. The National Weather Service In Chicago Has Issued A ...Read More.
Effective: March 29, 2020 at 11:00amExpires: March 30, 2020 at 3:00amTarget Area: Boone

Flood Warning
...the Flood Warning Continues For The Following Rivers In Indiana... Kentucky...illinois... Ohio River At Newburgh Dam, Mount Vernon, J.t. Myers Dam, Shawneetown, Golconda, Smithland Dam, Paducah, Olmsted Lock, And Cairo .minor To Moderate Flooding Continues On The Ohio River. The River ...Read More.
Effective: March 28, 2020 at 10:40amExpires: March 29, 2020 at 2:39pmTarget Area: Alexander; Pulaski

Flood Warning
...the Flood Warning Continues For The Following Rivers In Indiana... Kentucky...illinois... Ohio River At Newburgh Dam, Mount Vernon, J.t. Myers Dam, Shawneetown, Golconda, Smithland Dam, Paducah, Olmsted Lock, And Cairo .minor To Moderate Flooding Continues On The Ohio River. The River ...Read More.
Effective: March 28, 2020 at 10:40amExpires: March 29, 2020 at 2:39pmTarget Area: Massac; Pope

Flood Warning
...the Flood Warning Continues For The Following Rivers In Indiana... Kentucky...illinois... Ohio River At Newburgh Dam, Mount Vernon, J.t. Myers Dam, Shawneetown, Golconda, Smithland Dam, Paducah, Olmsted Lock, And Cairo .minor To Moderate Flooding Continues On The Ohio River. The River ...Read More.
Effective: March 28, 2020 at 10:40amExpires: March 29, 2020 at 2:39pmTarget Area: Pulaski

Flood Warning
...the Flood Warning Continues For The Following Rivers In Indiana... Kentucky...illinois... Ohio River At Newburgh Dam, Mount Vernon, J.t. Myers Dam, Shawneetown, Golconda, Smithland Dam, Paducah, Olmsted Lock, And Cairo .minor To Moderate Flooding Continues On The Ohio River. The River ...Read More.
Effective: March 28, 2020 at 10:40amExpires: April 1, 2020 at 5:30pmTarget Area: Hardin; Pope

Flood Warning
...the Flood Warning Continues For The Following Rivers In Indiana... Kentucky...illinois... Ohio River At Newburgh Dam, Mount Vernon, J.t. Myers Dam, Shawneetown, Golconda, Smithland Dam, Paducah, Olmsted Lock, And Cairo .minor To Moderate Flooding Continues On The Ohio River. The River ...Read More.
Effective: March 28, 2020 at 10:40amExpires: April 4, 2020 at 7:00pmTarget Area: Gallatin; Hardin

Flood Warning
...the Flood Warning Continues For The Following Rivers In Indiana... Kentucky...illinois... Ohio River At Newburgh Dam, Mount Vernon, J.t. Myers Dam, Shawneetown, Golconda, Smithland Dam, Paducah, Olmsted Lock, And Cairo .minor To Moderate Flooding Continues On The Ohio River. The River ...Read More.
Effective: March 28, 2020 at 10:40amExpires: April 6, 2020 at 1:00amTarget Area: Pope

Flood Warning
...the Flood Warning Continues For The Mississippi River At The Following Points... Mississippi River At Canton Mississippi River At Quincy Mississippi River At Lock & Dam 21 Mississippi River At Hannibal ...Read More.
Effective: March 28, 2020 at 10:37amExpires: March 29, 2020 at 4:37pmTarget Area: Adams

Flood Warning
...the Flood Warning Continues For The Mississippi River At The Following Points... Mississippi River At Canton Mississippi River At Quincy Mississippi River At Lock & Dam 21 Mississippi River At Hannibal ...Read More.
Effective: March 28, 2020 at 10:37amExpires: March 29, 2020 at 4:37pmTarget Area: Adams

Flood Warning
...the Flood Warning Continues For The Mississippi River At The Following Points... Mississippi River At Canton Mississippi River At Quincy Mississippi River At Lock & Dam 21 Mississippi River At Hannibal ...Read More.
Effective: March 28, 2020 at 10:37amExpires: March 29, 2020 at 4:37pmTarget Area: Adams

Flood Warning
...the Flood Warning Continues For The Mississippi River At The Following Points... Mississippi River At Canton Mississippi River At Quincy Mississippi River At Lock & Dam 21 Mississippi River At Hannibal ...Read More.
Effective: March 28, 2020 at 10:37amExpires: March 29, 2020 at 4:37pmTarget Area: Calhoun

Flood Warning
...the Flood Warning Continues For The Mississippi River At The Following Points... Mississippi River At Canton Mississippi River At Quincy Mississippi River At Lock & Dam 21 Mississippi River At Hannibal ...Read More.
Effective: March 28, 2020 at 10:37amExpires: March 29, 2020 at 4:37pmTarget Area: Calhoun

Flood Warning
...the Flood Warning Continues For The Mississippi River At The Following Points... Mississippi River At Canton Mississippi River At Quincy Mississippi River At Lock & Dam 21 Mississippi River At Hannibal ...Read More.
Effective: March 28, 2020 at 10:37amExpires: March 29, 2020 at 4:37pmTarget Area: Jackson; Randolph

Flood Warning
...the Flood Warning Continues For The Mississippi River At The Following Points... Mississippi River At Canton Mississippi River At Quincy Mississippi River At Lock & Dam 21 Mississippi River At Hannibal ...Read More.
Effective: March 28, 2020 at 10:37amExpires: March 29, 2020 at 4:37pmTarget Area: Jersey

Flood Warning
...the Flood Warning Continues For The Mississippi River At The Following Points... Mississippi River At Canton Mississippi River At Quincy Mississippi River At Lock & Dam 21 Mississippi River At Hannibal ...Read More.
Effective: March 28, 2020 at 10:37amExpires: March 29, 2020 at 4:37pmTarget Area: Madison

Flood Warning
...the Flood Warning Continues For The Mississippi River At The Following Points... Mississippi River At Canton Mississippi River At Quincy Mississippi River At Lock & Dam 21 Mississippi River At Hannibal ...Read More.
Effective: March 28, 2020 at 10:37amExpires: March 29, 2020 at 4:37pmTarget Area: Pike

Flood Warning
...the Flood Warning Continues For The Mississippi River At The Following Points... Mississippi River At Canton Mississippi River At Quincy Mississippi River At Lock & Dam 21 Mississippi River At Hannibal ...Read More.
Effective: March 28, 2020 at 10:37amExpires: March 29, 2020 at 4:37pmTarget Area: Pike

Flood Warning
...the Flood Warning Continues For The Mississippi River At The Following Points... Mississippi River At Canton Mississippi River At Quincy Mississippi River At Lock & Dam 21 Mississippi River At Hannibal ...Read More.
Effective: March 28, 2020 at 10:37amExpires: March 29, 2020 at 4:37pmTarget Area: Pike

Flood Warning
...the Flood Warning Continues For The Following Rivers In Illinois... Kishwaukee River Near Perryville Affecting Winnebago County Pecatonica River Near Shirland Affecting Winnebago County Rock River At Latham Park Affecting Winnebago County Rock River At Byron Affecting Ogle County ...Read More.
Effective: March 29, 2020 at 10:00amExpires: March 29, 2020 at 1:35amTarget Area: Winnebago

Flood Warning
...the Flood Warning Continues For The Following Rivers In Illinois... Kishwaukee River Near Perryville Affecting Winnebago County Pecatonica River Near Shirland Affecting Winnebago County Rock River At Latham Park Affecting Winnebago County Rock River At Byron Affecting Ogle County ...Read More.
Effective: March 29, 2020 at 2:20amExpires: March 31, 2020 at 8:30amTarget Area: Winnebago

Flood Warning
...the Flood Warning Continues For The Following Rivers In Illinois... Kishwaukee River Near Perryville Affecting Winnebago County Pecatonica River Near Shirland Affecting Winnebago County Rock River At Latham Park Affecting Winnebago County Rock River At Byron Affecting Ogle County ...Read More.
Effective: March 29, 2020 at 2:30pmExpires: April 1, 2020 at 4:00amTarget Area: Ogle

Flood Warning
...the Flood Warning Continues For The Following Rivers In Illinois... Kishwaukee River Near Perryville Affecting Winnebago County Pecatonica River Near Shirland Affecting Winnebago County Rock River At Latham Park Affecting Winnebago County Rock River At Byron Affecting Ogle County ...Read More.
Effective: March 30, 2020 at 4:00pmExpires: April 2, 2020 at 7:00pmTarget Area: Winnebago

Flood Warning
...the Flood Warning Continues For The Following Rivers In Illinois...indiana... Wabash River At New Harmony .the Wabash River Is Cresting And Will Hold Nearly Steady Through The Weekend. A Slow Fall Is Expected Next Week. The Flood Warning Continues For ...Read More.
Effective: March 28, 2020 at 10:05amExpires: April 5, 2020 at 1:00amTarget Area: Gallatin; Wabash; White

Flood Warning
...the Flood Warning Continues For The Following Rivers In Illinois... Little Wabash River At Carmi .minor Flooding Continues On The Little Wabash River. The River Will Remain Above Flood Stage Through Most Of The Upcoming Week. The Flood Warning Continues For ...Read More.
Effective: March 28, 2020 at 10:00amExpires: April 3, 2020 at 11:00pmTarget Area: Gallatin; Wayne; White

Flood Warning
...the Flood Warning Continues For The Following Rivers In Illinois... Illinois River At Valley City Illinois River At Hardin River Forecasts Are Based On Observed Precipitation And Forecast Precipitation For The Next 48 Hours. The Flood Warning Continues For ...Read More.
Effective: March 28, 2020 at 9:56amExpires: March 29, 2020 at 3:56pmTarget Area: Calhoun; Greene; Jersey

Flood Warning
...the Flood Warning Continues For The Following Rivers In Illinois... Illinois River At Valley City Illinois River At Hardin River Forecasts Are Based On Observed Precipitation And Forecast Precipitation For The Next 48 Hours. The Flood Warning Continues For ...Read More.
Effective: March 28, 2020 at 9:56amExpires: March 29, 2020 at 3:56pmTarget Area: Pike; Scott

Flood Warning
...the Flood Warning Continues For The Following Rivers In Illinois... Big Muddy River Near Murphysboro Affecting Jackson County .the Big Muddy River Will Fall To Around 25 Feet Sunday Morning. Minor Flooding Continues. The Flood Warning Continues For ...Read More.
Effective: March 28, 2020 at 9:55amExpires: March 29, 2020 at 1:54pmTarget Area: Jackson

Flood Warning
...the Flood Warning Continues For The Following River In Illinois... Illinois River Near Havana Affecting Cass...fulton And Mason Counties Illinois River At Beardstown Affecting Brown...cass...morgan And Schuyler Counties .the Following Forecasts Are Based On Observed Precipitation, Soil ...Read More.
Effective: March 28, 2020 at 9:45amExpires: March 28, 2020 at 11:45pmTarget Area: Brown; Cass; Morgan; Schuyler

Flood Warning
...the Flood Warning Continues For The Following River In Illinois... Illinois River Near Havana Affecting Cass...fulton And Mason Counties Illinois River At Beardstown Affecting Brown...cass...morgan And Schuyler Counties .the Following Forecasts Are Based On Observed Precipitation, Soil ...Read More.
Effective: March 28, 2020 at 9:45amExpires: March 28, 2020 at 11:45pmTarget Area: Cass; Fulton; Mason

Flood Warning
...the Flood Warning Continues For The Following River In Illinois... Little Wabash River Below Clay City Affecting Clay And Richland Counties .the Following Forecasts Are Based On Observed Precipitation, Soil Moisture Conditions, And Forecast Precipitation. The Flood Warning Continues For ...Read More.
Effective: March 28, 2020 at 9:42amExpires: April 1, 2020 at 1:00amTarget Area: Clay; Richland

Flood Warning
...a Flood Warning Continues For Portions Of The Following Waterways In Indiana... East Fork White River...wabash River...white River... .lowland Flooding Continues Along The East Fork White, White, And Wabash Rivers As A Result Of Heavy Rains Over The Last 2 Weeks. Additional Rainfall Of An Inch With Locally Heavier Amounts Is ...Read More.
Effective: March 28, 2020 at 9:37amExpires: March 28, 2020 at 9:08pmTarget Area: Lawrence; Wabash

Flood Warning
...a Flood Warning Continues For Portions Of The Following Waterways In Indiana... East Fork White River...wabash River...white River... .lowland Flooding Continues Along The East Fork White, White, And Wabash Rivers As A Result Of Heavy Rains Over The Last 2 Weeks. Additional Rainfall Of An Inch With Locally Heavier Amounts Is ...Read More.
Effective: March 28, 2020 at 9:37amExpires: April 4, 2020 at 10:00pmTarget Area: Wabash

Flood Warning
...a Flood Warning Continues For Portions Of The Following Waterways In Indiana... East Fork White River...wabash River...white River... .lowland Flooding Continues Along The East Fork White, White, And Wabash Rivers As A Result Of Heavy Rains Over The Last 2 Weeks. Additional Rainfall Of An Inch With Locally Heavier Amounts Is ...Read More.
Effective: March 28, 2020 at 9:37amExpires: April 5, 2020 at 5:00amTarget Area: Clark; Crawford

Flood Warning
...a Flood Warning Continues For Portions Of The Following Waterways In Indiana... East Fork White River...wabash River...white River... .lowland Flooding Continues Along The East Fork White, White, And Wabash Rivers As A Result Of Heavy Rains Over The Last 2 Weeks. Additional Rainfall Of An Inch With Locally Heavier Amounts Is ...Read More.
Effective: March 28, 2020 at 9:37amExpires: April 5, 2020 at 7:00amTarget Area: Edwards; Gallatin; Wabash; White

Flood Warning
...a Flood Warning Continues For Portions Of The Following Waterways In Indiana... East Fork White River...wabash River...white River... .lowland Flooding Continues Along The East Fork White, White, And Wabash Rivers As A Result Of Heavy Rains Over The Last 2 Weeks. Additional Rainfall Of An Inch With Locally Heavier Amounts Is ...Read More.
Effective: March 28, 2020 at 9:37amExpires: April 5, 2020 at 4:36pmTarget Area: Wabash

Flood Warning
...a Flood Warning Continues For Portions Of The Following Waterways In Indiana... East Fork White River...wabash River...white River... .lowland Flooding Continues Along The East Fork White, White, And Wabash Rivers As A Result Of Heavy Rains Over The Last 2 Weeks. Additional Rainfall Of An Inch With Locally Heavier Amounts Is ...Read More.
Effective: March 28, 2020 at 9:37amExpires: April 6, 2020 at 8:00pmTarget Area: Crawford; Lawrence

Flood Warning
...a Flood Warning Continues For Portions Of The Following Waterways In Indiana... East Fork White River...wabash River...white River... .lowland Flooding Continues Along The East Fork White, White, And Wabash Rivers As A Result Of Heavy Rains Over The Last 2 Weeks. Additional Rainfall Of An Inch With Locally Heavier Amounts Is ...Read More.
Effective: March 28, 2020 at 9:37amExpires: April 6, 2020 at 11:48pmTarget Area: Crawford; Lawrence

Flood Warning
...the Flood Warning Continues For The Following Rivers In Illinois... Fox River At Algonquin Lock & Dam Tailwater Affecting Kane And Mchenry Counties Fox River At Montgomery Affecting Kane And Kendall Counties The Following Forecasts Are Based On Observed Precipitation As Well ...Read More.
Effective: March 28, 2020 at 5:00pmExpires: April 1, 2020 at 7:00pmTarget Area: Kane; McHenry

Flood Warning
...the Flood Warning Continues For The Following Rivers In Illinois... Fox River At Algonquin Lock & Dam Tailwater Affecting Kane And Mchenry Counties Fox River At Montgomery Affecting Kane And Kendall Counties The Following Forecasts Are Based On Observed Precipitation As Well ...Read More.
Effective: March 28, 2020 at 8:58amExpires: April 3, 2020 at 1:00amTarget Area: Kane; Kendall

Flood Warning
...the National Weather Service In Chicago Has Issued A Flood Warning For The Following Rivers In Illinois... Des Plaines River Near Russell Affecting Lake County Des Plaines River Near Gurnee Affecting Lake County The Following Forecasts Are Based On Observed Precipitation As Well As Forecast Precipitation 24-48 Hours Into The Future. ...Read More.
Effective: March 30, 2020 at 3:00amExpires: April 2, 2020 at 4:00amTarget Area: Lake

Flood Warning
...the National Weather Service In Chicago Has Issued A Flood Warning For The Following Rivers In Illinois... Des Plaines River Near Russell Affecting Lake County Des Plaines River Near Gurnee Affecting Lake County The Following Forecasts Are Based On Observed Precipitation As Well As Forecast Precipitation 24-48 Hours Into The Future. ...Read More.
Effective: March 29, 2020 at 7:00amExpires: April 2, 2020 at 7:00amTarget Area: Lake

 

Severe Weather Alerts in Illinois Illinois Frequent Weather Alerts: Blizzards, winter storms, flooding, tornadoes, thunderstorms.

Due to its 400 miles length and mid-continental positioning, Illinois has a climate that varies widely. Most of the State has humid, hot summers and cold winters. The southern portion has a more moderate winter.

One of the flattest states, there are no mountains to keep very cold Arctic air masses away in the winter or the humid air masses flowing in from the Gulf of Mexico in the summertime. Extreme cold and heat are not uncommon.

In the winter, wind chills can make the temperature seem much lower than it is; negative double digits happen annually and warnings are sent out to protect the vulnerable. In the summer, heat advisories warn people to stay indoors due to deadly temperatures. The humidity makes temperatures seem warmer than they are.

Flooding is common in the state and Illinois struggles with urban flooding caused by a combination of heavy rainfall and water-resistant roads.

Storms can happen during any season and severe thunderstorms are a normal part of the spring and early summer season. When severe enough, they can cause destructive tornadoes. Winter storms can bring heavy snowfall that can also lead to flooding if it melts too quickly.