Weather Warnings for Illinois

Issued by the National Weather Service

Current watches, warnings, and advisories for Illinois
Alerts Updated: April 19, 2026, 6:31 pm  UTC


Freeze Warning issued April 19 at 1:31PM CDT until April 20 at 8:00AM CDT by NWS Lincoln IL

Summary: * WHAT...Sub-freezing temperatures as low as 30 expected. * WHERE...Portions of central, east central, and west central Illinois. * WHEN...From 1 AM to 8 AM CDT Monday. * IMPACTS...Frost and freeze conditions could kill crops, other sensitive vegetation and possibly damage unprotected outdoor plumbing.
Severity:  Moderate    Effective:  April 19, 2026, 1:31 pm      Expires:  April 20, 2026, 5:00 am
Area:  Knox; Stark; Peoria; Marshall; Woodford; Fulton; Tazewell; McLean; Mason; Logan; De Witt; Piatt; Champaign; Vermilion; Douglas; Edgar


Frost Advisory issued April 19 at 1:31PM CDT until April 20 at 8:00AM CDT by NWS Lincoln IL

Summary: * WHAT...Temperatures as low as 36 will result in frost formation. * WHERE...Clay, Lawrence, and Richland Counties. * WHEN...From 1 AM to 8 AM CDT Monday. * IMPACTS...Frost could harm sensitive outdoor vegetation. Sensitive outdoor plants may be killed if left uncovered.
Severity:  Minor    Effective:  April 19, 2026, 1:31 pm      Expires:  April 20, 2026, 5:00 am
Area:  Clay; Richland; Lawrence


Frost Advisory issued April 19 at 1:31PM CDT until April 20 at 8:00AM CDT by NWS Lincoln IL

Summary: * WHAT...Temperatures as low as 33 will result in frost formation. * WHERE...Portions of central, east central, southeast, and west central Illinois. * WHEN...From 1 AM to 8 AM CDT Monday. * IMPACTS...Frost could harm sensitive outdoor vegetation. Sensitive outdoor plants may be killed if left uncovered.
Severity:  Minor    Effective:  April 19, 2026, 1:31 pm      Expires:  April 20, 2026, 5:00 am
Area:  Schuyler; Cass; Menard; Scott; Morgan; Sangamon; Christian; Macon; Moultrie; Coles; Shelby; Cumberland; Clark; Effingham; Jasper; Crawford


Flood Warning issued April 19 at 12:12PM CDT until April 25 at 1:00PM CDT by NWS Chicago IL

Summary: * 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 1202 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
Severity:  Severe    Effective:  April 19, 2026, 12:12 pm      Expires:  April 25, 2026, 1:00 pm
Area:  Lake, IL; McHenry, IL


Flood Warning issued April 19 at 12:01PM CDT by NWS Chicago IL

Summary: ...The Flood Warning continues for the following rivers in Illinois... Illinois River at La Salle affecting La Salle, Putnam and Bureau Counties. * WHAT...Minor flooding is occurring and forecasted to continue. * WHERE...Illinois River from Starved Rock Lock and Dam downstream to confluence with Big Bureau Creek, including the La Salle gauge. * WHEN...Until further notice. * IMPACTS...At 22.0 feet, lower parking lot at Starved Rock State Park is inundated east of La Salle. High water levels begin to impact shipping interests along the river. * ADDITIONAL DETAILS... - At 11:45 AM CDT Sunday, the stage was 21.5 feet. - Forecast...The river is expected remain nearly steady into Monday before gradually falling over the next several days. - Flood stage is 20.0 feet. - http://www.weather.gov/safety/flood
Severity:  Severe    Effective:  April 19, 2026, 12:01 pm      Expires:  April 20, 2026, 6:15 am
Area:  Bureau, IL; La Salle, IL; Putnam, IL


Flood Warning issued April 19 at 11:55AM CDT by NWS Chicago IL

Summary: ...The Flood Warning continues for the following rivers in Illinois... Fox River at Montgomery affecting Kendall and Kane Counties. Fox River at Algonquin Lock & Dam tailwater affecting Kane, McHenry and Lake IL Counties. * WHAT...Minor flooding is occurring and forecasted to continue. * WHERE...Fox River from Red Gate Road in St. Charles downstream to Millington, including the Montgomery gauge. * WHEN...Until further notice. * IMPACTS...At 13.5 feet, low-lying parking lots at city hall and Boy Scout Island are threatened in St. Charles. Fox River Trail is threatened at St. Mary Park in St. Charles. * ADDITIONAL DETAILS... - At 11:00 AM CDT Sunday, the stage was 13.6 feet. - Forecast...The river is expected to remain steady at or just above flood stage at around 13.5 to 13.6 feet. - Flood stage is 13.5 feet. - http://www.weather.gov/safety/flood
Severity:  Severe    Effective:  April 19, 2026, 11:55 am      Expires:  April 20, 2026, 6:00 am
Area:  Kane, IL; Kendall, IL


Flood Warning issued April 19 at 11:55AM CDT by NWS Chicago IL

Summary: ...The Flood Warning continues for the following rivers in Illinois... Fox River at Montgomery affecting Kendall and Kane 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 10:30 AM CDT Sunday, the stage was 11.3 feet. - Forecast...The river is expected to continue to gradually rise over the next several days. At this time, it is expected to remain just below Major Flood Stage. - Flood stage is 9.5 feet. - http://www.weather.gov/safety/flood
Severity:  Severe    Effective:  April 19, 2026, 11:55 am      Expires:  April 20, 2026, 6:00 am
Area:  Kane, IL; Lake, IL; McHenry, IL


Flood Warning issued April 19 at 11:44AM CDT by NWS Chicago IL

Summary: ...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 moderate flooding is forecasted to occur. * 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 10:30 AM CDT Sunday, the stage was 10.7 feet. - Forecast...The river is expected to gradually fall over the next several days. - Flood stage is 7.0 feet. - http://www.weather.gov/safety/flood
Severity:  Severe    Effective:  April 19, 2026, 11:44 am      Expires:  April 20, 2026, 5:45 am
Area:  Lake, IL


Flood Warning issued April 19 at 11:44AM CDT by NWS Chicago IL

Summary: ...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 major flooding is forecasted to occur. * 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 10:45 AM CDT Sunday, the stage was 15.0 feet. - Forecast...The river is expected to rise to a crest near 15.6 feet (Major Flood Stage) late tonight. It will then fall over the next several days. - Flood stage is 12.5 feet. - http://www.weather.gov/safety/flood
Severity:  Severe    Effective:  April 19, 2026, 11:44 am      Expires:  April 20, 2026, 5:45 am
Area:  Cook, IL; Lake, IL


Flood Warning issued April 19 at 11:44AM CDT by NWS Chicago IL

Summary: ...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 moderate flooding is forecasted to occur. * 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 10:30 AM CDT Sunday, the stage was 9.6 feet. - Forecast...The river is expected to remain nearly steady through this evening before gradually falling over the next several days. - Flood stage is 7.0 feet. - http://www.weather.gov/safety/flood
Severity:  Severe    Effective:  April 19, 2026, 11:44 am      Expires:  April 20, 2026, 5:45 am
Area:  Lake, IL


Flood Warning issued April 19 at 11:44AM CDT by NWS Chicago IL

Summary: ...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 moderate flooding is forecasted to occur. * 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 10:45 AM CDT Sunday, the stage was 17.8 feet. - Forecast...The river is expected to rise to a crest near 18.0 feet this evening. It will then fall over the next several days. - Flood stage is 15.0 feet. - http://www.weather.gov/safety/flood
Severity:  Severe    Effective:  April 19, 2026, 11:44 am      Expires:  April 20, 2026, 5:45 am
Area:  Cook, IL


Flood Warning issued April 19 at 11:39AM CDT by NWS Quad Cities IA IL

Summary: ...The Flood Warning is extended for the following rivers in Illinois...Iowa... Mississippi River at Ill. City LD16 affecting Rock Island and Muscatine Counties. ...The Flood Warning continues for the following rivers in Illinois...Iowa...Missouri... Mississippi River at Rock Island LD15 affecting Rock Island, Scott and Muscatine Counties. Mississippi River at Muscatine affecting Mercer, Rock Island, Louisa and Muscatine Counties. Mississippi River at Gregory Landing affecting Clark and Hancock Counties. Mississippi River at New Boston LD17 affecting Mercer and Louisa Counties. Mississippi River at Keithsburg affecting Henderson, Mercer, Louisa and Des Moines Counties. Mississippi River at Burlington affecting Henderson, Lee, Hancock and Des Moines Counties. Mississippi River at Gladstone LD18 affecting Henderson and Des Moines Counties. * WHAT...Minor flooding is occurring and moderate flooding is forecast. * WHERE...Mississippi River at Gladstone LD18. * WHEN...Until further notice. * ADDITIONAL DETAILS... - At 11:00 AM CDT Sunday the stage was 11.9 feet and rising. - Forecast...The river is expected to rise to a crest of 12.5 feet Thursday evening. - Flood stage is 10.0 feet.
Severity:  Severe    Effective:  April 19, 2026, 11:39 am      Expires:  April 20, 2026, 11:45 am
Area:  Des Moines, IA; Henderson, IL


Flood Warning issued April 19 at 11:39AM CDT by NWS Quad Cities IA IL

Summary: ...The Flood Warning is extended for the following rivers in Illinois...Iowa... Mississippi River at Ill. City LD16 affecting Rock Island and Muscatine Counties. ...The Flood Warning continues for the following rivers in Illinois...Iowa...Missouri... Mississippi River at Rock Island LD15 affecting Rock Island, Scott and Muscatine Counties. Mississippi River at Muscatine affecting Mercer, Rock Island, Louisa and Muscatine Counties. Mississippi River at Gregory Landing affecting Clark and Hancock Counties. Mississippi River at New Boston LD17 affecting Mercer and Louisa Counties. Mississippi River at Keithsburg affecting Henderson, Mercer, Louisa and Des Moines Counties. Mississippi River at Burlington affecting Henderson, Lee, Hancock and Des Moines Counties. Mississippi River at Gladstone LD18 affecting Henderson and Des Moines Counties. * WHAT...Minor flooding is occurring and moderate flooding is forecast. * WHERE...Mississippi River at New Boston LD17. * WHEN...Until further notice. * IMPACTS...At 18.1 feet, Lock and Dam 17 is closed. * ADDITIONAL DETAILS... - At 11:10 AM CDT Sunday the stage was 16.0 feet and rising. - Forecast...The river is expected to rise to 17.4 feet early Saturday afternoon. Additional rises are possible thereafter. - Flood stage is 15.0 feet.
Severity:  Severe    Effective:  April 19, 2026, 11:39 am      Expires:  April 20, 2026, 11:45 am
Area:  Louisa, IA; Mercer, IL


Flood Warning issued April 19 at 11:39AM CDT by NWS Quad Cities IA IL

Summary: ...The Flood Warning is extended for the following rivers in Illinois...Iowa... Mississippi River at Ill. City LD16 affecting Rock Island and Muscatine Counties. ...The Flood Warning continues for the following rivers in Illinois...Iowa...Missouri... Mississippi River at Rock Island LD15 affecting Rock Island, Scott and Muscatine Counties. Mississippi River at Muscatine affecting Mercer, Rock Island, Louisa and Muscatine Counties. Mississippi River at Gregory Landing affecting Clark and Hancock Counties. Mississippi River at New Boston LD17 affecting Mercer and Louisa Counties. Mississippi River at Keithsburg affecting Henderson, Mercer, Louisa and Des Moines Counties. Mississippi River at Burlington affecting Henderson, Lee, Hancock and Des Moines Counties. Mississippi River at Gladstone LD18 affecting Henderson and Des Moines Counties. * WHAT...Minor flooding is occurring and minor flooding is forecast. * WHERE...Mississippi River at Gregory Landing. * WHEN...Until further notice. * IMPACTS...At 16.0 feet, Water affects buildings in unprotected low areas. * ADDITIONAL DETAILS... - At 11:00 AM CDT Sunday the stage was 16.2 feet and steady. - Forecast...The river is expected to rise to a crest of 16.5 feet tomorrow morning. - Flood stage is 15.0 feet.
Severity:  Severe    Effective:  April 19, 2026, 11:39 am      Expires:  April 20, 2026, 11:45 am
Area:  Hancock, IL; Clark, MO


Flood Warning issued April 19 at 11:39AM CDT by NWS Quad Cities IA IL

Summary: ...The Flood Warning is extended for the following rivers in Illinois...Iowa... Mississippi River at Ill. City LD16 affecting Rock Island and Muscatine Counties. ...The Flood Warning continues for the following rivers in Illinois...Iowa...Missouri... Mississippi River at Rock Island LD15 affecting Rock Island, Scott and Muscatine Counties. Mississippi River at Muscatine affecting Mercer, Rock Island, Louisa and Muscatine Counties. Mississippi River at Gregory Landing affecting Clark and Hancock Counties. Mississippi River at New Boston LD17 affecting Mercer and Louisa Counties. Mississippi River at Keithsburg affecting Henderson, Mercer, Louisa and Des Moines Counties. Mississippi River at Burlington affecting Henderson, Lee, Hancock and Des Moines Counties. Mississippi River at Gladstone LD18 affecting Henderson and Des Moines Counties. * WHAT...Minor flooding is occurring and moderate flooding is forecast. * WHERE...Mississippi River at Keithsburg. * WHEN...Until further notice. * IMPACTS...At 16.0 feet, Water is over the campground and boat ramp in Keithsburg. * ADDITIONAL DETAILS... - At 10:30 AM CDT Sunday the stage was 15.1 feet and rising. - Forecast...The river is expected to rise to a crest of 15.9 feet early Thursday afternoon. - Flood stage is 14.0 feet.
Severity:  Severe    Effective:  April 19, 2026, 11:39 am      Expires:  April 20, 2026, 11:45 am
Area:  Des Moines, IA; Louisa, IA; Henderson, IL; Mercer, IL


Flood Warning issued April 19 at 11:39AM CDT by NWS Quad Cities IA IL

Summary: ...The Flood Warning is extended for the following rivers in Illinois...Iowa... Mississippi River at Ill. City LD16 affecting Rock Island and Muscatine Counties. ...The Flood Warning continues for the following rivers in Illinois...Iowa...Missouri... Mississippi River at Rock Island LD15 affecting Rock Island, Scott and Muscatine Counties. Mississippi River at Muscatine affecting Mercer, Rock Island, Louisa and Muscatine Counties. Mississippi River at Gregory Landing affecting Clark and Hancock Counties. Mississippi River at New Boston LD17 affecting Mercer and Louisa Counties. Mississippi River at Keithsburg affecting Henderson, Mercer, Louisa and Des Moines Counties. Mississippi River at Burlington affecting Henderson, Lee, Hancock and Des Moines Counties. Mississippi River at Gladstone LD18 affecting Henderson and Des Moines Counties. * WHAT...Moderate flooding is occurring and moderate flooding is forecast. * WHERE...Mississippi River at Burlington. * WHEN...Until further notice. * IMPACTS...At 17.0 feet, Water affects the Port of Burlington parking lot. * ADDITIONAL DETAILS... - At 8:00 PM CDT Saturday the stage was 16.4 feet and rising. - Forecast...The river is expected to rise to a crest of 17.2 feet early Thursday afternoon. - Flood stage is 15.0 feet.
Severity:  Severe    Effective:  April 19, 2026, 11:39 am      Expires:  April 20, 2026, 11:45 am
Area:  Des Moines, IA; Lee, IA; Hancock, IL; Henderson, IL


Flood Warning issued April 19 at 11:39AM CDT by NWS Quad Cities IA IL

Summary: ...The Flood Warning is extended for the following rivers in Illinois...Iowa... Mississippi River at Ill. City LD16 affecting Rock Island and Muscatine Counties. ...The Flood Warning continues for the following rivers in Illinois...Iowa...Missouri... Mississippi River at Rock Island LD15 affecting Rock Island, Scott and Muscatine Counties. Mississippi River at Muscatine affecting Mercer, Rock Island, Louisa and Muscatine Counties. Mississippi River at Gregory Landing affecting Clark and Hancock Counties. Mississippi River at New Boston LD17 affecting Mercer and Louisa Counties. Mississippi River at Keithsburg affecting Henderson, Mercer, Louisa and Des Moines Counties. Mississippi River at Burlington affecting Henderson, Lee, Hancock and Des Moines Counties. Mississippi River at Gladstone LD18 affecting Henderson and Des Moines Counties. * WHAT...Moderate flooding is forecast. * WHERE...Mississippi River at Muscatine. * WHEN...Until further notice. * IMPACTS...At 18.0 feet, Water affects most of the Riverside Park parking lot. * ADDITIONAL DETAILS... - At 10:15 AM CDT Sunday the stage was 16.0 feet and rising. - Forecast...The river is expected to rise to 18.0 feet early Saturday afternoon. Additional rises are possible thereafter. - Flood stage is 16.0 feet.
Severity:  Severe    Effective:  April 19, 2026, 11:39 am      Expires:  April 20, 2026, 11:45 am
Area:  Louisa, IA; Muscatine, IA; Mercer, IL; Rock Island, IL


Flood Warning issued April 19 at 11:39AM CDT by NWS Quad Cities IA IL

Summary: ...The Flood Warning is extended for the following rivers in Illinois...Iowa... Mississippi River at Ill. City LD16 affecting Rock Island and Muscatine Counties. ...The Flood Warning continues for the following rivers in Illinois...Iowa...Missouri... Mississippi River at Rock Island LD15 affecting Rock Island, Scott and Muscatine Counties. Mississippi River at Muscatine affecting Mercer, Rock Island, Louisa and Muscatine Counties. Mississippi River at Gregory Landing affecting Clark and Hancock Counties. Mississippi River at New Boston LD17 affecting Mercer and Louisa Counties. Mississippi River at Keithsburg affecting Henderson, Mercer, Louisa and Des Moines Counties. Mississippi River at Burlington affecting Henderson, Lee, Hancock and Des Moines Counties. Mississippi River at Gladstone LD18 affecting Henderson and Des Moines Counties. * WHAT...Moderate flooding is forecast. * WHERE...Mississippi River at Rock Island LD15. * WHEN...Until further notice. * IMPACTS...At 16.0 feet, Water affects sidewalks along the river at Le Claire Park. Water also affects Credit Island Lane and Moline's River Drive in the 4700 block. * ADDITIONAL DETAILS... - At 11:00 AM CDT Sunday the stage was 14.8 feet and rising. - Forecast...The river is expected to rise above flood stage just after midnight tonight and continue rising to 16.1 feet Friday evening. Additional rises are possible thereafter. - Flood stage is 15.0 feet.
Severity:  Severe    Effective:  April 19, 2026, 11:39 am      Expires:  April 20, 2026, 11:45 am
Area:  Muscatine, IA; Scott, IA; Rock Island, IL


Flood Warning issued April 19 at 11:39AM CDT by NWS Quad Cities IA IL

Summary: ...The Flood Warning is extended for the following rivers in Illinois...Iowa... Mississippi River at Ill. City LD16 affecting Rock Island and Muscatine Counties. ...The Flood Warning continues for the following rivers in Illinois...Iowa...Missouri... Mississippi River at Rock Island LD15 affecting Rock Island, Scott and Muscatine Counties. Mississippi River at Muscatine affecting Mercer, Rock Island, Louisa and Muscatine Counties. Mississippi River at Gregory Landing affecting Clark and Hancock Counties. Mississippi River at New Boston LD17 affecting Mercer and Louisa Counties. Mississippi River at Keithsburg affecting Henderson, Mercer, Louisa and Des Moines Counties. Mississippi River at Burlington affecting Henderson, Lee, Hancock and Des Moines Counties. Mississippi River at Gladstone LD18 affecting Henderson and Des Moines Counties. * WHAT...Moderate flooding is forecast. * WHERE...Mississippi River at Ill. City LD16. * WHEN...From Monday evening until further notice. * IMPACTS...At 16.0 feet, Water affects the park at Andalusia. * ADDITIONAL DETAILS... - At 11:00 AM CDT Sunday the stage was 14.4 feet and rising. - Forecast...The river is expected to rise above flood stage tomorrow evening and continue rising to 16.0 feet early Saturday morning. Additional rises are possible thereafter. - Flood stage is 15.0 feet.
Severity:  Severe    Effective:  April 19, 2026, 11:39 am      Expires:  April 20, 2026, 11:45 am
Area:  Muscatine, IA; Rock Island, IL


Flood Warning issued April 19 at 11:38AM CDT by NWS St Louis MO

Summary: ...The Flood Warning continues for the following rivers in Missouri...Illinois... Mississippi River at Lock & Dam 21. Mississippi River at Canton. Mississippi River at Saverton. Mississippi River at Winfield. Mississippi River at Hannibal. Mississippi River at Clarksville. Mississippi River at Louisiana. River forecasts are based on observed precipitation and forecast precipitation for the next 24 hours. * WHAT...Minor flooding is occurring and minor flooding is forecast. * WHERE...Mississippi River at Louisiana. * WHEN...Until further notice. * IMPACTS...At 17.0 feet, The parking area at the boat house floods. * ADDITIONAL DETAILS... - At 11:00 AM CDT Sunday the stage was 18.0 feet. - Recent Activity...The maximum river stage in the 24 hours ending at 11:00 AM CDT Sunday was 18.0 feet. - Forecast...The river is expected to rise to a crest of 18.2 feet this evening. - Flood stage is 15.0 feet.
Severity:  Severe    Effective:  April 19, 2026, 11:38 am      Expires:  April 20, 2026, 11:45 pm
Area:  Pike, IL; Pike, MO


Flood Warning issued April 19 at 11:38AM CDT by NWS St Louis MO

Summary: ...The Flood Warning continues for the following rivers in Missouri...Illinois... Mississippi River at Lock & Dam 21. Mississippi River at Canton. Mississippi River at Saverton. Mississippi River at Winfield. Mississippi River at Hannibal. Mississippi River at Clarksville. Mississippi River at Louisiana. River forecasts are based on observed precipitation and forecast precipitation for the next 24 hours. * WHAT...Minor flooding is occurring and minor flooding is forecast. * WHERE...Mississippi River at Canton. * WHEN...Until further notice. * IMPACTS...At 15.6 feet, North Front Street and the first 2-3 campsites in Mississippi Park begin flooding at this height. * ADDITIONAL DETAILS... - At 6:00 AM CDT Sunday the stage was 16.0 feet. - Recent Activity...The maximum river stage in the 24 hours ending at 6:00 AM CDT Sunday was 16.0 feet. - Forecast...The river is expected to rise to a crest of 15.9 feet early tomorrow afternoon. - Flood stage is 15.0 feet.
Severity:  Severe    Effective:  April 19, 2026, 11:38 am      Expires:  April 20, 2026, 11:45 pm
Area:  Adams, IL; Lewis, MO


Flood Warning issued April 19 at 11:38AM CDT by NWS St Louis MO

Summary: ...The Flood Warning continues for the following rivers in Missouri...Illinois... Mississippi River at Lock & Dam 21. Mississippi River at Canton. Mississippi River at Saverton. Mississippi River at Winfield. Mississippi River at Hannibal. Mississippi River at Clarksville. Mississippi River at Louisiana. River forecasts are based on observed precipitation and forecast precipitation for the next 24 hours. * WHAT...Minor flooding is occurring and minor flooding is forecast. * WHERE...Mississippi River at Saverton. * WHEN...Until further notice. * ADDITIONAL DETAILS... - At 10:00 AM CDT Sunday the stage was 18.2 feet. - Recent Activity...The maximum river stage in the 24 hours ending at 10:00 AM CDT Sunday was 18.2 feet. - Forecast...The river is expected to rise to a crest of 18.3 feet this evening. - Flood stage is 16.0 feet.
Severity:  Severe    Effective:  April 19, 2026, 11:38 am      Expires:  April 20, 2026, 11:45 pm
Area:  Pike, IL; Ralls, MO


Flood Warning issued April 19 at 11:38AM CDT by NWS St Louis MO

Summary: ...The Flood Warning continues for the following rivers in Missouri...Illinois... Mississippi River at Lock & Dam 21. Mississippi River at Canton. Mississippi River at Saverton. Mississippi River at Winfield. Mississippi River at Hannibal. Mississippi River at Clarksville. Mississippi River at Louisiana. River forecasts are based on observed precipitation and forecast precipitation for the next 24 hours. * WHAT...Minor flooding is occurring and minor flooding is forecast. * WHERE...Mississippi River at Clarksville. * WHEN...Until further notice. * IMPACTS...At 29.0 feet, Water enters the parking lot entrance at the Clarksville Riverfront Park. * ADDITIONAL DETAILS... - At 11:00 AM CDT Sunday the stage was 28.0 feet. - Recent Activity...The maximum river stage in the 24 hours ending at 11:00 AM CDT Sunday was 28.0 feet. - Forecast...The river is expected to rise to a crest of 28.5 feet just after midnight tonight. - Flood stage is 25.0 feet.
Severity:  Severe    Effective:  April 19, 2026, 11:38 am      Expires:  April 20, 2026, 11:45 pm
Area:  Calhoun, IL; Pike, MO


Flood Warning issued April 19 at 11:38AM CDT until April 22 at 7:00PM CDT by NWS St Louis MO

Summary: ...The Flood Warning continues for the following rivers in Missouri...Illinois... Mississippi River at Lock & Dam 21. Mississippi River at Canton. Mississippi River at Saverton. Mississippi River at Winfield. Mississippi River at Hannibal. Mississippi River at Clarksville. Mississippi River at Louisiana. River forecasts are based on observed precipitation and forecast precipitation for the next 24 hours. * WHAT...Minor flooding is occurring and minor flooding is forecast. * WHERE...Mississippi River at Lock & Dam 21. * WHEN...Until Wednesday evening. * ADDITIONAL DETAILS... - At 10:00 AM CDT Sunday the stage was 18.3 feet. - Recent Activity...The maximum river stage in the 24 hours ending at 10:00 AM CDT Sunday was 18.3 feet. - Forecast...The river is expected to fall below flood stage early Tuesday afternoon and continue falling to 17.3 feet Sunday, April 26. - Flood stage is 18.0 feet.
Severity:  Severe    Effective:  April 19, 2026, 11:38 am      Expires:  April 20, 2026, 11:45 pm
Area:  Adams, IL; Marion, MO


Flood Warning issued April 19 at 11:38AM CDT by NWS St Louis MO

Summary: ...The National Weather Service in St Louis has issued a Flood Warning for the following rivers in Missouri...Illinois... Mississippi River at Grafton. River forecasts are based on observed precipitation and forecast precipitation for the next 24 hours. * WHAT...Minor flooding is forecast. * WHERE...Mississippi River at Grafton. * WHEN...From this evening until further notice. * IMPACTS...At 21.0 feet, Water begins flooding the floor at the Palisades Marina in Portage Des Sioux. Access to homes along North Shore Drive in eastern St. Charles County becomes cut off near this height. * ADDITIONAL DETAILS... - At 11:00 AM CDT Sunday the stage was 19.8 feet. - Forecast...The river is expected to rise above flood stage this evening and continue rising to a crest of 21.1 feet Tuesday evening. - Flood stage is 20.0 feet.
Severity:  Severe    Effective:  April 19, 2026, 11:38 am      Expires:  April 20, 2026, 11:45 pm
Area:  Jersey, IL; St. Charles, MO


Flood Warning issued April 19 at 11:38AM CDT by NWS St Louis MO

Summary: ...The Flood Warning continues for the following rivers in Missouri...Illinois... Mississippi River at Lock & Dam 21. Mississippi River at Canton. Mississippi River at Saverton. Mississippi River at Winfield. Mississippi River at Hannibal. Mississippi River at Clarksville. Mississippi River at Louisiana. River forecasts are based on observed precipitation and forecast precipitation for the next 24 hours. * WHAT...Minor flooding is occurring and minor flooding is forecast. * WHERE...Mississippi River at Hannibal. * WHEN...Until further notice. * IMPACTS...At 19.0 feet, The Corps of Engineers begins flood fight procedures. At this level, preparations are made to install two flood gates at Hill Street and Center Street if the forecast exceeds 20.5 feet. * ADDITIONAL DETAILS... - At 11:15 AM CDT Sunday the stage was 19.7 feet. - Recent Activity...The maximum river stage in the 24 hours ending at 11:15 AM CDT Sunday was 19.7 feet. - Forecast...The river is expected to rise to a crest of 19.7 feet this afternoon. - Flood stage is 17.0 feet.
Severity:  Severe    Effective:  April 19, 2026, 11:38 am      Expires:  April 20, 2026, 11:45 pm
Area:  Pike, IL; Marion, MO


Flood Warning issued April 19 at 11:38AM CDT by NWS St Louis MO

Summary: ...The Flood Warning continues for the following rivers in Missouri...Illinois... Mississippi River at Lock & Dam 21. Mississippi River at Canton. Mississippi River at Saverton. Mississippi River at Winfield. Mississippi River at Hannibal. Mississippi River at Clarksville. Mississippi River at Louisiana. River forecasts are based on observed precipitation and forecast precipitation for the next 24 hours. * WHAT...Minor flooding is occurring and minor flooding is forecast. * WHERE...Mississippi River at Winfield. * WHEN...Until further notice. * IMPACTS...At 28.6 feet, Water begins covering Highway C about a half mile south of Highway B in St. Charles County. * ADDITIONAL DETAILS... - At 11:00 AM CDT Sunday the stage was 27.4 feet. - Recent Activity...The maximum river stage in the 24 hours ending at 11:00 AM CDT Sunday was 27.4 feet. - Forecast...The river is expected to rise to a crest of 28.8 feet early Tuesday morning. - Flood stage is 26.0 feet.
Severity:  Severe    Effective:  April 19, 2026, 11:38 am      Expires:  April 20, 2026, 11:45 pm
Area:  Calhoun, IL; Lincoln, MO


Flood Watch issued April 19 at 11:26AM CDT until April 26 at 7:00AM CDT by NWS Quad Cities IA IL

Summary: ...The Flood Watch continues for the following rivers in Illinois... Iowa... Mississippi River at Camanche affecting Whiteside, Clinton, Rock Island and Scott zones. * WHAT...Flooding is possible. * WHERE...Mississippi River at Camanche. * WHEN...From Friday morning to Sunday, April 26. * IMPACTS...At 17.0 feet, Water affects low-lying residences at Albany. * ADDITIONAL DETAILS... - At 10:30 AM CDT Sunday the stage was 15.5 feet and steady. - Forecast...Flood stage may be reached Friday morning. - Flood stage is 17.0 feet. - http://www.weather.gov/safety/flood
Severity:  Severe    Effective:  April 19, 2026, 11:26 am      Expires:  April 20, 2026, 11:30 am
Area:  Clinton; Scott; Whiteside; Rock Island


Flood Warning issued April 19 at 11:23AM CDT by NWS Lincoln IL

Summary: ...The Flood Warning continues for the following rivers in Illinois... Illinois River at Beardstown affecting Brown, Morgan, Cass and Schuyler Counties. .The following forecasts are based on observed precipitation, soil moisture conditions, and forecast precipitation. * WHAT...Minor flooding is occurring and minor flooding is forecast. * WHERE...Illinois River at Beardstown. * WHEN...Until further notice. * IMPACTS...At 18.0 feet, Seepage problems begin in the Lost Creek Drainage and Levee District. * ADDITIONAL DETAILS... - At 10:45 AM CDT Sunday the stage was 15.8 feet. - Recent Activity...The maximum river stage in the 24 hours ending at 10:45 AM CDT Sunday was 15.8 feet. - Forecast...The river is expected to rise to a crest of 17.0 feet Wednesday evening. - Flood stage is 14.0 feet. - http://www.weather.gov/safety/flood
Severity:  Severe    Effective:  April 19, 2026, 11:23 am      Expires:  April 20, 2026, 3:30 am
Area:  Brown, IL; Cass, IL; Morgan, IL; Schuyler, IL


Flood Warning issued April 19 at 11:23AM CDT by NWS Lincoln IL

Summary: ...The Flood Warning continues for the following rivers in Illinois... Illinois River near Havana affecting Fulton, Cass and Mason Counties. .The following forecasts are based on observed precipitation, soil moisture conditions, and forecast precipitation. * WHAT...Minor flooding is occurring and minor flooding is forecast. * WHERE...Illinois River near Havana. * WHEN...Until further notice. * ADDITIONAL DETAILS... - At 10:45 AM CDT Sunday the stage was 15.7 feet. - Recent Activity...The maximum river stage in the 24 hours ending at 10:45 AM CDT Sunday was 15.7 feet. - Forecast...The river is expected to rise to a crest of 16.8 feet early Thursday afternoon. - Flood stage is 14.0 feet. - http://www.weather.gov/safety/flood
Severity:  Severe    Effective:  April 19, 2026, 11:23 am      Expires:  April 20, 2026, 3:30 am
Area:  Cass, IL; Fulton, IL; Mason, IL


Hydrologic Outlook issued April 19 at 11:23AM CDT by NWS Lincoln IL

Summary: ESFILX This hydrologic outlook includes the following river in Illinois: Illinois River... The following river information is based on future predicted rainfall. The exact amount, intensity, timing, and location of the rain that will occur is still uncertain. These outlook stages are provided to show what may be expected if the forecast precipitation occurs. Once there is more certainty about the river forecasts, a flood warning or statement will be issued if the threat materializes.
Severity:  Unknown    Effective:  April 19, 2026, 11:23 am      Expires:  April 19, 2026, 8:00 pm
Area:  Marshall, IL; Peoria, IL; Tazewell, IL; Woodford, IL


Flood Warning issued April 19 at 11:22AM CDT by NWS St Louis MO

Summary: ...The Flood Warning continues for the following rivers in Illinois... Illinois River at Hardin. ...The Flood Warning is cancelled for the following rivers in Missouri... Moreau River near Jefferson City. River forecasts are based on observed precipitation and forecast precipitation for the next 24 hours. * WHAT...Minor flooding is occurring and minor flooding is forecast. * WHERE...Illinois River at Hardin. * WHEN...Until further notice. * IMPACTS...At 25.0 feet, Flood Stage. Lowland flooding of unprotected agricultural land begins. * ADDITIONAL DETAILS... - At 11:00 AM CDT Sunday the stage was 25.5 feet. - Recent Activity...The maximum river stage in the 24 hours ending at 11:00 AM CDT Sunday was 25.5 feet. - Forecast...The river is expected to rise to a crest of 26.9 feet early Wednesday morning. - Flood stage is 25.0 feet.
Severity:  Severe    Effective:  April 19, 2026, 11:22 am      Expires:  April 20, 2026, 11:30 pm
Area:  Calhoun, IL; Greene, IL; Jersey, IL


Flood Watch issued April 19 at 11:19AM CDT until April 21 at 7:00AM CDT by NWS Chicago IL

Summary: ...The Flood Watch continues for the following rivers in Illinois... Rock River at Dixon affecting Lee and Ogle Counties. * WHAT...Flooding is possible. * WHERE...Rock River from Castle Rock State Park near Oregon downstream to Lee County line, including the Dixon gauge. * WHEN...From Monday morning to Tuesday morning. * IMPACTS...At 16.0 feet, N Canal Drive threatened in Woodland Shores. Water overflows low-lying banks along west First Street in Dixon. Residential property threatened near Sherman Avenue and River Street in Dixon. * ADDITIONAL DETAILS... - At 10:15 AM CDT Sunday, the stage was 15.4 feet. - Forecast...Flood stage may be reached tomorrow morning. - Flood stage is 16.0 feet. - http://www.weather.gov/safety/flood
Severity:  Severe    Effective:  April 19, 2026, 11:19 am      Expires:  April 20, 2026, 5:30 am
Area:  Ogle; Lee


Flood Warning issued April 19 at 11:10AM CDT by NWS Chicago IL

Summary: ...The Flood Warning continues for the following rivers in Illinois... Rock River at Byron affecting Ogle County. Rock River at Rockton affecting Winnebago County. Rock River at Latham Park affecting Winnebago County. * WHAT...Moderate flooding is occurring and moderate flooding is forecasted to occur. * WHERE...Rock River from Swanson Road in Roscoe downstream to Shorewood Park in Loves Park, including the Latham Park gauge. * WHEN...Until further notice. * IMPACTS...At 12.0 feet, low-lying sections of Shorewood Park are inundated in Loves Park. * ADDITIONAL DETAILS... - At 10:30 AM CDT Sunday, the stage was 11.9 feet. - Forecast...The river is expected to rise to a crest of 12.2 feet tomorrow evening and remain in Moderate Flood Stage until further notice. - Flood stage is 9.0 feet. - http://www.weather.gov/safety/flood
Severity:  Severe    Effective:  April 19, 2026, 11:10 am      Expires:  April 20, 2026, 5:15 am
Area:  Winnebago, IL


Flood Warning issued April 19 at 11:10AM CDT by NWS Chicago IL

Summary: ...The Flood Warning continues for the following rivers in Illinois... Rock River at Byron affecting Ogle County. Rock River at Rockton affecting Winnebago County. Rock River at Latham Park affecting Winnebago County. * WHAT...Moderate flooding is occurring and moderate flooding is forecasted to occur. * WHERE...Rock River from confluence with Kishwaukee River to Castle Rock State Park near Oregon, including the Byron gauge. * WHEN...Until further notice. * IMPACTS...At 15.5 feet, water threatens lower sections of the water treatment plant property in Byron. Water threatens IL-2 west of Byron. * ADDITIONAL DETAILS... - At 10:15 AM CDT Sunday, the stage was 15.0 feet. - Forecast...The river is expected to rise to a crest of 15.2 feet this evening. It is then expected to slowly fall through next week. - Flood stage is 13.0 feet. - http://www.weather.gov/safety/flood
Severity:  Severe    Effective:  April 19, 2026, 11:10 am      Expires:  April 20, 2026, 5:15 am
Area:  Ogle, IL


Flood Warning issued April 19 at 11:10AM CDT by NWS Chicago IL

Summary: ...The Flood Warning continues for the following rivers in Illinois... Rock River at Byron affecting Ogle County. Rock River at Rockton affecting Winnebago County. Rock River at Latham Park affecting Winnebago County. * WHAT...Moderate flooding is occurring and moderate flooding is forecasted to occur. * WHERE...Rock River from Prairie Hill Road downstream to Swanson Road in Roscoe, including the Rockton gauge. * WHEN...Until further notice. * IMPACTS...At 13.5 feet, Old River Road threatened west of Roscoe Bridge. * ADDITIONAL DETAILS... - At 10:30 AM CDT Sunday, the stage was 12.5 feet. - Forecast...The river is expected to rise to a crest of 12.8 feet tomorrow morning and remain in Moderate Flood Stage until further notice. - Flood stage is 10.0 feet. - http://www.weather.gov/safety/flood
Severity:  Severe    Effective:  April 19, 2026, 11:10 am      Expires:  April 20, 2026, 5:15 am
Area:  Winnebago, IL


Freeze Warning issued April 19 at 11:00AM CDT until April 20 at 9:00AM CDT by NWS Quad Cities IA IL

Summary: * WHAT...Sub-freezing temperatures in the mid to upper 20s. * WHERE...Portions of north central, northwest, and west central Illinois and east central, northeast, and southeast Iowa. * 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.
Severity:  Moderate    Effective:  April 19, 2026, 11:00 am      Expires:  April 19, 2026, 7:00 pm
Area:  Buchanan; Delaware; Dubuque; Benton; Linn; Jones; Jackson; Iowa; Johnson; Cedar; Clinton; Muscatine; Scott; Keokuk; Washington; Louisa; Jefferson; Henry; Des Moines; Van Buren; Lee; Jo Daviess; Stephenson; Carroll; Whiteside; Rock Island; Henry; Bureau; Putnam; Mercer; Henderson; Warren; Hancock; McDonough


Flood Warning issued April 19 at 10:50AM CDT until April 19 at 7:00PM CDT by NWS Chicago IL

Summary: ...The Flood Warning continues for the following rivers in Illinois... Kishwaukee River near Perryville affecting Winnebago County. Kishwaukee River at Belvidere affecting Boone and Winnebago Counties. * WHAT...Minor flooding is occurring and expected to continue. * WHERE...Kishwaukee River from County Line Road downstream to confluence with South Branch Kishwaukee River, including the Belvidere gauge. * WHEN...Until this evening. * IMPACTS...At 9.5 feet, Holiday Acres Campground threatened east of Belvidere. Northwoods RV Resort is threatened in Garden Prairie. * ADDITIONAL DETAILS... - At 10:30 AM CDT Sunday, the stage was 9.3 feet. - Forecast...The river is expected to fall below flood stage late this afternoon. - Flood stage is 9.0 feet. - http://www.weather.gov/safety/flood
Severity:  Severe    Effective:  April 19, 2026, 10:50 am      Expires:  April 19, 2026, 7:00 pm
Area:  Boone, IL; Winnebago, IL


Flood Warning issued April 19 at 10:50AM CDT until April 21 at 4:00AM CDT by NWS Chicago IL

Summary: ...The Flood Warning continues for the following rivers in Illinois... Kishwaukee River near Perryville affecting Winnebago County. Kishwaukee River at Belvidere affecting Boone and Winnebago Counties. * WHAT...Minor flooding is occurring and expected to continue. * WHERE...Kishwaukee River from confluence with South Branch Kishwaukee River downstream to the Rock River, including the Perryville gauge. * WHEN...Until early Tuesday morning. * IMPACTS...At 15.0 feet, Old Perryville Road threatened south of Rockford. Widespread inundation of agricultural land and forest land near Chicago Rockford International Airport. * ADDITIONAL DETAILS... - At 9:30 AM CDT Sunday, the stage was 14.2 feet. - Forecast...The river is expected to fall below flood stage late tomorrow night. - Flood stage is 12.0 feet. - http://www.weather.gov/safety/flood
Severity:  Severe    Effective:  April 19, 2026, 10:50 am      Expires:  April 20, 2026, 5:00 am
Area:  Winnebago, IL


Flood Warning issued April 19 at 10:37AM CDT by NWS Quad Cities IA IL

Summary: ...The Flood Warning continues for the following rivers in Illinois... Pecatonica River at Freeport affecting Stephenson County. Rock River at Como affecting Whiteside County. Rock River at Moline affecting Rock Island and Henry IL Counties. Rock River near Joslin affecting Rock Island, Henry IL and Whiteside Counties. * WHAT...Moderate flooding is occurring and major flooding is forecast. * WHERE...Rock River at Moline. * WHEN...Until further notice. * IMPACTS...At 14.0 feet, Major Flood Stage. Water affects South Shore Drive and North Shore Drive in Moline west of the 27th Street bridge. Water limits access to homes on South Shore Drive east of the I-74 bridge. Water also affects portions of 60th Street south of John Deere Road. * ADDITIONAL DETAILS... - At 9:30 AM CDT Sunday the stage was 13.2 feet and rising. - Forecast...The river is expected to rise to a crest of 14.1 feet Tuesday evening. - Flood stage is 12.0 feet.
Severity:  Severe    Effective:  April 19, 2026, 10:37 am      Expires:  April 20, 2026, 10:45 am
Area:  Henry, IL; Rock Island, IL


Flood Warning issued April 19 at 10:37AM CDT until April 21 at 9:00AM CDT by NWS Quad Cities IA IL

Summary: ...The Flood Warning continues for the following rivers in Illinois... Pecatonica River at Freeport affecting Stephenson County. Rock River at Como affecting Whiteside County. Rock River at Moline affecting Rock Island and Henry IL Counties. Rock River near Joslin affecting Rock Island, Henry IL and Whiteside Counties. * WHAT...Minor flooding is occurring and minor flooding is forecast. * WHERE...Pecatonica River at Freeport. * WHEN...Until late Tuesday morning. * IMPACTS...At 13.0 feet, Flood Stage. Water affects low lying sections of Freeport mainly east of the Pecatonica River. * ADDITIONAL DETAILS... - At 9:30 AM CDT Sunday the stage was 13.3 feet and steady. - Forecast...The river is expected to gradually rise to a crest of 13.4 feet this afternoon. It will then fall below flood stage early Tuesday morning. - Flood stage is 13.0 feet.
Severity:  Severe    Effective:  April 19, 2026, 10:37 am      Expires:  April 20, 2026, 10:45 am
Area:  Stephenson, IL


Flood Warning issued April 19 at 10:37AM CDT until April 24 at 3:00AM CDT by NWS Quad Cities IA IL

Summary: ...The Flood Warning continues for the following rivers in Illinois... Pecatonica River at Freeport affecting Stephenson County. Rock River at Como affecting Whiteside County. Rock River at Moline affecting Rock Island and Henry IL Counties. Rock River near Joslin affecting Rock Island, Henry IL and Whiteside Counties. * WHAT...Minor flooding is occurring and minor flooding is forecast. * WHERE...Rock River at Como. * WHEN...Until early Friday morning. * IMPACTS...At 12.8 feet, Water begins to encroach into properties on Regan Road northeast of Como. * ADDITIONAL DETAILS... - At 10:15 AM CDT Sunday the stage was 12.7 feet gradually rising. - Forecast...The river is expected to rise to a crest of 13.4 feet early tomorrow afternoon. It will then fall below flood stage Thursday evening. - Flood stage is 12.5 feet.
Severity:  Severe    Effective:  April 19, 2026, 10:37 am      Expires:  April 20, 2026, 10:45 am
Area:  Whiteside, IL


Flood Warning issued April 19 at 10:37AM CDT by NWS Chicago IL

Summary: ...The Flood Warning continues for the following rivers in Illinois... Pecatonica River near Shirland affecting Winnebago County. * WHAT...Minor flooding is occurring and moderate flooding is forecasted to occur. * WHERE...Pecatonica River from Winnebago County line downstream to confluence with the Rock River, including the Shirland gauge. * WHEN...Until further notice. * IMPACTS...At 14.0 feet, Structures threatened at Rivers Edge Campground east of Shirland. * ADDITIONAL DETAILS... - At 10:00 AM CDT Sunday, the stage was 13.8 feet. - Forecast...The river is expected to rise to a crest near 14.0 feet (Moderate Stage) this evening. It is expected to slowly fall thereafter through next week. - Flood stage is 12.0 feet. - http://www.weather.gov/safety/flood
Severity:  Severe    Effective:  April 19, 2026, 10:37 am      Expires:  April 20, 2026, 4:45 am
Area:  Winnebago, IL


Flood Warning issued April 19 at 10:37AM CDT by NWS Quad Cities IA IL

Summary: ...The Flood Warning continues for the following rivers in Illinois... Pecatonica River at Freeport affecting Stephenson County. Rock River at Como affecting Whiteside County. Rock River at Moline affecting Rock Island and Henry IL Counties. Rock River near Joslin affecting Rock Island, Henry IL and Whiteside Counties. * WHAT...Moderate flooding is occurring and moderate flooding is forecast. * WHERE...Rock River near Joslin. * WHEN...Until further notice. * IMPACTS...At 16.0 feet, Water affects much of Barstow Road between Barstow and Osborn. Water also affects homes in Osborn. * ADDITIONAL DETAILS... - At 9:45 AM CDT Sunday the stage was 14.6 feet and rising. - Forecast...The river is expected to rise to a crest of 16.2 feet early Wednesday morning. - Flood stage is 12.0 feet.
Severity:  Severe    Effective:  April 19, 2026, 10:37 am      Expires:  April 20, 2026, 10:45 am
Area:  Henry, IL; Rock Island, IL; Whiteside, IL


Flood Warning issued April 19 at 10:26AM CDT by NWS Milwaukee/Sullivan WI

Summary: ...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
Severity:  Severe    Effective:  April 19, 2026, 10:26 am      Expires:  April 19, 2026, 10:30 pm
Area:  Lake, IL; Kenosha, WI


Flood Warning issued April 19 at 10:26AM CDT by NWS Milwaukee/Sullivan WI

Summary: ...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...Minor flooding is occurring and moderate flooding is forecast. * WHERE...Rock River at Afton. * WHEN...Until further notice. * IMPACTS...At 11.5 feet, Water surrounds at least 2 homes near the river in the Afton area. Numerous secondary roads in the Afton area are closed to traffic. Floodwaters affect South River Road on the south side of Janesville. Traxler Park off of Memorial Drive in Janesville is flooded. * ADDITIONAL DETAILS... - At 7:00 AM CDT Sunday the stage was 10.4 feet. - Bankfull stage is 8.0 feet. - Recent Activity...The maximum river stage in the 24 hours ending at 7:00 AM CDT Sunday was 11.3 feet. - Forecast...The river is expected to rise to 11.7 feet Friday evening. Additional rises are possible thereafter. - Flood stage is 9.0 feet. - Flood History...This crest compares to a previous crest of 11.8 feet on 04/10/1959. - http://www.weather.gov/safety/flood
Severity:  Severe    Effective:  April 19, 2026, 10:26 am      Expires:  April 19, 2026, 10:30 pm
Area:  Winnebago, IL; Rock, WI


Flood Warning issued April 19 at 10:26AM CDT until April 20 at 4:00PM CDT by NWS Milwaukee/Sullivan WI

Summary: ...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...Minor flooding is occurring and minor flooding is forecast. * WHERE...Sugar River at Brodhead. * WHEN...Until tomorrow afternoon. * IMPACTS...At 6.5 feet, There is widespread flooding of lowland and agricultural land. Downstream in the Avon Bottoms area of Rock County, there is flooding in Sugar River Park. Some roads are flooded in Avon Township, including Beloit Newark Rd, about 6 miles downstream of Brodhead. In Illinois, Winslow Rd is threatened near the river between Durand and Shirland. Low lying areas of Sugar Shores Camping Resort may be inundated. * ADDITIONAL DETAILS... - At 8:00 AM CDT Sunday the stage was 6.6 feet. - Bankfull stage is 4.5 feet. - Recent Activity...The maximum river stage in the 24 hours ending at 8:00 AM CDT Sunday was 8.1 feet. - Forecast...The river is expected to fall below flood stage late tomorrow morning and continue falling to 2.0 feet Sunday, April 26. - Flood stage is 5.0 feet. - Flood History...This crest compares to a previous crest of 6.6 feet on 03/13/1989. - http://www.weather.gov/safety/flood
Severity:  Severe    Effective:  April 19, 2026, 10:26 am      Expires:  April 19, 2026, 10:30 pm
Area:  Winnebago, IL; Green, WI; Rock, WI


Flood Warning issued April 19 at 8:48AM CDT until April 20 at 3:00AM CDT by NWS Quad Cities IA IL

Summary: ...The Flood Warning continues for the following rivers in Illinois... La Moine River at Colmar affecting McDonough and Hancock Counties. * WHAT...Minor flooding is forecast. * WHERE...La Moine River at Colmar. * WHEN...Until late tonight. * IMPACTS...At 20.0 feet, Water affects the lowest portions of Lambert Road and affects Lamar Road approximately 100 feet north of the intersection with County Road 26. * ADDITIONAL DETAILS... - At 7:45 AM CDT Sunday the stage was 19.8 feet and slowly rising. - Forecast...The river is expected to rise to a crest of 20.0 feet this afternoon. It will then fall below flood stage this evening. - Flood stage is 20.0 feet.
Severity:  Severe    Effective:  April 19, 2026, 8:48 am      Expires:  April 20, 2026, 3:00 am
Area:  Hancock, IL; McDonough, IL


Freeze Warning issued April 19 at 8:44AM CDT until April 20 at 9:00AM CDT by NWS Chicago IL

Summary: * 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.
Severity:  Moderate    Effective:  April 19, 2026, 8:44 am      Expires:  April 19, 2026, 7:00 pm
Area:  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


Freeze Warning issued April 19 at 8:44AM CDT until April 20 at 9:00AM CDT by NWS Chicago IL

Summary: * 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.
Severity:  Moderate    Effective:  April 19, 2026, 8:44 am      Expires:  April 19, 2026, 7:00 pm
Area:  Northern Cook; Southern Cook