Weather Warnings for Illinois

Issued by the National Weather Service

Current watches, warnings, and advisories for Illinois
Alerts Updated: April 18, 2026, 10:51 am  UTC


Flood Warning issued April 18 at 5:50AM CDT until April 21 at 4:00AM CDT by NWS Quad Cities IA IL

Summary: ...The National Weather Service in Quad Cities IA IL has issued a Flood Warning for the following rivers in Illinois... La Moine River at Colmar affecting Hancock and McDonough Counties. * WHAT...Minor flooding is forecast. * WHERE...La Moine River at Colmar. * WHEN...From this evening to early Tuesday morning. * 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 4:45 AM CDT Saturday the stage was 16.0 feet. - Forecast...The river is expected to rise above flood stage this evening to a crest of 21.9 feet early tomorrow afternoon. It will then fall below flood stage Monday evening. - Flood stage is 20.0 feet.
Severity:  Severe    Effective:  April 18, 2026, 5:50 am      Expires:  April 19, 2026, 6:00 am
Area:  Hancock, IL; McDonough, IL


Flood Warning issued April 18 at 5:48AM CDT by NWS Chicago IL

Summary: ...The Flood Warning is extended for the following rivers in Illinois... Illinois River at La Salle affecting Bureau, Putnam and La Salle Counties. For the Illinois River (Upper)...including La Salle...Minor flooding is occurring. * WHAT...Minor flooding is occurring and minor flooding is forecast. * WHERE...Illinois River from Starved Rock Lock and Dam downstream to confluence with Big Bureau Creek, including the La Salle gauge. * WHEN...From early this morning until further notice. * IMPACTS...At 20.0 feet, Agricultural areas in La Salle, Spring Valley, and Peru are inundated. 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 4:45 AM CDT Saturday the stage was 20.5 feet. - Recent Activity...The river rose into minor flood stage last night. - Forecast...The river is expected to continue rising and crest near 23.5 feet on Sunday. - Flood stage is 20.0 feet. - http://www.weather.gov/safety/flood
Severity:  Severe    Effective:  April 18, 2026, 5:48 am      Expires:  April 19, 2026, 12:00 am
Area:  Bureau, IL; La Salle, IL; Putnam, IL


Flood Warning issued April 18 at 5:44AM CDT until April 21 at 1:00PM CDT by NWS Chicago IL

Summary: ...The National Weather Service in Chicago IL has issued a Flood Warning for the following rivers in Illinois... Illinois River at Ottawa affecting La Salle County. For the Illinois River (Upper)...including Ottawa...Minor flooding is forecast. * WHAT...Minor flooding is forecast. * WHERE...Illinois River from Heritage Harbor east of Ottawa downstream to Starved Rock Lock and Dam, including the Ottawa gauge. * WHEN...From this afternoon to early Tuesday afternoon. * IMPACTS...At 462.5 feet, Roadway entrance to Allen Park threatened in Ottawa. Allen Park west boat ramp inundated in Ottawa. At 464.0 feet, Backwater causes the Fox River to reach bankfull near St. Elizabeth Medical Center in Ottawa. * ADDITIONAL DETAILS... - At 4:30 AM CDT Saturday the stage was 462.2 feet. - Forecast...The river is expected to rise above flood stage later today. - Flood stage is 463.0 feet. - http://www.weather.gov/safety/flood
Severity:  Severe    Effective:  April 18, 2026, 5:44 am      Expires:  April 18, 2026, 11:45 pm
Area:  La Salle, IL


Flood Warning issued April 18 at 5:27AM CDT until April 19 at 9:24PM CDT by NWS Milwaukee/Sullivan WI

Summary: ...The Flood Warning continues for the following rivers in Wisconsin...Illinois... Baraboo River Near Baraboo affecting Sauk and Columbia 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. Rock River Near Lake Koshkonong affecting Rock and Jefferson Counties. 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. Milwaukee River Near Cedarburg affecting Ozaukee County. Pecatonica River At Martintown affecting Green County. Root River Canal At Raymond affecting Racine County. Turtle Creek Near Clinton affecting Rock and Winnebago Counties. Wisconsin River At Portage affecting Columbia County. ...The Flood Warning is cancelled for the following rivers in Wisconsin... Wisconsin River At Wisconsin Dells affecting Sauk and Columbia Counties. * WHAT...Minor flooding is occurring and minor flooding is forecast. * WHERE...Turtle Creek near Clinton. * WHEN...Until late tomorrow evening. * IMPACTS...At 9.0 feet, Smith Road threatened in Tiffany. Portions of Sweet Allyn Park in Shopiere inundated. * ADDITIONAL DETAILS... - At 5:00 AM CDT Saturday the stage was 8.1 feet. - Bankfull stage is 6.0 feet. - Recent Activity...The maximum river stage in the 24 hours ending at 5:00 AM CDT Saturday was 8.1 feet. - Forecast...The river will rise to 9.3 feet this morning. It will then fall this morning. It will rise to 8.5 feet this evening. It will then fall below flood stage late tomorrow morning. - Flood stage is 8.0 feet. - http://www.weather.gov/safety/flood
Severity:  Severe    Effective:  April 18, 2026, 5:27 am      Expires:  April 18, 2026, 5:30 pm
Area:  Winnebago, IL; Rock, WI


Flood Warning issued April 18 at 5:27AM CDT until April 20 at 9:00PM CDT by NWS Milwaukee/Sullivan WI

Summary: ...The National Weather Service in Milwaukee/Sullivan WI has issued a Flood Warning for the following rivers in Wisconsin... Sheboygan River At Sheboygan affecting Sheboygan County. ...Forecast flooding changed from Minor to Moderate severity and increased in duration for the following rivers in Wisconsin... Root River At Racine affecting Racine County. ...Forecast flooding changed from Minor to Moderate severity for the following rivers in Wisconsin...Illinois... Sugar River At Brodhead affecting Green, Rock and Winnebago Counties. * WHAT...Minor flooding is occurring and moderate flooding is forecast. * WHERE...Sugar River at Brodhead. * WHEN...Until late Monday evening. * IMPACTS...At 8.0 feet, Floodwaters are over Highway T, Beloit Newark Rd, S Hopkins Rd, and there is flooding in Sugar River Park in the Avon Bottoms area of Rock County. There is widespread agricultural and lowland flooding in the Brodhead area. In Illinois, structures at Sugar Shores Camping Resort may be threatened. Winslow Rd is threatened near the river between Durand and Shirland. * ADDITIONAL DETAILS... - At 5:00 AM CDT Saturday the stage was 7.9 feet. - Bankfull stage is 4.5 feet. - Recent Activity...The maximum river stage in the 24 hours ending at 5:00 AM CDT Saturday was 7.9 feet. - Forecast...The river is expected to rise to a crest of 8.1 feet this morning. It will then fall below flood stage Monday afternoon. - Flood stage is 5.0 feet. - http://www.weather.gov/safety/flood
Severity:  Severe    Effective:  April 18, 2026, 5:27 am      Expires:  April 18, 2026, 5:30 pm
Area:  Winnebago, IL; Green, WI; Rock, WI


Flood Warning issued April 18 at 5:27AM CDT by NWS Milwaukee/Sullivan WI

Summary: ...The Flood Warning continues for the following rivers in Wisconsin...Illinois... Baraboo River Near Baraboo affecting Sauk and Columbia 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. Rock River Near Lake Koshkonong affecting Rock and Jefferson Counties. 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. Milwaukee River Near Cedarburg affecting Ozaukee County. Pecatonica River At Martintown affecting Green County. Root River Canal At Raymond affecting Racine County. Turtle Creek Near Clinton affecting Rock and Winnebago Counties. Wisconsin River At Portage affecting Columbia County. ...The Flood Warning is cancelled for the following rivers in Wisconsin... Wisconsin River At Wisconsin Dells affecting Sauk and Columbia Counties. * 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 4:00 AM CDT Saturday the stage was 14.4 feet. - Bankfull stage is 10.0 feet. - Recent Activity...The maximum river stage in the 24 hours ending at 4:00 AM CDT Saturday was 14.4 feet. - Forecast...The river is expected to rise to a crest of 15.0 feet early tomorrow afternoon. - Flood stage is 11.0 feet. - Flood History...This crest compares to a previous crest of 15.0 feet on 08/24/2007. - http://www.weather.gov/safety/flood
Severity:  Severe    Effective:  April 18, 2026, 5:27 am      Expires:  April 18, 2026, 5:30 pm
Area:  Lake, IL; Kenosha, WI


Flood Warning issued April 18 at 5:27AM CDT by NWS Milwaukee/Sullivan WI

Summary: ...The Flood Warning continues for the following rivers in Wisconsin...Illinois... Baraboo River Near Baraboo affecting Sauk and Columbia 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. Rock River Near Lake Koshkonong affecting Rock and Jefferson Counties. 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. Milwaukee River Near Cedarburg affecting Ozaukee County. Pecatonica River At Martintown affecting Green County. Root River Canal At Raymond affecting Racine County. Turtle Creek Near Clinton affecting Rock and Winnebago Counties. Wisconsin River At Portage affecting Columbia County. ...The Flood Warning is cancelled for the following rivers in Wisconsin... Wisconsin River At Wisconsin Dells affecting Sauk and Columbia Counties. * WHAT...Moderate flooding is occurring and major flooding is forecast. * WHERE...Rock River at Afton. * WHEN...Until further notice. * IMPACTS...At 12.2 feet, There is widespread flooding in the Afton and Janesville areas. Numerous roads and streets adjacent to the river are closed including South River Road on the south side of Janesville, several blocks of Joseph and Charles Streets, a portion of Main Street, and North Loop Road at Traxler Park. The on-ramp to Memorial Drive is closed as is a portion of Riverside Drive. Traxler Park off of Memorial Drive in Janesville is flooded and closed. * ADDITIONAL DETAILS... - At 4:00 AM CDT Saturday the stage was 11.8 feet. - Bankfull stage is 8.0 feet. - Recent Activity...The maximum river stage in the 24 hours ending at 4:00 AM CDT Saturday was 12.1 feet. - Forecast...The river is expected to fall to 12.2 feet Friday evening. - Flood stage is 9.0 feet. - Flood History...This crest compares to a previous crest of 12.2 feet on 01/23/2008. - http://www.weather.gov/safety/flood
Severity:  Severe    Effective:  April 18, 2026, 5:27 am      Expires:  April 18, 2026, 5:30 pm
Area:  Winnebago, IL; Rock, WI


Flood Warning issued April 18 at 4:31AM CDT until April 20 at 7:00AM CDT by NWS Chicago IL

Summary: ...The Flood Warning continues for the following rivers in Illinois... Kishwaukee River near Perryville affecting Winnebago County. For the Kishwaukee River...including Perryville...Minor flooding is occurring. * WHAT...Minor flooding is occurring and minor flooding is forecast. * WHERE...Kishwaukee River from Confluence with South Branch Kishwaukee River downstream to the Rock River, including the Perryville gauge. * WHEN...Until Monday morning. * IMPACTS...At 13.0 feet, Roadways threatened at Blackhawk Valley Campground south of Rockford. * ADDITIONAL DETAILS... - At 3:30 AM CDT Saturday the stage was 13.1 feet. - Forecast...The river appears to be cresting currently and should start falling this morning, eventually falling below flood stage by Sunday. - Flood stage is 12.0 feet. - http://www.weather.gov/safety/flood
Severity:  Severe    Effective:  April 18, 2026, 4:31 am      Expires:  April 18, 2026, 10:45 pm
Area:  Winnebago, IL


Flood Warning issued April 18 at 4:02AM CDT by NWS Chicago IL

Summary: ...The Flood Warning continues for the following rivers in Illinois... Pecatonica River near Shirland affecting Winnebago County. For the Pecatonica River (Lower)...including Shirland...Minor flooding is forecast. * WHAT...Minor flooding is occurring and minor flooding is forecast. * WHERE...Pecatonica River from Winnebago County line downstream to confluence with the Rock River, including the Shirland gauge. * WHEN...Until further notice. * IMPACTS...At 12.0 feet, Low-lying sections of the Winnebago County Fairgrounds are inundated. Low-lying sections of Rivers Edge Campground are inundated east of Shirland. * ADDITIONAL DETAILS... - At 3:00 AM CDT Saturday the stage was 12.5 feet. - Recent Activity...The river rose into minor flood stage Friday afternoon. - Forecast...The river is expected to crest near 14 feet over the next couple of days before falling. - Flood stage is 12.0 feet. - http://www.weather.gov/safety/flood
Severity:  Severe    Effective:  April 18, 2026, 4:02 am      Expires:  April 18, 2026, 10:15 pm
Area:  Winnebago, IL


Flood Warning issued April 18 at 3:59AM CDT until April 18 at 7:00PM CDT by NWS Chicago IL

Summary: ...The Flood Warning continues for the following rivers in Illinois... Kishwaukee River at Belvidere affecting Winnebago and Boone Counties. * WHAT...The river is currently near minor flood stage. * 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 8.0 feet, Trails in Belvidere Park threatened. At 9.0 feet, Boone-McHenry County Line Road threatened. Low-lying areas are threatened in Belvidere Park. * ADDITIONAL DETAILS... - At 3:30 AM CDT Saturday the stage was 8.7 feet. - Forecast...The river is expected to remain near flood stage this morning before continuing to fall. - Flood stage is 9.0 feet. - http://www.weather.gov/safety/flood
Severity:  Severe    Effective:  April 18, 2026, 3:59 am      Expires:  April 18, 2026, 7:00 pm
Area:  Boone, IL; Winnebago, IL


Flood Warning issued April 18 at 2:43AM CDT by NWS St Louis MO

Summary: ...The Flood Warning is extended for the following rivers in Missouri...Illinois... Mississippi River at Canton. River forecasts are based on observed precipitation and forecast precipitation for the next 24 hours. * WHAT...Minor flooding is forecast. * WHERE...Mississippi River at Canton. * WHEN...From this morning until further notice. * IMPACTS...At 16.6 feet, Front Street leading to the campground and Corps park campgrounds flood at this height. * ADDITIONAL DETAILS... - At 2:00 AM CDT Saturday the stage was 14.8 feet. - Forecast...The river is expected to rise above flood stage this morning and continue rising to 15.7 feet Friday morning. Additional rises are possible thereafter. - Flood stage is 15.0 feet.
Severity:  Severe    Effective:  April 18, 2026, 2:43 am      Expires:  April 19, 2026, 2:45 pm
Area:  Adams, IL; Lewis, MO


Flood Warning issued April 18 at 1:54AM CDT until April 18 at 8:00AM CDT by NWS Chicago IL

Summary: * WHAT...Flooding caused by excessive rainfall is occurring. * WHERE...Portions of north central and northeast Illinois, including the following counties, in north central Illinois, Boone. In northeast Illinois, Lake IL and McHenry. * WHEN...Until 800 AM CDT Saturday. * IMPACTS...Roads and streets may be flooded. Area creeks and streams are already elevated, increasing the risk of flooding due to additional rainfall. * ADDITIONAL DETAILS... - At 152 AM CDT, Doppler radar and automated rain gauges indicated heavy rain due to thunderstorms. Flooding is ongoing or expected to begin shortly. Up to 2 inches of rain have fallen. - Some locations that will experience flooding include... Waukegan, Buffalo Grove, Crystal Lake, North Chicago, Gurnee, Mundelein, Algonquin, Highland Park, Lake in the Hills, Round Lake Beach, McHenry, Belvidere, Vernon Hills, Woodstock, Zion, Huntley, Loves Park, Grayslake, Libertyville and Lake Zurich. - http://www.weather.gov/safety/flood
Severity:  Severe    Effective:  April 18, 2026, 1:54 am      Expires:  April 18, 2026, 8:00 am
Area:  Boone, IL; Lake, IL; McHenry, IL


Flood Warning issued April 18 at 1:33AM CDT by NWS Chicago IL

Summary: ...The Flood Warning continues for the following rivers in Illinois... Des Plaines River near Russell affecting Lake IL County. For the Des Plaines River...including Russell...Moderate flooding is forecast. * WHAT...Moderate flooding is occurring and moderate flooding is forecast. * 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 8.0 feet, Agricultural and park land is inundated near the river. Residential property is threatened near the river. 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 12:30 AM CDT Saturday the stage was 9.2 feet. - Recent Activity...Recent rainfall caused the river level to jump quickly from 8.7 feet this morning to now over 9 feet. - Forecast...The river is expected to crest at just over 9 feet early Saturday before gradually falling over the next few days. - Flood stage is 7.0 feet. - http://www.weather.gov/safety/flood
Severity:  Severe    Effective:  April 18, 2026, 1:33 am      Expires:  April 18, 2026, 7:45 pm
Area:  Lake, IL


Flood Warning issued April 18 at 1:32AM CDT by NWS Chicago IL

Summary: ...Forecast flooding changed from Moderate to Major severity for the following rivers in Illinois... Des Plaines River at Lincolnshire affecting Lake IL and Cook Counties. For the Des Plaines River...including Lincolnshire...Major flooding is forecast. * WHAT...Moderate flooding is occurring and major flooding is forecast. * WHERE...Des Plaines River from Townline Road in Libertyville downstream to Palatine Road in Prospect Heights, including the Lincolnshire gauge. * WHEN...Until further notice. * IMPACTS...At 15.0 feet, Structures threatened along IL-22 (Half-Day Road) just east of the river. Multiple structures threatened near and west of US-45 (Milwaukee Avenue) and Deerfield Road. Deerfield Road threatened near the river. Multiple trails inundated in Half-Day Forest Preserve. * ADDITIONAL DETAILS... - At 12:45 AM CDT Saturday the stage was 14.1 feet. - Recent Activity...Recent rainfall caused the river level to rise quickly from 13.6 feet this afternoon to now over 14 feet. - Forecast...The river is expected to rise to a crest near 15.5 feet late Saturday. It will then gradually fall through the early part of next week. - Flood stage is 12.5 feet. - http://www.weather.gov/safety/flood
Severity:  Severe    Effective:  April 18, 2026, 1:32 am      Expires:  April 18, 2026, 7:45 pm
Area:  Cook, IL; Lake, IL


Flood Warning issued April 17 at 11:24PM 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 Lake IL, Kane and McHenry Counties. For the Fox River (Illinois)...including Algonquin Lock & Dam tailwater, Montgomery, Dayton...Moderate flooding is forecast. * WHAT...Minor flooding is forecast. * 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 PM CDT Friday the stage was 13.5 feet. - Forecast...The river will remain near flood stage for the next several days. - Flood stage is 13.5 feet. - http://www.weather.gov/safety/flood
Severity:  Severe    Effective:  April 17, 2026, 11:24 pm      Expires:  April 18, 2026, 5:30 pm
Area:  Kane, IL; Kendall, IL


Flood Warning issued April 17 at 11:24PM 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 Lake IL, Kane and McHenry Counties. For the Fox River (Illinois)...including Algonquin Lock & Dam tailwater, Montgomery, Dayton...Moderate flooding is forecast. * WHAT...Moderate flooding is occurring and moderate flooding is forecast. * 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 11.5 feet, Residences threatened along Oceola Drive in Algonquin. A few residences threatened along McBridge Street in Elgin. Jayne Street and Beach Drive threatened in Algonquin. River Street threatened in East Dundee. Jerusha Avenue threatened in Elgin. Fox River Trail threatened between East Dundee and Elgin. 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 PM CDT Friday the stage was 10.9 feet. - Recent Activity...The maximum river stage in the 24 hours ending at 10:30 PM CDT Friday was 10.9 feet. The river has begun to rise due to recent rainfall. - Forecast...The river is now expected to crest near 11.5 to 12.0 feet late next week due to recent rainfall. - Flood stage is 9.5 feet. - Flood History...This crest compares to a previous crest of 11.8 feet on 05/23/2020. - http://www.weather.gov/safety/flood
Severity:  Severe    Effective:  April 17, 2026, 11:24 pm      Expires:  April 18, 2026, 5:30 pm
Area:  Kane, IL; Lake, IL; McHenry, IL


Flood Warning issued April 17 at 11:13PM CDT until April 24 at 11:01AM CDT by NWS Chicago IL

Summary: ...The Flood Warning continues for the following rivers in Illinois... Des Plaines River near Gurnee affecting Lake IL County. Des Plaines River at Lincolnshire affecting Cook and Lake IL Counties. * WHAT...Moderate flooding is occurring and moderate flooding is forecast. * WHERE...Des Plaines River from US-41 in Gurnee downstream to Townline Road in Vernon Hills, including the Gurnee gauge. * WHEN...Until Friday, April 24. * IMPACTS...At 10.0 feet, Residences threatened along Kilbourne Road and near O'Plaine Road and McClure Avenue in Gurnee. Businesses threatened along Old Grand Avenue near IL-132 in Gurnee. IL-132 (Grand Avenue) is threatened east of the river in Gurnee. * ADDITIONAL DETAILS... - At 10:30 PM CDT Friday the stage was 9.4 feet. - Recent Activity...The maximum river stage in the 24 hours ending at 10:30 PM CDT Friday was 9.4 feet. The river has begun to rise due to recent rainfall. - Forecast...The river is expected to crest near 10.0 feet on Sunday. - Flood stage is 7.0 feet. - Flood History...This crest compares to a previous crest of 9.8 feet on 05/20/2020. - http://www.weather.gov/safety/flood
Severity:  Severe    Effective:  April 17, 2026, 11:13 pm      Expires:  April 18, 2026, 5:15 pm
Area:  Lake, IL


Flood Warning issued April 17 at 10:59PM CDT until April 20 at 4:00AM CDT by NWS Chicago IL

Summary: ...The National Weather Service in Chicago IL has issued a Flood Warning for the following rivers in Illinois... Des Plaines River at Riverside affecting Cook County. For the Des Plaines River...including Riverside...Minor flooding is forecasted. * WHAT...Minor flooding is forecasted. * WHERE...Des Plaines River from Roosevelt Road in Forest Park downstream to Hodgkins, including the Riverside gauge. * WHEN...From Saturday afternoon to early Monday morning. * IMPACTS...At 8.0 feet, Park areas are inundated near the confluence of Des Plaines River and Salt Creek. * ADDITIONAL DETAILS... - At 9:45 PM CDT Friday the stage was 6.7 feet. - Forecast...The river is expected to rise above flood stage early tomorrow afternoon to a crest of 7.9 feet Sunday morning. It will then fall below flood stage late Sunday evening. - Flood stage is 7.5 feet. - http://www.weather.gov/safety/flood
Severity:  Severe    Effective:  April 17, 2026, 10:59 pm      Expires:  April 18, 2026, 5:00 pm
Area:  Cook, IL


Flood Warning issued April 17 at 10:57PM 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...Minor flooding is occurring and moderate flooding is forecast. * 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 11.5 feet, Queen Oaks Drive is threatened in Machesney Park. Lower-level of elevated structures threatened along Harbor Lights Court west of Machesney Park. Ritter Drive is threatened north of Baldwin Drive in Machesney Park. At 12.0 feet, Low-lying sections of Shorewood Park are inundated in Loves Park. At 12.5 feet, Residences threatened along Harbor Oaks Drive north of Machesney Park. Numerous residences are threatened near the river and Shore Drive. Low-lying sections of Rockford Country Club are inundated. * ADDITIONAL DETAILS... - At 9:30 PM CDT Friday the stage was 9.6 feet. - Recent Activity...The maximum river stage in the 24 hours ending at 9:30 PM CDT Friday was 9.6 feet. - Forecast...The river is expected to crest near 13 feet on Monday based upon the latest rainfall estimates. - Flood stage is 9.0 feet. - Flood History...This crest compares to a previous crest of 12.8 feet on 02/26/2018. - http://www.weather.gov/safety/flood
Severity:  Severe    Effective:  April 17, 2026, 10:57 pm      Expires:  April 18, 2026, 5:00 pm
Area:  Winnebago, IL


Flood Watch issued April 17 at 10:57PM CDT by NWS Chicago IL

Summary: ...The National Weather Service in Chicago IL has issued a Flood Watch for the following rivers in Illinois... Rock River at Rockford (Auburn Street) affecting Winnebago County. * WHAT...Flooding is possible. * WHERE...Rock River from Shorewood Park in Loves Park downstream to confluence with Kishwaukee River, including the Rockford (Auburn Street) gauge. * WHEN...From Sunday afternoon until further notice. * IMPACTS...At 5.0 feet, Low-lying areas of Blackhawk Island are inundated south of Rockford. Low-lying areas of Field Gem Park are inundated south of Rockford. At 5.5 feet, Low-lying sections of the Rock River Recreation Trail are threatened in Rockford. Riverview Mobile Home Park is threatened in Rockford. At 6.5 feet, River Bluff Court and River Court are threatened in Loves Park. Marinelli Field is threatened in Blackhawk Park. * ADDITIONAL DETAILS... - At 9:45 PM CDT Friday the stage was 4.2 feet. - Forecast...Flood stage may be reached based on the latest rainfall estimates. The river is expected to crest on Monday. - Flood stage is 6.0 feet. - http://www.weather.gov/safety/flood
Severity:  Severe    Effective:  April 17, 2026, 10:57 pm      Expires:  April 18, 2026, 5:00 pm
Area:  Winnebago


Flood Warning issued April 17 at 10:57PM 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...Minor flooding is occurring and moderate flooding is forecast. * 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 PM CDT Friday the stage was 13.2 feet. - Recent Activity...The maximum river stage in the 24 hours ending at 10:15 PM CDT Friday was 13.2 feet. - Forecast...The river is now expected to crest near 14.5 feet on Monday based upon the latest rainfall estimates. - Flood stage is 13.0 feet. - Flood History...This crest compares to a previous crest of 15.2 feet on 02/22/2018. - http://www.weather.gov/safety/flood
Severity:  Severe    Effective:  April 17, 2026, 10:57 pm      Expires:  April 18, 2026, 5:00 pm
Area:  Ogle, IL


Flood Warning issued April 17 at 10:57PM 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...Minor flooding is occurring and moderate flooding is forecast. * WHERE...Rock River from Prairie Hill Road downstream to Swanson Road in Roscoe, including the Rockton gauge. * WHEN...Until further notice. * IMPACTS...At 12.0 feet, Multiple low-lying roads threatened along the river in Roscoe. At 13.5 feet, Old River Road threatened west of Roscoe Bridge. * ADDITIONAL DETAILS... - At 9:30 PM CDT Friday the stage was 10.5 feet. - Recent Activity...The maximum river stage in the 24 hours ending at 9:30 PM CDT Friday was 10.5 feet. - Forecast...The river is now expected to crest near 13.5 feet on Monday based upon the latest rainfall estimates. - Flood stage is 10.0 feet. - Flood History...This crest compares to a previous crest of 13.5 feet on 02/26/2018. - http://www.weather.gov/safety/flood
Severity:  Severe    Effective:  April 17, 2026, 10:57 pm      Expires:  April 18, 2026, 5:00 pm
Area:  Winnebago, IL


Flood Warning issued April 17 at 10:55PM CDT by NWS Chicago IL

Summary: ...The Flood Warning continues for the following rivers in Illinois... Des Plaines River near Des Plaines affecting Cook County. For the Des Plaines River...including Des Plaines, Riverside...Minor flooding is forecast. * WHAT...Minor flooding is occurring and minor flooding is forecasted to continue. * WHERE...Des Plaines River from Palatine Road in Prospect Heights downstream to Irving Park Road in Chicago, including the Des Plaines gauge. * WHEN...Until further notice. * IMPACTS...At 17.0 feet, Central Road and Golf Road are threatened in Des Plaines. * ADDITIONAL DETAILS... - At 10:45 PM CDT Friday the stage was 16.3 feet. - Forecast...The river is expected to rise to a crest of 17.1 feet tomorrow evening. It will then be slow to fall into next week. - Flood stage is 15.0 feet. - http://www.weather.gov/safety/flood
Severity:  Severe    Effective:  April 17, 2026, 10:55 pm      Expires:  April 18, 2026, 5:00 pm
Area:  Cook, IL


Flood Watch issued April 17 at 10:38PM CDT until April 24 at 7:00AM CDT by NWS Quad Cities IA IL

Summary: ...The Flood Watch is extended for the following rivers in Illinois...Iowa... Mississippi River at Dubuque affecting Jo Daviess, Dubuque and Jackson zones. * WHAT...Flooding is possible. * WHERE...Mississippi River at Dubuque. * WHEN...From late Tuesday night to Friday, April 24. * IMPACTS...At 17.0 feet, water affects homes in Shore Acres in East Dubuque. * ADDITIONAL DETAILS... - At 9:30 PM CDT Friday the stage was 14.1 feet. - Forecast...Flood stage may be reached early Wednesday morning. - Flood stage is 17.0 feet.
Severity:  Severe    Effective:  April 17, 2026, 10:38 pm      Expires:  April 18, 2026, 10:45 pm
Area:  Dubuque; Jackson; Jo Daviess


Flood Warning issued April 17 at 10:38PM CDT by NWS Quad Cities IA IL

Summary: ...Forecast flooding changed from Minor to Moderate severity and increased in duration for the following rivers in Illinois...Iowa... Mississippi River at Muscatine affecting Rock Island, Louisa, Mercer and Muscatine Counties. Mississippi River at Ill. City LD16 affecting Rock Island and Muscatine Counties. * WHAT...Moderate flooding is forecast. * WHERE...Mississippi River at Muscatine. * WHEN...From Sunday morning until further notice. * IMPACTS...At 18.0 feet, water affects most of the Riverside Park parking lot. * ADDITIONAL DETAILS... - At 9:15 PM CDT Friday the stage was 15.1 feet. - Forecast...The river is expected to rise above flood stage Sunday morning and continue rising to 18.0 feet Friday, April 24. Additional rises are possible thereafter. - Flood stage is 16.0 feet.
Severity:  Severe    Effective:  April 17, 2026, 10:38 pm      Expires:  April 18, 2026, 10:45 pm
Area:  Louisa, IA; Muscatine, IA; Mercer, IL; Rock Island, IL


Flood Warning issued April 17 at 10:38PM CDT by NWS Quad Cities IA IL

Summary: ...The Flood Warning is extended for the following rivers in Illinois...Iowa...Missouri... Mississippi River at New Boston LD17 affecting Louisa and Mercer Counties. Mississippi River at Gregory Landing affecting Hancock and Clark Counties. Mississippi River at Rock Island LD15 affecting Scott, Rock Island and Muscatine Counties. ...The Flood Warning continues for the following rivers in Illinois...Iowa... Mississippi River at Keithsburg affecting Henderson, Des Moines, Louisa and Mercer Counties. Mississippi River at Burlington affecting Henderson, Des Moines, Lee and Hancock 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...From this evening until further notice. * IMPACTS...At 18.1 feet, Lock and Dam 17 is closed. * ADDITIONAL DETAILS... - At 10:10 PM CDT Friday the stage was 15.1 feet. - Forecast...The river is expected to rise to 17.4 feet Friday, April 24. Additional rises are possible thereafter. - Flood stage is 15.0 feet. Moderate flood stage is 16.5 feet.
Severity:  Severe    Effective:  April 17, 2026, 10:38 pm      Expires:  April 18, 2026, 10:45 pm
Area:  Louisa, IA; Mercer, IL


Flood Warning issued April 17 at 10:38PM CDT by NWS Quad Cities IA IL

Summary: ...The Flood Warning is extended for the following rivers in Illinois...Iowa...Missouri... Mississippi River at New Boston LD17 affecting Louisa and Mercer Counties. Mississippi River at Gregory Landing affecting Hancock and Clark Counties. Mississippi River at Rock Island LD15 affecting Scott, Rock Island and Muscatine Counties. ...The Flood Warning continues for the following rivers in Illinois...Iowa... Mississippi River at Keithsburg affecting Henderson, Des Moines, Louisa and Mercer Counties. Mississippi River at Burlington affecting Henderson, Des Moines, Lee and Hancock 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 Burlington. * WHEN...Until further notice. * IMPACTS...At 17.5 feet, water affects Riverview Drive in Riverview Park in Fort Madison. * ADDITIONAL DETAILS... - At 10:00 PM CDT Friday the stage was 15.9 feet. - Forecast...The river is expected to rise to 17.4 feet Friday, April 24. Additional rises are possible thereafter. - Flood stage is 15.0 feet. Moderate flood stage is 16.5 feet.
Severity:  Severe    Effective:  April 17, 2026, 10:38 pm      Expires:  April 18, 2026, 10:45 pm
Area:  Des Moines, IA; Lee, IA; Hancock, IL; Henderson, IL


Flood Warning issued April 17 at 10:38PM CDT by NWS Quad Cities IA IL

Summary: ...Forecast flooding changed from Minor to Moderate severity and increased in duration for the following rivers in Illinois...Iowa... Mississippi River at Muscatine affecting Rock Island, Louisa, Mercer and Muscatine Counties. Mississippi River at Ill. City LD16 affecting Rock Island and Muscatine Counties. * WHAT...Moderate flooding is forecast. * WHERE...Mississippi River at Ill. City LD16. * WHEN...From Tuesday afternoon until further notice. * IMPACTS...At 16.0 feet, water affects the park at Andalusia. * ADDITIONAL DETAILS... - At 10:00 PM CDT Friday the stage was 13.4 feet. - Forecast...The river is expected to rise above flood stage early Tuesday afternoon and continue rising to 16.1 feet Friday, April 24. Additional rises are possible thereafter. - Flood stage is 15.0 feet.
Severity:  Severe    Effective:  April 17, 2026, 10:38 pm      Expires:  April 18, 2026, 10:45 pm
Area:  Muscatine, IA; Rock Island, IL


Flood Warning issued April 17 at 10:38PM CDT by NWS Quad Cities IA IL

Summary: ...The Flood Warning is extended for the following rivers in Illinois...Iowa...Missouri... Mississippi River at New Boston LD17 affecting Louisa and Mercer Counties. Mississippi River at Gregory Landing affecting Hancock and Clark Counties. Mississippi River at Rock Island LD15 affecting Scott, Rock Island and Muscatine Counties. ...The Flood Warning continues for the following rivers in Illinois...Iowa... Mississippi River at Keithsburg affecting Henderson, Des Moines, Louisa and Mercer Counties. Mississippi River at Burlington affecting Henderson, Des Moines, Lee and Hancock 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 16.5 feet, water affects houses on 1st Street in Oquawka. * ADDITIONAL DETAILS... - At 9:30 PM CDT Friday the stage was 14.5 feet. - Forecast...The river is expected to continue rising to 16.3 feet Friday, April 24. Additional rises are possible thereafter. - Flood stage is 14.0 feet. Moderate flood stage is 15.5 feet.
Severity:  Severe    Effective:  April 17, 2026, 10:38 pm      Expires:  April 18, 2026, 10:45 pm
Area:  Des Moines, IA; Louisa, IA; Henderson, IL; Mercer, IL


Flood Warning issued April 17 at 10:38PM CDT by NWS Quad Cities IA IL

Summary: ...The Flood Warning is extended for the following rivers in Illinois...Iowa...Missouri... Mississippi River at New Boston LD17 affecting Louisa and Mercer Counties. Mississippi River at Gregory Landing affecting Hancock and Clark Counties. Mississippi River at Rock Island LD15 affecting Scott, Rock Island and Muscatine Counties. ...The Flood Warning continues for the following rivers in Illinois...Iowa... Mississippi River at Keithsburg affecting Henderson, Des Moines, Louisa and Mercer Counties. Mississippi River at Burlington affecting Henderson, Des Moines, Lee and Hancock Counties. Mississippi River at Gladstone LD18 affecting Henderson and Des Moines Counties. * WHAT...Minor flooding is forecast. * WHERE...Mississippi River at Gregory Landing. * WHEN...From late tonight until further notice. * IMPACTS...At 16.0 feet, water affects buildings in unprotected low areas. * ADDITIONAL DETAILS... - At 10:00 PM CDT Friday the stage was 14.9 feet. - Forecast...The river is expected to rise above flood stage just before midnight tonight and continue rising to 16.4 feet Thursday evening. Additional rises are possible thereafter. - Flood stage is 15.0 feet.
Severity:  Severe    Effective:  April 17, 2026, 10:38 pm      Expires:  April 18, 2026, 10:45 pm
Area:  Hancock, IL; Clark, MO


Flood Warning issued April 17 at 10:38PM CDT by NWS Quad Cities IA IL

Summary: ...The Flood Warning is extended for the following rivers in Illinois...Iowa...Missouri... Mississippi River at New Boston LD17 affecting Louisa and Mercer Counties. Mississippi River at Gregory Landing affecting Hancock and Clark Counties. Mississippi River at Rock Island LD15 affecting Scott, Rock Island and Muscatine Counties. ...The Flood Warning continues for the following rivers in Illinois...Iowa... Mississippi River at Keithsburg affecting Henderson, Des Moines, Louisa and Mercer Counties. Mississippi River at Burlington affecting Henderson, Des Moines, Lee and Hancock 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...From Monday evening until further notice. * IMPACTS...At 16.5 feet, water affects Credit Island Lane in Davenport and the 4700 block of River Drive in Moline. Water is at the base of the flood wall gates at the downtown Rock Island riverfront. * ADDITIONAL DETAILS... - At 10:00 PM CDT Friday the stage was 14.0 feet. - Forecast...The river is expected to rise above flood stage Monday evening and continue rising to 16.4 feet Friday, April 24. Additional rises are possible thereafter. - Flood stage is 15.0 feet. Moderate flood stage is 16.0 feet.
Severity:  Severe    Effective:  April 17, 2026, 10:38 pm      Expires:  April 18, 2026, 10:45 pm
Area:  Muscatine, IA; Scott, IA; Rock Island, IL


Flood Warning issued April 17 at 10:38PM CDT by NWS Quad Cities IA IL

Summary: ...The Flood Warning is extended for the following rivers in Illinois...Iowa...Missouri... Mississippi River at New Boston LD17 affecting Louisa and Mercer Counties. Mississippi River at Gregory Landing affecting Hancock and Clark Counties. Mississippi River at Rock Island LD15 affecting Scott, Rock Island and Muscatine Counties. ...The Flood Warning continues for the following rivers in Illinois...Iowa... Mississippi River at Keithsburg affecting Henderson, Des Moines, Louisa and Mercer Counties. Mississippi River at Burlington affecting Henderson, Des Moines, Lee and Hancock 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 10:00 PM CDT Friday the stage was 11.0 feet. - Forecast...The river is expected to rise to 12.7 feet by Friday morning. Additional rises are possible thereafter. - Flood stage is 10.0 feet. Moderate flood stage is 12 feet.
Severity:  Severe    Effective:  April 17, 2026, 10:38 pm      Expires:  April 18, 2026, 10:45 pm
Area:  Des Moines, IA; Henderson, IL


Flood Warning issued April 17 at 10:27PM CDT by NWS Lincoln IL

Summary: ...The Flood Warning continues for the following rivers in Illinois... Illinois River near Havana affecting Mason, Cass and Fulton Counties. Illinois River at Beardstown affecting Brown, Cass, Schuyler and Morgan Counties. .The following forecasts are based on observed precipitation, soil moisture conditions, and forecast precipitation. * WHAT...Minor flooding is occurring and moderate flooding is forecast. * WHERE...Illinois River near Havana. * WHEN...Until further notice. * ADDITIONAL DETAILS... - At 9:45 PM CDT Friday the stage was 15.1 feet. - Recent Activity...The maximum river stage in the 24 hours ending at 9:45 PM CDT Friday was 15.1 feet. - Forecast...The river is expected to rise to 17.3 feet early Thursday afternoon. Additional rises are possible thereafter. - Flood stage is 14.0 feet. - http://www.weather.gov/safety/flood
Severity:  Severe    Effective:  April 17, 2026, 10:27 pm      Expires:  April 18, 2026, 2:30 pm
Area:  Cass, IL; Fulton, IL; Mason, IL


Flood Warning issued April 17 at 10:27PM CDT by NWS Lincoln IL

Summary: ...The Flood Warning continues for the following rivers in Illinois... Illinois River near Havana affecting Mason, Cass and Fulton Counties. Illinois River at Beardstown affecting Brown, Cass, Schuyler and Morgan 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 9:45 PM CDT Friday the stage was 14.9 feet. - Recent Activity...The maximum river stage in the 24 hours ending at 9:45 PM CDT Friday was 15.0 feet. - Forecast...The river is expected to rise to 17.3 feet Friday, April 24. Additional rises are possible thereafter. - Flood stage is 14.0 feet. - http://www.weather.gov/safety/flood
Severity:  Severe    Effective:  April 17, 2026, 10:27 pm      Expires:  April 18, 2026, 2:30 pm
Area:  Brown, IL; Cass, IL; Morgan, IL; Schuyler, IL


Flood Warning issued April 17 at 10:19PM CDT by NWS Quad Cities IA IL

Summary: ...The Flood Warning is extended for the following rivers in Illinois... Rock River at Como affecting Whiteside County. ...The Flood Warning continues for the following rivers in Iowa... Illinois... Wapsipinicon River near De Witt 4S affecting Scott and Clinton Counties. Rock River at Moline affecting Rock Island and Henry IL Counties. Rock River near Joslin affecting Rock Island, Whiteside and Henry IL Counties. * WHAT...Minor flooding is forecast. * WHERE...Rock River at Como. * WHEN...From Sunday morning until further notice. * IMPACTS...At 12.8 feet, water begins to encroach into properties on Regan Road northeast of Como. * ADDITIONAL DETAILS... - At 10:00 PM CDT Friday the stage was 11.5 feet. - Forecast...The river is expected to rise above flood stage Sunday morning to a crest of 13.5 feet Monday evening. - Flood stage is 12.5 feet.
Severity:  Severe    Effective:  April 17, 2026, 10:19 pm      Expires:  April 18, 2026, 10:30 pm
Area:  Whiteside, IL


Flood Warning issued April 17 at 10:19PM CDT by NWS Quad Cities IA IL

Summary: ...The Flood Warning is extended for the following rivers in Illinois... Rock River at Como affecting Whiteside County. ...The Flood Warning continues for the following rivers in Iowa... Illinois... Wapsipinicon River near De Witt 4S affecting Scott and Clinton Counties. Rock River at Moline affecting Rock Island and Henry IL Counties. Rock River near Joslin affecting Rock Island, Whiteside and Henry IL Counties. * WHAT...Minor 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 PM CDT Friday the stage was 13.1 feet. - Forecast...The river is expected to continue rising to a crest of 16.1 feet Wednesday afternoon. - Flood stage is 12.0 feet.
Severity:  Severe    Effective:  April 17, 2026, 10:19 pm      Expires:  April 18, 2026, 10:30 pm
Area:  Henry, IL; Rock Island, IL; Whiteside, IL


Flood Warning issued April 17 at 10:19PM CDT by NWS Quad Cities IA IL

Summary: ...The Flood Warning is extended for the following rivers in Illinois... Rock River at Como affecting Whiteside County. ...The Flood Warning continues for the following rivers in Iowa... Illinois... Wapsipinicon River near De Witt 4S affecting Scott and Clinton Counties. Rock River at Moline affecting Rock Island and Henry IL Counties. Rock River near Joslin affecting Rock Island, Whiteside and Henry IL Counties. * WHAT...Moderate 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 PM CDT Friday the stage was 12.0 feet. - Forecast...The river is expected to rise above minor flood stage tonight and continue rising to a crest of 13.9 feet Wednesday evening. - Flood stage is 12.0 feet.
Severity:  Severe    Effective:  April 17, 2026, 10:19 pm      Expires:  April 18, 2026, 10:30 pm
Area:  Henry, IL; Rock Island, IL


Flood Warning issued April 17 at 10:19PM CDT until April 22 at 9:00AM CDT by NWS Quad Cities IA IL

Summary: ...Forecast flooding changed from Minor to Moderate severity and increased in duration for the following rivers in Illinois... Pecatonica River at Freeport affecting Stephenson County. * WHAT...Moderate flooding is forecast. * WHERE...Pecatonica River at Freeport. * WHEN...Until early Wednesday morning. * IMPACTS...At 14.0 feet, Moderate Flood Stage. Minor street flooding begins in Freeport and water affects a few back yards east of the Pecatonica River. * ADDITIONAL DETAILS... - At 9:30 PM CDT Friday the stage was 12.8 feet. - Forecast...The river is expected to rise above flood stage tonight to a crest of 14.4 feet early Sunday morning. - Flood stage is 13.0 feet.
Severity:  Severe    Effective:  April 17, 2026, 10:19 pm      Expires:  April 18, 2026, 10:30 pm
Area:  Stephenson, IL


Flood Warning issued April 17 at 10:06PM CDT by NWS St Louis MO

Summary: ...The Flood Warning continues for the following river in Missouri and Illinois... 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 28.3 feet, Near this height, Lakeview Drive becomes impassable and Kampville Road begins flooding in northern St. Charles County. * ADDITIONAL DETAILS... - At 9:30 PM CDT Friday the stage was 26.3 feet. - Forecast...The river is expected to rise to a crest of 28.3 feet Tuesday afternoon. - Flood stage is 26.0 feet.
Severity:  Severe    Effective:  April 17, 2026, 10:06 pm      Expires:  April 19, 2026, 10:15 am
Area:  Calhoun, IL; Lincoln, MO


Flood Warning issued April 17 at 10:06PM CDT by NWS St Louis MO

Summary: ...The Flood Warning continues for the following river in Missouri and Illinois... 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 forecast. * WHERE...Mississippi River at Saverton. * WHEN...Until further notice. * ADDITIONAL DETAILS... - At 6:00 PM CDT Friday the stage was 15.8 feet. - Forecast...The river is expected to rise above flood stage late tomorrow morning. - Flood stage is 16.0 feet.
Severity:  Severe    Effective:  April 17, 2026, 10:06 pm      Expires:  April 19, 2026, 10:15 am
Area:  Pike, IL; Ralls, MO


Flood Warning issued April 17 at 10:06PM CDT by NWS St Louis MO

Summary: ...The Flood Warning continues for the following river in Missouri and Illinois... 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 9:30 PM CDT Friday the stage was 26.4 feet. - Forecast...The river is expected to rise to a crest of 28.3 feet Monday evening. - Flood stage is 25.0 feet.
Severity:  Severe    Effective:  April 17, 2026, 10:06 pm      Expires:  April 19, 2026, 10:15 am
Area:  Calhoun, IL; Pike, MO


Flood Warning issued April 17 at 10:06PM CDT by NWS St Louis MO

Summary: ...The Flood Warning continues for the following river in Missouri and Illinois... 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 9:15 PM CDT Friday the stage was 17.5 feet. - Forecast...The river is expected to rise to a crest of 19.4 feet Monday afternoon. - Flood stage is 17.0 feet.
Severity:  Severe    Effective:  April 17, 2026, 10:06 pm      Expires:  April 19, 2026, 10:15 am
Area:  Pike, IL; Marion, MO


Flood Warning issued April 17 at 10:06PM CDT by NWS St Louis MO

Summary: ...The Flood Warning continues for the following river in Missouri and Illinois... 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 9:30 PM CDT Friday the stage was 16.4 feet. - Forecast...The river is expected to rise to a crest of 18.1 feet Monday afternoon. - Flood stage is 15.0 feet.
Severity:  Severe    Effective:  April 17, 2026, 10:06 pm      Expires:  April 19, 2026, 10:15 am
Area:  Pike, IL; Pike, MO


Flood Warning issued April 17 at 9:56PM CDT by NWS St Louis MO

Summary: ...The Flood Warning continues for the following river in Illinois... Illinois River at Hardin. River forecasts are based on observed precipitation and forecast precipitation for the next 24 hours. * WHAT...Minor flooding is forecast. * WHERE...Illinois River at Hardin. * WHEN...From Sunday afternoon until further notice. * IMPACTS...At 25.0 feet, Flood Stage. Lowland flooding of unprotected agricultural land begins. * ADDITIONAL DETAILS... - At 9:30 PM CDT Friday the stage was 24.6 feet. - Forecast...The river is expected to rise above flood stage early Sunday afternoon and continue rising to a crest of 26.5 feet Wednesday evening. - Flood stage is 25.0 feet.
Severity:  Severe    Effective:  April 17, 2026, 9:56 pm      Expires:  April 19, 2026, 10:00 am
Area:  Calhoun, IL; Greene, IL; Jersey, IL