Buffalo, IL Warnings, Watches and Advisories
NWS Active Alerts for IL - Map View
Flood Warning
Lake, IL; Kenosha, WI
Flood Warning issued September 22 at 10:53PM CDT until September 26 at 10:00AM CDT by NWS Milwaukee/Sullivan WI
...The Flood Warning continues for the following rivers in Illinois...Wisconsin... Fox River Lower Near New Munster affecting Lake and Kenosha Counties. * WHAT...Minor flooding is occurring and minor flooding is forecast. * WHERE...Fox River Lower near New Munster. * WHEN...Until Saturday morning. * IMPACTS...At 12.0 feet, Water is up to the first floor levels of some homes in the Town of Wheatland, Silver Lake and Village of Salem Lakes area along Riverside Drive and Shorewood Drive. Hoosier Creek Rd floods. * ADDITIONAL DETAILS... - At 10:00 PM CDT Tuesday the stage was 12.2 feet. - Bankfull stage is 10.0 feet. - Recent Activity...The maximum river stage in the 24 hours ending at 10:00 PM CDT Tuesday was 12.4 feet. - Forecast...The river is expected to rise to a crest of 12.2 feet just after midnight tonight. It will then fall below flood stage early Saturday morning. - Flood stage is 11.0 feet. - Flood History...This crest compares to a previous crest of 12.2 feet on 06/13/2001. - http://www.weather.gov/safety/flood
Severe
Observed
Immediate
September 22nd, 2026 10:53:00 pm CDT
September 22nd, 2026 10:53:00 pm CDT
September 23rd, 2026 11:00:00 am CDT
Flood Warning
Adams, IL; Lewis, MO
Flood Warning issued September 22 at 9:50PM CDT until September 27 at 1:00AM CDT by NWS St Louis MO
...The Flood Warning is extended for the following rivers in Missouri...Illinois... Mississippi River at Clarksville. Mississippi River at Canton. Mississippi River at Hannibal. ...The Flood Warning continues for the following rivers in Missouri...Illinois... Mississippi River at Saverton. Mississippi River at Winfield. 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 Thursday evening to late Saturday night. * IMPACTS...At 14.0 feet, Both banks begin to overflow. * ADDITIONAL DETAILS... - At 8:00 PM CDT Tuesday the stage was 12.1 feet and rising. - Forecast...The river is expected to rise above flood stage late Thursday evening to a crest of 15.1 feet early Friday morning. It will then fall below flood stage Friday evening. - Flood stage is 15.0 feet.
Severe
Observed
Immediate
September 22nd, 2026 09:50:00 pm CDT
September 22nd, 2026 09:50:00 pm CDT
September 24th, 2026 10:00:00 am CDT
Flood Warning
Pike, IL; Marion, MO
Flood Warning issued September 22 at 9:50PM CDT until September 27 at 1:00AM CDT by NWS St Louis MO
...The Flood Warning is extended for the following rivers in Missouri...Illinois... Mississippi River at Clarksville. Mississippi River at Canton. Mississippi River at Hannibal. ...The Flood Warning continues for the following rivers in Missouri...Illinois... Mississippi River at Saverton. Mississippi River at Winfield. River forecasts are based on observed precipitation and forecast precipitation for the next 24 hours. * WHAT...Minor flooding is forecast. * WHERE...Mississippi River at Hannibal. * WHEN...From late Thursday night to late Saturday night and rising. * IMPACTS...At 17.0 feet, John Hay Recreation Area on east side (inside the Illinois Sny Levee) begins flooding. * ADDITIONAL DETAILS... - At 9:15 PM CDT Tuesday the stage was 15.2 feet. - Forecast...The river is expected to rise to a crest of 17.0 feet early Friday morning. It will then fall below flood stage Friday evening. - Flood stage is 17.0 feet.
Severe
Observed
Immediate
September 22nd, 2026 09:50:00 pm CDT
September 22nd, 2026 09:50:00 pm CDT
September 24th, 2026 10:00:00 am CDT
Flood Warning
Pike, IL; Ralls, MO
Flood Warning issued September 22 at 9:50PM CDT until September 27 at 1:00PM CDT by NWS St Louis MO
...The Flood Warning is extended for the following rivers in Missouri...Illinois... Mississippi River at Clarksville. Mississippi River at Canton. Mississippi River at Hannibal. ...The Flood Warning continues for the following rivers in Missouri...Illinois... Mississippi River at Saverton. Mississippi River at Winfield. 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...From Thursday evening to Sunday afternoon. * IMPACTS...At 15.5 feet, An access road to riverside raised homes on the riverward side of the Sny levee begins to flood near this level. * ADDITIONAL DETAILS... - At 8:00 PM CDT Tuesday the stage was 13.2 feet and rising. - Forecast...The river is expected to rise above flood stage Thursday evening to a crest of 16.4 feet early Friday afternoon. It will then fall below flood stage Saturday morning. - Flood stage is 16.0 feet.
Severe
Observed
Immediate
September 22nd, 2026 09:50:00 pm CDT
September 22nd, 2026 09:50:00 pm CDT
September 24th, 2026 10:00:00 am CDT
Flood Warning
Calhoun, IL; Lincoln, MO
Flood Warning issued September 22 at 9:50PM CDT until September 28 at 1:00AM CDT by NWS St Louis MO
...The Flood Warning is extended for the following rivers in Missouri...Illinois... Mississippi River at Clarksville. Mississippi River at Canton. Mississippi River at Hannibal. ...The Flood Warning continues for the following rivers in Missouri...Illinois... Mississippi River at Saverton. Mississippi River at Winfield. River forecasts are based on observed precipitation and forecast precipitation for the next 24 hours. * WHAT...Minor flooding is forecast. * WHERE...Mississippi River at Winfield. * WHEN...From Friday morning to late Sunday night. * IMPACTS...At 27.5 feet, At this stage, Lock and Dam 25 will stockpile 200 tons of sand, 12,000 sandbags, and 10,000 square feet of polyethylene plastic as a precaution. * ADDITIONAL DETAILS... - At 9:30 PM CDT Tuesday the stage was 22.3 feet and rising. - Forecast...The river is expected to rise above flood stage late Friday morning to a crest of 26.3 feet Friday evening. It will then fall below flood stage Saturday evening. - Flood stage is 26.0 feet.
Severe
Observed
Immediate
September 22nd, 2026 09:50:00 pm CDT
September 22nd, 2026 09:50:00 pm CDT
September 24th, 2026 10:00:00 am CDT
Flood Warning
Calhoun, IL; Pike, MO
Flood Warning issued September 22 at 9:50PM CDT until September 28 at 4:00PM CDT by NWS St Louis MO
...The Flood Warning is extended for the following rivers in Missouri...Illinois... Mississippi River at Clarksville. Mississippi River at Canton. Mississippi River at Hannibal. ...The Flood Warning continues for the following rivers in Missouri...Illinois... Mississippi River at Saverton. Mississippi River at Winfield. River forecasts are based on observed precipitation and forecast precipitation for the next 24 hours. * WHAT...Minor flooding is forecast. * WHERE...Mississippi River at Clarksville. * WHEN...From late Wednesday night to Monday afternoon. * IMPACTS...At 27.2 feet, Silo Park just northwest of Clarksville off Highway 79 begins flooding. * ADDITIONAL DETAILS... - At 9:30 PM CDT Tuesday the stage was 23.0 feet and rising. - Forecast...The river is expected to rise above flood stage early Thursday morning to a crest of 26.6 feet early Friday afternoon. It will then fall below flood stage late Sunday morning. - Flood stage is 25.0 feet.
Severe
Observed
Immediate
September 22nd, 2026 09:50:00 pm CDT
September 22nd, 2026 09:50:00 pm CDT
September 24th, 2026 10:00:00 am CDT
Beach Hazards Statement
Lake; Northern Cook; Central Cook
Beach Hazards Statement issued September 22 at 9:44PM CDT until September 23 at 10:00PM CDT by NWS Chicago IL
* WHAT...High waves of 4 to 6 feet and dangerous currents expected at Lake Michigan beaches. * WHERE...Lake IL, Northern Cook and Central Cook Counties. * WHEN...Through Wednesday evening. * IMPACTS...Swimming conditions will be life threatening, especially for inexperienced swimmers.
Moderate
Likely
Expected
September 22nd, 2026 09:44:00 pm CDT
September 22nd, 2026 09:44:00 pm CDT
September 23rd, 2026 05:45:00 am CDT
Flood Warning
Hancock, IL; Clark, MO
Flood Warning issued September 22 at 9:36PM CDT until September 26 at 1:00AM CDT by NWS Quad Cities IA IL
...The National Weather Service in Quad Cities has issued a Flood Warning for the following rivers in Missouri...Illinois... Mississippi River at Gregory Landing affecting Clark and Hancock Counties. * WHAT...Minor flooding is forecast. * WHERE...Mississippi River at Gregory Landing. * WHEN...From Thursday evening to late Friday night. * ADDITIONAL DETAILS... - At 9:00 PM CDT Tuesday the stage was 12.6 feet. - Forecast...The river is expected to rise to a crest of 15.0 feet Thursday evening. It will then fall below flood stage Friday morning. - Flood stage is 15.0 feet.
Severe
Likely
Expected
September 22nd, 2026 09:36:00 pm CDT
September 22nd, 2026 09:36:00 pm CDT
September 23rd, 2026 09:45:00 pm CDT
Flood Warning
Des Moines, IA; Louisa, IA; Henderson, IL; Mercer, IL
Flood Warning issued September 22 at 9:31PM CDT until September 25 at 1:00PM CDT by NWS Quad Cities IA IL
...The Flood Warning is extended for the following rivers in Iowa... Illinois... Mississippi River at Gladstone LD18 affecting Henderson and Des Moines Counties. Mississippi River at Burlington affecting Lee, Des Moines, Hancock and Henderson Counties. ...The Flood Warning continues for the following rivers in Iowa... Illinois... Mississippi River at Keithsburg affecting Henderson, Des Moines, Louisa and Mercer Counties. * WHAT...Minor flooding is forecast. * WHERE...Mississippi River at Keithsburg. * WHEN...From Thursday afternoon to Friday afternoon. * IMPACTS...At 14.0 feet, Water affects a campground along the river at Keithsburg. * ADDITIONAL DETAILS... - At 8:30 PM CDT Tuesday the stage was 13.1 feet. - Forecast...The river is expected to rise to a crest of 14.0 feet early Thursday afternoon. It will then fall below flood stage Thursday evening. - Flood stage is 14.0 feet.
Severe
Observed
Immediate
September 22nd, 2026 09:31:00 pm CDT
September 22nd, 2026 09:31:00 pm CDT
September 23rd, 2026 09:45:00 pm CDT
Flood Warning
Des Moines, IA; Lee, IA; Hancock, IL; Henderson, IL
Flood Warning issued September 22 at 9:31PM CDT until September 26 at 7:00AM CDT by NWS Quad Cities IA IL
...The Flood Warning is extended for the following rivers in Iowa... Illinois... Mississippi River at Gladstone LD18 affecting Henderson and Des Moines Counties. Mississippi River at Burlington affecting Lee, Des Moines, Hancock and Henderson Counties. ...The Flood Warning continues for the following rivers in Iowa... Illinois... Mississippi River at Keithsburg affecting Henderson, Des Moines, Louisa and Mercer Counties. * WHAT...Minor flooding is forecast. * WHERE...Mississippi River at Burlington. * WHEN...From Wednesday evening to Saturday morning. * IMPACTS...At 15.0 feet, Agricultural flooding occurs. * ADDITIONAL DETAILS... - At 9:00 PM CDT Tuesday the stage was 14.1 feet. - Forecast...The river is expected to rise above flood stage tomorrow evening to a crest of 15.3 feet early Thursday afternoon. It will then fall below flood stage early Friday afternoon. - Flood stage is 15.0 feet.
Severe
Observed
Immediate
September 22nd, 2026 09:31:00 pm CDT
September 22nd, 2026 09:31:00 pm CDT
September 23rd, 2026 09:45:00 pm CDT
Flood Warning
Des Moines, IA; Henderson, IL
Flood Warning issued September 22 at 9:31PM CDT until September 26 at 1:00PM CDT by NWS Quad Cities IA IL
...The Flood Warning is extended for the following rivers in Iowa... Illinois... Mississippi River at Gladstone LD18 affecting Henderson and Des Moines Counties. Mississippi River at Burlington affecting Lee, Des Moines, Hancock and Henderson Counties. ...The Flood Warning continues for the following rivers in Iowa... Illinois... Mississippi River at Keithsburg affecting Henderson, Des Moines, Louisa and Mercer Counties. * WHAT...Minor flooding is forecast. * WHERE...Mississippi River at Gladstone LD18. * WHEN...From Wednesday afternoon to Saturday afternoon. * ADDITIONAL DETAILS... - At 9:00 PM CDT Tuesday the stage was 9.2 feet. - Forecast...The river is expected to rise above flood stage early tomorrow afternoon to a crest of 10.6 feet Thursday morning. It will then fall below flood stage Friday evening. - Flood stage is 10.0 feet.
Severe
Observed
Immediate
September 22nd, 2026 09:31:00 pm CDT
September 22nd, 2026 09:31:00 pm CDT
September 23rd, 2026 09:45:00 pm CDT
Flood Warning
Henry, IL; Rock Island, IL
Flood Warning issued September 22 at 9:22PM CDT until September 23 at 9:00PM CDT by NWS Quad Cities IA IL
...The Flood Warning continues for the following rivers in Iowa... Illinois... Wapsipinicon River near De Witt 4S affecting Clinton and Scott Counties. Rock River at Moline affecting Rock Island and Henry IL Counties. ...The Flood Warning is extended for the following rivers in Iowa... Cedar River near Conesville affecting Louisa and Muscatine Counties. Iowa River at Oakville affecting Louisa County. Iowa River at Wapello affecting Louisa County. Iowa River near Lone Tree affecting Johnson, Louisa and Washington Counties. English River at Kalona affecting Johnson and Washington Counties. * WHAT...Minor flooding is forecast. * WHERE...Rock River at Moline. * WHEN...Until Wednesday evening. * IMPACTS...At 12.0 feet, Water affects residences near the 27th Street bridge. Water is over portions of 60th St south of Green Valley Sports Complex and portions of 56th Ave along the north side of the river. * ADDITIONAL DETAILS... - At 8:30 PM CDT Tuesday the stage was 11.7 feet. - Forecast...The river is expected to rise to a crest of 12.0 feet early tomorrow afternoon. - Flood stage is 12.0 feet.
Severe
Observed
Immediate
September 22nd, 2026 09:22:00 pm CDT
September 22nd, 2026 09:22:00 pm CDT
September 23rd, 2026 09:00:00 pm CDT
Flood Warning
Lake, IL
Flood Warning issued September 22 at 9:16PM CDT until September 26 at 1:00AM CDT by NWS Chicago IL
...The Flood Warning is extended for the following rivers in Illinois... Des Plaines River near Gurnee affecting Lake IL County. ...The Flood Warning continues for the following rivers in Illinois... Des Plaines River near Russell affecting Lake IL County. * WHAT...Minor flooding is occurring and minor 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 late Friday night. * IMPACTS...At 7.0 feet, Forest land inundated near the river in Gurnee. * ADDITIONAL DETAILS... - At 8:30 PM CDT Tuesday the stage was 7.0 feet. - Forecast...The river is expected to rise to a crest of 7.8 feet early Thursday morning. It will then fall below flood stage Friday evening. - Flood stage is 7.0 feet. - http://www.weather.gov/safety/flood
Severe
Observed
Immediate
September 22nd, 2026 09:16:00 pm CDT
September 22nd, 2026 09:16:00 pm CDT
September 23rd, 2026 03:30:00 pm CDT
Flood Warning
Lake, IL
Flood Warning issued September 22 at 9:16PM CDT until September 27 at 1:00PM CDT by NWS Chicago IL
...The Flood Warning is extended for the following rivers in Illinois... Des Plaines River near Gurnee affecting Lake IL County. ...The Flood Warning continues for the following rivers in Illinois... Des Plaines River near Russell affecting Lake IL County. * 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 Sunday afternoon. * 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 8:30 PM CDT Tuesday the stage was 9.3 feet. - Forecast...The river is cresting and will remain around 9.3 feet through early Wednesday morning. The river is then expected to fall below flood stage Sunday morning and continue falling. - Flood stage is 7.0 feet. - http://www.weather.gov/safety/flood
Severe
Observed
Immediate
September 22nd, 2026 09:16:00 pm CDT
September 22nd, 2026 09:16:00 pm CDT
September 23rd, 2026 03:30:00 pm CDT
SAFETY and DATA MESSAGE
Do not drive vehicles through flooded areas. The water depth or fast flowing water/mud/debris from a flash flood will make road conditions unsafe. Do not rely soley on data presented here or other third-party websites - always check your official national and local weather service agency website, socials, radio and/or TV stations for making critical decisions related to weather events.
Please carefully read each posted Warning and Alert as it relates to the area(s) being affected. We may provide a wider range of issued severe weather warnings for surrounding cities and counties, so some alerts may not directly impact this location. This is done to help with preparing for severe weather that may overlap or be heading towards Buffalo.
Use the Radar Maps link provided to understand the trajectory of a storm.
Disclaimer and Conditions of Use
This information is provided AS IS and strictly for recreational, educational, and informational purposes only; we disclaim liability of any kind whatsoever, including, without limitation, liability for quality, performance, merchantability and fitness for a particular purpose arising out of the use, or inability to use the data. The information may be inaccurate or incomplete based on how well the corresponding weather station successfully or unsuccessfully reported or recorded it with the instruments which measured the weather at the time; including gaps between hours or even days. Specifically, LocalConditions.com and this data, as presented, may not and should not be used as a reference for any reason relating to legal proceedings, insurance claims, recovery, loss prevention, making predictions, or critical decisions. Lastly, the weather station may be miles away from the actual area of interest. This data may not be leeched or republished.
This severe weather alerts report is valid for ZIP code 62515, accurately covering the area of Buffalo, IL.
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Currently
| 56°F |
30.22 inHg.
Barometer 87%
Humidity NE 11.5 mph Wind |
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| Clear | ||
National Outlook
Heavy Rains and Thunderstorms for the Mid-Atlantic and Southeast - 09-21 to 09-23
Storms and Cool Temperatures Expected in the East 09-24 to 09-28
Mon Sep 21st 2026, 6:29am PDT
