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Chapin, IL Warnings, Watches and Advisories

SAFETY and DATA MESSAGE

When a severe thunderstorm warning is issued, the storm may produce damaging winds, large hail, dangerous lightning, and heavy rain. In some cases, heavy rainfall produced by a severe storm can also lead to flash flooding. 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 Chapin.

Use the Radar Maps link provided to understand the trajectory of a storm.

NWS Active Alerts for IL - Map View

State: IL Total alerts: 4 Updated: Aug 29, 2026 1:13pm CDT

Flood Warning

Area
Brown, IL; Cass, IL; Morgan, IL; Schuyler, IL
Flood Warning issued August 29 at 10:41AM CDT until August 29 at 4:00PM CDT by NWS Lincoln IL

...The Flood Warning continues for the following rivers in Illinois... Illinois River at Beardstown affecting Schuyler, Brown, Cass 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 this afternoon. * IMPACTS...At 14.0 feet, Minor flooding begins to agricultural areas not protected by levees. * ADDITIONAL DETAILS... - At 9:45 AM CDT Saturday the stage was 14.1 feet. - Recent Activity...The maximum river stage in the 24 hours ending at 9:45 AM CDT Saturday was 14.7 feet. - Forecast...The river is expected to fall below flood stage this afternoon and continue falling to 10.5 feet Saturday, September 05. - Flood stage is 14.0 feet. - http://www.weather.gov/safety/flood

Flood Warning

Area
Lawrence, IL; Wabash, IL; Knox, IN
Flood Warning issued August 29 at 10:11AM CDT until August 30 at 9:10AM CDT by NWS Indianapolis IN

...The Flood Warning is extended for the following rivers in Illinois...Indiana... Wabash River at Vincennes ...The Flood Warning continues for the following rivers in Illinois...Indiana... Wabash River at Hutsonville Legacy Power Plant Site Wabash River at Riverton .Minor flooding continues on the Wabash River from Hutsonville down to Vincennes. The river has crested. Flooding should come to an end on the Wabash over the weekend. * WHAT...Minor flooding is occurring and minor flooding is forecast. * WHERE...Wabash River at Vincennes. * WHEN...Until Sunday morning. * IMPACTS...At 17.0 feet, Considerable agricultural flooding extends from just north of the junction of Illinois 33 with Business 50 to the St. Francesville, Illinois area. River Road from Lincoln Memorial Bridge to Billett Rd is impassable. Extensive seep water forms behind Illinois levees extending from Russellville to U.S. Highway 50. Flooding of agricultural land begins in Knox County Indiana west of the railroad extending for the Oaktown area to the north side of Vincennes. Extensive flooding of Small Creek. * ADDITIONAL DETAILS... - At 9:45 AM CDT /10:45 AM EDT/ Saturday the stage was 17.1 feet. - Bankfull stage is 10.0 feet. - Recent Activity...The maximum river stage in the 24 hours ending at 9:45 AM CDT /10:45 AM EDT/ Saturday was 18.1 feet. - Forecast...The river is expected to fall below flood stage late this evening and continue falling to 4.4 feet Tuesday, September 08. - Flood stage is 16.0 feet. - http://www.weather.gov/safety/flood

Flood Warning

Area
Crawford, IL; Lawrence, IL; Knox, IN; Sullivan, IN
Flood Warning issued August 29 at 10:11AM CDT until August 30 at 10:00AM CDT by NWS Indianapolis IN

...The Flood Warning is extended for the following rivers in Illinois...Indiana... Wabash River at Vincennes ...The Flood Warning continues for the following rivers in Illinois...Indiana... Wabash River at Hutsonville Legacy Power Plant Site Wabash River at Riverton .Minor flooding continues on the Wabash River from Hutsonville down to Vincennes. The river has crested. Flooding should come to an end on the Wabash over the weekend. * WHAT...Minor flooding is forecast. * WHERE...Wabash River at Hutsonville Legacy Power Plant Site. * WHEN...Until Sunday morning. * IMPACTS...At 16.0 feet, Old Darwin Road and a few low rural roads between York and Hutsonville, Illinois begin to flood. Agricultural flooding begins along portions of the river. * ADDITIONAL DETAILS... - There is no current observed data. - Bankfull stage is 12.0 feet. - Forecast...The river is expected to fall below flood stage late this evening and continue falling to 6.6 feet Tuesday, September 08. - Flood stage is 16.0 feet. - http://www.weather.gov/safety/flood

Flood Warning

Area
Crawford, IL; Lawrence, IL; Knox, IN; Sullivan, IN
Flood Warning issued August 29 at 10:11AM CDT until August 31 at 1:00PM CDT by NWS Indianapolis IN

...The Flood Warning is extended for the following rivers in Illinois...Indiana... Wabash River at Vincennes ...The Flood Warning continues for the following rivers in Illinois...Indiana... Wabash River at Hutsonville Legacy Power Plant Site Wabash River at Riverton .Minor flooding continues on the Wabash River from Hutsonville down to Vincennes. The river has crested. Flooding should come to an end on the Wabash over the weekend. * WHAT...Minor flooding is occurring and minor flooding is forecast. * WHERE...Wabash River at Riverton. * WHEN...Until Monday afternoon. * IMPACTS...At 18.0 feet, Extensive lowland flooding is in progress. High water surrounds many river cabins. Access to most river cabins is by boat only. Levees begin to protect farmland. Extensive flooding of Leaverton Park occurs in Palestine, Illinois. * ADDITIONAL DETAILS... - At 10:00 AM CDT /11:00 AM EDT/ Saturday the stage was 18.1 feet. - Bankfull stage is 10.5 feet. - Recent Activity...The maximum river stage in the 24 hours ending at 10:00 AM CDT /11:00 AM EDT/ Saturday was 19.4 feet. - Forecast...The river is expected to fall below flood stage early Monday morning and continue falling to 5.1 feet Tuesday, September 08. - Flood stage is 15.0 feet. - http://www.weather.gov/safety/flood

For more official information about severe storms and how to stay safe, visit the National Weather Service's Severe Thunderstorm Safety page. We encourage you to also monitor Excessive Rainfall Forecasts on their Weather Prediction Center website.

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Currently

Overcast 86°F
30.04 inHg.
Barometer
41%
Humidity
S 20.2 mph
Wind
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