Illinois Severe Flood Watch | Effective 08/19/2026 00:35

Headline: 
Flood Watch issued August 19 at 2:35AM CDT until August 20 at 1:00AM CDT by NWS Lincoln IL
Event: 
Flood Watch
Urgency: 
Future
Effective: 
August 19, 2026 - 12:35am
Expires: 
August 19, 2026 - 1:00pm
Description: 
* WHAT...Flooding caused by excessive rainfall is possible. * WHERE...Portions of central, east central, and west central Illinois, including the following counties, in central Illinois, De Witt, Logan, Macon, Marshall, Mason, McLean, Menard, Peoria, Piatt, Stark, Tazewell and Woodford. In east central Illinois, Champaign and Vermilion. In west central Illinois, Fulton and Knox. * WHEN...From 1 PM CDT this afternoon through late tonight. * IMPACTS...Excessive runoff may result in flooding of rivers, creeks, streams, and other low-lying and flood-prone locations. Creeks and streams may rise out of their banks. Flooding may occur in poor drainage and urban areas. * ADDITIONAL DETAILS... - A narrow band of showers and/or thunderstorms are forecast to set up in a west-east orientation across central IL, where the flooding and very heavy rain occurred late last week, this afternoon into the late evening. Pockets of 2-5 inches are possible locally. - http://www.weather.gov/safety/flood
Instruction: 
You should monitor later forecasts and be alert for possible Flood Warnings. Those living in areas prone to flooding should be prepared to take action should flooding develop.
Area Description: 
Knox; Stark; Peoria; Marshall; Woodford; Fulton; Tazewell; McLean; Mason; Logan; De Witt; Piatt; Champaign; Vermilion; Menard; Macon
Forcast Office: 
NWS Lincoln IL
Sender: 
w-nws.webmaster@noaa.gov