Illinois Severe Flood Watch | Effective 08/13/2026 12:42

Headline: 
Flood Watch issued August 13 at 2:42PM CDT until August 14 at 10:00AM CDT by NWS Lincoln IL
Event: 
Flood Watch
Urgency: 
Future
Effective: 
August 13, 2026 - 12:42pm
Expires: 
August 13, 2026 - 8:45pm
Description: 
* WHAT...Areas of flooding caused by excessive rainfall. * WHERE...Along and north of the I-74 corridor, including the following counties, in central Illinois, Marshall, McLean, Peoria, Stark, Tazewell and Woodford. In east central Illinois, Champaign and Vermilion. In west central Illinois, Knox. * WHEN...Through Friday morning. * IMPACTS...Excessive runoff may result in flooding of rivers, creeks, and streams. Flooding may occur in poor drainage and urban areas. * ADDITIONAL DETAILS... - Rainfall of 2 to 3 inches has occurred over a large area since Wednesday morning. As thunderstorms develop in northern Illinois and sink southward overnight, another 1 to 2 inches of rain is possible, with local amounts of 3 to 4 inches. With the ground already saturated, heavy rain will run off quicker, causing areas of flooding.
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; Tazewell; McLean; Champaign; Vermilion
Forcast Office: 
NWS Lincoln IL
Sender: 
w-nws.webmaster@noaa.gov