Flash Flood Warning until 10:30PM Sunday 
The National Weather Service in Chicago has issued a
* Flash Flood Warning for... Southern De Kalb County in north central Illinois... La Salle County in north central Illinois... Lee County in north central Illinois...
* Until 1030 PM CDT.
* At 732 PM CDT, doppler radar and automated rain gauges indicated slow-moving, heavy thunderstorms which have produced 1 inch of rain across a narrow corridor from near Sublette to near Mendota to near Norway. These thunderstorms will likely produce rain rates of 1 to 3 inches per hour. Flash flooding is expected to begin shortly. HAZARD...Flash flooding. SOURCE...Radar and automated gauges. IMPACT...Rapid-onset flooding of creeks, streams, drainage ditches, streets, underpasses, low-lying areas, and other poor drainage areas.
* Some locations that will experience flash flooding include... Ottawa, Peru, La Salle, Sandwich, Mendota, Marseilles, Amboy, Sheridan, Shabbona, Lake Holiday, Oglesby, Seneca, Somonauk, Earlville, Waterman, North Utica, Serena, Leland, Paw Paw and Grand Ridge.
* AFFECTED AREAS: DE KALB, IL ... LA SALLE, IL ... LEE, IL
Instructions:
A Flash Flood Warning means rapid-onset flooding is imminent or may already be occurring. Persons along creeks, drainage ditches, and other waterways should take immediate precautions to protect life and property.
Address/Location
City of Ottawa IL
301 W Lafayette St
Ottawa, IL 61350
Contact
Emergency: 9-1-1
Non-emergencies: 815-433-2131