Flash Flood Warning until 04:00AM Monday 
FFWLOT The National Weather Service in Chicago has issued a
* Flash Flood Warning for... Northern La Salle County in north central Illinois...
* Until 400 AM CDT.
* At 1201 AM CDT, Doppler radar and automated rain gauges indicated slow moving thunderstorms with rain rates of 1 to 2 inches per hour. Up to 2.5 inches of rain have fallen so far near Earlville. Flash flooding is ongoing or expected to begin shortly. HAZARD...Flash flooding caused by thunderstorms. 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, Mendota, Marseilles, Sheridan, Seneca, Earlville, Serena, Naplate, Dayton, Harding, Wedron, Prairie Center, Norway and Triumph.
* AFFECTED AREAS: LA SALLE, 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