VIDEO: Naperville Riverwalk Floods, DuPage River Rises "Rapidly"

A flash flood warning remained in effect for the Naperville area until noon Thursday after heavy rainfall drenched the city causing portions of the Riverwalk to flood.

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Naperville Takes to Social Media to Share Flooding Photos

Sidewalks were blocked off with caution tape near the downtown Riverwalk as water engulfed benches, sculptures and flooded basements of local businesses that back up to the DuPage River.

Portions of the West Branch of the DuPage River were rising "rapidly" and had reached 14.5 feet by 10:15 a.m. Thursday. The flood stage is at 11.5 feet. The river could reach 15.5 feet by the afternoon, according to the National Weather service. 

Business owners and employees along the Riverwalk began stacking sandbags behind their shops Thursday morning. The basements of Peanuts Bar, Features and the Lantern were flooded with several feet of water. 

The city of Naperville is warning residents with flooded basements to "be cautious" about electrical equipment and is offering sand as well as sandbags for residents. Materials are available at Riverview Court, Centennial Beach and the 95th Street Library. Residents need to bring their own shovels to fill bags.

Heavy rain caused Indian Prairie School District 204 officials to cancel classes Thursday as some buses were unable to travel through flooded roads. Naperville District 203 announced an early dismissal for students and North Central College canceled classes Thursday. 

The Naperville Public Library also closed early on Thursday due to the weather conditions.

More than six inches of rain fell in Naperville, but rainfall ended temporarily Thursday morning. Additional rainfall is expected during the afternoon as a low pressure system moves in from Iowa, according to the National Weather Service. 

DuPage County Stormwater Management is operating all of its larger flood control facilities due to rainfall accumulated beginning Wednesday into early Thursday.