A powerful storm system passing through the upper Midwest has flooded a small Wisconsin city where police are urging more than half of residents to leave their homes for higher ground.

Arcadia City Clerk Angela Berg says officials are going door to door to tell up to 1,500 of the city's 2,500 residents to evacuate their homes. Berg says about 15 businesses were closed downtown due to flooding.

Classes in Arcadia schools have been canceled and two highways leading into town have been closed.

Berg says two creeks burst their banks in the city, which sits along the Trempealeau (TREMP'-eh-loh) River.

Arcadia is near Wisconsin's border with Minnesota and is 100 miles southeast of Minneapolis.