Rapidly rising water overtook dams and forced the evacuation of about 10,000 people in central Michigan, where flooding struck communities along rain-swollen waterways and the governor said one downtown could be “under approximately 9 feet of water” by Wednesday. For the second time in less than 24 hours, families living along the Tittabawassee River and connected lakes in Midland County were ordered Tuesday evening to leave home. The National Weather Service urged anyone near the river to seek higher ground following “castastrophic dam failures” at the Edenville Dam, about 140 miles (225 kilometers) north of Detroit, and the Sanford Dam, about seven miles (11 kilometers) downriver.