MINOT, N.D. —Plastic sheeting hung over the apartment building like a shroud, stretching from the eaves to the ground. Across it, someone had spray-painted the word "pray" and drawn a line labeled "1969" — the level where floodwaters had risen the last time the Souris River climbed out of its banks in Minot.
That line stood just 2 feet above the ground. But the water is expected to climb far higher in parts of this Air Force town over the coming days as the little-known waterway swells from rain and snowmelt. It could bring the region's worst flooding in four decades.
As many as 10,000 people raced to evacuate Wednesday as water began spilling over Minot's levees. The river, which begins in the Canadian province of Saskatchewan and flows for a short distance though North Dakota, was all but certain to inundate thousands of homes and businesses during the next week.
A quarter of the city's 41,000 residents had been facing a 6 p.m. evacuation order, but emergency sirens blared at 1 p.m., warning people that the deadline had been moved up by five full hours. Before making their escape, city crews sandbagged critical structures such as the water-treatment plant, city hall and school buildings.
"I feel so bad for everybody," said Robyn Whitlow, who lives outside the evacuation zone but was helping people load their belongings. She burst into tears when the siren went off.
The deluge along the Souris was expected to easily exceed a 1969 flood, possibly reaching 13.5 feet above flood stage by Monday. The river is expected to top the historical record set in 1881 by more than 5 feet.
Nearby, Steve and Michelle Benjamin were hard at work hauling an entertainment center, desk chairs and bicycles over an emergency levee to a trailered pickup truck. It was the last of nearly a dozen loads.
Michelle Benjamin, 46, stood on the deck along the river, watching water trickle over the dike.
"Oh my God," she said as she fought back tears. "It's not easy starting over at this age."