LODGE GRASS, Mont. —Rain-swollen rivers that have swamped Montana towns could keep flooding the region for another month or more as melting mountain snow delivers a second slug of water to the soggy Northern Plains.
Heavy rains are forecast through the holiday weekend. Warm weather after that is expected to kick off the melt of snows that in some areas are twice as deep as average.
Even with rivers already raging from record rainfalls, authorities have started dumping massive volumes of water from low-land reservoirs to get ready for the annual spring rise.
Those releases are predicted to flood homes downstream in the Dakotas, and possibly in Iowa, Nebraska, Kansas and Missouri.
"There is going to be record flooding all along the Missouri River," said Paul Johnson, director of the Douglas County, Neb., Emergency Management Agency. "This isn't going to return to normal anytime soon."