091719 noon The amount of water flowing down the lower Missouri River this year is approaching the record set during the historic 2011 flood, and another round of flooding is expected this week after unusually heavy rains upstream. Heavy rains dumped more than four times what is normal in parts of Montana, North and South Dakota, and Nebraska last week — triggering flood warnings. The forecast for how much water will flow down the Missouri River has, in turn, jumped to 58 million acre-feet. That