UPDATE: Levee ruptures send floodwater toward Hamburg, Iowa, and Big Lake, Mo.

Monday, June 13, 2011 | 7:40 p.m. CDT; updated 8:10 p.m. CDT, Monday, June 13, 2011

HAMBURG, Iowa — The swollen Missouri River ruptured two levees in northwest Missouri on Monday, sending torrents of floodwater over rural farmland toward a small town in Iowa and a resort community in Missouri.