Town of Winfield , Mississippi , hopes crumbling Pin Oak levee holds until river crests . Mississippi expected to crest Early Tuesday at about 80 miles above flood stage . Winfield High School becomes staging ground for relief efforts , temporary shelters . Floodwaters have damaged 5,000 homes in Mississippi .
Town of Winfield , Missouri , hopes crumbling Pin Oak levee holds until river crests . Mississippi expected to crest Saturday at more than 11 feet above flood stage . Winfield High School becomes staging ground for relief efforts , temporary shelters . Floodwaters have damaged 692 homes in Winfield .