Record flooding in the Midwest and Great Plains caused at least $3 billion in damage to the region, and more than one-third of the tally is from agriculture, according to officials. The states affected by the rapid snow melt and flooding include Nebraska, Iowa, Minnesota, South Dakota and Wisconsin. More rain is forecast to hit portions of the Midwest into Saturday that could exacerbate flooding issues.Record flooding in the Midwest and Great Plains caused at least $3 billion in damage to the region, and more than one-third of the tally is from agriculture, according to officials.The states affected by the rapid snow melt and flooding include Nebraska, Iowa, Minnesota, South Dakota and Wisconsin. More rain is forecast to hit portions of the Midwest into Saturday that could exacerbate flooding issues.