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While not especially heavy, the rain Monday through Wednesday night will be falling on the already flooding Missouri River and nearby tributaries.
Things look dicer farther out.
This map shows 6 to 9 inches of water (pinks) locked up in the snow cover over the northern Great Plains and Upper Midwest.
In addition to people losing their homes and the considerable disruption to transportation, there is little doubt corn planting is going to be delayed in a number of areas.