The Metropolitan Airports Commission temporarily shut down flight operations for much of Tuesday at the St. Paul Downtown Airport while crews installed flood control barriers along the Mississippi River. St. Paul, Stillwater and other Minnesota communities have been busy preparing for major flooding on the Mississippi and St. Croix Rivers, which are swollen with water from one of the snowiest winters on record in the region. Officials are also preparing for major flooding on the Red River of the North in Fargo-Moorhead, but expect it to be manageable given the extensive flood protection measures the cities have taken.