St Paul, Minn. — Significant rainfall across the Rainy River-Namakan River Basin from
May 19 to 21 has led to a rapid rise in lake levels. Rainy Lake will exceed the International Joint Commission’s Upper Rule Curve May 21, and is expected to continue rising in the near term as tributary flows increase. Operators at the dam, near International Falls, Minn., and Fort Frances, Canada, have opened all five canal gates and several dam gates to allow for maximum outflow.