Report: Lake Superior has made a big jump

The International Lake Superior Board of Control reported Friday the level of Lake Superior jumped 23 centimetres in May. That's more than twice the normal monthly increase and the second most for any month since 1918.

Lake Superior usually rises only about 10 centimetres each May. But thanks to late snow and a cold spring that held back runoff, May more than made up for the difference.

The lake now sits just 18 centimetres below its long-term average for June 1. It is a full 8 centimetres above the level at this time last year.

The Duluth News Tribune reports Lakes Huron and Michigan also continued their rise from near-record lows in late winter.