The Department of Natural Resources and other agencies predicted a severe fire season in northeast Minnesota, and over the weekend they were proved right. Fire fighters finished "mop-up," or putting out remaining embers, on wildfires near the towns of Cotton and Grand Marais late Monday. And the continued dry weather is keeping the DNR and the Forest Service on alert for more. Minnesota Public Radio's Amy Radil reports from Duluth. Almost 1,500 wildfires have already been reported in Minnesota this year, with 37,000 acres of wilderness burned. Normally fire season does not even begin until late April; this year it started in mid-March. Jean Bergerson with the Interagency Fire Center in Grand Rapids says lack of moisture is the culprit. Bergerson: We went into winter with very little p