 A powerful winds have whipped up big waves along the shores of Lake Superior, flooding a business district and causing power outages. The National Weather Service says a Canadian freighter measured a wind gust of 86 miles per hour near Castle Danger north of Duluth Wednesday afternoon. Hurricane force wind begins at 74 miles per hour. The gale force winds are creating waves as high as 14 to 18 feet. The Canal Park Business District in Duluth near the lake was flooded. The high wind knocked out service for about 4,700 Minnesota power customers in the Duluth area Wednesday morning. A lake shore flooding warning was in effect until 4pm today for Duluth and Superior as well as Ashland in Wisconsin. If you enjoyed this segment of Lakeland News, please consider making a tax-deductible contribution to Lakeland PBS.