 By Saturday , the storm 's status had been upgraded to " severe " . The storm was centered over eastern Lake Superior , covering the entire lake basin . The weather forecast of the Port Huron Times @-@ Herald stated that southerly winds had remained " moderate to brisk " . Northwesterly winds had reached gale strength on northern Lake Michigan and western Lake Superior , with winds of up to 60 mph ( 97 km / h ) at Duluth , Minnesota . 
