The National Weather Service has confirmed that a tornado touched down in Jefferson County earlier this afternoon.The twister brought winds of 105-110 miles per hour to southeast Jefferson County, damaging homes and knocking out power for thousands of residents.As of 5:00, under 1,000 homes and businesses were without power. Full restoration is expected within an hour. Another line of showers is expected to pass through Louisville tonight, but the weather service does not expect any more severe storms.