9:45 p.m. update: (Traill County, North Dakota) -- An Xcel Energy spokesman tells WZFG/WDAY Radio News that areas of the City of Mayville, in Traill County, will likely be without power until sometime Sunday. Matt Lindstrom, spokesman for Xcel Energy, tells WZFG/WDAY Radio News that the cause of the outage was an equipment issue at the substation located in the area of 2nd Avenue Northeast. Approximately 450 customers were still without power, he said. To correct the issue, a temporary transformer will be installed; Lindstrom says that will not happen until sometime on Sunday. Traill County Assistant Emergency Manager Ben Gates tells WZFG/WDAY Radio News that an emergency medical-only shelter will be available on an as-needed basis at the Mayville Armory. Anyone needing access to the medical-only shelter is asked to call Sanford Mayville Medical Center at 701-788-3800 or Traill County Dispatch at 701-636-4510.