SHEBOYGAN, WI (WHBL) - It's supposed to warm up considerably next week but some residents in the city of Sheboygan are not out of the woods yet. The Sheboygan Water Utility has warned that colder temperatures are still forecast for Friday and Saturday night. Superintendent Joe Trueblood is urging customers to run a stream of water through the night time hours. Trueblood said utility crews continue to work repairing broken water mains and thawing frozen water laterals. He said as of Friday they were dealing with 5 water main breaks and 10 frozen laterals. Trueblood said customers who have experienced a frozen lateral or received a robo-call should maintain a pencil-sized stream of water flowing until temperatures moderate. He said a frozen lateral can take 1 to 3 hours to thaw using an electrical welder and the utility is facing a backlog.