LINCOLN, Neb. (KLKN) — The Lincoln-Lancaster County Health Department (LLCHD) said they urge caution during the upcoming heat. The National Weather Service has issued a heat advisory for Lincoln and Lancaster County starting noon on Saturday, July 25 and ends at 10 p.m. Monday, July 27. The heat i ndex is expected to be up to 109 degrees during this time.... ...read more read less