 I'm Libby Kellett here in the KNZZ News Center. The National Weather Service issuing a heat advisory for western Colorado and eastern Utah from 10 o'clock tomorrow morning through 9 p.m. Saturday. Temperatures between 100 and 110 degrees expected. That could cause heat illness. The Weather Service advising to drink plenty of fluids, stay in an air-conditioned room, stay out of the sun, and check up on relatives and neighbors.