HAMILTON COUNTY, Tenn. (WDEF)- Snow is expected to hit the Tennessee Valley later this week. City officials are urging folks to plan ahead before the winter storm arrives!. “We figured that as closer as the the actual time of the event, we just want to make sure that we are prepared ahead of time. Our highway departments are out grinding and and getting ready for the the roads to be covered with snow,” said Amy Maxwell, PIO for Hamiulton County Emergency Management.