RENO, Nev. (AP) — The Latest on the winter storm in the Sierra and northern Nevada (all times local PST): 2:55 p.m. Rain and mud left behind by a weekend winter storm has forced the closure of several roads in Death Valley National Park and resulted in a power outage at Park Service headquarters in Furnace Creek, California, about 150 miles west of Las Vegas. Park Service spokeswoman Abby Wines said Monday that workers have been dealing with a power outage since Sunday. The problem is affecting the staff's ability to use the internet and respond to visitor questions. The park's hotels and major attractions remain open, with power.