Get ready for round two. After a fierce storm blasted the northern Sierra Nevada over the weekend, another system is slated to batter the mountain range straddling California and Nevada late Tuesday night into Wednesday. The National Weather Service reports, “This storm will not be as potent as the system that moved through Sunday,” but travelers should still be prepared for winter driving conditions with chain control in effect on Highways 80 and 5o. The NWS issued a winter weather advisory warning of slippery roads, reduced visibility and travel delays between midnight Tuesday and midnight Wednesday.