(Stateline, NV) — Reno and the Sierra are about to get some much-needed precipitation. Storms are lining up that are forecast to drop a lot of rain and snow starting tomorrow and lasting well into next week. Reno is forecast to get several inches of rain over the next week. In the mountains, the snow level will stay high until Tuesday. That’s when Donner Summit and other passes will start to see some snow. Wednesday and Thursday are likely to see chain controls in many parts of the Sierra. It may be tough for drivers on Christmas Day, but it’ll be a welcome gift for struggling ski resorts…