Moderate to heavy snow will impact southern Oregon and northern California tonight into Friday. Snow will be wet and heavy and could cause tree limbs/branches to break. Power outages are possible. Heaviest snow will fall in the mountains above 2000 feet, and could fall in the valleys on Friday night. Be prepared for snow-covered and slippery roads and reduced visibility. Roads affected will be I-5, US Highway 97, US Highway 395, Highway 3, Highway 62, Highway 140, and more.