A relentless snowstorm has been affecting California’s Sierra Nevada since Thursday, resulting in the closure of long stretches of Interstate 80 and prompting residents to seek shelter due to heavy snowfall and strong wind gusts. The National Weather Service has issued blizzard and winter storm warnings, with over 3 inches of snow falling per hour and winds exceeding 100 mph. The storm is expected to taper off on Sunday, but another system is forecasted for Monday. Blizzard and winter storm warnings continue in California and Nevada, with extreme avalanche danger in the central Sierra region. Travel is strongly advised against due to hazardous road conditions caused by snowfall and snowslides. Additionally, thousands of power customers have experienced storm-related outages, with efforts underway to safely and promptly restore power.