Interstate 80 has been closed since Tuesday because of snow, and the freeway has been closed several times this winter due to snow accidents, Mathews said. Snow has affected travel over the trans-Sierra passes, and with the heavy rain and runoff, rivers have been on the rise, resulting in numerous road closures in Northern California and even some evacuations in Redding and, now, the area around the Russian River.

Source: Los Angeles Times February 27, 2019 22:41 UTC