Subscribe to Axios San Francisco
Get smarter, faster with a daily look at the biggest stories in San Francisco
A fast-moving storm drops several inches of fresh snow near Echo Summit in South Lake Tahoe, California, on Feb. 8. Photo: George Rose/Getty Images
A "potentially life-threatening," historic blizzard has begun to slam the Sierra Nevada with up to 12 feet of snow — making mountain travel "extremely dangerous to impossible" from Thursday into the weekend, the National Weather Service warns.
The big picture: This "extremely potent" winter storm also threatens the higher terrain of Washington and Oregon going into Friday and Saturday, per an NWS forecast discussion that noted impacts would include three-inch-per-hour snowfall and coastal rain, and gusty winds.