California's Eastern Sierra Got Hammered With Snow This Weekend, and Mammoth Mountain Is Loving It

If you were paying attention to California weather over the weekend, you saw something wild happen in the mountains. A spring storm absolutely dumped on the eastern Sierra Nevada, dropping more than 3.5 feet of snow and giving Mammoth Mountain the gift of an extended season. This comes just weeks after a brutal March heat wave torched most of the state's snowpack and forced resorts to shutter. More snow could still be on the way Monday.

The Snow Situation Was Dire Before This Storm Hit

Here's the context that makes this weekend's dump actually matter. On April 1, the Sierra snowpack, which feeds about one-third of California's water supply, was sitting at just 18% of average. That's the second-lowest reading for that date on record, according to measurements taken in the mountains near Lake Tahoe. The UC Berkeley Central Sierra Snow Lab recorded 42.5 inches between Friday and Sunday, which helped create a late-season snowpack when the state desperately needed it. Even so, the lab noted on social media that "record warm temps this winter means that we're still well below average for the water year."

The Storm Brought More Than Just Snow

This wasn't just a quiet dusting. Interstate 80 in Northern California shut down Sunday because of blizzard conditions, with chain controls still in place Monday on that crucial route between San Francisco and Lake Tahoe. Beyond the snow, the system threw strong winds, heavy rain, and hail at multiple areas. A tornado even touched down near Sacramento on Sunday, though the National Weather Service reported no damage.

At Mammoth Mountain itself, 11 lifts were running Monday as skies cleared. The resort warned that while the fresh powder looks inviting, hazards like dirt, rocks, and bushes remain just below the surface, so skiers and riders need to stay cautious and off trail. Another couple inches of snow is possible Monday.

A Bigger Picture Problem Persists

The West has been getting hammered by a warm winter followed by early spring record heat that's destroying the snowpack across multiple states. Colorado reported its worst snowpack since statewide recordkeeping began in 1941. Water officials are sounding the alarm that these numbers signal water shortages could get worse if Mother Nature doesn't cooperate with more snow soon. Cities are already imposing water-use restrictions, ranchers are sweating how they'll feed cattle, and the threat of devastating wildfires is hanging over everything.

This article was created with AI assistance and reviewed by Seattle On Tap editorial staff. Always verify information with official team sources.