You are now in California and the U.S. category.

State officials said Wednesday that Californians reliant on water pumped out of the Sacramento-San Joaquin Delta won’t face supply shortages, even as crews shut down a massive pumping station that serves much of Southern California for at least a month to make repairs to its intake reservoir. The repair effort involves Clifton Court Forebay, a shallow reservoir that serves as an entryway for a Delta pumping station critical to the State Water Project, the state-run water delivery network that moves water north to south through California.

A powerful and unrelenting winter blast coated the Northern Sierra Nevada this winter. Back-to-back storms buried the Lake Tahoe area in snow, crippling transportation, shuttering ski resorts, knocking out power and disrupting the daily lives of thousands. In the first three weeks of January alone, the region received nearly a full winter’s worth of snow, and then came February, and the Sierra Nevada was slammed yet again with moisture-packed storms fueled by weather systems known as atmospheric rivers.

Mitch Brown jammed the blade of his loader into a two-story pile of snow outside Donner Ski Shop, the sports rental store he runs. From there, Old Highway 40 toward bustling ski resorts was lined with walls of snow more than 20 feet high. “It snowed nearly 24 feet in 12 days,” Brown said recently. “We’ve been working 18-hour days to clear it. This winter’s bumper crop of snow — on the heels of the worst drought in 500 years — underscores the threat to this central source of water for western Nevada County and most of California.

Although it’s a bit of a surprise that precipitation in the Sacramento River watershed is running more than 200 percent of average, the fact that we have returned to wetter than average years after a run of drier than average years is not. This has been the pattern in California for over 150 years, and this pattern is unlikely to change in the next 150. But the State Water Project and the federal Central Valley Project were not designed to accommodate this climate variability.

California water officials, still struggling with fixes at Oroville Dam, will have to temporarily shut down the pumping station that delivers water to much of Southern California and Silicon Valley after discovering damage at another key state reservoir. The state Department of Water Resources confirmed Tuesday that operators discovered damage to the intake structure at the Clifton Court Forebay, a nearly two-mile-wide reservoir that stores water for the State Water Project pumping plant in the Sacramento-San Joaquin Delta near Tracy. Repairs will begin Wednesday. It’s not clear how long they will last.