California’s snowpack is now the deepest in decades read full article at

Drought-weary California is getting into February with deeper snowpack than it has seen in 4 many years, reflecting a wholesome increase within the state’s provide of water but in addition spurring considerations about dryness within the months forward.

Statewide Sierra snowpack was 205% of regular for the date on Wednesday, stated officers with the Division of Water Assets throughout the second snow survey of the season.

Much more promising, snowpack was 128% of its April 1 common, referring to the end-of-season date when snowpack in California is often at its deepest.

“Our snowpack is off to an incredible start, and it’s exactly what California needs to really help break from our ongoing drought,” DWR snow survey supervisor Sean de Guzman stated. The state’s snowpack is presently outpacing the winter of 1982-83 — “the wettest year on record dating back about 40 years,” he stated

Snow ranges at Phillips Station close to South Lake Tahoe, the place the month-to-month surveys are performed every winter, had been 193% of common for the date.

California’s snow is an important element of the state’s water system, offering about one-third of its provide. Snow is especially necessary within the scorching, dry months of summer season, when it slowly releases extra water because it melts.

This yr’s bounty is the direct results of the atmospheric river storms that pounded California on the finish of December and into January, De Guzman stated. The storms dumped trillions of gallons of moisture onto the state, replenishing reservoirs and burying mountain areas underneath a number of ft of powder.

It was sufficient for DWR to tentatively improve its allocation of provides for the state’s water businesses from 5% to 30%. However officers on Wednesday expressed some concern concerning the state’s latest return to dryness.

“We really don’t know, here on Feb. 1, whether or not this is the peak of our of our snowpack,” DWR director Karla Nemeth stated. She added that it’s “too soon to tell” if the moist January is sufficient to break the state’s drought.

“While today’s results are good news for water supplies, we know from experience how quickly snowpack can disappear if dry conditions return in the months ahead,” she stated.

There’s no denying January started off strong. On Monday, the UC Berkeley Central Sierra Snow Lab at Donner Pass reported that it had reached a season total of 360 inches — a number it usually averages in an entire year.

“Generally when we get to that average point, it’s much later in the year,” said lead scientist Andrew Schwartz. “We’re hitting that effectively three months ahead of schedule, which is absolutely fantastic. We’re definitely in a terrific position going forward.”

While previous years have seen denser snow — meaning more water in the snowpack — Schwartz said Wednesday that the amount of snowfall was the highest the lab had seen since its digitized records began in 1971.

Under normal conditions, there aren’t many downsides such a substantial start to the season, he said — with a couple of exceptions.

“If we go outside of normal conditions and we get something like another rain-on-snow event that’s very warm, it can produce some pretty substantial and catastrophic flooding,” he said. “Because rain likes to melt the snow.”

Another concern is that all the precipitation in California can result in additional growth of grasses, especially at lower elevations, which can lead to wildfires in the summer, Schwartz said.

But, he added, “I think the benefit of having a snowpack this big far outweighs any of those risks.”

There have been other benefits, too. The storms, which came on the heels of the state’s driest three years on record, moved all of California out of the worst two categories of drought — extreme and exceptional drought — according to the U.S. Drought Monitor. Just three months ago, 43% of the state was under those classifications.

Reservoirs also saw a boost. Lake Shasta ended January at 56% capacity, up from 33% a month prior. Lake Oroville was at 65% capacity, up from 36% at the end of December, according to state data.

However, Nemeth said there is also some concern about evaporation as the state’s atmosphere gets warmer and drier due to climate change.

In 2021, the state reported a steep decline in runoff from snow that was largely due to warm temperatures and snow seeping into dry soils, she said.

“Warming temperatures are an increased demand on our available surface water, and those are the things that we’re watching very closely that can affect our runoff into rivers, streams and reservoirs,” she said.

That hasn’t stopped many Californians from enjoying the powder. At the Sugar Bowl Resort near Lake Tahoe on Wednesday, spokesman Jon Slaughter said the snow was so deep he couldn’t see out of his second-story window.

“It’s shaping up to be a great year,” Slaughter said. “We’ve been seeing great snowfall, and we’ve got another foot coming in this weekend.”

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