![](https://i.imgur.com/CLvY2jA.png")
23-10-2021, 09:43 AM
By ADAM BEAM
October 22, 2021 GMT
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For decades, California has relied on rain and snow in the winter to fill the state’s major rivers and streams in the spring, which then feed a massive system of lakes that store water for drinking, farming and energy production. But that annual runoff from the mountains is getting smaller, mostly because it’s getting hotter and drier, not just because it’s raining less.
In the spring, California’s snowpack in the Sierra Nevada mountains was 60% of its historical average. But the amount of water that made it to the reservoirs was similar to 2015, when the snowpack was just 5% of its historical average. Nearly all of the water state officials had expected to get this year either evaporated into the hotter air or was absorbed into the drier soil — a dynamic playing out across the arid Western U.S.
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California’s “water year” runs from Oct. 1 to Sept. 30. The 2021 water year, which just ended, was the second driest on record. The one before that was the fifth driest on record. Some of the state’s most important reservoirs are at record low levels. Things are so bad in Lake Mendocino that state officials say it could be dry by next summer.
Even if California were to have above-average rain and snow this winter, warming temperatures mean it still likely won’t be enough to make up for all the water California lost. This past year, California had its warmest ever statewide monthly average temperatures in June, July and October 2020.
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“We are really transitioning to a drier system so, you know, dry becomes the new normal,” she said.
https://apnews.com/article/climate-envir...1459090764
October 22, 2021 GMT
......
For decades, California has relied on rain and snow in the winter to fill the state’s major rivers and streams in the spring, which then feed a massive system of lakes that store water for drinking, farming and energy production. But that annual runoff from the mountains is getting smaller, mostly because it’s getting hotter and drier, not just because it’s raining less.
In the spring, California’s snowpack in the Sierra Nevada mountains was 60% of its historical average. But the amount of water that made it to the reservoirs was similar to 2015, when the snowpack was just 5% of its historical average. Nearly all of the water state officials had expected to get this year either evaporated into the hotter air or was absorbed into the drier soil — a dynamic playing out across the arid Western U.S.
......
California’s “water year” runs from Oct. 1 to Sept. 30. The 2021 water year, which just ended, was the second driest on record. The one before that was the fifth driest on record. Some of the state’s most important reservoirs are at record low levels. Things are so bad in Lake Mendocino that state officials say it could be dry by next summer.
Even if California were to have above-average rain and snow this winter, warming temperatures mean it still likely won’t be enough to make up for all the water California lost. This past year, California had its warmest ever statewide monthly average temperatures in June, July and October 2020.
......
“We are really transitioning to a drier system so, you know, dry becomes the new normal,” she said.
https://apnews.com/article/climate-envir...1459090764
