As California Finishes Driest Year on Record, Reservoirs Shrivel and Wildfire Risks Rise — With Little Relief in Sight

By Tom Yulsman | December 29, 2013 1:52 pm
Landsat Lake Shasta California Drought

This animation of Landsat images shows the shrinkage of Lake Shasta in California. One is from December of 2000, an average year for precipitation. The other is from two weeks ago. Click for a larger version. (Source: USGS/Landsat)

The pink bathtub ring that turns up around Lake Shasta in this animation of satellite images tells the tale as well as any numbers can: California is bone dry — drier than it has ever been since record-keeping began.

We’ll have to wait a couple of weeks for the official year-end precipitation numbers, but there is no question that 2013 will rank as the driest year in the state since recording-keeping began in 1894. From the start of the year through the end of this past November, 2013 brought an average of just 7.01 inches of precipitation to California. That’s a whopping 11.88 inches below normal, according to the National Climatic Data Center.

According to the most recent report of the U.S. Drought Monitor, nearly 95 percent of California is in drought, with 27 percent experiencing extreme drought.

Source: California Department of Water Resources

Source: California Department of Water Resources

Thanks to the dry conditions, Lake Shasta, a large reservoir at the northern end of the parched Central Valley, is currently at just 58 percent of average for this time of year (and 37 percent of its total capacity). The shrinkage of the lake has left a pinkish ring that’s visible in the second of the two images that comprise the animation above. The first image was captured by Landsat in December of 2000, when the reservoir’s level was about average.

Of 12 major reservoirs in the state, the levels of 10 are below average for December. Some are very significantly below average. For the details, click on the graphic to the right.

The lowest is Folsom Lake in the foothills of the Sierra Nevada mountains just west of Sacramento: It stands at less than 19 percent of capacity. This has triggered mandatory water conservation measures in the city of Folsom. The City of Sacramento, California’s capitol, may be next.

Unfortunately, the outlook from now through the end of March — the heart of the wet season for California — does not look encouraging.

California Drought Dry

Source: U.S. Climate Prediction Center

As the map above shows, the forecast from the U.S. Climate Prediction Center is for drought to persist through much of the western United States, and virtually all of California, now through the end of March.

California Governor Jerry Brown has formed an interagency task force to consider a formal statewide drought declaration. (Given what this map shows, I’m wondering what they’re waiting for.)

If the outlook turns out to be correct, this will be the third straight dry winter for California. And it would significantly raise already high wildfire risks in the state.

In mid-December, the bone dry conditions contributed to a devastating wildfire near Big Sur that destroyed dozens of homes and burned more than 900 acres. By spring, if not sooner, we should probably expect more of the same.

  • Uncle Al

    nearly 95 percent of California is in drought, with 27 percent experiencing extreme drought.” Irvine, CA lawns continue to be swamplands, courtesy of HOAs. It requires a special kind of ignorance to grow lawns in a dryland ecology. It requires a special kind of stupid to keep doing it when drinking water is threatened by persistent historic drought.

    If you like a green lawn, Delosperma spp., Lampranthus spp., and Drosanthemum spp., watering maybe twice/month. About two months/year the green will be obscured by riotous flowering, but it comes back.

    • Tom Yulsman

      Thanks for your comments on this. I agree that an enormous amount of water is wasted in California, and the West more generally. But your characterization of people as being ignorant and stupid is unproductively shrill — and simply untrue. Westerners have shown repeatedly that with the right incentives they are capable of significant savings in water use. Bottom line: Berating people will get us nowhere. Strengthening and expanding incentives is the way to go.

      • Uncle Al

        I live with 267 other homeowners under the boys’ club dictatorship of the Vista Filare HOA. It is repeatedly dunned as an abusive water consumer by the Irvine Ranch Water District. It spends $100,000/year of our money on “landscaping” that is parking lot hedges and expanses of weedy grass that go “squish” when you step on them. Homeowners are forbidden to plant and maintain their own owned land, labelled “Special Maintenance Areas.”

        “Shrill” “right incentives.” “Berating people will get us nowhere.” An advocate makes virtue of failure. The worse the cure the better the treatment – and the more that is required. Read this, then look around,

        People are nothing but ignorant and stupid – the Department of Education assures it. Beltway lobotomites progressively outlaw every coupling of price to cost in the name of “compassion.” Putting your hand on a hot stove is heavily subsidized at every level, rendering it a choice, secure vocation. The only excluded cohort is the “right incentives” wallets who pay for it all with their own blood, then receiving yet another flensing for being insufficiently incentivized.

    • Seeker6

      I am 75 and have seen similar before then the next year so much snow they wonder about avalanches. It is weather it changes with the jet stream just look at the east and mid west while you are dry. Don’t sweat it it is coming.

  • Dane Wigington

    When “DISCOVER” and other sources of data have the courage to investigate and report on the global climate engineering programs known as “geoenigneering”, the largest factor of all in the disruption of the hydrological cycle will perhaps finally be considered.

  • Daniel Swain

    The current dry spell in California is truly extraordinary, and the large-scale meteorological pattern driving it is even more unusual. There’s a long discussion (http:/ regarding the extreme persistence of the atmospheric pattern over the eastern Pacific Ocean over the past ~400 days and what the implications for California (and the rest of the west). Still no rain in sight…

    • lawgirly

      I tried your link but it did not work. Do you have another?

      • Daniel Swain

        Should be working…maybe give it another try?

  • Anechidna

    Really the question has to be is this abnormal for California and more of the southwest region or even for the western half of the US.

    The disconcerting answer no.

    The National Geographic ran an excellent article on this specific issue and sadly the news is that the tree ring data indicates that California and the West have experienced mega droughts lasting up to 200 years over a 1000 year span. First half of the 20th century was wetter than average, the Hoover and other dams were built in a time of higher than average rainfalls. La Nina El Nino cycle has been going on for millenia so sadly nothing is new.

    The online article doesn’t present the graphs depicting the calculate yearly precipitations calculated from the tree ring data but it is an excellent supporting read to this article.



ImaGeo is a visual blog focusing on the intersection of imagery, imagination and Earth. It focuses on spectacular visuals related to the science of our planet, with an emphasis (although not an exclusive one) on the unfolding Anthropocene Epoch.

About Tom Yulsman

Tom Yulsman is Director of the Center for Environmental Journalism and a Professor of Journalism at the University of Colorado, Boulder. He also continues to work as a science and environmental journalist with more than 30 years of experience producing content for major publications. His work has appeared in the New York Times, Washington Post, Audubon, Climate Central, Columbia Journalism Review, Discover, Nieman Reports, and many other publications. He has held a variety of editorial positions over the years, including a stint as editor-in-chief of Earth magazine. Yulsman has written one book: Origins: the Quest for Our Cosmic Roots, published by the Institute of Physics in 2003.


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