state of the lake

LAKE TAHOE, Calif./Nev. - What a difference a year can make! In 2018, the annual test of Lake Tahoe's clarity value made a drastic change and improved to 70.9 feet. This is 10.5 more feet than was seen in 2017.

In the release of their annual report, the UC Davis Tahoe Environmental Research Center (TERC) in Incline Village said a return to more normal weather and streamflow conditions was responsible for this change.

In June, 2018, we found out the epic clarity of Lake Tahoe was measured at an average of 59.7 feet in 2017, a 9.5 foot drop from the previous year and 10.3 feet lower than the five-year average according to a report compiled by the Tahoe Environmental Research Center (TERC) at the University of California, Davis.

This measurement surpassed the previous lowest level of 64.1 feet which was recorded in 1997, but far below the record high of over 100 feet in the mid-1960s.

For 20 years, every August we’ve paused to reflect on our collective commitment to Lake Tahoe’s restoration at the Lake Tahoe Summit. This year, with U.S. Senator Dianne Feinstein hosting the event, the issue of climate change will be front and center. Climate change poses incredible challenges for Tahoe, affecting not only the health of its famously cold, clear waters, but the health of its expansive forests and what is to become of our $5 billion outdoor recreation-based economy.

Clarity levels at Lake Tahoe in 2016 increased in winter and decreased in summer in 2016 according to a report released on May 17 by researchers from University of California, Davis.

They said the summer values were due to the continuing effects of climate change and were so large that they outweighed the improving winter clarity which were at their highest since 2012.

This summer,the Tahoe Keys Property Owners Association (TKPOA) has been both combating aquatic invasive weeds while also testing out methods for future eradication of the pesky plants from their channels. They will be hosting a public meeting to update the community on their ongoing efforts on Tuesday, November 1 from 6:00 p.m. to 8:00 p.m. in the South Tahoe Public Utility District board room.

Lake Tahoe was at a crossroads in 1997. The lake’s famous water clarity, once measuring 100 feet, was declining year after year because of stormwater pollution from roads and developed areas and erosion from streams damaged by logging and cattle grazing.

Lake Tahoe experienced a year like no other in 2015, according to scientists from the UC Davis Tahoe Environmental Research Center in its annual Tahoe: State of the Lake Report, released this week.

Lake Tahoe is experienced warming water, a 4.8 foot drop in clarity, increased algae and a lowering water level.

Thanks to global climate change, Lake Tahoe is warming faster than ever according to the report which covers results from tests conducted on the lake in 2015 concerning water temperature, clarity, invasive species and more.

Scientists have determined that Lake Tahoe’s iconic blueness is most strongly related to algae, not clarity. In a report released today from the UC Davis Tahoe Environmental Research Center, researchers found the lower the algal concentration, the bluer the lake.

In the “Tahoe: State of the Lake Report 2015” report, research shows clarity is controlled by sediment. Blueness is controlled by algal concentration, which in turn is driven by the level of nutrients available to the algae.

By the end of the century Lake Tahoe summers may be two months longer than they were in the 1960s and the maximum temperatures may have risen by 8 degrees F. Those were part of the predictions released in the State of the Lake 2014 report.

Data collected over the last 50 years, combined with the monitoring of Lake Tahoe during the 12 months of 2013, was presented at Thursday's unveiling of the report at the Tahoe Center for Environmental Sciences (TERC) in Incline Village by Director Geoff Schladow.

Clarity levels within the iconic blue waters of Lake Tahoe continued a decadelong trend of stabilization in 2013, according to University of California, Davis, scientists who study the lake.

Data released today by the UC Davis Tahoe Environmental Research Center (TERC)and the Tahoe Regional Planning Agency reported the average annual clarity level for 2013 at 70.1 feet. While the reading represents a 5 foot decrease over the previous year, it is still well above the lowest value recorded in 1997 of 64.1 feet and above recent years' averages.

UC Davis Tahoe Environmental Research Center releases the annual Lake Tahoe: State of the Lake Report on Wednesday, August 7. Director Geoff Schladow will present the most important factors that affect lake health at a public presentation at the Tahoe Science Center in Incline Village, Nevada on August 7 at 6 p.m.

Date: Wednesday, August 7, 2013
Time: No-host bar opens 5:30 p.m. Presentation begins 6 p.m.
Location: Tahoe Center for Environmental Sciences, 291 Country Club Drive, Incline Village, NV
Cost: $5 donation suggested

The Tahoe Fund, an environmental non-profit raising funds for environmental improvement projects in the Tahoe Basin, today announced it has received an “Every Day Capacity Building Grant” from the National Environmental Education Foundation.

The grant program is made possible through the generous support of Toyota Motor Sales USA, Inc. This grant will provide resources to help the Tahoe Fund expand its online fundraising capacity and donor management capabilities. The Tahoe Fund was one of 29 grantees selected from a competitive pool of 160 applicants. The grant is for $5,000.

Lake Tahoe is one of hundreds of lakes around the world in the midst of a warming trend. The effects of climate change are starting to complicate efforts to maintain the lake’s relatively pristine state, putting Tahoe’s sapphire blue water and its overall ecological health at risk.

Lake Tahoe clarity improved in 2011, but overall has remained nearly stable since 2000, according to a summary issued by UC Davis scientists who study the lake. Data released today by the UC Davis Tahoe Environmental Research Center and the Tahoe Regional Planning Agency reported the average annual clarity level for 2011 at 68.9 feet, a 4.5-foot improvement over 2010, when average clarity levels were the second-worst on record.

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