snow survey

Record low rainfall in October leads to just 10% of water supply requests fulfilled

With California off to a dry start for the water year, the California Department of Water Resources (DWR) announced Tuesday an initial State Water Project (SWP) allocation of 10 percent of requested supplies for the 2021 water year.

Initial allocations are based on conservative assumptions regarding hydrology and factors such as reservoir storage. Allocations are reviewed monthly and may change based on snowpack and runoff information. They are typically finalized by May.


Lake Tahoe snowpack measures 3% of average for May 1; Statewide stations at 37% of average

SOUTH LAKE TAHOE, Calif. – The fifth and final snow measurement of the year at Phillips Station took place Thursday, and results were very slim. The team from the Department of Water Resources (DWR) measured 1.5 inches of snow with a snow water equivalent (SWE) of 0.5 inches which is three percent of average for May 1.

The SWE measures the amount of water contained in the snowpack, providing a more accurate forecast of spring runoff than snow depth alone.

Sierra snowpack at 66% of April 1 average; Statewide it is 53% of average

SACRAMENTO, Calif. – The precipitation of March did not do enough to boost the snowpack in the Sierra to high figures, but it did give surveyors better figures than the 47 percent of average one month ago. The manual measurement of the snowpack at Phillips Station near Sierra-at-Tahoe showed the snow depth was 43.5 inches with a snow water equivalent (SWE) of 16.5 inches. This is 66 percent of the April 1 average at that location southwest of Lake Tahoe.

Sierra snowpack at 79% of February average

SOUTH LAKE TAHOE, Calif. - The California Department of Water Resources (DWR) conducted the second manual snow survey of the season at Phillips Station Thursday, and they found 40.5 inches of snow depth and snow water equivalent (SWE) of 14.5 inches. The snowpack at this location is 79 percent of the February average, with the rest of the state measuring in at 73 percent of average.

The Phillips Station total is 58 percent of the seasonal average.

"It's decent but below average," said Sean de Guzman, chief of DWR’s Snow Surveys and Water Supply Forecasting Section.

First snow survey of the season: 97% of average near Echo Summit, 90% of average in Sierra

SOUTH LAKE TAHOE, Calif. - The California Department of Water Resources (DWR) conducted the first manual snow survey of the season at Phillips Station Thursday, and they found 33.5 inches of snow depth and a snow water equivalent of 11 inches. The snowpack at this location is 97 percent of average, with the Sierra as a whole at 90 percent of average.

Sierra snowpack at Phillips Station: Cold, dense and 188 percent of average

PHILLIPS STATION, Calif. - In a final reading of the Sierra snowpack at Phillips Station west of Lake Tahoe, officials from the Department of Water Resources (DWR) found it to be 188 percent of average with 47 inches of snow depth and a snow water equivalent (SWE) of 27.5 inches.

Statewide, California’s snowpack sits at 31 inches of SWE, which is 144 percent of average for this time of year. Snow water equivalent is the depth of water that theoretically would result if the entire snowpack melted instantaneously.

Laser measurement of Sierra snowpack from the air being considered in Sacramento

At a price tag of $150 million, the California legislature is considering a bill that, if approved, would change the way the Sierra snowpack is measured each year.

For 90 years the snowpack has been measured at several locations including Phillips, just west of Lake Tahoe. Normally performed in front of media, staff from the California Department of Water Resources (DWR) snowshoe into a spot where they stick a pole into the snow to measure the depth and water content of the snow.

Sierra snowpack at 153% of average after snowy February

PHILLIPS, Calif. - The numbers weren't much of a surprise Thursday as the Department of Water Resources (DWR) conducted the third Phillips Station snow survey of 2019.

What they found in the spot they've been using to measure since 1941 was good news.

The manual measurement recorded 113 inches of snow depth and a snow water equivalent (SWE) of 43.5 inches, which is more than double what was recorded last month at this location.

Statewide, the Sierra Nevada snowpack is 153 percent of average for this date, thanks to several atmospheric rivers during February.

Sierra snowpack at healthy 98% of average, easing concerns of water shortage this summer

PHILLIPS, Calif. - Under blue skies Thursday, January 31,the monthly snowpack measurement was conducted in Phillips, southwest of Lake Tahoe at the base of Sierra-at-Tahoe, and its good news.

The California Department of Water Resources (DWR) snow survey team measured 50 inches of snow with a snow water equivalent (SWE) of 18 inches, almost double from a month ago.

Snowpack measures above normal for Sierra and Lake Tahoe

SOUTH LAKE TAHOE, Calif. - While the snowpack isn't epic in measurement (yet), it rose above normal with this past two week's storms that brought five feet of snow to the upper elevations.

During the January 3, 2019 monthly measurement of the snow and its water content at Phillips near Sierra-at-Tahoe, the California Department of Water Resources (DWR) found the snow to be at 80 percent of normal. The prior year at the same time was a dismal three percent of normal.

Sierra snowpack: 52% of average, water content at 49%

The water content in the Sierra snowpack was measured in Phillips April 2, 2018 and it is at 49 percent of the April 1 average.

The California Department of Water Resources snow survey team did their final physical measurement of the year at their normal location in Phillips at the intersection of Highway 50 and Sierra-at-Tahoe Road, west of Lake Tahoe.

Depth of the snow was measured at 32.1 inches and it contained 12.4 inches of water which is 49 percent of long term average for April 1 at the location.

The snowpack measured in at 52 percent of average.

VHR meeting postponed after over capacity crowd attends

SOUTH LAKE TAHOE, CALIF. - The El Dorado County Board of Supervisors meeting held in South Lake Tahoe had to come to an early end Thursday after a City fire official deemed the over 150 people crammed into the airport council chambers too many over the maximum occupancy of 112 to be safe.

Approximately 300 people filled the airport, all wanting a chance to participate in the County's discussion of amending their vacation home rental (VHR) ordinance. Those not in the council chambers filled the airport lobby.

Anemic Sierra snowpack at 14% of average

Even with the recent snowfall, the monthly measurement of the snowpack at Phillip Station west of Lake Tahoe was just 14 percent of the historical average. The Department of Water Resources (DWR) manual snow survey found little snowpack there, two months into what is typically California’s wettest three months.

Measurements at Phillips Station revealed a snow water equivalent (SWE) of 2.6 inches at Phillips as measured there since 1964. SWE is the depth of water that theoretically would result if the entire snowpack melted instantaneously.

Final measurement of snow in Sierra shows water-rich snowpack at 190% of normal

Monday was the final manual snow survey at Phillips Station in the Sierra Nevada, and the snowpack is still measured at a healthy 190 percent of the May 1 long-term average of Snow Water Equivalent (SWE) which is 14.6 inches. Today's measurement was 27.8 inches.

The survey was conducted by the Department of Water Resources (DWR).

Sierra "phenomenal" snowpack not a record, but water content at 179% of average

The Sierra Nevada snowpack continues to build during one of the wettest winters in California’s recorded history and this was evident as the monthly snow survey was conducted by the Department of Water Resources at Phillips Station near Sierra-at-Tahoe.

The snow water equivalent (SWE) measured was 179 percent of average, or 43.4 inches.

The 113 inches of snow at Phillips Station contains the fifth-highest March 1 reading of the SWE. In 1969, the record reading was 57.4 inches of snow-water content in 160.9 inches of water.

Sierra snowpack ends season at 97% of average

A "Miracle March" never materialized in the Sierra Nevada in 2016 and current snowpack shows that it would have been necessary to get totals above average, something needed to combat the drought in California.

In the last official snow survey of the year at Phillips Station near Sierra-at-Tahoe, the snow was 58.4 inches deep with a water content of 26 inches, just 97 percent of the long-term average in that location.

“While for many parts of the state there will be both significant gains in both reservoir storage and stream flow, the effects of previous dry years will

Sierra snowpack holding 130% more water than average

Recent heavy rains and snow have added much needed water to the Sierra Nevada snowpack, bringing the snow water equivalent at Phillips Station to 25.4 inches, 130 percent of the February 1 average.

Frank Gehrke, chief of the California Cooperative Snow Surveys Program, led the monthly media-oriented manual snow survey near Sierra-at-Tahoe on Wednesday, leading the group to the measuring location which recorded a snow depth of 76.2 inches.

Despite snow, Tahoe’s climate still changing

The New Year is getting off to a phenomenal start with snow falling at Lake Tahoe. It seems long ago since we’ve had snow around the lake, but as California and Nevada continue to grapple with four years of drought and water shortages, the snow couldn’t be falling at a better time.

Snowfall totals in South Lake Tahoe already surpass winter of 2014

While the storms hitting the Sierra this December are not unusual, they are very different from recent winters.

As of Christmas Day, 2015, all South Lake Tahoe ski resorts are reporting more snow than they had during the whole 2014 ski season.

Heavenly Valley - 167" of snow in November and December, to date; 87" last season.
Sierra-at-Tahoe - 173" reported, 120" last season.
Kirkwood - 194" reported, 188" last season.

Monthly snow survey canceled due to lack of snow

Due to the prospect of finding only bare ground, the Department of Water
Resources (DWR) did not conduct a May 1 snow survey at Phillips Station at the top of Echo Summit near Sierra-at-Tahoe.

“We can’t count on the Sierra snowpack to replenish our water supplies,” said California Department of Water Resources Director Mark Cowin. “Major reservoirs are dropping at a time when they typically would be filling with melted snow. We need careful, sparing use of water across the state, because we don’t know when this drought will end.”

Snowpack measures just 20% of normal in the Sierra

Those who live in the Sierra Nevada already know about the minimal snowpack and the monthly snow survey conducted near Sierra-at-Tahoe showed just that.

The water content of the snow for the state as a whole is at 19% of the average for this time of year, with the central Sierras at 20% of average.

Year's First National Water Forecast Predicts Limited Supply in Lake Tahoe and Rest of West

WASHINGTON, Jan. 15, 2014 – A limited water supply is predicted west of the Continental Divide, according to the USDA Natural Resources Conservation Service (NRCS) National Water and Climate Center (NWCC) in its first forecast of 2014. The NWCC also predicts normal water supply east of the Continental Divide and will continue to monitor, forecast and update water supplies for the next six months.

Sierra Snowpack at 20% of Normal

The first snow survey of the season found more bare ground than snow throughout the higher elevations of the state. The survey, conducted by the Department of Water Resources on Friday, found the 9.3" of snowpack at Phillips Station to be 20% of the long term average. A dismal 2.3" of water content was found.

Nevada researchers collaborate to preserve Lake Tahoe

From Tahoe’s mountaintops to the lake’s sandy bottom, scientists from the University of Nevada, Reno continue to study and find solutions to the breadth of issues that face the entire Lake Tahoe Basin. Their research is making a tangible contribution to the decisions, policies and practices that guide the basin’s environmental health.

Sierra snowpack below average after dry month

Almost every year since 1987, Chief of the California Cooperative Snow Survey Frank Gehrke has recorded a mid-winter lull during which fewer storms hit the Sierra Nevada. And 2013 was no excepti...

Good start for Sierra snowpack

The Sierra snowpack is off to a good start because of some recent storms that brought plenty of moisture to the region. It comes just in time for the first snow survey of the year.
"It's all just good news," hydrologist Dan Greenlee said. "This is fantastic."
The numbers for the first snow survey, this year, couldn't be much better. The snow amount is almost double the average for December. The snowpack is already about two-thirds of a full season's average, with three more months to go.

Sierra snowpack well above average for early season

Chief of the California Cooperative Snow Survey Frank Gehrke skied into the middle of a clearing in Phillips station Wednesday to take measurements for the California Department of Water Resourc...

Weather Window: Flooding rains broke four-year drought

Editor's note: This is the first in a two-part installment.During the second survey of the 2012 water year on Feb. 1, Frank Gehrke, chief of the California Cooperative Snow Survey program, measu...

Snow survey comes up nearly dry

SOUTH LAKE TAHOE, Calif. - While the usual crowd of reporters and television cameras gathered for the first California Department of Water Resources snow survey of the year in Phillips, one thin...

First snow survey scheduled for Jan. 3

SOUTH LAKE TAHOE, Calif. - The California Department of Water Resources will conduct this winter's first snow survey on Jan. 3, according to a Wednesday statement.Statewide electronic readings indi...

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