WELCOME TO CALIFORNIA DATA EXCHANGE CENTER
The California Data Exchange Center (CDEC) installs, maintains, and operates an extensive hydrologic data collection network including automatic snow reporting gages for the Cooperative Snow Surveys Program and precipitation and river stage sensors for flood forecasting.
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SWE is the depth of water that theoretically would result if the entire snowpack melted instantaneously. That measurement is more important than depth in evaluating the status of the snowpack. On average, the snowpack supplies about 30 percent of California's water needs as it melts in the spring and early summer.
Once flows have been reduced, DWR will hold, monitor, and evaluate whether to reduce outflows further to support construction efforts.
The continued success of lowering reservoir levels has provided room to accommodate incoming water and lake levels will continue to fall.
Approximately 20 percent of Lake Oroville remains empty, and DWR officials say there is sufficient storage room to capture the inflow of the rain showers expected through the rest of the week. The reservoir, 3.5 million acre-feet at full capacity, now holds 2.8 million acre-feet, as prescribed by flood control operations.
The exhibits, entitled Conservation: The California Lifestyle, are on display over the next 17 days for State Fair attendees who want to learn how to embrace water conservation as a way of life.
The flow in the section of the Feather River that runs through Oroville increased this week from 3,200 cubic feet per second (cfs) to 4,000 cfs as the Department of Water Resources releases water from Lake Oroville to meet water supply needs downstream. Visitors to the river are urged to wear properly fitting life jackets and be aware of the increased risk from higher, stronger currents.
Dominion?s RE Camelot Solar Photovoltaic Project near Mojave, CA in southeastern Kern County went into full commercial operation and began delivering power to the California Independent System Operator grid to meet SWP pump loads on December 23, 2014.
Carol Rische, General Manager for Humboldt Bay Municipal Water District (HBMWD) said, We are happy to say that Ruth Lake went from 69% to 100% capacity since the end of October, 2014. Ruth Lake typically fills during the December - January time frame. This is the fifteenth earliest fill date in the District's history. We know from past experience that Ruth Lake fills from just a few good storms. The latest series of storms are just what we needed to fill the reservoir. Last season given the drought, Ruth Lake filled much later on March 06, which was the second latest fill date.
Rische added, We are very happy with Humboldt County's current condition and hope that other reservoirs continue to fill for the benefit of California's urban, agricultural and environmental interests who are still suffering the drought.
HBMWD is located at 828 Seventh Street in Eureka, http://www.hbmwd.com. They provide water to the following Municipalities: City of Arcata, City of Eureka, City of Blue Lake, Fieldbrook-Glendale Community Services District, Humboldt Community Services District, Manila Community Services District, McKinleyville Community Services District.
Also a new comparable PDF report product is now available by clicking the link [Printable Version of Current Data] from Perris Lake link mentioned above:http://cdec.water.ca.gov/cgi-progs/products/prrres.pdf
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Today's manual and electronic readings recorded the statewide snowpack's water content ? which normally provides about a third of the water for California's farms and cities -- at a mere --18 percent of average for the date.
Just as telling was the April 1 survey that found water content at only 32 percent of average at the time of year it normally is at its peak before it begins to melt into streams and reservoirs with warming weather.
The May 1 survey is taken after the snowpack ? which normally peaks in early April -- has begun to melt into streams and reservoirs with warming spring weather. Statewide, the April 1 "peak" this year was a dismal 32 percent of average water content for the date.
The first workshop will be held 8 a.m. to noon on Friday, April 25 at the Veterans Memorial Hall, 801 Grand Avenue in San Luis Obispo. The second workshop on May 9 will be held in the City of Santa Rosa?s Utilities Field Operations Training Center, 35 Stony Point Road. The English session will run from 7:30 a.m. to 11:30 a.m., followed by a Spanish session from noon to 3 p.m.
The forecasts will be posted on the California Cooperative Snow Surveys website - Water Conditions in California - B120
This Sacramento Valley Water Year Type Index (40-30-30), originally specified in the 1995 SWRCB Water Quality Control Plan, is used to determine the Sacramento Valley water year type as implemented in SWRCB D-1641. Year types are set by first of month forecasts beginning in February. Final determination is based on the May 1 50% exceedence forecast. Likewise, the San Joaquin Valley Water Year Type Index (60-20-20) is used to determine the San Joaquin Valley water year type. Final determination for San Joaquin River flow objectives is based on the May 1 75% exceedence forecast.
The forecasts will be posted on the California Cooperative Snow Surveys website.
Read More Overview of proposed changes brochure Reusable tunnel material brochure Sandhill crane brochure Map of proposed changes
The projects will receive a total of nearly $30 million under the Delta Special Flood Control Projects? Hazard Mitigation Plan (HMP) Levee Repair and Improvement Project Solicitation Package (PSP). The projects include landslide levee repair, all-weather road construction, erosion repair and other improvements, along with mitigation for any habitat damage.
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Manual and electronic readings today record the snowpack's statewide water content at 19 percent of the January 3 average. That is only 7 percent of the average April 1 measurement, when the snowpack is normally at its peak before the spring melt.
Public Draft 2012 CVFPP and December FCSSR...
Please click on the following for Agenda: Stockton (PDF: 22KB) | Yuba City (PDF: 22KB) | San Jose (PDF: 22KB) | Sacramento (PDF: 21KB) | Ventura (PDF: 173KB) | Riverside (PDF: 22KB)
Survey Location and Results:Phillips Station at Highway 50 and Sierra at Tahoe Road, about 90 miles east of Sacramento, is the manual survey location. Reporters and photographers should bring snowshoes or cross-country skis and park vehicles along Highway 50. Snow depth and water content figures should be available by 1 p.m. This survey is the last of five measurements that help water supply planners estimate the amount of spring snowmelt runoff into reservoirs.
were developed to provide a user-friendly gateway for citizens, agencies, businesses, and the media to access government services. The CDEC staff is excited about the
updated look and functionality of the new website. The major change has been the organization of web pages, most of the tools and links that are accessed within the existing CDEC website will still function as they currently do.
Here are a few new features:
- Subject category tabs to allow more flexible access to tools and links.
- Addition of left sidebar navigation for easy access to popular links.
- Enhanced data plotting
- Announcements box in the Home page contents area with a vertical scrollbar to cover all messages and announcements from most current to the past.