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Snow Survey

The Nevada NRCS Snow Survey and Water Supply Forecasting Program provides mountain snowpack data and streamflow forecasts for the state of Nevada, as well as, the Eastern Sierra Nevada. Applications of snow survey products include water supply management, flood control, climate modeling, recreation, and conservation planning.

Click photo to access the Nevada Water Supply Outlook Report
(Click on image to get report)

 

Latest News, Reports & Streamflow Forecasts

Today's Update Reports

Monthly Basin Data Reports

Select from snowpack, precipitation, and reservoir storage reports

Screen shot of basin graph example
 

 

Interactive SNOTEL Charts

Charts for snowpack, precipitation, air temp and soil moisture

  • Basin Summary Charts
  • Individual SNOTEL ChartsFor help about this product

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Interactive Map

Displays both current and historic data in an easy-to-use, visual interface. Data types include SNOTEL, snow course, streamflow, reservoir storage, and streamflow forecasts and more.

Picture of streamflow forecast chart example
 

 

Streamflow Forecast Charts

Visual representation of the streamflow forecast range showing the five exceedance probabilities compared to 30-year average.For help about this product

 

Other Forecast Products - Tables, Maps, Unofficial Daily Forecasts

Snow Survey Data*

  • Site Pages:
  • Current and Historic Data Reports
  • Monthly Snow Course Data
  • 30 Year Normals
  • Metadata
  • SNOTEL Sensor Issues - New
 

Water Supply Information

  • Outlook Reports:  
  • Streamflow Forecasts
  • Reservoir Data
  • Streamflow Data
  • Water Supply Presentations

Snow Survey Products

 

Climate and Drought Information

Data Query Tools

 

Other Resources:

Contact Nevada Snow Survey

NRCS Nevada / Eastern Sierra Snow Course Measurement Schedule

* SNOTEL Data Quality: Snow Survey staff review and quality-control only the daily (midnight) readings from SNOTEL sites. HOURLY DATA, OTHER THAN THE MIDNIGHT VALUES, SHOULD BE CONSIDERED PROVISIONAL AND MAY HAVE SIGNIFICANT ERRORS. The only data that are reviewed at the hourly time step are the soil moisture and soil temperature values. In addition, the extended range air temperature sensors used at SNOTEL sites in the continental U.S. calculate temperature from sensor output voltage using a linear least-squares regression algorithm. It has been determined that the this algorithm has resulted in a data bias. The Snow Survey and Water Supply Forecasting Program is actively working on a correction technique for this issue.  More information: http://www.nrcs.usda.gov/wps/portal/wcc/home/snowClimateMonitoring/temperature/temperatureBiasCorrection/.