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Alaska Snow Survey Program

 

*** The Alaska Snow Survey Program webpage is in the process of a migration. Users may experience reduced functionality. Please contact us if you have any issues resulting from the migration

 

The NRCS Snow Survey Program provides mountain snowpack data and streamflow forecasts for the western United States and Alaska. Common applications of snow survey products include water supply management, flood control, climate modeling, recreation, and conservation planning.

Snow Site Information
All Sites (Yesterday's Data)
 

Hourly Data (Last 3 days)

 

Daily Data (Since Oct. 1st)

 

Product Highlights

Daily SNOTEL Graphics

Basin-Wide Products

  • Snow Water Equivalent
  • Precipitation
  • Average Daily Temperature

Individual SNOTEL Site Products

  • Snow Water Equivalent
  • Precipitation
  • Average Daily Temperature
  • Soil Moisture (where available)
   

Interactive Alaska Map

You can now gain access to a variety of data types:

 

Snow Survey Data, Products, and Reports

Snow & Precipitation

Current Water Year  |  Historic Data  |  30-Year Averages

Monthly Snow Survey Reports

Issued February, March, April, and May detailing state of the Alaska snowpack

Water Supply

Water Supply Outlook Reports, Streamflow forecast maps, tables, charts, etc.

Site Information

Data site locations, descriptions, etc...

Climate

General climate information for Alaska, climate summaries, wetland analysis, etc...

Recreation

Weekly snow depth reports, SNOTEL sites near ski resorts, etc..

 

Additional Snow Survey Information

Interim Issue Resolution: Air Temperature Data Bias

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 use of the linear least-squares regression 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: Air Temperature Bias Correction Metadata and Resources