Snow and Water Products Guide
Snow Survey and Water Supply Forecasting products provided by the National Water and Climate Center. This guide will be updated as new products are released and will be distributed annually in October.
Air Temperature Bias Map
A map showing NRCS stations, color-coded based on whether the historical data for each has been unbiased. Hovering over each dot will provide a pop up with more information. Multiple additional views are accessible through the legend.
Direct Link: https://www.wcc.nrcs.usda.gov/ftpref/support/air_temp_bias/
Product Access Via: Snow Survey and Water Supply Forecasting Program website
Basin Charts
Drop down access to a variety of basin time series charts for snow water equivalent, precipitation, air temperature and reservoir storage. Add # and the two letter state abbreviation to see data for a specific state. For example, add #CO to see Colorado data.
Direct Link: https://nwcc-apps.sc.egov.usda.gov/basin-plots/
Product Access Via: NWCC Apps
Interactive Map, NWCC
Interactive map display of AWDB data.
Direct Link: https://nwcc-apps.sc.egov.usda.gov/imap/
Product Access Via: NWCC Apps
User Guides: Interactive Map Guide to Views and Controls , Snow and Water Interactive Map Glossary
Mobile Report Generator
Mobile-friendly, single element pre-defined report tool for AWDB data.
Direct Link: https://nwcc-apps.sc.egov.usda.gov/
Product Access Via: NWCC Apps, Snow Survey and Water Supply Forecasting Program website
Reference Data
An html table representation of our databases reference data, ie look up tables.
Direct Link: https://nwcc-apps.sc.egov.usda.gov/ref-data/
Product Access Via: NWCC Apps
Report Generator
Customizable on-demand reports for AWDB data.
Direct Link: https://wcc.sc.egov.usda.gov/reportGenerator/
Product Access Via: NWCC Apps, Snow Survey and Water Supply Forecasting Program website
User Guide: Report Generator Help Guide.pdf (usda.gov)
Reservoir Charts
Link is an example. Displays reservoir storage by basin within a selected state. Accessible via the basin charts link.
Example: https://www.wcc.nrcs.usda.gov/ftpref/support/reservoir_charts/apr/az_res.html
Product Access Via: NWCC Apps (Basin Chart Links dropdown)
RESTful API AWDB Web Service
Access to machine-readable data from AWDB using a REST protocol.
Direct Link: https://wcc.sc.egov.usda.gov/awdbRestApi/swagger-ui.html
Product Access Via: NWCC Apps
Quick Links
Provides quick access to a variety of report types in a drop down menu.
Direct Link: https://wcc.sc.egov.usda.gov/nwcc/rgrpt
Product Access Via: NWCC Apps
Site Charts
Drop downs for individual site time series charts by water year for snow water equivalent, precipitation, snow depth and air temperature.
Direct Link: https://nwcc-apps.sc.egov.usda.gov/site-plots/
Product Access Via: NWCC Apps
Site Count
See total number of active sites by network, year, state, and activity level.
Direct Link: https://wcc.sc.egov.usda.gov/nwcc/yearcount
Product Access Via: NWCC Apps
Product Access Via: NWCC Apps
Station Inventory
Direct Link: https://wcc.sc.egov.usda.gov/nwcc/inventory
Product Access Via: NWCC Apps
Snow Depth Charts
Reached through Site plots page. A new AWS plot. Snow depth data over time. Link is an example. new - accessible via the basin or site plots charts separately
Example: https://nwcc-apps.sc.egov.usda.gov/awdb/site-plots/POR/SNWD/CA/Adin%20Mtn.html
Product Access Via: NWCC Apps (Site Charts dropdown)
Snow to Flow
Compare daily streamflow and SWE by water year for all forecast basins. Located in the Site Plots section of NWCC Apps, at the bottom of the page.
Direct Link: https://nwcc-apps.sc.egov.usda.gov/site-plots/
Product Access Via: NWCC Apps
SOAP AWDB Web Service
Access to machine-readable data from AWDB using a SOAP protocol.
Direct Link: https://wcc.sc.egov.usda.gov/awdbWebService/webservice/testwebservice.jsf?webserviceName=/awdbWebService
Product Access Via: NWCC Apps
User Guide: AWDB Web Service User Guide.pdf (usda.gov)
Stacked charts
Monthly or daily SWE and Precipitation for a basin. Link is an example. Located in NWCC Apps, via the basin or site plots charts separately.
Product Access Via: NWCC Apps
Streamflow Adjustment Calculator (SAC) equations
Shows the terms used in creating unregulated naturalized streamflow volumes (SRVO) in AWDB.
Direct Link: https://www.wcc.nrcs.usda.gov/ftpref/support/sac_eq/
Product Access Via: direct link only
SWE Elevation charts
Monthly or daily snowpack by elevation for a basin. Link is an example. new - accessible via the basin or charts link
Product Access Via: NWCC Apps
Telemetry Report
Shows summary statistics on sites reporting by frequency, duration, and telemetry type. Useful for identifying if the program is experiencing system-wide outages.
Direct Link: https://nwcc-apps.sc.egov.usda.gov/tele-report/?duration=day&freq=hourly
Product Access Via: NWCC Apps
Update Reports
Provides AWDB data in a variety of formats and regions. This is a legacy product and basin definitions may not match those used in any other NWCC applications.
Direct Link: https://wcc.sc.egov.usda.gov/reports/SelectUpdateReport.html
Product Access Via: NWCC Apps, Snow Survey and Water Supply Forecasting Program website
User Guide: Snow and Precipitation Update Report .pdf (usda.gov)
Water Supply Forecast Charts
Organizes forecasts by basin across western states, shown in exceedance range graphs.
Direct Link: https://nwcc-apps.sc.egov.usda.gov/forecast-charts
Product Access Via: NWCC Apps
User Guide: Water Supply Forecast Charts User Guide.pdf (usda.gov)
Watershed Characteristics Reports Areas of Interest, NWCC
Forecast basin maps and analysis to support understanding of basin hydrology for improved water supply forecasting and station network design. PDFs created by PSU under contract.
Direct Link: https://www.wcc.nrcs.usda.gov/ftpref/support/aoi/
Product Access Via: direct link only
West Wide Reservoir Charts
Reservoir storage across western states.
Direct Link: https://www.wcc.nrcs.usda.gov/ftpref/support/ww_reservoir_charts/
Product Access Via: direct link only