Point maps and interactive maps of snow water equivalent, snow depth, and snow density from the Natural Resources Conservation Service (NRCS) Snow Telemetry (SNOTEL).

Quick Drought Response Index (QuickDRI): a geospatial tool that characterizes the intensification of short-term drought condition patterns on a weekly basis across the continental United States (CO

Reports and data on streamflow, forecasts, reservoir storage and other hydrologic information for the Western United States.

Monthly streamflow maps comparing percent of monthly average flow to their respective 1981-2010 average. Available in spring and summer for the western U.S.