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Colorado SNOTEL Watershed Snowpack Projection Graphs

Select a watershed on the map to access the current graph.

Statewide Graph

Arkansas River Basin South Platte River Basin North Platte River Basin Yampa and White River Basins Colorado River Basin Gunnison River Basin San Juan, Animas, Dolores, and San Miguel River Basins Rio Grande River BasinMap of Colorado's Major River Basins



About these graphs:

The heavy black line shows the observed accumulation to date.  The remaining colored lines (blue through red) indicate the range of possible futures. Blue tinted lines indicate generally wetter scenarios, while red tinted lines indicate drier scenarios. Shown are the Min, 10%, 30%, 50%, 70%, 90% non-exceedance scenarios and the Max. These bounds are a statistical summary of the individual scenarios.

The green line shows the long term normal (median) data on that date. The colored background shows the historical range of all of the daily data. The uppermost edge and lowermost edges of the this area are the highest and lowest historical values available during the limited historical period.  In between these bounds are shown the historical 10, 30, 70 and 90% non-exceedance bounds of the data. The historical median (50% non-exceedance) is shown as a faint dashed green line.

For additional information on using these type of graphic products, select the link below.

A User's Guide for the Interpretation of Basinwide Snowpack Projection Graphs