Links to sources of observed data
NRCS' SNOTEL website
NRCS' SCAN website

For the following graphs:
*x-axis: date (beginning June 20, 2004)
*y-axis: percent water by volume at:
     Eta: 0-10 cm layer
     RUC: 5 cm depth
     MM5: no physical depth or layer, but equivalent to top several cm (those responsible for evaporation)
     Obs: 2 inch depth
*Multiple MM5 default values indicates that the site borders multiple values

Washington sites

Idaho sites

Oregon sites