Diane, the short answer to your question is no. We actually live in a pretty incredible age where Google and others update their satellite imagery almost yearly. You can even use the slider in Earth to look at historic imagery, which can be cool. As far as I know, nobody is taking daily satellite images on the level that would reveal snowpack.
is the best I've been able to find for snowpack data. This is NOAA's model for various snow-related variables across the U.S. If you poke around that link you may find some useful info.
And as always, a call to the Forest Service or other agency station closest to your trailhead will likely provide the best, most current information.