There are quite a few comments here talking about how comparing images from feb/march isn’t useful. Here’s data on what’s going on. This snowtel location is within the Utah picture in the article.
https://www.cbrfc.noaa.gov/dbdata/station/swegraph/swegraph_...
Where can I find similar data for the Columbia River basin? That's where we're going to see large impacts on hydropower production come mid-to-late summer, I suspect. Impacts for the PNW and CA.