Code and Data Availability

The data that support the findings of this study are openly available in the following repositories and websites:
SnowCloudMetrics.app is available online www.snowcloudmetrics.app (last accessed 28 October 2020).
GitHub page for SnowCloudMetrics information and scripts is available online at https://github. com/orgs/SnowCloudMetrics (last accessed 28 October 2020).
GitHub page for At-Risk snow and Frequency of a Warm Winter Google Earth Engine scripts is available online at https://github.com/AnneNolin/NewSnowMetrics (last accessed 28 October 2020).
Google Earth Engine datasets are available online at https://developers.google.com/earth-engine/ datasets/catalog (last accessed 28 October 2020).