A reminder that there is no perfect way to compute how much snowfall a model is forecasting. Many ways to estimate. 10:1 is simplistic and can be inaccurate.

For GFS, an alternative is accumulated positive change in snow depth, taking into account packing, liquid QPF, temp, etc. pic.twitter.com/Qph6o7kmCl

— Dr. Levi Cowan (@TropicalTidbits) December 12, 2020