And it is a quite fantastical claim to make given that most reports with more substantial evidence usually range between 5-12 cm. I mean can you imagine seeing half a meter wide snowflakes just sailing down from the sky.
What's unique about this is it's pulling in moisture from the Pacific Ocean from an atmospheric river, and that is going to translate to very heavy rain and very heavy snowfall across the mountainous regions.
There will already likely be at least four to six inches of snow on the ground from the previous snowstorm that will be moving through the couple of days before.