I'm confused by New snow and Snow depth - it says that snow depth in 24h will increase more than the amount of new snow in the same period. How is that possible? Here are screenshots - snow depth goes from 3.9cm to 12.2cm in 24h but new snow in the same period is 4.8cm.

I'm confused by New snow and Snow depth - it says that snow depth in 24h will increase more than the amount of new snow in the same period. How is that possible? Here are screenshots - snow depth goes from 3.9cm to 12.2cm in 24h but new snow in the same period is 4.8cm.