So snow is super hard to forecast because snow bands. These happen at a mesoscale, and typically one 1-2 grid points of the models used to forecast. The exact processes that contribute to banding are not very well measured, either, so it's very difficult to get a good prediction for it.
Due to the banding, you can get extreme variations in snowfall, leading to, "I thought we were supposed to get a foot, but we only got an inch!" type of comments. Or, bands will line up with the storm motion and just pelt an area harder than expected.
Due to the banding, you can get extreme variations in snowfall, leading to, "I thought we were supposed to get a foot, but we only got an inch!" type of comments. Or, bands will line up with the storm motion and just pelt an area harder than expected.
Example: http://imgur.com/i0j4I7g