Increasing cloudiness today will mark the beginning of a strong progressive storm period beginning with a low-pressure system coming onshore from the Pacific. This will be the start of an extended storm period lasting into the weekend of Dec. 17 – 18, but unfortunately most of this activity will favor the central and northern Colorado mountains on zonal flow. The northern San Juans will see more snow than the rest of the range.
Today through Friday morning the NW San Juans could see 3-6″ and the mountains to our north receiving double that number. If the extended forecast verifies, by next weekend the central/northern mountains could see two feet or more of new snow because of the deep moisture feed combined with good dynamics. I will update throughout the week because it looks like a prolonged stormy period and things change.