21 Nov San Juan Mountains Weather Forecast: 11/20/2014
Our dry weather will soon be history with the start of another storm cycle carried on a moist Pacific trough moving into the Colorado mountains beginning mid to late day Saturday. A cold front associated with the system will make things interesting. Snowfall should begin mid-day Saturday in the higher elevations and pick up after midnight and continue through mid-day Sunday with the lower valley’s also getting some light to moderate snow.
Deep moisture, orographic lift and the cold front will fuel the storm with a lull coming to the San Juans late Sunday evening, then picking up over night from the backside of the trough passage favoring the northern/central mountains and the north side of the San Juans. Elevations above 10,000′ could see 8-12″ or more in favored NW locations by Tuesday.
Some models show a moist NW flow bringing more snow into the mountains Tue. night/Wed. morning with a Thanksgiving Day storm possible for the San Juans. More revisions coming up as the storms develop and the models change the next few days.
Welcome back to another winter forecast season of guessing and interpretation from Rōbert.
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