San Juan Mountains Weather: End of Season Snow?

San Juan Mountains Weather: End of Season Snow?



There’s a building ridge of high pressure over Colorado today with warming temps and clearing skies. Later in the day, clouds will begin moving into the forecast area just ahead of the next large trough of low pressure on the west coast pushes into the Great Basin then later into the San Juans on SW flow.

We should see the beginnings of the storm tonight in the San Juans then it picks up Saturday when the trough moves overhead. Elevations above 11,000′ should see between 4-8″ of new snow favoring southwest aspects.  As the trough moves east the flow shifts to the north (back side of the trough) favoring the northern Colorado mountains and the north side of the San Juans. By early week a large high pressure ridge builds lasting late into next week.

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