San Juan Mountains Weather Report ~ 2/21/15
An energetic NW flow is carving out a low-pressure trough over the intermountain west today through Sunday. This will most likely pinch off into a closed low over the desert southwest on Monday. All this points to a vigorous few days of winter weather with gusty winds, colder temperatures and up to several feet of snow for favored mountain locations.
Overnight the flow becomes westerly as the trough elongates into the Great Basin. SW flow will eventually develop as the trough deepens and slowly shifts south. The low will close off over southern California, bringing decent moisture to the western Colorado mountains.
On Sunday/Monday, act two of the storm will pick up good southwest moisture and carry a deeper surge over the southern San Juans. There is potential for heavy snow.
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