San Juan Mountains Weather Forecast ~ Tuesday, January 3, 2017 @ 11:00 ~ Infrared loops updated 1/4/17 @ 08:00

Seems to be plenty of moisture on tap to feed stormy conditions for the Colorado mountains most of the week. There is good jet support, plenty of Pacific moisture and a cold front thrown in to complete the trilogy for prolonged storm conditions into Friday for the San Juans.

There are several closed lows forming within the major low pressure trough drawing plenty of Pacific moisture into the desert southwest and Colorado mountains, especially a persistent low that models show forming Friday/Sat in the Pacific NW  pulling moisture into the west for several days.  This could be a decent storm maker for us and something to keep an eye on.






Wednesday a cold arctic air mass undercuts a large plume of Pacific moisture. As the front moves south precip rates should increase for the WNW San Juans by late Wednesday into Thursday, maybe even Friday morning. There could be significant snow totals from a foot up to Three (30″ check out graph below from OpenSnow) in those favorite spots above 11,000′.

Late Friday and into the weekend high pressure moves back into the area but early next week models hint at another stormy period coming our way.


Based on these and other models, it is reasonable to forecast 1-2 feet of snow for most mountains through Thursday night, and totals over 30 inches could occur in the luckier areas (especially the central and southern mountains).


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