It was a cool but dry weekend here in Nedeland, Colorado:
Friday: High 37 F, Low 22 F, Precip 0
Saturday: High 45 F, Low 18 F, Precip 0
Sunday: High 34 F, Low 9 F, Precip 0
The 9 F low on Sunday was quite chilly and temperatures for the day barely reached above freezing.
The coldest temperatures will be before midnight when the thermometer will drop into the 15-20 F range. It will gradually warm to near 35 F by morning.
We’ll get a brief break from the cold on Monday. A southwesterly wind ahead of a Pacific Storm will advect warmer air into much of Colorado during the day, and temperatures will reach near 50 F here in Ned. Expect of a mixture of high clouds and sun during the day with a light to moderate breeze.
A trough of low pressure will dig into the Great Basin and then swing into Western Colorado. Ahead of this system precipitation will spread into the Front Range Mountains and Foothills beginning later Monday evening. It could actually start as rain here in Nederland before quickly changing over to snow. This snow is expected to continue into the Tuesday morning commute as temperatures drop back into the 20s F.
Snow will continue in the morning before diminishing during the midday and early afternoon hours. The upper level trough may cutoff into a an upper level low over southern Colorado. If this happens, I would expect precipitation amounts to be higher. If the upper level trough does not cutoff, then precipitation amounts will be lighter. Right now most weather guidance is giving Nederland and the Northern Foothills somewhere between 0.3 and 0.7 inches of liquid precipitation. Since this could start as rain, and the snow will be wetter, a 1:12 ratio would leave us with 4 to 8 inches of snow by Tuesday afternoon.
We’ll see dry weather return with highs in the low 40s F and lows in the 20s F
Another storm system will swing through the central and southern Rockies bringing with it colder temperatures, clouds, and some light snow. This system does not appear to be as strong or have as much moisture as Tuesday’s system. Still it could bring an inch or two of new snow, just enough to make it feel like a Rocky Mountain Thanksgiving!