12:30 PM, Wednesday, December 23, 2015
The lower elevations of the Front Range will be drier than the mountains, but there may be some accumulating snow on Christmas Day into the 26th. Slightly below average temperatures through Christmas will be replaced by even colder weather over the weekend.
Mountains: Expect snowy travel at times, especially at the passes. Christmas Eve day may see the best lull, especially during the morning and midday. Snow on Christmas Day is likely to shift south Saturday and Sunday with the New Mexico mountains getting the most over the weekend.
Front Range foothills, urban corridor, and plains:
Generally dry through Christmas Eve. As the storm to the west splits around Colorado, there is a small chance we may see some areas of snow by Christmas morning, and a better chance by late afternoon or overnight into the morning of Dec 26th. A major storm appears unlikely, but you may be dealing with snowy roads at times. Expect drier weather by late Saturday as the southern part of the storm intensifies and shifts its focus into New Mexico. Daytime temperatures over the weekend may struggle to reach the 20s even in the lower elevations.
Air travel: Minneapolis, Denver, and Salt Lake may be the only major hubs that deal with some snow today or through the weekend (maybe Chicago by the end of the weekend). Unusually warm, moist air over the central and eastern U.S. may impact air travel at times due to fog, rain, and even strong thunderstorms.