Noon, Friday, January 19, 2018
The current mild weather will continue into Saturday. But change is on the way late Saturday afternoon or evening that will likely result in wintry travel conditions by Sunday morning.
This storm is a little more organized than recent storms and should bring a slug of Pacific moisture with it. That’s the part of this story that is conducive to significant snow. Now the part that might reduce the snow amounts– the storm system may not really ramp up until it is mostly east of the Front Range. Below is what I think is the most likely scenario.
Some snow (maybe some low elevation rain and first) begins Saturday afternoon in western Colorado, but holds off until Saturday night in the Front Range region. There may be a period of heavy snow early Sunday, and an increasing chance for areas of blowing snow (mainly east of I-25).
Widespread accumulations of 3-6 inches, and areas near the foothills won’t necessarily get the most. Local areas of 6-10 in the mountains.
I’ll update late Saturday afternoon if a shift in the storm intensification changes the potential for heavy snow.