12:30 PM MDT, Monday, March 16, 2020
This afternoon through Wednesday
There is a cold front moving southwestward across northeastern Colorado at noon today. The temperatures at noon are about as warm as they are likely to get, and it may start trending cooler this afternoon. It’s not a cold air mass moving in, so tonight and Tuesday are likely to be cool, but not cold, with some clouds around through Tuesday morning. Wednesday is likely to see warmer temperatures.
Wednesday night and Thursday
A strong storm should move through the central Rockies Wednesday evening and Thursday with some rain or thunderstorms in its warm sector, and the potential for blizzard conditions on the north side of the storm track as it moves into the Great Plains. With the center of the surface storm likely to be in northeastern or east-central Colorado, it may strengthen too late and be too far north for major snowfalls in metro Denver-Boulder. But we can’t write it off yet.
Here’s a roundup of what it is currently looking like for different parts of the area:
Far northeastern plains of Colorado , western Nebraska, southeastern Wyoming (including the Cheyenne area): Good chance for a period of heavy snow and wind Thursday and Thursday night with travel disruptions.
Fort Collins and Greeley: lesser chances of heavy snow here, but certainly it’s still a real possibility.
Denver-Boulder metro: Chances are smaller here, but even here just a small shift in storm track (to the south and west) could result in a significant storm.
Colorado Springs: there would have to be a major error in the current models for a big snowstorm in Colorado Springs.
For most areas there will probably be some rain or thundershowers around on Wednesday evening as the storm approaches, and blustery north winds as the storm pulls away late Thursday.
Spring officially begins at 9:49 PM MDT on Thursday.