Probabilistic Heavy Snow and Icing Discussion
NWS Weather Prediction Center College Park MD
310 AM EDT Wed Apr 28 2021

Valid 12Z Wed Apr 28 2021 - 12Z Sat May 01 2021

...Colorado/New Mexico...
Day 1...

An area of low pressure ejecting from the High Plains of Colorado
will shift east into the Central Plains this afternoon. While this
will generally shunt the low-level moisture to the east and cut
off the upslope enhanced ascent, a 500mb closed low moving into
West Texas will maintain mid-level divergence and height falls
into the Southern Rockies. Additionally, a jet streak south of
this trough will continue to bring in Pacific moisture, and the
overlap of these features will produce moderate to heavy snow,
focused primarily in the Sangre De Cristos above 8000 ft where WPC
probabilities are high for 6 inches. Otherwise, only light snow is
expected in the regional terrain.

The probability of snow greater than 4 inches is less than 10
percent Days 2-3.

For Days 1-3, the probability of significant icing (0.25 inch or
more) is less than 10 percent.

Weiss