Probabilistic Heavy Snow and Icing Discussion
NWS Weather Prediction Center College Park MD
444 PM EDT Mon Apr 22 2019

Valid 00Z Tue Apr 23 2019 - 00Z Fri Apr 26 2019

...Central and Southern Rockies...

Upper trough per recent water vapor imagery is slowly tracking
eastward this afternoon over the desert Southwest. This feature
will skirt across New Mexico during the Day 1 period before
opening up in the southern/central Plains. Favorable forcing for
ascent, per upper jet coupling associated with a vort max rounding
the base of the aforementioned upper trough and northern stream
energy, provides a favored location for precipitation across
portions of New Mexico and southern Colorado. With anomalous
height falls over the region, the highest elevations will see
accumulating snow with some significant totals in the Sangre de
Cristos and Tusas Mountains in New Mexico and Wet Mountains in
southern Colorado. WPC probabilities for 12 inches or more are
moderate during the Day 1 period. Some accumulating snow,
generally under 4 amounts, linger into the beginning of Day 2, for
event total accumulations of 10-20 inches in the highest
elevations, generally above 10-11 kft.