Probabilistic Heavy Snow and Icing Discussion NWS Weather Prediction Center College Park MD 552 AM EDT Sun Oct 20 2024 Valid 12Z Sun Oct 20 2024 - 12Z Wed Oct 23 2024 ...Central and Southern Rockies... Day 1... Snow over the San Juans will slowly taper today as the filling upper low over northern AZ finally pulls away across CO. The probability of significant ice across the CONUS is less than 10 percent. Jackson