NOAA: 10-20 Inches of Snow for Colorado Today & Tomorrow Colorado is getting the big late season snow this May. NOAA has issued both a Winter Storm Warning and a Winter Storm Watch for the Colorado mountains today that involved 10 to 20 inches of new snow falling today and tomorrow. Just last week, Colorado got a foot of snow and a few days before that on May 10th, Arapahoe Basin, CO got 14″ of snow and had a helluva powder day. “A winter storm watch has been issued for the mountains for Monday evening through Tuesday afternoon. Accumulations of 10 to 20 inches […] Weather SnowBrains | May 18, 2015 3 Comments