Toby Gallegos with the Colorado Department of Transportation inspects his snowplow Friday at the Rockwood facility in preparation for a weekend snowstorm. The National Weather Service issued a winter weather advisory for the high country from 5 p.m. Friday to 5 p.m. Sunday. More than a foot of snow is possible at higher elevations and travel could be difficult. Scattered snow showers with a few inches of accumulation are forecast for Durango. Gallegos has been a plow driver for 18 years, and he will be retiring in the next couple of months.