Strong arctic high pressure was over the Canadian Prairies on this Saturday, and its southern expanse encompassed most of the central United States. After a couple mild days in the 50s and 60s, temperatures plummeted. The surface weather maps changed little through the course of the day, and in the upper levels, flow was zonal over much of the country. An embedded low amplitude shortwave trough advanced from the Intermountain West onto the Central Plains by evening. A 110 knot upper level jet streak preceded this trough and by evening had shifted eastward enough that its entrance region became located over the Central Plains, creating a favorable environment for deep upward motion.
Around midday, a narrow (roughly one county wide) band of light snow developed along and just south of highway 6. The band initially developed over Gosper, Phelps, and Kearney counties, and then sagged into Furnas, Harlan, and Franklin counties through the mid- and late-afternoon hours. By 7 pm, the band had progressed across the state border into Kansas. Three to 5 inches of snow fell across portions of Furnas and Gosper counties, with lesser amounts in neighboring counties.