Winter Weather — Llano, Texas

2025-01-20 to 2025-01-21 · Llano, Texas

Event narrative

Snow began to fall during the evening on the 20th. A CoCoRaHS observer near Buchanan Dam reported 0.1 of snow with only minor impacts.

Wider weather episode

With cold air in place across South-Central Texas an area of low pressure over the western Gulf moved northward along the coast. This brought warm, moist air to the region. Isentropic lift around the north and west sides of the low was sufficient to generate precipitation. Warmer air riding over the cold boundary layer produced a mix of precipitation types and made travel difficult in the Hill Country, I-35 Corridor, and Coastal Plains.

Source: NOAA Storm Events Database, event_id 1232367. Narrative written by the NWS forecast office that issued the report.