Winter Weather — Southwestern San Juan Mountains, Colorado

2025-12-01 · Southwestern San Juan Mountains, Colorado

Event narrative

Generally 4 to 10 inches of snow fell across the area with up to 12 inches at Upper San Juan. Winds gusted in the 40 to 48 mph range with a peak wind gust of 48 mph at Eagle.

Wider weather episode

A low pressure trough and associated cold front dropped southward out of the Pacific Northwest across the Great Basin and through eastern Utah and western Colorado. Moderate to heavy snowfall favored the central and southern mountains with higher amounts along the frontal boundary draped across the central mountains, La Sal Mountains and San Juan mountains. Gusty winds in the 45 to 55 mph range above 12,000 feet also contributed to blowing snow with the forcing from the jet dynamics and cold frontal boundary with banded snow as well. Most lower valleys remained limited with snowfall due to higher snow levels with exception of the Paonia to Hotchkiss area that benefited from banding along the front and convection helping drive snow levels lower at times.

Source: NOAA Storm Events Database, event_id 1301202. Narrative written by the NWS forecast office that issued the report.