Winter Weather — Sierra Madre Range, Wyoming

2023-12-23 to 2023-12-24 · Sierra Madre Range, Wyoming

Event narrative

Multiple SNOTEL observations suggest 6 to 10 inches of snow fell across the Sierra Madre range.

Wider weather episode

A weak upper-level disturbance and associated cold front brought widespread light to moderate snow to southeast Wyoming, with the highest accumulations generally being reported to the west of I-25. Accumulations of 2 to 4 inches were common in the lower elevations, with 4 to 10 inches in the mountains. The highest accumulations (near 10 inches) were found on the northern slopes of the North Laramie Range, due to orographic enhancement associated with moist northerly flow behind the cold front.

Source: NOAA Storm Events Database, event_id 1146151. Narrative written by the NWS forecast office that issued the report.