Flash Flood — Laramie, Wyoming

2025-07-23 · near Cheyenne, Laramie, Wyoming

Event narrative

Social media report of a car that stalled attempting to drive through the Ames underpass in downtown Cheyenne. Report states that there was a foot of water on the shallow side and 2 feet on the deep side.

Wider weather episode

A push of monsoon moisture into southeast Wyoming lead to the development of widespread showers and storms that eventually converged over the city of Cheyenne. Intense rainfall lead to impressive rainfall rates, resulting in urban flooding across the city.

View location on OpenStreetMap → (41.1300, -104.8200)

Source: NOAA Storm Events Database, event_id 1265903. Narrative written by the NWS forecast office that issued the report.