Flash Flood — Sierra, New Mexico

2025-09-27 · near Monticello, Sierra, New Mexico

Event narrative

Social media video showed evidence of mud flows and damage from flash flooding near the town of Monticello.

Wider weather episode

A negatively tilted trough was moving through southern California and northern Baja which tapped plenty of subtropical moisture. Locally heavy rain developed along the east slopes of the Blacks Range and brought flash flooding and wind damage to the Monticello area.

View location on OpenStreetMap → (33.4057, -107.4693)

Source: NOAA Storm Events Database, event_id 1295087. Narrative written by the NWS forecast office that issued the report.