Flash Flood — San Juan, Utah

2025-06-04 · near Grand Co Arpt, San Juan, Utah

Event narrative

Flash flooding was reported along Taylor Canyon on the afternoon of June 4h. This flooding eroded a six food embankment along White Rim Road in Canyonlands National Park, and carried sediment all the way to the Green River. Additionally, several washes along Taylor Canyon Road ran and washed out sections of Taylor Canyon Road. No other damages, and no injuries or fatalities, were received.

Wider weather episode

Anomalously deep moisture was present across southeast Utah and southwest Colorado on the afternoon of June 4th. Enough sunshine had gotten through during the morning hours to create afternoon instability of 500-1000 J/Kg, more than enough to produce some strong storms. In addition, atmospheric profiles favored heavy rain development and slow moving, training thunderstorms. All these factors combined to lead to a few instances of flash flooding.

View location on OpenStreetMap → (38.4825, -109.9871)

Source: NOAA Storm Events Database, event_id 1275562. Narrative written by the NWS forecast office that issued the report.