Sep 4, 2025
On September 4th, precipitable water values increased to above normal values, with the 18z Grand Junction sounding showing 0.69 inches of precipitable water. To the west of eastern Utah and western Colorado, an area of weak rotation associated with a passing shortwave helped to provide extra lift. Morning sunshine helped to realized enough instability that, with all other factors present, thunderstorms developed over the higher terrain through the afternoon. These storms were capable of producin
Source: NOAA National Weather Service Storm Events Database (event 1295701). Narrative written by NWS staff at the time of the event.
This event is one of many recorded floods in Mesa County. See the full FEMA flood zone map, NFIP claim totals, and disaster history for the area.