Rainfall data near the Black Hollow Debris Flow, Larimer County, Colorado 20 July 2021

The data presented in this data release represent the records from a rain gage near Black Hollow, CO, a watershed that is tributary to the Cache La Poudre River. On 20 July 2021 a large rainstorm moved over the watershed and generated a large debris flow that destroyed several homes, resulting in four fatalities. The watershed had been burned prior to the rainstorm during the Cameron Peak wildfire (13 August – 2 December 2020). Here we present time-series data the Dry Creek rain gage, which captures the storm that triggered the Black Hollow debris flow. Latitude and Longitude data are included in the header. The timezone of the timestamp is in Mountain Standard Time, note that the storm occurred when the local time was Mountain Daylight Time. The Dry Creek rain gage reports the number of tips at timesteps of 5 minutes, and each tip is equal to 0.01 inches of rainfall.