Jul 30, 2021
Flash flooding occurred on Tonahutu Creek. Trees, mud and debris shut down Grand Lake's hydro plant. Approximately 50 downed trees piled up at the plant's head gate and ash and mud filled the ditch leading to another gate. Another flash flood impacted CO-125. Additional flash flooding occurred in the Calwood and Cameron Peak burn areas, where up to 2.5 inches of rain fell in one hour. In Erie, heavy rain anywhere from 3.5 to 4.5 inches, produced flash flooding. Several vehicles were strand
Source: NOAA National Weather Service Storm Events Database (event 975660). Narrative written by NWS staff at the time of the event.
This event is one of many recorded floods in Larimer County. See the full FEMA flood zone map, NFIP claim totals, and disaster history for the area.