Jul 30, 2012
Brief but very heavy rain produced flash flooding in the Fourmile burn area in Boulder County. Numerous mud and debris slides were observed along Lee Hill Road. In addition, Gold Run was closed at Dixon. An automated rain gage at Gold Hill measured one inch of rain in just 15 minutes.
Source: NOAA National Weather Service Storm Events Database (event 402470). Narrative written by NWS staff at the time of the event.
This event is one of many recorded floods in Boulder County. See the full FEMA flood zone map, NFIP claim totals, and disaster history for the area.