May 9, 2015
Areal flooding developed along the Cache La Poudre and South Platte River Basins as a combination of heavy rainfall and spring runoff unundated the region. The Cache La Poudre reached flood stage from the 10th the the 14th. The South Platte rose above flood stage at Kersey from the 9th to the 15th. A few landslides were initially reported along the Saint Vrain River with minor flooding south of Bohn Park in Lyons. Minor flooding also produced mudslides in Boulder County. In Jefferson County,
Source: NOAA National Weather Service Storm Events Database (event 582626). Narrative written by NWS staff at the time of the event.
This event is one of many recorded floods in Arapahoe County. See the full FEMA flood zone map, NFIP claim totals, and disaster history for the area.