May 11, 2023
A slow moving storm system produced flooding and flash flooding across the urban corridor and northeast plains, with heavy snowfall in the higher mountains of the Front Range. Storm total rainfall during the 3-day event ranged from 4 to 7 inches across the urban corridor and Palmer Divide, with 2 to 5 inches across the plains. Additionally, from 1 to 2 feet of heavy wet snow occurred above 10 thousand feet. The heaviest rainfall occurred over Arapahoe, Denver, Douglas, Elbert and southern Jef
Source: NOAA National Weather Service Storm Events Database (event 1103230). Narrative written by NWS staff at the time of the event.
This event is one of many recorded floods in Adams County. See the full FEMA flood zone map, NFIP claim totals, and disaster history for the area.