The USGS provides practical, unbiased information about the Nation's rivers and streams that is crucial in mitigating hazards associated with floods. This site provides information about the USGS activities, data, and services provided during regional high-flow events, such as hurricanes or multi-state flooding events. The USGS response to these events is typically managed by the National Floods Specialist.
Unusual end-of-summer rains produced flooding in the Southwest United States, including devastating floods in the Colorado Front Range and major floods in central New Mexico.
3-day rainfall of nearly 13 inches caused major flooding in river basins near Boulder, Colorado.
NWS Service Assessment: The Record Eastern Colorado Floods of September 11-17, 2013. (published June 2014)
Exceedance Probability Analysis (pdf) for the Colorado Flood Event, 9-16 September 2013 from the Hydrometeorological Design Studies Center (HDSC), National Weather Service, NOAA, released September 17, 2013
Major flooding occurred in the Upper Gila River and Paria River Basins in Arizona, Utah, and new Mexico, beginning on September 9th, resulting in road closures and damage to homes. Click the images below to view flooding along the Rio Puerco river.