"The city of Hazard, Kentucky (Ky.), is located in Perry County and has an estimated population of 5,090 as of July 1, 2017. Hazard is subject to flooding from the North Fork Kentucky River. [...] The majority of flood damages in the Hazard area have occurred along the North Fork Kentucky River, which flows through the middle of the city. During flood events, there is significant flooding of residential areas and business districts, many local roads become impassable, and some evacuations are necessary. Prior to this study, emergency responders in Hazard relied on several information sources to make decisions on how to best alert the public and mitigate flood damages."
Scientific Investigations Report 2018-5122
U.S. Geological Survey: https://pubs.usgs.gov/