Eos, Transactions American Geophysical Union

Fort Collins flood data set created



A unique opportunity to document the hydrometeorological conditions of localized flash flooding in an urban environment has resulted in the creation of a detailed data set of the extreme flood in Fort Collins, Colorado, 2 years ago. The study focused on the Spring Creek watershed in Fort Collins where the flooding, in late July 1997, was most intense, resulting in loss of life and significant damage. Maximum recorded rainfall accumulations were in excess of 260 mm in less than 24 hours, over 200 mm of which fell in 4 hours.

Collaborative research, funded by the National Science Foundation (NSF),served not only to establish the flood data set but also to perform analysis to identify data uncertainty.The data, including rainfall accumulations, land surface characteristics, and indirect discharge amounts, are now available and can be downloaded from the Web site (http://horton.engr.uconn.edu/FortCollins/ Main.html) by hydrologic researchers and practitioners and others interested.The site also includes the analysis.