During spring and summer 1993, record flooding inundated many of the stream and river valleys in the upper Mississippi and the Missouri River Basins. The flooding was the result of widespread and numerous intense thunderstorms that, together with saturated soils, produced large volumes of runoff. The magnitude of flooding exceeded the 100-year discharge values (1-percent chance of exceedance in any given year) at many streamflow-gaging stations in Illinois, Iowa, Kansas, Minnesota, Missouri, Nebraska, North Dakota, South Dakota, and Wisconsin. The flooding was unusual because of its long duration and widespread severe damage. The Mississippi and the Missouri Rivers were above flood stage for more than 1 month at several locations along their lengths. Millions of acres of agricultural and urban lands were inundated for weeks, and unofficial damage estimates exceeded $10 billion in the flooded States (Parrett and others, 1993),
During summer 1993, large parts of Kansas City, Missouri, and Kansas City, Kansas, and vicinity were flooded from overflows of the Missouri and the Kansas Rivers and numerous smaller tributaries, This report provides flood-peak elevation data and delineates the arcalcktent of the 1993 floods in the Kansas City metropolitan area for July 10 and 27, 1993 (fig. 1A, sheet 1: B, sheet 2: C, sheet 3). The 1993 flood elevations and extent of flooding are compared with flood-plain boundaries defined by Flood Insurance Studies conducted by the Federal Emergency Management Agency (FEMA) for cities and counties in the area (U.S. Department of Housing and Urban Development, 1975–95).
This report is one of a series of U.S. Geological Survey (USGS) investigations that document the effects of the 1993 flooding of the upper Mississippi and the Missouri River Basins and that improve the technical base from which flood-plain management decisions can be made by other agencies.
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