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BACKGROUND During the week of July 20, 1998 a series of afternoon and evening thunderstorms produced heavy rainfall over portions of Northeastern Colorado, The individual rainstorms were generally small and localized with durations ranging from less than an hour to several hours, Reported maximum rainfall amounts for the investigated storms were on the order of 4 to 6 inches, Fortunately, reported flood damage was not severe in most cases, mainly due to the fact that the rainstorms were centered over isolated areas or areas having low population densities, PURPOSE AND AUTHORIZATION The purpose of this report is to briefly describe and summarize the findings of the CWCB field investigations on July 27 and July 28, 1998 in northeastern Colorado, The ultimate objective is to provide flood documentation for notable storm events in Colorado in an effort to better understand hydrologic and hydraulic characteristics of rural watersheds in the eastern plains region the state, The study area for this report includes Morgan, Logan, Sedgwick, and Phillips Counties, According to Section 37-60-106(l)(c) of the Colorado Revised Statutes, the Colorado Water Conservation Board has the power and duty: ".., to devise and formulate methods, means and plans for bringing about the greater utilization of the waters of the state and the prevention of flood danlages therefrom and to designate and approve stoml or f100dway nllloff channels or basins, and to make such designations available to legislative bodies of cities and unincorporated towns; to county planning commissions; and to boards of adjustments of cities; incorporated towns; and counties of this state..," FIELD INVESTIGATION SUMMARY BY COMMUNITY i\ synopsis of the flood documentation findings for each county in the study area is presented :Jelow, ;Morgan County :\1organ County experienced heavy rains on July 24, however no major flood damage was reported, Badger Creek was running bankfull during the peak flow, but there were: no flooding problems and evacuations were not required, One county road located northwest of Weldon a was temporarily closed due to high water in the area, CWCB staff did not perform a rainfall bucket survey and did not obtain discharge estimates in Morgan County for this event. Logan County The town of Crook, located in northeast Logan County, received a substantial amount of rain during a storm that occurred on July 25, Local witnesses said that a ditch on the north side of town overflowed and caused street flooding, One house was reported to have flood damage to the first Hoor, one house had approximately I foot of water in the basement, and several other houses had Hoodwater in their crawl spaces. According to one flood witness, "most of the streets in Crook were 'boot deep' with water." Another long-time resident of Crook proclaimed that this was "the worst rainstorm I've ever been in,"