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South Dakota Badlands on the 2nd and in northeast Colorado and southeast Wyoming on the 4th, More than 5 inches of rain fell near Hillrose, Colorado, on the evening of the 4'h, causing flood waters to cover Highway 6 east of Hillrose. Minor flooding was reported in the Denver area. None of the flash floods affected Corps projects, . Saturated soil conditions in the Ft. Collins, Colorado, area from the flooding in late July resulted in more lowland and street flooding on August 5th as 2 inches : of rain fell in a short time. The pattern of daily flash flooding along the Front Range subsided somewhat, following additional heavy thunderstorms in northeast Colorado on August 6th. Severe weather returned to the northcentral plains by August 13th as a strong upper-level storm system deepened over the Dakotas. Heavy thunderstorms dumped rainfalls of 2 to 4 inches in several locations, which caused minor flooding near Rapid City, Aberdeen and Pierre, South Dakota, and on the South Loup River near Ravenna, Nebraska. Following the thunderstorm outbreak on the 13th, storms in the District did not produce significant flash flooding until the end of August. Another period of heavy rain and flash flooding began over parts of Colorado, Nebraska, Iowa and North Dakota as a cold front pushed into warm moist air moving northward from the Gulf of Mexico at the beginning of September. Heavy rains fell in the Denver area, upstream of Cherry Creek and Chatfield Reservoirs, causing minor lowland flooding on the night of August 31't and the morning of September 1't. Severe thunderstorms also dumped up to 4 inches of rain upstream of Jamestown Reservoir near Jamestown, North Dakota. The Missouri River at Williston remained 1.7 feet above flood stage on September 1ot. ,. Three to more than 6 inches of rain fell over eastern Nebraska and Western Iowa the night of September 1'" pushing streams in the Papillion Creek watershed above flood stage near Elkhorn, Ralston and Bellevue, Nebraska. Greater damage was prevented by four Corps reservoirs in the basin, and warnings generated by the Corps sponsored ALERT flood warning system provided time to close most of the roads in the flood plain. Lowland flooding was reported on Maple Creek near Nickerson, Nebraska, and other Elkhorn River tributaries. Additional lowland flooding was reported in parts of the Nishnabotna River basin of western Iowa and in the Tarkio River basin in northwest Missouri. i (2) Fall 1997. The remnants of Pacific tropical storm Nora brought abundant moisture to the southern part of the District by the last week of September. Thunderstorms became more numerous over Colorado, Nebraska and Iowa. Minor lowland flooding 9