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streams and rivers to rise as well. Water levels rose to around flood stage on many rivers in the south-central part of the state including the Jefferson, Gallatin, Boulder, Big Hole and the upper Missouri Rivers. Even more extreme rain fell on the 27th, when as much as 9 inches of rain were reported near Havre, Montana. Flooding on Montana rivers continued into early July. Very heavy thunderstorms pounded portions of Nebraska, Iowa and the Dakotas by the 27th, with some locations, such as Britton, South Dakota, receiving more than 5 inches. Since the storms were isolated, only localized flash flooding resulted. , Thunderstorm activity along the Rocky Mountains increased due to a stronger monsoonal flow by early July. Two to six inches of rain caused localized flooding in east central and northeast Wyoming on July 1.'. Much of the rain in Campbell County, northeast of Casper, Wyoming, fell in an hour and a half. Stagnant frontal boundaries over the Mid-West continued to provide the focus for severe thunderstorms in the eastern part of the District. Frequent thunderstorms prolonged flooding on the James River of South Dakota, where water levels at Stratford were two feet above flood stage in early July. Severe thunderstorms pounded eastern Nebraska and western Iowa over the 4th of July weekend, Minor flooding was reported in the Loup and Elkhorn River basins of Nebraska. Heavy rains of 2 to 5 inches in the Omaha area caused Papillion Creek and its tributaries to rise to flood stage early on the 5th. Bell Creek near Arlington, Nebraska, and New York Creek near Herman, Nebraska, also flooded from that storm, The Nishnabotna River and its major tributaries once again rose above flood stage in western Iowa. The Missouri River from Nebraska City downstream, which had been receding, began to rise further above flood stage, with the Missouri River at Brownville 4.5 feet above flood stage by July 6th, Widespread thunderstorms continued to visit the high plains nearly every night in early July. Thunderstorm complexes on July 8th and 9th produced heavy rains of 2 to 4 inches in many locations. Lowland flooding was reported near Boulder, Colorado, Cheyenne, Wyoming, Crawford, Nebraska, and Great Falls, Montana, as a result of the severe local storms, Eastern Nebraska and Western Iowa were the targets for the heavy rains on the 10th, More than 2.5 inches of rain ~ fell north of Sioux City, which caused Perry Creek to rise to near flood stage upstream of the city, giving the new flood warning system its first successful test. Up to 8 inches of rain fell in parts the Little Nemaha River basin of southeast ~ Nebraska from the same storm system, which caused the Little Nemaha River to crest above flood stage at Auburn, Nebraska. By July 13th dryer and warm weather overspread most of the District, reducing the threat of widespread flooding. Late afternoon and night time thunderstorms continued to cause local runoff problems, 16