A complex of thunderstorms developed over eastern Kansas during the overnight hours of June 5th and tracked across extreme southeast Kansas and southern Missouri during the morning of June 6th. Numerous reports of 50 to 70 mph winds were received as a large bow echo raced through the region causing some scattered wind damage reports. In addition, very heavy rainfall occurred with this thunderstorm complex which caused some flash flooding to occur, especially in areas which had received heavy rainfall the evening before. There were several reports in Jasper county of 6 to 10 inches of rainfall.
Scattered severe thunderstorms then developed across northeastern Oklahoma and pushed into extreme southeastern Kansas and southwestern Missouri late Thursday evening. Some of these storms produce hail up to the size of golf balls. Torrential rainfall and nearly continuous lightning also occurred with these storms. Reports of flash flooding were received from McDonald County.