Thunderstorm Wind in Nemaha County, Nebraska

A personal weather station measured a 58 miles per hour wind gust.

Upper air analysis on the morning of August 14th showed troughing over the Pacific Northwest and a shortwave ridge with its axis positioned over the upper Mississippi River Valley. Divergence aloft over the central Great Plains developed two areas of low pressure at the surface as analyzed by Weather Prediction Center surface analysis maps. One low pressure was centered over South Dakota, the other in northwest Kansas. The two low pressures were connected by a stationary front, and a warm front extended southeast out of the southern low pressure into the lower Mississippi river Valley. By the afternoon hours, convection developed along and on the cool side of this warm front, resulting in scattered strong to severe thunderstorms across much of southeast Nebraska and southwest Iowa. Though both states saw severe thunderstorm warnings, the only severe weather reports came out of Nebraska where a funnel cloud, quarter sized hail, and wind gust of 58 miles per hour were all reported. Training thunderstorms in the Omaha metro later that night resulted in isolated pockets of urban flash flooding in Douglas County south of Interstate 80.