National Weather Service United States Department of Commerce

Multiple rounds of showers and thunderstorm will begin Thursday and persist throughout the weekend. Thunderstorms will become widespread Thursday night with localized flooding possible across much of the area. The greatest severe threat will exist over southeast Nebraska.
A second round of thunderstorms will develop Friday afternoon and continue into Friday night. Severe weather is possible across much of eastern NE and southwest IA with the greatest risk for flooding being from northeast NE into southwest IA.
A third round of thunderstorms will develop Saturday afternoon or evening and continue into Saturday night. The greatest severe weather and flooding threat will exist across far southeast Nebraska and southwest Iowa.