May 25, 2013
A strong push of moisture moved into the central U.S. during the morning of the 25th. A MCC formed over Nebraska and advanced east-northeast into Iowa. Precipitable water increased to around 1.7 inches by sunrise, which was about 2 sigma above climatology. A 40 kt low level jet fed the system, maintaining it into the morning hours. Thunderstorms were relatively slow moving and continued to develop and train into the same area. One line of storms moved through central Iowa and became nearly s
Source: NOAA National Weather Service Storm Events Database (event 442232). Narrative written by NWS staff at the time of the event.
This event is one of many recorded floods in Marshall County. See the full FEMA flood zone map, NFIP claim totals, and disaster history for the area.