Sep 20, 2018
More heavy rainfall was seen across the area, primarily situated over the northern third of the state, as a surface boundary sat across central Iowa and a shortwave moved through the upper level flow. Overall, conditions remained ripe and very much summer-like as opposed to mid-September including precipitable water values were around and in excess of 1.7 inches, moderate to strong low level moisture flow, modest MUCAPE around 500-1000+ J/kg, strong bulk effective shear of 40 to 60 kts, and cont
Source: NOAA National Weather Service Storm Events Database (event 781198). Narrative written by NWS staff at the time of the event.
This event is one of many recorded floods in Franklin County. See the full FEMA flood zone map, NFIP claim totals, and disaster history for the area.