Jul 22, 2017
A weak semi-stationary boundary remained draped across Iowa in the overnight hours of the 20th into the 21st, which acted as a focus for initial storm development. Storms early in the evening moved off to the southeast and was relatively quiet until the low level jet kicked in. The overall convective environment was modest with MUCAPE values around 1000-2000 J/kg and unsupportive effective shear and best supported widespread back building convection. While there were not many heavy rainfall r
Source: NOAA National Weather Service Storm Events Database (event 713958). Narrative written by NWS staff at the time of the event.
This event is one of many recorded floods in Bremer County. See the full FEMA flood zone map, NFIP claim totals, and disaster history for the area.