Jun 15, 2014
Repeated heavy rains caused record flooding of the Rock River in northwest Iowa from June 15th through June 21st. Numerous roads were flooded, many damaged, and some secondary roads washed out. Farmland and other low areas were flooded, and numerous homes and businesses were flooded, especially in the towns of Rock Rapids and Rock Valley. Many residents were evacuated and relied on Red Cross and other volunteer help for several days.
Source: NOAA National Weather Service Storm Events Database (event 523787). Narrative written by NWS staff at the time of the event.
This event is one of many recorded floods in Lyon County. See the full FEMA flood zone map, NFIP claim totals, and disaster history for the area.