May 1, 2009
This flood event began for many counties in late March, then continued through April and into May. The cool trend continued into the month of May, especially for the climate site at Grand Forks, North Dakota, which ended up 7.5 degrees below normal. Many rivers peaked in late March or April, so most river levels continued a slow fall in May. After peaking around 1269.50 feet MSL in late April, Lake Ashtabula slowly fell back to around 1265.90 feet by the end of May. Despite the falling river lev
Source: NOAA National Weather Service Storm Events Database (event 158978). Narrative written by NWS staff at the time of the event.
This event is one of many recorded floods in Ransom County. See the full FEMA flood zone map, NFIP claim totals, and disaster history for the area.