Sep 13, 2010
A surge of moisture streamed north toward Iowa during the afternoon of the 13th. The moisture interacted with a stalled frontal boundary extending nearly east to west across southern Iowa. CAPE values were in the 1000 to 3000 J/kg range just southwest of the front, with lifted indices of -5 to -8 C. The shear was sufficient at 40 to 50 kts. There was limited CAPE available in the -10 to -30 C layer of the atmosphere with 200 to 700 J/kg available. The downdraft CAPE was between 600 and 900
Source: NOAA National Weather Service Storm Events Database (event 249967). Narrative written by NWS staff at the time of the event.
This event is one of many recorded floods in Appanoose County. See the full FEMA flood zone map, NFIP claim totals, and disaster history for the area.