A stationary front remained anchored over northern Arkansas to the Ohio Valley for several days.  There were some isolated large hail reports as well as several rounds of very heavy rainfall which caused flash flooding through the 26th of April.

Hail in CRAWFORD, MISSOURI
From 23-APR-11 16:37:00 to 23-APR-11 16:38:00 (CST-6)
Location: CUBA
Magnitude: 1.00 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Law Enforcement

Hail in CRAWFORD, MISSOURI
From 23-APR-11 16:41:00 to 23-APR-11 16:41:00 (CST-6)
Location: LEASBURG
Magnitude: 1.50 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Hail in CRAWFORD, MISSOURI
From 23-APR-11 16:45:00 to 23-APR-11 16:45:00 (CST-6)
Location: BOURBON
Magnitude: 1.50 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Flash Flood in REYNOLDS, MISSOURI
From 23-APR-11 22:00:00 to 26-APR-11 03:50:00 (CST-6)
Location: FLETCHER MINE
Flood cause: Heavy Rain
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Department of Highways

Between 6 and 9 inches of rain fell over several days in Reynolds County.  Numerous roads were flooded including Route B south of Reynolds, Highway F just west of Ellington, and Route 106 in Ellington.  The heavy rain caused Logan Creek in Ellington to rise above record levels and prompted portions of town to be evacuated due to flooding.

Flash Flood in IRON, MISSOURI
From 23-APR-11 09:50:00 to 26-APR-11 03:50:00 (CST-6)
Location: VIBURNUM
Flood cause: Heavy Rain
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Department of Highways

Between 6 and 9 inches of rain fell over several days causing flash flooding.  Numerous roads were flooded including Route F northeast of Vulcan and Highway 49 near Annapolis.

Flash Flood in MADISON, MISSOURI
From 23-APR-11 22:15:00 to 26-APR-11 03:50:00 (CST-6)
Location: ROSELLE
Flood cause: Heavy Rain
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Department of Highways

Between 7 and 10 inches of rain fell over several days causing flash flooding.  Numerous roads were flooded including Routes C, F and V.

Flash Flood in WASHINGTON, MISSOURI
From 24-APR-11 16:00:00 to 26-APR-11 03:50:00 (CST-6)
Location: BARYTIES
Flood cause: Heavy Rain
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Department of Highways

Between 4 and 6 inches of rain fell over several days causing flash flooding.  Numerous roads were flooded including Route E.

Flash Flood in CRAWFORD, MISSOURI
From 24-APR-11 16:00:00 to 26-APR-11 03:50:00 (CST-6)
Location: BOURBON
Flood cause: Heavy Rain
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Department of Highways

Between 4 and 6 inches of rain fell over several days causing flash flooding.  Numerous roads were flooded countywide.

Flash Flood in JEFFERSON, MISSOURI
From 24-APR-11 16:00:00 to 26-APR-11 03:50:00 (CST-6)
Location: IMPERIAL
Flood cause: Heavy Rain
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Law Enforcement

Between 4 and 6 inches of rain fell over several days causing flash flooding.  Numerous roads were flooded including State Highway AA at Weaver Road, Cedar Hill Road between State Highway BB and B, the intersection of Engledow and Upper Blackwell Roads, and Old State Highway H in Fletcher.