Thunderstorms developed over northern Missouri north of warm front that was lifting through the region.  There were numerous reports of large hail and damaging winds.

Thunderstorm Wind in RALLS, MISSOURI
From 09-JUN-11 17:05:00 to 09-JUN-11 17:07:00 (CST-6)
Location: SPALDING
Magnitude: 52.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: NWS Storm Survey

Thunderstorm winds blew down several large trees onto Highway HH about 3 miles east southeast of Rensselaer. Further to the east on Trabue Lane, about a mile west of U.S. Highway 61, a house had a large section of shingles removed.

Thunderstorm Wind in MARION, MISSOURI
From 09-JUN-11 17:10:00 to 09-JUN-11 17:15:00 (CST-6)
Location: WHITE BEAR
Magnitude: 61.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Several large trees were blown down.  A four foot diameter tree fell onto Paris Gravel Road west of Hannibal.

Hail in MARION, MISSOURI
From 09-JUN-11 17:12:00 to 09-JUN-11 17:12:00 (CST-6)
Location: HANNIBAL
Magnitude: 1.00 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Hail in RALLS, MISSOURI
From 09-JUN-11 17:14:00 to 09-JUN-11 17:14:00 (CST-6)
Location: FLINTHILL
Magnitude: 0.88 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Hail in KNOX, MISSOURI
From 09-JUN-11 21:10:00 to 09-JUN-11 21:10:00 (CST-6)
Location: KNOX CITY
Magnitude: 0.75 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Public

Hail in SHELBY, MISSOURI
From 09-JUN-11 15:51:00 to 09-JUN-11 15:51:00 (CST-6)
Location: SHELBYVILLE CO ARPT
Magnitude: 0.75 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Law Enforcement

Hail in SHELBY, MISSOURI
From 09-JUN-11 16:17:00 to 09-JUN-11 16:17:00 (CST-6)
Location: EMDEN
Magnitude: 0.75 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Hail in RALLS, MISSOURI
From 09-JUN-11 17:05:00 to 09-JUN-11 17:07:00 (CST-6)
Location: FLINTHILL
Magnitude: 1.50 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Thunderstorm Wind in RALLS, MISSOURI
From 09-JUN-11 17:10:00 to 09-JUN-11 17:19:00 (CST-6)
Location: FLINTHILL
Magnitude: 96.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: NWS Storm Survey

A microburst occurred over northeastern Ralls County with damage spread out for about a mile.  Initially some trees were uprooted west of U.S. Highway 61 along Trabue Lane, then as the downburst spread out to the east, numerous other trees were either snapped off or uprooted.  Several homes along Stable Drive, which parallels U.S. Highway 61 to the west, were damaged, one significantly.  The failure point on the house that was significantly damaged was the garage door facing to the east.  The overhang was uplifted and set down. The homes on either side also had their overhangs uplifted and set back down.  However the home in the middle also lost much of its roof with the roof tossed 40 to 50 yards to the west, with insulation thrown over a hundred yards to the west to the tree line.  A bit further to the east along U.S. Highway 61, several billboards were destroyed and a number of trees and tree limbs were blown down up to a mile east of U.S. Highway 61.  The width of the overall damage path was about three quarters of a mile.  No injuries were reported.

Hail in MARION, MISSOURI
From 09-JUN-11 16:50:00 to 09-JUN-11 17:05:00 (CST-6)
Location: WHITE BEAR
Magnitude: 1.25 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter