A cold front was moving through the area triggering showers and thunderstorms.  There were numerous reports of large hail, as well as damaging winds and flash flooding.

Hail in CALLAWAY, MISSOURI
From 10-JUN-11 14:50:00 to 10-JUN-11 14:50:00 (CST-6)
Location: MOKANE
Magnitude: 1.00 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Hail in CALLAWAY, MISSOURI
From 10-JUN-11 15:35:00 to 10-JUN-11 15:37:00 (CST-6)
Location: WILLIAMSBURG
Magnitude: 1.75 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Hail in MONTGOMERY, MISSOURI
From 10-JUN-11 15:59:00 to 10-JUN-11 16:00:00 (CST-6)
Location: WELLSVILLE
Magnitude: 1.00 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Amateur Radio

Hail in GASCONADE, MISSOURI
From 10-JUN-11 16:13:00 to 10-JUN-11 16:13:00 (CST-6)
Location: HERMANN
Magnitude: 2.75 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Hail in MONTGOMERY, MISSOURI
From 10-JUN-11 16:10:00 to 10-JUN-11 16:10:00 (CST-6)
Location: WELLSVILLE
Magnitude: 1.50 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Hail in AUDRAIN, MISSOURI
From 10-JUN-11 16:38:00 to 10-JUN-11 16:41:00 (CST-6)
Location: VANDALIA ARPT
Magnitude: 1.75 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Fire Department/Rescue

Hail in PIKE, MISSOURI
From 10-JUN-11 16:40:00 to 10-JUN-11 16:43:00 (CST-6)
Location: CURRYVILLE
Magnitude: 1.00 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Fire Department/Rescue

Hail in FRANKLIN, MISSOURI
From 10-JUN-11 17:00:00 to 10-JUN-11 17:05:00 (CST-6)
Location: LYON
Magnitude: 1.00 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Hail in AUDRAIN, MISSOURI
From 10-JUN-11 18:46:00 to 10-JUN-11 18:46:00 (CST-6)
Location: MEXICO
Magnitude: 1.00 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Fire Department/Rescue

Hail in AUDRAIN, MISSOURI
From 10-JUN-11 19:11:00 to 10-JUN-11 19:11:00 (CST-6)
Location: THOMPSON
Magnitude: 1.00 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Thunderstorm Wind in AUDRAIN, MISSOURI
From 10-JUN-11 19:00:00 to 10-JUN-11 19:00:00 (CST-6)
Location: FRANCIS
Magnitude: 52.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Thunderstorm winds blew down several large tree limbs.  Also, a truck camper shell was blown onto the roof of a home.

Hail in MARION, MISSOURI
From 10-JUN-11 18:54:00 to 10-JUN-11 18:54:00 (CST-6)
Location: WHITE BEAR
Magnitude: 1.00 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Fire Department/Rescue

Hail in MONTGOMERY, MISSOURI
From 10-JUN-11 19:00:00 to 10-JUN-11 19:00:00 (CST-6)
Location: MONTGOMERY CITY
Magnitude: 1.50 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Amateur Radio

Hail in MONTGOMERY, MISSOURI
From 10-JUN-11 19:15:00 to 10-JUN-11 19:15:00 (CST-6)
Location: MIDDLETOWN
Magnitude: 2.75 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Hail in GASCONADE, MISSOURI
From 10-JUN-11 20:06:00 to 10-JUN-11 20:06:00 (CST-6)
Location: REDBIRD
Magnitude: 0.75 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Flash Flood in ST. LOUIS, MISSOURI
From 10-JUN-11 21:30:00 to 10-JUN-11 23:30:00 (CST-6)
Location: SPANISH LAKE
Flood cause: Heavy Rain
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Up to three inches of rain fell in a short amount of time causing flash flooding.  Several roads were flooded including the intersection of Page Avenue and Ashby Road.

Thunderstorm Wind in WARREN, MISSOURI
From 10-JUN-11 20:35:00 to 10-JUN-11 20:35:00 (CST-6)
Location: WARRENTON
Magnitude: 56.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: County Official

Thunderstorm winds blew down two large trees in town.

Thunderstorm Wind in LINCOLN, MISSOURI
From 10-JUN-11 20:40:00 to 10-JUN-11 20:40:00 (CST-6)
Location: SOUTH TROY
Magnitude: 56.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Law Enforcement

Thunderstorm winds blew down several large trees near the intersection of Highways J and U.

Thunderstorm Wind in FRANKLIN, MISSOURI
From 10-JUN-11 21:00:00 to 10-JUN-11 21:00:00 (CST-6)
Location: JEFFRIESBURG
Magnitude: 56.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: County Official

Thunderstorm winds blew down several large trees near the intersection of U.S. Highway 50 and Highway EE.

Thunderstorm Wind in FRANKLIN, MISSOURI
From 10-JUN-11 21:25:00 to 10-JUN-11 21:25:00 (CST-6)
Location: GRAY SUMMIT
Magnitude: 56.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: County Official

Thunderstorm winds blew down several trees along Highway 100 near Gray Summit.

Thunderstorm Wind in ST. LOUIS, MISSOURI
From 10-JUN-11 21:30:00 to 10-JUN-11 21:30:00 (CST-6)
Location: CLAYTON
Magnitude: 56.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Emergency Manager

Thunderstorm winds blew down a large tree on Washington Avenue.

Flash Flood in AUDRAIN, MISSOURI
From 10-JUN-11 21:15:00 to 11-JUN-11 00:00:00 (CST-6)
Location: SKINNER
Flood cause: Heavy Rain
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Law Enforcement

Up to four inches of rain fell in a short amount of time causing flash flooding.  Several roads were flooded including Highway 15 between one and three miles north of Mexico, it had about a foot and a half of water flowing over it.  Also, Highway J northeast of Mexico was flooded in sections.

Hail in GASCONADE, MISSOURI
From 10-JUN-11 20:28:00 to 10-JUN-11 20:28:00 (CST-6)
Location: OWENSVILLE
Magnitude: 1.75 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Amateur Radio