Multiple rounds of severe storms moved through the area on the afternoon of August 12. The first round occurred in the early afternoon along a mostly stationary boundary just north of Interstate 70. These storms produced scattered instances of damaging winds. Despite the storm coverage being widespread the damaging winds were mostly relegated to small pockets of strong winds within the larger area of thunderstorms. The second round of severe storms occurred later in the evening and consisted of some large hail in the KC metro area. Overall, impacts were pretty low, with little to no notable damage.

Hail in LIVINGSTON, MISSOURI
From 12-AUG-21 13:40:00 to 12-AUG-21 13:41:00 (CST-6)
Location: AVALON
Magnitude: 1.00 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Hail in PLATTE, MISSOURI
From 12-AUG-21 14:36:00 to 12-AUG-21 14:37:00 (CST-6)
Location: PLATTE CITY
Magnitude: 1.00 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Public

Hail in PLATTE, MISSOURI
From 12-AUG-21 14:56:00 to 12-AUG-21 14:57:00 (CST-6)
Location: (MCI)KS CITY INTL AR
Magnitude: 1.00 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Hail in JACKSON, MISSOURI
From 12-AUG-21 15:40:00 to 12-AUG-21 15:41:00 (CST-6)
Location: BLUE SPGS
Magnitude: 1.00 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: NWS Employee

Hail in JACKSON, MISSOURI
From 12-AUG-21 15:47:00 to 12-AUG-21 15:49:00 (CST-6)
Location: BLUE SPGS
Magnitude: 1.75 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Public

Hail in JACKSON, MISSOURI
From 12-AUG-21 15:54:00 to 12-AUG-21 15:56:00 (CST-6)
Location: BLUE SPGS
Magnitude: 1.25 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Public

Hail in JACKSON, MISSOURI
From 12-AUG-21 16:00:00 to 12-AUG-21 16:01:00 (CST-6)
Location: OAK GROVE
Magnitude: 1.00 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Public

Hail in JACKSON, MISSOURI
From 12-AUG-21 16:00:00 to 12-AUG-21 16:02:00 (CST-6)
Location: BLUE SPGS
Magnitude: 1.25 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Public

Hail in JACKSON, MISSOURI
From 12-AUG-21 16:02:00 to 12-AUG-21 16:04:00 (CST-6)
Location: BLUE SPGS
Magnitude: 1.25 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Public

Hail in JACKSON, MISSOURI
From 12-AUG-21 19:39:00 to 12-AUG-21 19:40:00 (CST-6)
Location: INDEPENDENCE MEM ARP
Magnitude: 1.00 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Public

Report from MPing.

Thunderstorm Wind in LIVINGSTON, MISSOURI
From 12-AUG-21 13:35:00 to 12-AUG-21 13:38:00 (CST-6)
Location: CHILLICOTHE
Magnitude: 52.00 EG
Reported by: Public

Several large tree limbs around 4 to 6 inches in diameter broke. Power outages were also reported with this storm.

Thunderstorm Wind in JACKSON, MISSOURI
From 12-AUG-21 15:45:00 to 12-AUG-21 15:48:00 (CST-6)
Location: BLUE SPGS
Magnitude: 52.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: NWS Employee

Several tree limbs were down at this location.

Thunderstorm Wind in JACKSON, MISSOURI
From 12-AUG-21 16:17:00 to 12-AUG-21 16:20:00 (CST-6)
Location: LEES SUMMIT ARPT
Magnitude: 68.00 MG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: ASOS

The ASOS at Lee's Summit Airport gusted to 78 mph.

Thunderstorm Wind in JACKSON, MISSOURI
From 12-AUG-21 15:45:00 to 12-AUG-21 15:48:00 (CST-6)
Location: BLUE SPGS
Magnitude: 52.00 EG
Reported by: Storm Chaser

A fence was destroyed, tree limbs were broken, and a large grill was thrown several yards.

Thunderstorm Wind in LINN, MISSOURI
From 12-AUG-21 14:15:00 to 12-AUG-21 14:18:00 (CST-6)
Location: MARCELINE
Magnitude: 52.00 EG
Reported by: Public

Tree limbs were down and power outages were reported in Marceline.

Thunderstorm Wind in PLATTE, MISSOURI
From 12-AUG-21 15:00:00 to 12-AUG-21 15:03:00 (CST-6)
Location: (MCI)KS CITY INTL AR
Magnitude: 52.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

A trained spotter near Kansas City International Airport reported 60 mph wind gusts. Nearby ASOS at KC International reported 57 mph.

Thunderstorm Wind in CASS, MISSOURI
From 12-AUG-21 16:52:00 to 12-AUG-21 16:55:00 (CST-6)
Location: RAYMORE
Magnitude: 52.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: NWS Employee

NWS Employee reported 60 mph wind gusts.

Thunderstorm Wind in CASS, MISSOURI
From 12-AUG-21 16:50:00 to 12-AUG-21 16:53:00 (CST-6)
Location: PLEASANT HILL ARPT
Magnitude: 52.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Emergency Manager

A large tree was down on HWY 58 near Gray Drive, shutting down the highway.

Thunderstorm Wind in CHARITON, MISSOURI
From 12-AUG-21 14:15:00 to 12-AUG-21 14:18:00 (CST-6)
Location: ROTHVILLE
Magnitude: 56.00 EG
Reported by: Emergency Manager

Emergency management reported outbuildings damaged near JJ and Twitchell Road.

Thunderstorm Wind in CHARITON, MISSOURI
From 12-AUG-21 14:20:00 to 12-AUG-21 14:23:00 (CST-6)
Location: MIKE
Magnitude: 56.00 EG
Reported by: Public

Emergency management reported some structure damage near HWY E and Westville Road.

Thunderstorm Wind in JACKSON, MISSOURI
From 12-AUG-21 15:38:00 to 12-AUG-21 15:41:00 (CST-6)
Location: FAIRMONT
Magnitude: 71.00 MG
Reported by: Public

A spotter with wind instruments reported a 82 mph wind gust, along with tree and powerline damage at E College St and ETC Lea Road.