A severe weather outbreak occurred during the afternoon and early evening hours. An organized line of severe thunderstorms formed over the central Plains states during the night of the 20th. This bowing line of storms progressed southeast across the St. Louis area during the midday hours, then down across the lower Ohio Valley and southeast Missouri during the afternoon. Large areas of wind damage were reported in parts of southeast Missouri. The atmosphere ahead of the storms became strongly unstable, with surface-based capes exceeding 4,000. Given the strong buoyancy, wind profiles were sufficiently strong for widespread severe weather. Deep-layer (0-6 km) wind shear values were no higher than about 30 knots, and 0-1 km shear was about 20 knots. Even though the region was under a broad 500 mb ridge, a moderately strong low-level feed of very moist and unstable air fueled the intense storms as they propagated southeastward.

Hail in WAYNE, MISSOURI
From 21-JUN-19 15:20:00 to 21-JUN-19 15:20:00 (CST-6)
Location: GREENVILLE
Magnitude: 0.75 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Lightning in SCOTT, MISSOURI
From 21-JUN-19 15:30:00 to 21-JUN-19 15:30:00 (CST-6)
Location: SCOTT CITY
Property damage: 50.00K
Crop damage: 0.00K
Reported by: Broadcast Media

A church burned to the ground as a result of a lightning-related fire.

Thunderstorm Wind in SCOTT, MISSOURI
From 21-JUN-19 15:29:00 to 21-JUN-19 15:35:00 (CST-6)
Location: SCOTT CITY
Magnitude: 63.00 MG
Property damage: 2.00K
Crop damage: 0.00K
Reported by: ASOS

A wind gust to 72 mph was measured at the Cape Girardeau airport. Tree limbs were down in Scott City.

Thunderstorm Wind in BUTLER, MISSOURI
From 21-JUN-19 15:30:00 to 21-JUN-19 15:33:00 (CST-6)
Location: POPLR BLUFF DAVIS AR
Magnitude: 51.00 MG
Property damage: 1.00K
Crop damage: 0.00K
Reported by: Emergency Manager

A wind gust to 59 mph was measured at the automated observing station at the Poplar Bluff airport. Near the Wayne County line south of Wappapello, a large tree was blocking Highway T about a mile south of Route KK.

Thunderstorm Wind in BUTLER, MISSOURI
From 21-JUN-19 15:49:00 to 21-JUN-19 15:49:00 (CST-6)
Location: POPLAR BLUFF
Magnitude: 56.00 EG
Property damage: 1.00K
Crop damage: 0.00K
Reported by: Public

A large tree was snapped. A photo was posted on social media.

Thunderstorm Wind in MISSISSIPPI, MISSOURI
From 21-JUN-19 15:50:00 to 21-JUN-19 15:55:00 (CST-6)
Location: CHARLESTON
Magnitude: 61.00 EG
Property damage: 5.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Trees and wires were blown down from Charleston to East Prairie. At least one large tree was uprooted. A street was blocked.

Thunderstorm Wind in NEW MADRID, MISSOURI
From 21-JUN-19 16:08:00 to 21-JUN-19 16:23:00 (CST-6)
Location: MATTHEWS
Magnitude: 56.00 EG
Property damage: 5.00K
Crop damage: 0.00K
Reported by: Emergency Manager

Trees were blown down at Matthews. Wind gusts were estimated from 60 to 70 mph by emergency management in New Madrid.

Thunderstorm Wind in CARTER, MISSOURI
From 21-JUN-19 14:43:00 to 21-JUN-19 14:45:00 (CST-6)
Location: VAN BUREN
Magnitude: 61.00 EG
Property damage: 20.00K
Crop damage: 0.00K
Reported by: Emergency Manager

Within the Ozark National Scenic Riverways, a tree fell on a boat on the Current River. The boat was traveling downstream in the vicinity of the Waymeyer Shute river access point. The 22-year-old male driver of the boat was killed, and two passengers in their 20's were moderately injured. The injured parties were from the local area and were treated at a local hospital. In the same general vicinity, trees and large tree limbs were down on the north end of M Highway.

Thunderstorm Wind in BOLLINGER, MISSOURI
From 21-JUN-19 15:00:00 to 21-JUN-19 15:10:00 (CST-6)
Location: PATTON
Magnitude: 61.00 EG
Property damage: 50.00K
Crop damage: 0.00K
Reported by: Broadcast Media

Widespread damaging winds crossed much of the county. Numerous trees and power lines were down in parts of Bollinger County. At least one vehicle was damaged by a falling tree. Power lines were down at Patton. Four miles south-southwest of Patton, trees were snapped, and there was damage to the porch on a house.

Thunderstorm Wind in CAPE GIRARDEAU, MISSOURI
From 21-JUN-19 15:17:00 to 21-JUN-19 15:30:00 (CST-6)
Location: JACKSON
Magnitude: 65.00 EG
Property damage: 100.00K
Crop damage: 0.00K
Reported by: Broadcast Media

Widespread damaging winds accompanied a line of thunderstorms across much of Cape Girardeau County. Numerous trees and tree limbs were blown down. Bricks were blown from an apartment building in Jackson, and heavy tree damage occurred in the area. In Allenville, multiple trees and tree limbs were down. Siding was peeled off. In Cape Girardeau, windows were blown out of a store and some cars, along with roof and shingle damage. Near Delta, significant shingle damage occurred at a house.

Thunderstorm Wind in SCOTT, MISSOURI
From 21-JUN-19 15:27:00 to 21-JUN-19 15:40:00 (CST-6)
Location: CHAFFEE
Magnitude: 61.00 EG
Property damage: 75.00K
Crop damage: 0.00K
Reported by: Emergency Manager

Across the county, trees and power lines were down. Some of the trees were across roads. In the city of Chaffee, roofs were damaged and trees were down. Power outages were reported.