A very warm air mass with rich low-level moisture and fairly dry mid-levels was in place over eastern Kentucky. With little in the way of capping, showers and storms quickly blossomed toward midday, especially near the I-64 corridor where an outflow, the lone remnants of an upstream storm cluster, likely provided the trigger. While the initial cells were rather disorganized, slowly increasing westerly winds in the mid-levels, ahead of a strong cold front, provided sufficient shear for the storms to loosely organize into lines, some of which took on a bowing structure. The bowing segments which produced the strongest gusts were oriented more north-to-south, perpendicular to the strengthening mid-level winds. The focus for the storms gradually shifted southeast through the afternoon, ahead of conglomerating thunderstorm outflows. Numerous reports of downed trees and branches were received, along with isolated instances of damage to homes and other structures. Wind gusts between 40 and 57 mph were recorded by several local weather stations, but the strongest winds appear to have missed those locations.

Thunderstorm Wind in LAUREL, KENTUCKY
From 21-JUN-21 16:08:00 to 21-JUN-21 16:08:00 (EST-5)
Location: MC WHORTER
Magnitude: 50.00 EG
Property damage: 1.00K
Crop damage: 0.00K
Reported by: County Official

A county official reported that strong thunderstorm wind gusts had caused a tree to fall onto a powerline near the intersection of Twin Branch Road and KY-638.

Thunderstorm Wind in CLAY, KENTUCKY
From 21-JUN-21 16:47:00 to 21-JUN-21 16:47:00 (EST-5)
Location: ASHERS FORK
Magnitude: 50.00 EG
Property damage: 0.00K
Crop damage: 0.10K
Reported by: 911 Call Center

The Clay County dispatch reported that strong thunderstorm wind gusts had knocked down a tree onto KY-1524.

Thunderstorm Wind in HARLAN, KENTUCKY
From 21-JUN-21 17:40:00 to 21-JUN-21 17:40:00 (EST-5)
Location: CLOVER
Magnitude: 50.00 EG
Property damage: 0.00K
Crop damage: 1.00K
Reported by: Department of Highways

The highway department reported that strong thunderstorm wind gusts caused multiple trees to fall down across Cloverlick Creek Road.

Thunderstorm Wind in LESLIE, KENTUCKY
From 21-JUN-21 15:18:00 to 21-JUN-21 15:18:00 (EST-5)
Location: CONFLUENCE
Magnitude: 50.00 EG
Property damage: 0.10K
Crop damage: 0.10K
Reported by: Department of Highways

The highway department reported that strong thunderstorm wind gusts had knocked down a tree down across KY-257 in Confluence.

Thunderstorm Wind in ROCKCASTLE, KENTUCKY
From 21-JUN-21 15:42:00 to 21-JUN-21 15:42:00 (EST-5)
Location: MT VERNON
Magnitude: 50.00 EG
Property damage: 0.25K
Crop damage: 0.00K
Reported by: 911 Call Center

The Rockcastle County dispatch reported that strong thunderstorm wind gusts had knocked down a large tree branch, partially blocking Valley View Road.

Thunderstorm Wind in ROCKCASTLE, KENTUCKY
From 21-JUN-21 13:46:00 to 21-JUN-21 13:46:00 (EST-5)
Location: RENFRO VLY
Magnitude: 50.00 EG
Property damage: 0.25K
Crop damage: 0.00K
Reported by: 911 Call Center

The Rockcastle County dispatch reported a tree downed onto the road near the intersection of Mount Zion and Renfro Creek Road.

Thunderstorm Wind in ROCKCASTLE, KENTUCKY
From 21-JUN-21 13:51:00 to 21-JUN-21 13:51:00 (EST-5)
Location: ROUNDSTONE
Magnitude: 50.00 EG
Property damage: 0.25K
Crop damage: 0.00K
Reported by: Social Media

Pictures on social media showed trees and limbs blown down by strong thunderstorm wind gusts in Roundstone.

Thunderstorm Wind in WAYNE, KENTUCKY
From 21-JUN-21 15:14:00 to 21-JUN-21 15:14:00 (EST-5)
Location: MONTICELLO WAYNE ARP
Magnitude: 55.00 EG
Property damage: 3.00K
Crop damage: 0.00K
Reported by: 911 Call Center

The Wayne County dispatch reported that powerful thunderstorm wind gusts had knocked down a tree onto a home along Chesney Street in Monticello.

Thunderstorm Wind in ROCKCASTLE, KENTUCKY
From 21-JUN-21 13:48:00 to 21-JUN-21 13:48:00 (EST-5)
Location: MT VERNON
Magnitude: 50.00 EG
Property damage: 0.00K
Crop damage: 0.10K
Reported by: 911 Call Center

The Rockcastle County dispatch reported that strong thunderstorm wind gusts knocked down a tree near the intersection of West Main Street and Old Somerset Road.

Thunderstorm Wind in ROCKCASTLE, KENTUCKY
From 21-JUN-21 13:49:00 to 21-JUN-21 13:49:00 (EST-5)
Location: ROUNDSTONE
Magnitude: 60.00 EG
Property damage: 5.00K
Crop damage: 0.00K
Reported by: Broadcast Media

The Hazard and Lexington broadcast media reported that powerful thunderstorm wind gusts caused a 100-foot antenna tower to fall onto a home along Grace Loop Road. Other than a dented roof, there was no apparent structural damage to the home. Multiple trees and branches were also blown down around the home.

Thunderstorm Wind in ROCKCASTLE, KENTUCKY
From 21-JUN-21 15:55:00 to 21-JUN-21 15:55:00 (EST-5)
Location: LIVINGSTON
Magnitude: 50.00 EG
Property damage: 0.00K
Crop damage: 0.25K
Reported by: Department of Highways

The highway department reported that strong thunderstorm wind gusts caused a tree to fall across KY-1955 between mile markers 1 and 2.

Thunderstorm Wind in ROCKCASTLE, KENTUCKY
From 21-JUN-21 13:49:00 to 21-JUN-21 13:49:00 (EST-5)
Location: ROUNDSTONE
Magnitude: 50.00 EG
Property damage: 0.00K
Crop damage: 0.10K
Reported by: 911 Call Center

The Rockcastle County dispatch reported that strong thunderstorm wind gusts had knocked down a tree near the intersection of Old Sigmon Loop and US-25.

Thunderstorm Wind in OWSLEY, KENTUCKY
From 21-JUN-21 14:41:00 to 21-JUN-21 14:41:00 (EST-5)
Location: BOONEVILLE
Magnitude: 50.00 EG
Property damage: 0.00K
Crop damage: 0.50K
Reported by: 911 Call Center

The Owsley County dispatch reported that strong thunderstorm wind gusts had knocked down a tree across Fish Creek School Road.

Thunderstorm Wind in WAYNE, KENTUCKY
From 21-JUN-21 15:14:00 to 21-JUN-21 15:14:00 (EST-5)
Location: MONTICELLO WAYNE ARP
Magnitude: 50.00 EG
Property damage: 15.00K
Crop damage: 0.00K
Reported by: 911 Call Center

The Wayne County dispatch reported that powerful thunderstorm winds had blown the roof off of a house along Elm Street in Monticello.

Thunderstorm Wind in POWELL, KENTUCKY
From 21-JUN-21 13:40:00 to 21-JUN-21 13:40:00 (EST-5)
Location: STANTON
Magnitude: 50.00 EG
Property damage: 0.00K
Crop damage: 0.05K
Reported by: NWS Employee

An NWS employee reported that strong thunderstorm wind gusts knocked down a small tree along KY-615, near the intersection with Thorpe Ridge Road.

Thunderstorm Wind in WAYNE, KENTUCKY
From 21-JUN-21 15:03:00 to 21-JUN-21 15:03:00 (EST-5)
Location: WAIT
Magnitude: 50.00 EG
Property damage: 0.00K
Crop damage: 0.25K
Reported by: 911 Call Center

The Wayne County dispatch reported that strong thunderstorm wind gusts had knocked down a tree onto KY-1009 near Marcum Road.

Thunderstorm Wind in WHITLEY, KENTUCKY
From 21-JUN-21 16:19:00 to 21-JUN-21 16:19:00 (EST-5)
Location: JULIP
Magnitude: 50.00 EG
Property damage: 1.00K
Crop damage: 0.00K
Reported by: Social Media

Pictures on social media show downed tree limbs along with minor damage to a roof near Louden, all caused by strong thunderstorm wind gusts.

Thunderstorm Wind in MORGAN, KENTUCKY
From 21-JUN-21 13:25:00 to 21-JUN-21 13:25:00 (EST-5)
Location: GRASSY CREEK
Magnitude: 50.00 EG
Property damage: 5.00K
Reported by: Emergency Manager

The Morgan County emergency management reported that strong thunderstorm wind gusts had knocked down numerous trees across the county, including at least one tree over the road at Grassy Creek.

Thunderstorm Wind in MORGAN, KENTUCKY
From 21-JUN-21 13:28:00 to 21-JUN-21 13:28:00 (EST-5)
Location: WEST LIBERTY
Magnitude: 50.00 EG
Property damage: 3.00K
Crop damage: 1.00K
Reported by: Emergency Manager

The Morgan County emergency management reported that strong thunderstorm wind gusts had knocked down multiple trees in the trailer park just off of KY-7, and that at least one tree had fallen onto a mobile home.

Thunderstorm Wind in ROCKCASTLE, KENTUCKY
From 21-JUN-21 13:56:00 to 21-JUN-21 13:56:00 (EST-5)
Location: DISPUTANTA
Magnitude: 50.00 EG
Property damage: 0.75K
Crop damage: 0.00K
Reported by: Social Media

Pictures on social media showed a tree that had been knocked down by strong thunderstorm wind gusts and resulted in some damage to an outdoor structure.

Thunderstorm Wind in PULASKI, KENTUCKY
From 21-JUN-21 15:27:00 to 21-JUN-21 15:27:00 (EST-5)
Location: SOMERSET
Magnitude: 55.00 EG
Property damage: 4.00K
Crop damage: 0.00K
Reported by: 911 Call Center

The Pulaski County dispatch reported that strong thunderstorm wind gusts had knocked down multiple trees along Jasper Street, with one tree falling onto powerlines near the intersection with Mount Vernon Street.

Thunderstorm Wind in JACKSON, KENTUCKY
From 21-JUN-21 14:24:00 to 21-JUN-21 14:24:00 (EST-5)
Location: PRIVETT
Magnitude: 50.00 EG
Property damage: 0.00K
Crop damage: 0.50K
Reported by: 911 Call Center

The Jackson County dispatch reported that strong thunderstorm wind gusts had knocked down multiple trees onto KY-587.

Thunderstorm Wind in WAYNE, KENTUCKY
From 21-JUN-21 15:13:00 to 21-JUN-21 15:13:00 (EST-5)
Location: SLAT
Magnitude: 50.00 EG
Property damage: 1.00K
Crop damage: 0.10K
Reported by: 911 Call Center

The Wayne County dispatch reported that strong thunderstorm winds had blown down a tree, blocking KY-858 near Bethesda Rd.

Thunderstorm Wind in POWELL, KENTUCKY
From 21-JUN-21 13:38:00 to 21-JUN-21 13:38:00 (EST-5)
Location: STANTON
Magnitude: 50.00 EG
Property damage: 0.10K
Crop damage: 0.10K
Reported by: NWS Employee

An NWS employee reported a large tree snapped due to strong thunderstorm wind gusts along Pompeii Road, near the intersection with Thorpe Ridge Road.

Thunderstorm Wind in JACKSON, KENTUCKY
From 21-JUN-21 14:12:00 to 21-JUN-21 14:12:00 (EST-5)
Location: SHIRLEY
Magnitude: 50.00 EG
Property damage: 0.00K
Crop damage: 0.10K
Reported by: 911 Call Center

The Jackson County dispatch reported that strong thunderstorm wind gusts had knocked down a tree across Owsley Fork Road.

Thunderstorm Wind in WAYNE, KENTUCKY
From 21-JUN-21 15:08:00 to 21-JUN-21 15:08:00 (EST-5)
Location: EADSVILLE
Magnitude: 50.00 EG
Property damage: 0.25K
Crop damage: 0.00K
Reported by: 911 Call Center

The Wayne County dispatch reported that strong thunderstorm wind gusts had knocked down a tree onto KY-1720.

Thunderstorm Wind in MENIFEE, KENTUCKY
From 21-JUN-21 14:06:00 to 21-JUN-21 14:06:00 (EST-5)
Location: WELLINGTON
Magnitude: 50.00 EG
Crop damage: 0.10K
Reported by: Department of Highways

The highway department reported that strong thunderstorm wind gusts had blown a tree down across Byrde Ridge Road.

Thunderstorm Wind in KNOX, KENTUCKY
From 21-JUN-21 16:34:00 to 21-JUN-21 16:34:00 (EST-5)
Location: BIMBLE
Magnitude: 50.00 EG
Property damage: 0.00K
Crop damage: 0.10K
Reported by: 911 Call Center

The Knox County dispatch reported that strong thunderstorm wind gusts had knocked down a tree along KY-1304 near the intersection with US-25.

Thunderstorm Wind in WAYNE, KENTUCKY
From 21-JUN-21 15:18:00 to 21-JUN-21 15:18:00 (EST-5)
Location: BETSEY
Magnitude: 50.00 EG
Property damage: 0.50K
Crop damage: 0.50K
Reported by: 911 Call Center

The Wayne County dispatch reported that strong thunderstorm wind gusts caused a tree to fall onto KY-1619, blocking the roadway.

Thunderstorm Wind in PULASKI, KENTUCKY
From 21-JUN-21 15:27:00 to 21-JUN-21 15:27:00 (EST-5)
Location: SOMERSET
Magnitude: 50.00 EG
Property damage: 3.00K
Crop damage: 0.00K
Reported by: 911 Call Center

The Pulaski County dispatch reported that multiple trees had fallen along Ohio Street due to strong thunderstorm wind gusts.

Thunderstorm Wind in WAYNE, KENTUCKY
From 21-JUN-21 15:16:00 to 21-JUN-21 15:16:00 (EST-5)
Location: MONTICELLO
Magnitude: 55.00 EG
Property damage: 6.50K
Crop damage: 0.00K
Reported by: 911 Call Center

Wayne County dispatch reported that very strong thunderstorm wind gusts had caused a tree to fall onto a mobile home and vehicle along Tennessee Street just southeast of Monticello.

Thunderstorm Wind in PULASKI, KENTUCKY
From 21-JUN-21 15:27:00 to 21-JUN-21 15:27:00 (EST-5)
Location: WEST SOMERSET
Magnitude: 50.00 EG
Property damage: 3.00K
Crop damage: 0.00K
Reported by: 911 Call Center

The Pulaski County dispatch reported multiple trees knocked down by strong thunderstorm wind gusts at the intersection of Hope Way and Railroad Street.

Thunderstorm Wind in MAGOFFIN, KENTUCKY
From 21-JUN-21 15:32:00 to 21-JUN-21 15:32:00 (EST-5)
Location: GUNLOCK
Magnitude: 50.00 EG
Property damage: 0.00K
Crop damage: 0.10K
Reported by: 911 Call Center

The Magoffin County dispatch reported that strong thunderstorm wind gusts had blown a tree down onto KY-7 near the intersection with Straight Fork Road.

Thunderstorm Wind in BELL, KENTUCKY
From 21-JUN-21 16:27:00 to 21-JUN-21 16:27:00 (EST-5)
Location: MIDDLESBORO BELL ARP
Magnitude: 50.00 EG
Property damage: 3.00K
Crop damage: 0.00K
Reported by: 911 Call Center

The Bell County dispatch reported that strong thunderstorm wind gusts had knocked down trees onto Hurst Road just off KY-119.

Thunderstorm Wind in FLOYD, KENTUCKY
From 21-JUN-21 15:48:00 to 21-JUN-21 15:48:00 (EST-5)
Location: ENDICOTT
Magnitude: 50.00 EG
Property damage: 0.00K
Crop damage: 0.10K
Reported by: 911 Call Center

The Floyd County dispatch reported that strong thunderstorm wind gusts had downed a tree on KY-194, blocking the highway on a hill grade near Cow Creek.

Thunderstorm Wind in BELL, KENTUCKY
From 21-JUN-21 16:27:00 to 21-JUN-21 16:27:00 (EST-5)
Location: BINGHAMTON
Magnitude: 50.00 EG
Property damage: 0.25K
Crop damage: 0.00K
Reported by: 911 Call Center

The Bell County dispatch reported that thunderstorm wind gusts had knocked a tree down onto Happy Hollow Road.

Thunderstorm Wind in KNOX, KENTUCKY
From 21-JUN-21 16:29:00 to 21-JUN-21 16:29:00 (EST-5)
Location: PROVIDENCE
Magnitude: 50.00 EG
Property damage: 0.25K
Crop damage: 0.00K
Reported by: 911 Call Center

The Knox County dispatch reported that strong thunderstorm wind gusts had blown down a tree onto KY-459 near the intersection with KY-11.