A stationary frontal boundary triggered several rounds of showers and thunderstorms on July 21st.  One cluster of storms tracked through east-central Illinois during the late morning, blowing down a few trees and power lines across portions of Piatt and Champaign counties.  Additional convection developed further west toward midday, with a line of storms then progressing eastward across much of central Illinois during the afternoon.  Scattered wind damage occurred with this line, while one cell produced an EF-1 tornado near Auburn in Sangamon County.

Hail in SANGAMON, ILLINOIS
From 21-JUL-20 14:32:00 to 21-JUL-20 14:37:00 (CST-6)
Location: PLEASANT PLAINS
Magnitude: 1.00 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Broadcast Media

Thunderstorm Wind in CHAMPAIGN, ILLINOIS
From 21-JUL-20 10:34:00 to 21-JUL-20 10:39:00 (CST-6)
Location: THOMASBORO
Magnitude: 52.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Emergency Manager

Numerous tree branches were blown down.  Power poles were leaning, creating a power outage in town.

Thunderstorm Wind in CHRISTIAN, ILLINOIS
From 21-JUL-20 15:25:00 to 21-JUL-20 15:30:00 (CST-6)
Location: TOVEY
Magnitude: 52.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Emergency Manager

Several 4-inch diameter tree branches were blown into power lines.

Thunderstorm Wind in CHRISTIAN, ILLINOIS
From 21-JUL-20 15:27:00 to 21-JUL-20 15:32:00 (CST-6)
Location: KINCAID
Magnitude: 52.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Emergency Manager

Several 4-inch diameter tree branches were blown into power lines.

Thunderstorm Wind in CHRISTIAN, ILLINOIS
From 21-JUL-20 15:45:00 to 21-JUL-20 15:50:00 (CST-6)
Location: STONINGTON
Magnitude: 52.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Emergency Manager

Several 4-inch diameter tree branches were blown into power lines.

Thunderstorm Wind in CHRISTIAN, ILLINOIS
From 21-JUL-20 16:00:00 to 21-JUL-20 16:05:00 (CST-6)
Location: MOWEAQUA
Magnitude: 52.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Public

A large tree was blown down along County Road 2400 E northwest of Moweaqua.

Thunderstorm Wind in COLES, ILLINOIS
From 21-JUL-20 16:54:00 to 21-JUL-20 16:59:00 (CST-6)
Location: HUMBOLDT
Magnitude: 52.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Law Enforcement

A falling tree pulled a power line down on Southside Drive.

Thunderstorm Wind in SANGAMON, ILLINOIS
From 21-JUL-20 14:50:00 to 21-JUL-20 14:55:00 (CST-6)
Location: JEROME
Magnitude: 52.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Trees and tree branches damaged along Welch Avenue in Jerome.

Thunderstorm Wind in PIATT, ILLINOIS
From 21-JUL-20 10:01:00 to 21-JUL-20 10:06:00 (CST-6)
Location: DELAND
Magnitude: 52.00 EG
Property damage: 50.00K
Crop damage: 0.00K
Reported by: Public

Multiple trees and tree branches were blown down in De Land.  One tree smashed the park pavilion.

Thunderstorm Wind in CHAMPAIGN, ILLINOIS
From 21-JUL-20 10:30:00 to 21-JUL-20 10:35:00 (CST-6)
Location: THOMASBORO
Magnitude: 52.00 EG
Property damage: 175.00K
Crop damage: 0.00K
Reported by: Emergency Manager

Multiple structures were damaged on the southeast side of Thomasboro.

Tornado in SANGAMON, ILLINOIS
From 21-JUL-20 15:05:00 to 21-JUL-20 15:09:00 (CST-6)
Location: COMPRO
Tornado F-scale: EF1
Property damage: 300.00K
Crop damage: 50.00K
Reported by: NWS Storm Survey

A tornado touched down 2.7 miles west-northwest of Auburn at 4:05 PM CDT.  The tornado tracked northeastward, destroying 2 large sheds and 2 grain bins.  It blew over an RV, damaged numerous trees, and caused minor roof damage to 2 houses and 2 large pole barns.  The tornado also damaged around 100 acres of corn and soybeans before dissipating near the intersection of Illinois Route 4 and Curran Road about 1.1 miles north of Auburn at 4:09 PM CDT.

Thunderstorm Wind in SANGAMON, ILLINOIS
From 21-JUL-20 15:08:00 to 21-JUL-20 15:13:00 (CST-6)
Location: AUBURN
Magnitude: 61.00 EG
Property damage: 100.00K
Crop damage: 0.00K
Reported by: Emergency Manager

Numerous trees and tree branches were blown down in Auburn.  The roofs of two homes were damaged by falling branches.

Thunderstorm Wind in SANGAMON, ILLINOIS
From 21-JUL-20 15:18:00 to 21-JUL-20 15:23:00 (CST-6)
Location: PAWNEE
Magnitude: 61.00 EG
Property damage: 70.00K
Crop damage: 0.00K
Reported by: Emergency Manager

Power poles were blown down.

Thunderstorm Wind in SANGAMON, ILLINOIS
From 21-JUL-20 15:20:00 to 21-JUL-20 15:25:00 (CST-6)
Location: PAWNEE
Magnitude: 61.00 EG
Property damage: 40.00K
Crop damage: 0.00K
Reported by: Emergency Manager

Numerous trees were blown down throughout Pawnee.

Thunderstorm Wind in CHRISTIAN, ILLINOIS
From 21-JUL-20 15:34:00 to 21-JUL-20 15:39:00 (CST-6)
Location: EDINBURG
Magnitude: 52.00 EG
Property damage: 20.00K
Crop damage: 0.00K
Reported by: Emergency Manager

Several 4-inch diameter tree branches were blown into power lines.  An old power pole was snapped on the west side of town.

Thunderstorm Wind in CHRISTIAN, ILLINOIS
From 21-JUL-20 16:00:00 to 21-JUL-20 16:05:00 (CST-6)
Location: MOWEAQUA
Magnitude: 52.00 EG
Property damage: 15.00K
Crop damage: 0.00K
Reported by: Emergency Manager

Multiple trees were snapped on the west side of Moweaqua.