A strong cold front moved through the region triggering showers and storms. Some of the storms produced damaging winds and a couple of tornadoes.

Thunderstorm Wind in MADISON, ILLINOIS
From 15-JUL-20 15:25:00 to 15-JUL-20 15:40:00 (CST-6)
Location: FAIRMONT
Magnitude: 57.00 MG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Widespread wind damage occurred across portions of Madison County. In Alton, several large trees were blown down and two homes sustained moderate roof damage from the fallen trees. One unoccupied car suffered major damage from a fallen tree. Also, numerous tree limbs and trees were blown down in Roxana, Wood River, Granite City and Edwardsville.

Thunderstorm Wind in MONTGOMERY, ILLINOIS
From 15-JUL-20 16:03:00 to 15-JUL-20 16:03:00 (CST-6)
Location: WALSHVILLE
Magnitude: 56.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Law Enforcement

Thunderstorm winds blew down a large tree in town.

Tornado in MACOUPIN, ILLINOIS
From 15-JUL-20 15:47:00 to 15-JUL-20 15:48:00 (CST-6)
Location: PALMYRA ZELMER ARPT
Tornado F-scale: EFU
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Two spotters reported a tornado briefly touched down in a field verified with a picture.  This tornado touched down northeast of Hettick, IL, southwest of Otter Lake.  The tornado was very short lived and did not damage any rating indicators, thus it will be labeled an EF-unknown.

Tornado in MONTGOMERY, ILLINOIS
From 15-JUL-20 16:18:00 to 15-JUL-20 16:25:00 (CST-6)
Location: FARMERSVILLE
Tornado F-scale: EF0
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Emergency Manager

A tornado developed about 3 miles north-northwest of Farmersville, Illinois, near the intersection of Rovey Lane and East 1st Road. A few storm chasers captured video of the tornado as it moved northeast and then north toward the Montgomery and Sangamon County line. On video the tornado appeared to be multivortex and violent, yet damage in the St. Louis county warning area was limited to a few broken tree branches, flattened corn and the partial destruction of a small outbuilding. Therefore, it was rated as an EF-0 in Montgomery County with a path length of 3.89 miles and a max path width of 300 yards. The tornado continued north into Sangamon County (WFO Central IL CWA) before lifting and dissipating about 2.4 miles south of Divernon. Overall, the tornado was rated EF0 with a total path length of 4.24 miles and a max path width of 300 yards. No deaths or injuries were reported.

Thunderstorm Wind in BOND, ILLINOIS
From 15-JUL-20 16:10:00 to 15-JUL-20 16:10:00 (CST-6)
Location: RENO
Magnitude: 56.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Law Enforcement

Thunderstorm winds blew down a tree onto Terrapin Ridge Road.

Thunderstorm Wind in CLINTON, ILLINOIS
From 15-JUL-20 16:35:00 to 15-JUL-20 16:48:00 (CST-6)
Location: NEW BADEN
Magnitude: 56.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Law Enforcement

Thunderstorm winds blew down several trees in New Baden. One of the trees fell onto a power line knocking it down. In Breese, a large tree limb brought down a power line.

Thunderstorm Wind in FAYETTE, ILLINOIS
From 15-JUL-20 16:42:00 to 15-JUL-20 17:05:00 (CST-6)
Location: DRESSOR
Magnitude: 61.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Law Enforcement

A line of severe storms blew down several large trees. Also, several power lines were blown down in Vandalia.

Thunderstorm Wind in RANDOLPH, ILLINOIS
From 15-JUL-20 17:34:00 to 15-JUL-20 17:34:00 (CST-6)
Location: EDEN
Magnitude: 61.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Law Enforcement

Thunderstorm winds blew down several trees just south of Eden.

Thunderstorm Wind in RANDOLPH, ILLINOIS
From 15-JUL-20 18:24:00 to 15-JUL-20 18:24:00 (CST-6)
Location: CHESTER
Magnitude: 61.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Law Enforcement

Thunderstorm wind blew down several trees in town.

Thunderstorm Wind in ST. CLAIR, ILLINOIS
From 15-JUL-20 16:05:00 to 15-JUL-20 16:32:00 (CST-6)
Location: SWANSEA
Magnitude: 61.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Social Media

Widespread thunderstorm wind damage occurred from Belleville eastward through Mascoutah. In Belleville, multiple trees were blown down as well as power lines. Also, a couple of buildings sustained minor roof damage. In Mascoutah, multiple trees and tree limbs were blown down throughout town. Also, a tree split with one portion falling onto a house and the tornado siren on top of city hall tipped over.

Thunderstorm Wind in MONROE, ILLINOIS
From 15-JUL-20 16:06:00 to 15-JUL-20 16:06:00 (CST-6)
Location: WATERLOO
Magnitude: 61.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Public

Thunderstorm winds blew down multiple utility poles along Hamacher Street.

Thunderstorm Wind in MONTGOMERY, ILLINOIS
From 15-JUL-20 16:15:00 to 15-JUL-20 16:15:00 (CST-6)
Location: BUTLER
Magnitude: 61.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Law Enforcement

Thunderstorm winds blew down several trees between Butler and Hillsboro. Some of the trees fell onto road ways briefly blocking them.

Tornado in MONTGOMERY, ILLINOIS
From 15-JUL-20 16:05:00 to 15-JUL-20 16:06:00 (CST-6)
Location: WALSHVILLE
Tornado F-scale: EF0
Property damage: 0.00K
Crop damage: 0.00K
Reported by: NWS Storm Survey

A combination of a ground survey and satellite data suggests a brief, weak tornado touched down northeast of Walshville, IL. The tornado first touched down in a corn field west of Durbin Road. The tornado then continued northeast, mainly causing tree damage, though some minor structural damage to a house west of Durbin Road also occurred. The tornado quickly lifted as it approached Durbin Road. The tornado was rated as EF0 with a path length of 0.57 miles and max path width of 50 yards.

Tornado in MONTGOMERY, ILLINOIS
From 15-JUL-20 15:58:00 to 15-JUL-20 16:02:00 (CST-6)
Location: WALSHVILLE
Tornado F-scale: EF0
Property damage: 0.00K
Crop damage: 0.00K
Reported by: NWS Storm Survey

A combination of a ground survey and satellite data shows an intermittent tornado path. The tornado touched down just south of Prange Avenue. It snapped and uprooted some trees near a residence on Prange Avenue. Satellite data shows the tornado continued northeast through cornfields, damaging more trees near Sewing and Mt. Olive Trails. Satellite data shows the tornado continued northeast, before lifting just west of Niemanville Trail. The tornado was rated as EF0 with a path length of 3.2 miles and max path width of 75 yards.

Thunderstorm Wind in ST. CLAIR, ILLINOIS
From 15-JUL-20 16:16:00 to 15-JUL-20 16:18:00 (CST-6)
Location: PADERBORN
Magnitude: 61.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Social Media

Thunderstorm winds blew down several power poles along Knab Road. Also, a nearby machine shed was destroyed and another one sustained moderate damage. A number of trees and tree limbs were blown as well.