The evening of Wednesday, June 22 brought a favorable setup for tornadoes across northern Illinois. There were approximately 3 supercells which brought numerous tornadoes to the NWS Chicago CWA. NWS ground survey data combined with aerial photography, radar and satellite imagery, and detailed reports from trained storm spotters have helped to determine that 15 tornadoes occurred across the NWS Chicago County Warning Area.

Tornado in GRUNDY, ILLINOIS
From 22-JUN-16 20:10:00 to 22-JUN-16 20:15:00 (CST-6)
Location: LANGHAM
Tornado F-scale: EF1
Reported by: NWS Storm Survey

This is a continuation of the tornado that began in LaSalle County. Approximately 2.3 miles to the north-northeast of Seneca, there was a major loss of roof panels off a farm outbuilding. As the tornado moved to the southeast, there was small limbs broken. (Tornado 10b of 15).

Tornado in LA SALLE, ILLINOIS
From 22-JUN-16 19:53:00 to 22-JUN-16 20:10:00 (CST-6)
Location: (MMO)MARSEILLES
Tornado F-scale: EF2
Property damage: 0
Crop damage: 0
Reported by: NWS Storm Survey

The tornado started approximately two tenths of a mile to the southwest of the intersection of N 30th Rd and E 24th Rd. There were some small limbs broken at the starting point, and the tornado moved to the east-southeast for around three quarters of a mile. Approximately 3.3 miles to the northeast of Marseilles, a house lost a significant portion of the roof and the walls of a farm outbuilding were collapsed. The strongest (EF-2) damage, which was 4.3 miles to the east-northeast of Marseilles, was to trees and one outbuilding at a farmstead, and also to high tension power trusses, four of which were toppled/crumpled. About three tenths of a mile northwest of the intersection of N 28th Rd and E 29th Rd, there were a few farm buildings which either lost the entire roof structure or the walls were collapsed. The tornado had peak winds estimated to 120 mph. The tornado continued into Grundy County. (Tornado 10a of 15).

Tornado in IROQUOIS, ILLINOIS
From 22-JUN-16 21:12:00 to 22-JUN-16 21:15:00 (CST-6)
Location: CLIFTON
Tornado F-scale: EF1
Reported by: NWS Storm Survey

The tornado started approximately 2.75 miles to the north-northeast of the intersection of Route 116 and 700 East Rd.  As the tornado moved to the southeast, a farm building located off 2800 North Rd had a large trailer filled with tools picked up and turned.  There were also metal outbuildings destroyed, as well as an empty grain bin tossed across the driveway into a field. The debris deposited in a field to southeast for a half mile. Corn was laid down upstream northwest of location.  At a residence located along N 900 E Rd, several trees were taken out on the property but most trees were undamaged and house also was undamaged.  Peak winds were estimated at 100 mph, and max width was 50 yards. (Tornado 12 of 15).

Tornado in LA SALLE, ILLINOIS
From 22-JUN-16 19:11:00 to 22-JUN-16 19:12:00 (CST-6)
Location: TROY GROVE
Tornado F-scale: EF1
Reported by: NWS Storm Survey

The tornado started approximately two tenths of a mile to the southwest of the intersection of Peru St and South St.  As it moved east, it went through a cemetery doing a lot of tree damage.  The tornado stopped near the intersection of Vermillion St at the train tracks.  Peak winds were estimated at 100 to 110 mph, and max width was 50 yards. (Tornado 7 of 15).

Tornado in LA SALLE, ILLINOIS
From 22-JUN-16 19:32:00 to 22-JUN-16 19:33:00 (CST-6)
Location: PRAIRIE CENTER
Tornado F-scale: EF1
Reported by: NWS Storm Survey

The tornado started three tenths of a mile northeast of the intersection of Rt 33 and E 13th Rd. As the tornado moved off to the southeast, a corn dryer with three 1-ton blocks tipped over in between four full grain bins. Peak winds were estimated at 95 mph, and max width was 50 yards. (Tornado 8 of 15).

Tornado in GRUNDY, ILLINOIS
From 22-JUN-16 20:29:00 to 22-JUN-16 20:36:00 (CST-6)
Location: GORMAN
Tornado F-scale: EF0
Reported by: NWS Storm Survey

Around three tenths of a mile south of the intersection of County Rd 1000 S and S Tynan Rd, a small farm outbuilding collapsed and a large tree had been uprooted.  The tornado moved off to the east-northeast and ended approximately six tenths of a mile southeast of the intersection of County Rd 1000 S and S Tynan Rd.  Peak winds were estimated at 85 mph, and max width was 100 yards. (Tornado 11 of 15).

Tornado in LA SALLE, ILLINOIS
From 22-JUN-16 18:59:00 to 22-JUN-16 19:09:00 (CST-6)
Location: EARLVILLE
Tornado F-scale: EF1
Reported by: Emergency Manager

The tornado started in a field approximately a half mile northeast of Earlville.  As it headed southeast it crossed East 1351st Rd and took out numerous large branches. Approximately at intersection of N 4550th Rd and E 1369th Rd, the tornado intensified as windows were blown out of a home, numerous trees snapped in half, multiple uprooted trees, and was corn flattened. The tornado continued moving southeast, crossing E 14th Rd approaching US Rt. 34 and that is where the winds took down a metal barn.  As the tornado approached E 1550th Rd, 2 metal barns were destroyed with sheet metal embedded in nearby trees. Peak winds were estimated at 110 mph, and max width was 400 yards. (Tornado 3 of 15).

Tornado in LA SALLE, ILLINOIS
From 22-JUN-16 19:02:00 to 22-JUN-16 19:07:00 (CST-6)
Location: EARLVILLE
Tornado F-scale: EF1
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Storm Chaser

The tornado started near the intersection of N 47th Rd and Rt 41 moving south-southwest, as was captured on video by a storm chaser.  Approximately three tenths of a mile southwest of the intersection, the tornado turned off to the southeast.  As it crossed E 1401st Rd, there was a tree snapped and damage to a barn.  Peak winds were estimated at 95 mph, and max width was 250 yards. (Tornado 5 of 15).

Tornado in LA SALLE, ILLINOIS
From 22-JUN-16 19:22:00 to 22-JUN-16 19:27:00 (CST-6)
Location: BAKER
Tornado F-scale: EF1
Property damage: 0.00K
Crop damage: 0.00K
Reported by: NWS Storm Survey

The tornado started approximately three tenths of a mile to the northwest of the intersection of N 43rd Rd and E 21st Rd, and the damage was corn flattened.  As it moved to the east-northeast and neared the intersection of E 2165th Rd and N 4350th Rd, the tornado intensified and there were numerous trees uprooted, a barn picked up and flipped, and a horse shelter destroyed.  Peak winds were estimated at 110 mph, and max width was 250 yards. (Tornado 6 of 15).

Hail in MCHENRY, ILLINOIS
From 22-JUN-16 18:39:00 to 22-JUN-16 18:39:00 (CST-6)
Location: HUNTLEY
Magnitude: 0.75 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Public

Thunderstorm Wind in COOK, ILLINOIS
From 22-JUN-16 20:00:00 to 22-JUN-16 20:00:00 (CST-6)
Location: POSEN
Magnitude: 50.00 EG
Crop damage: 0.00K
Reported by: Public

Tree down on home at 147th and Kedzie.  Time estimated based on radar.

Thunderstorm Wind in COOK, ILLINOIS
From 22-JUN-16 19:35:00 to 22-JUN-16 19:35:00 (CST-6)
Location: CHICAGO
Magnitude: 50.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Department of Highways

Over 30 reports of tree limbs down across the city of Chicago.  Time was estimated with radar.

Thunderstorm Wind in COOK, ILLINOIS
From 22-JUN-16 19:15:00 to 22-JUN-16 19:15:00 (CST-6)
Location: MT PROSPECT
Magnitude: 50.00 EG
Crop damage: 0.00K
Reported by: Trained Spotter

Damage done to a gas station canopy.  The time was estimated from radar.

Thunderstorm Wind in LA SALLE, ILLINOIS
From 22-JUN-16 20:15:00 to 22-JUN-16 20:15:00 (CST-6)
Location: STAVANGER
Magnitude: 50.00 EG
Reported by: Trained Spotter

Tree down blocking N 32nd Street.  Numerous trees down also on the east side of town, as well as corn flattened.

Thunderstorm Wind in KANKAKEE, ILLINOIS
From 22-JUN-16 20:35:00 to 22-JUN-16 20:35:00 (CST-6)
Location: BOURBONNAIS
Magnitude: 55.00 EG
Crop damage: 0.00K
Reported by: NWS Storm Survey

Damage was done to the press box at Ward Field of Olivet Nazarene University.

Thunderstorm Wind in LIVINGSTON, ILLINOIS
From 22-JUN-16 21:15:00 to 22-JUN-16 21:15:00 (CST-6)
Location: PONTIAC
Magnitude: 59.00 MG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: AWOS

Tornado in LIVINGSTON, ILLINOIS
From 22-JUN-16 21:06:00 to 22-JUN-16 21:24:00 (CST-6)
Location: GRAYMONT
Tornado F-scale: EF2
Property damage: 0.00K
Crop damage: 0.00K
Reported by: NWS Storm Survey

The tornado started just under two tenths of a mile north of the intersection of E 2000 N Rd and County Highway 13.  As it moved southeast and crossed N 900 E Rd,  there were numerous trees snapped and the path width was approximately 250 ft.  At a house near E 1900 N Rd, there were other trees snapped.  When the tornado crossed E 1800 N Rd, it strengthened to EF-2 and a barn was totally destroyed, and electrical transmission lines were broken.  As it moved southeast past the intersection of Rt 116 and Interstate 55, a small retail building had the exterior walls collapsed.  At a mobile home park off S. Ladd St, a mobile home was pushed off its foundation and destroyed.  Near the intersection of N 1725 E Rd and E 1550 N Rd, the tornado was 1/4 mile in width and there were 3 snapped power poles and a silo in a field.  Peak winds were estimated at 125 mph, and max width was 440 yards. (Tornado 13 of 15).

Tornado in LEE, ILLINOIS
From 22-JUN-16 18:19:00 to 22-JUN-16 18:35:00 (CST-6)
Location: WEST BROOKLYN
Tornado F-scale: EF1
Reported by: NWS Storm Survey

The tornado started near 787 Meridian Rd and moved northeast crossing Highway 10 (Shaw Rd).  Along the way, a house lost a portion of the roof and there were trees snapped and corn flattened.  After crossing Highway 10 and continuing northeast for another one half mile, the tornado changed direction and then started moving southeast, crossing Highway 10 again. There was a wide swatch of uprooted and snapped trees, and the tornado was confirmed by a storm chaser. Peak winds were estimated at 110 mph, and max width was 300 yards.  (Tornado 1 of 15).

Tornado in LEE, ILLINOIS
From 22-JUN-16 18:31:00 to 22-JUN-16 18:32:00 (CST-6)
Location: WEST BROOKLYN
Tornado F-scale: EF0
Reported by: NWS Storm Survey

This tornado was determined form ground survey and video documentation.  (Tornado 2 of 15).

Tornado in LA SALLE, ILLINOIS
From 22-JUN-16 18:59:00 to 22-JUN-16 19:00:00 (CST-6)
Location: EARLVILLE
Tornado F-scale: EF0
Reported by: Storm Chaser

This tornado was determined from video documentation.  As the tornado crossed Rt. 41, a farmer also reported corn crop damage in different directions on either side of Rt. 41.  Peak winds were estimated at 80 mph, and max width was 75 yards. (Tornado 4 of 15).

Tornado in LIVINGSTON, ILLINOIS
From 22-JUN-16 21:49:00 to 22-JUN-16 21:50:00 (CST-6)
Location: CHATSWORTH
Tornado F-scale: EF0
Property damage: 0.00K
Crop damage: 0.00K
Reported by: NWS Storm Survey

At a residence one tenth of a mile to the east of N 3300 E Rd and E 1000 N Rd, there was a loss of wood or metal roof panels to a barn.  The doors were also blown out.  Peak winds were estimated at 80 mph, and max width was 10 yards. (Tornado 14 of 15).

Tornado in IROQUOIS, ILLINOIS
From 22-JUN-16 22:37:00 to 22-JUN-16 22:41:00 (CST-6)
Location: CISSNA PARK
Tornado F-scale: EF1
Property damage: 0.00K
Crop damage: 0.00K
Reported by: NWS Storm Survey

The tornado started near the intersection of County Rd 700 N and Country Rd 1200 E as seen in corn pattern.  As it moved southeast and approached the north side of Cissna Park, a small barn had a collapse of its roof structure and there were large branches down.  There was damage to the school  grounds on the north side of town, including the dugout of the roof blown off.  One half mile northeast of town on IL-49, a couple of buildings were damaged with trees twisted down.  At a residence off of Country Rd 1300 E, a house lost large sections of its roof structure, but the walls remained standing.  There were also some trees snapped.  As the tornado ended near County Rd 500 N, there were large branches broken and trees uprooted.  Peak winds were estimated at 110 mph, and max width was 440 yards. (Tornado 15 of 15).

Tornado in LA SALLE, ILLINOIS
From 22-JUN-16 19:48:00 to 22-JUN-16 19:53:00 (CST-6)
Location: (8N2) SKYDIVE CHICAGO AIRPORT
Tornado F-scale: EF1
Reported by: NWS Storm Survey

The tornado started approximately three quarters of a mile west of the intersection of N 33rd Rd and Rt. 23.  As it moved southeast, there was damage of tree branches broken and the collapse of the walls of a small barn.  As it continued on, there were numerous areas of corn damage and large branches broken.  The tornado stopped around four tenths of a mile northeast of the intersection of Rt. 71 and I-80.  Peak winds were estimated at 90 mph, and max width was 100 yards. (Tornado 9 of 15).