Scattered severe thunderstorms moved across northern Illinois on April 30th producing three tornadoes, large hail, localized wind damage and minor flooding.

Hail in GRUNDY, ILLINOIS
From 30-APR-22 15:03:00 to 30-APR-22 15:04:00 (CST-6)
Location: MAZON
Magnitude: 1.00 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Social Media

Tornado in DU PAGE, ILLINOIS
From 30-APR-22 15:44:00 to 30-APR-22 15:47:00 (CST-6)
Location: WESTMONT
Tornado F-scale: EF0
Property damage: 0.00K
Crop damage: 0.00K
Reported by: NWS Storm Survey

A tornado with peak winds to 75 mph touched down just west of the Hilton Hotel and Willow Crest Golf Club, where an outbuilding had its roof removed.  The tornado moved northeast, crossing Route 83 near Route 34 and then moved across Central Park where a light post was blown down.  The tornado lifted just east of Jorie Boulevard.  Tree limbs were snapped and a few trees were uprooted along the path of this tornado.

Thunderstorm Wind in WINNEBAGO, ILLINOIS
From 30-APR-22 16:25:00 to 30-APR-22 16:27:00 (CST-6)
Location: ROCKFORD
Magnitude: 70.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: NWS Storm Survey

After reviewing drone footage and radar data, it was determined that a narrow swath of straight line winds between 70 and 80 mph occurred near the intersection of 9th Street and Broadway Street southeast of downtown Rockford.  These winds caused the loss of a roof to a building south of Broadway which subsequently resulted in the collapse of the west and south facing walls.  Roofing material from this building was blown in a north and northeast direction.  Several utility poles and trees were snapped along 9th Street, with additional minor roof damage noted in the vicinity.  The damage orientation was consistent with a divergent area of southerly straight line winds.

Flood in DU PAGE, ILLINOIS
From 30-APR-22 15:30:00 to 30-APR-22 17:30:00 (CST-6)
Location: BUTTERFIELD
Flood cause: Heavy Rain
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Law Enforcement

A photo showed flood waters several inches deep on Lambert Road near McCreey Avenue.

Hail in BOONE, ILLINOIS
From 30-APR-22 16:59:00 to 30-APR-22 17:01:00 (CST-6)
Location: IRENE
Magnitude: 1.50 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Fire Department/Rescue

Quarter to ping pong ball size hail was reported.

Hail in LIVINGSTON, ILLINOIS
From 30-APR-22 18:25:00 to 30-APR-22 18:26:00 (CST-6)
Location: CHATSWORTH
Magnitude: 1.00 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: COOP Observer

Hail ranged from pea to quarter size.

Thunderstorm Wind in DU PAGE, ILLINOIS
From 30-APR-22 18:13:00 to 30-APR-22 18:13:00 (CST-6)
Location: WEST CHICAGO
Magnitude: 50.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Public

Tree limbs 3 inches in diameter were blown down.

Flood in DU PAGE, ILLINOIS
From 30-APR-22 15:30:00 to 30-APR-22 17:30:00 (CST-6)
Location: BUTTERFIELD
Flood cause: Heavy Rain
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Law Enforcement

Minor flooding was reported near Roosevelt Road and Nicoll Way.

Flood in COOK, ILLINOIS
From 30-APR-22 16:00:00 to 30-APR-22 17:30:00 (CST-6)
Location: BROADVIEW
Flood cause: Heavy Rain
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Broadcast Media

Video showed several inches of standing water on Lexington Street, near 25th Avenue.

Hail in WINNEBAGO, ILLINOIS
From 30-APR-22 16:12:00 to 30-APR-22 16:13:00 (CST-6)
Location: (RFD) ROCKFORD AIRPORT
Magnitude: 1.00 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Public

Tornado in BOONE, ILLINOIS
From 30-APR-22 16:54:00 to 30-APR-22 16:55:00 (CST-6)
Location: CANDLEWICK LAKE
Tornado F-scale: EF0
Property damage: 0.00K
Crop damage: 0.00K
Reported by: NWS Storm Survey

A tornado with peak winds of 80 mph touched down just west of Candlewick Lake, near the intersection of Candlewick Drive and Briar Cliff Street.  Several softwood trees were uprooted and snapped at the start of the path and laid in a convergent pattern.  The tornado continued northeast across Candlewick Lake, where several floating docks were thrown across the lake.  The tornado lifted as it reached the eastern side of the lake.

Tornado in BOONE, ILLINOIS
From 30-APR-22 17:07:00 to 30-APR-22 17:08:00 (CST-6)
Location: BLAINE
Tornado F-scale: EFU
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Public

Based on two photos, a brief tornado touched down in a field just northeast of the intersection of Coon Trail and Capron Roads.  No damage was reported.

Hail in WINNEBAGO, ILLINOIS
From 30-APR-22 16:17:00 to 30-APR-22 16:19:00 (CST-6)
Location: (RFD) ROCKFORD AIRPORT
Magnitude: 1.50 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Public

Thunderstorm Wind in WILL, ILLINOIS
From 30-APR-22 15:19:00 to 30-APR-22 15:21:00 (CST-6)
Location: PLAINFIELD
Magnitude: 65.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: NWS Employee

A large area of straight line wind damage occurred near 135th Street, west of Route 59.  Several tree limbs 6 to 10 inches in diameter were blown down near the intersection of 135th Street and Meadow Lane.  A large section of siding was ripped off the south side of a house on Meadow Lane, just south of 135th Street.  Two large trees were blown down on 135th Street, about a third of a mile west of Meadow Lane.  A sod farm irrigation pivot was blown into fences and yards, damaging the fences along the west side of Meadow Lane.  A private weather station measured a gust to 65 mph at this location.  Between Meadow Lane and Van Dyke Road, along 135th Street, multiple tree limbs were blown down; an 8 inch diameter pine tree was snapped halfway up the trunk; fence panels were damaged and trampolines were flipped.  The damage was consistent with wind speeds estimated to 75 mph.

Thunderstorm Wind in COOK, ILLINOIS
From 30-APR-22 16:15:00 to 30-APR-22 16:15:00 (CST-6)
Location: NORTH RIVERSIDE
Magnitude: 60.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Public

A photo showed a large tree that was uprooted.

Hail in OGLE, ILLINOIS
From 30-APR-22 16:30:00 to 30-APR-22 16:31:00 (CST-6)
Location: DAVIS JUNCTION
Magnitude: 1.00 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Public

Hail in LA SALLE, ILLINOIS
From 30-APR-22 16:56:00 to 30-APR-22 16:57:00 (CST-6)
Location: GRAND RIDGE
Magnitude: 0.88 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Social Media

Hail in BOONE, ILLINOIS
From 30-APR-22 17:14:00 to 30-APR-22 17:15:00 (CST-6)
Location: BELVIDERE
Magnitude: 1.00 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Public

Hail in FORD, ILLINOIS
From 30-APR-22 18:33:00 to 30-APR-22 18:35:00 (CST-6)
Location: PIPER CITY
Magnitude: 1.00 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Social Media

A photo shared on social media showed nickel to quarter size hail.

Flood in BOONE, ILLINOIS
From 30-APR-22 17:30:00 to 30-APR-22 20:00:00 (CST-6)
Location: POPLAR GROVE
Flood cause: Heavy Rain
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Standing water 2 to 3 inches deep was reported over Route 173 near Poplar Grove.