A low pressure system over Minnesota pushed a cold front through eastern Iowa and northwest Illinois during the afternoon and night of May 22, sparking some showers and thunderstorms across the region. Some of the storms were severe, producing large hail, damaging winds, and a few tornadoes.

Thunderstorm Wind in STEPHENSON, ILLINOIS
From 22-MAY-11 17:40:00 to 22-MAY-11 17:40:00 (CST-6)
Location: RIDOTT
Magnitude: 61.00 EG
Property damage: 25.00K
Crop damage: 0.00K
Reported by: Law Enforcement

Wind gusts estimated to be 70 mph snapped some trees in half, blew down some power poles, and damaged a cattle barn and a pole barn near the intersection of Highway 20 and Farwell Bridge Rd about 2 miles east of Ridott, IL around 640 pm CDT May 22.

Hail in HENRY, ILLINOIS
From 22-MAY-11 18:05:00 to 22-MAY-11 18:05:00 (CST-6)
Location: GALVA
Magnitude: 1.00 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Emergency Manager

Quarter sized hail fell at the cemetery just south of Galva, IL at 705 pm CDT May 22.

Hail in HENRY, ILLINOIS
From 22-MAY-11 18:08:00 to 22-MAY-11 18:08:00 (CST-6)
Location: GALVA
Magnitude: 1.00 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Quarter sized hail fell at 3 miles east of Galva, IL at 708 pm CDT May 22.

Hail in HENRY, ILLINOIS
From 22-MAY-11 18:21:00 to 22-MAY-11 18:21:00 (CST-6)
Location: KEWANEE
Magnitude: 1.75 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Emergency Manager

Golf ball sized hail fell in Kewanee, IL at 721 pm CDT May 22.

Hail in WARREN, ILLINOIS
From 22-MAY-11 18:40:00 to 22-MAY-11 18:40:00 (CST-6)
Location: CAMERON
Magnitude: 1.75 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Golf ball sized hail fell 2 miles southeast of Cameron, IL at 740 pm CDT May 22.

Thunderstorm Wind in BUREAU, ILLINOIS
From 22-MAY-11 19:04:00 to 22-MAY-11 19:04:00 (CST-6)
Location: PRINCETON
Magnitude: 61.00 EG
Property damage: 5.00K
Crop damage: 0.00K
Reported by: Law Enforcement

Wind gusts estimated to be 70 mph blew a door 50 to 60 yards into a house and blew down a small shed about 2 miles south of Princeton, IL around 804 pm CDT May 22.

Thunderstorm Wind in BUREAU, ILLINOIS
From 22-MAY-11 19:04:00 to 22-MAY-11 19:04:00 (CST-6)
Location: PRINCETON PIPER ARPT
Magnitude: 61.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Wind gusts estimated to be 70 mph blew down a tree across a road 2 miles southeast of Princeton, IL around 804 pm CDT May 22.

Thunderstorm Wind in BUREAU, ILLINOIS
From 22-MAY-11 19:34:00 to 22-MAY-11 19:34:00 (CST-6)
Location: CHERRY
Magnitude: 61.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Wind gusts estimated to be 60 to 70 mph were observed 2 miles south of Arlington, IL around 834 pm CDT May 22.

Thunderstorm Wind in BUREAU, ILLINOIS
From 22-MAY-11 19:30:00 to 22-MAY-11 19:30:00 (CST-6)
Location: LA MOILLE
Magnitude: 61.00 EG
Property damage: 10.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Wind gusts estimated to be 70 mph destroyed a small barn about 1 mile south of La Moille, IL around 830 pm CDT May 22.

Thunderstorm Wind in WHITESIDE, ILLINOIS
From 22-MAY-11 17:00:00 to 22-MAY-11 17:00:00 (CST-6)
Location: UNIONVILLE
Magnitude: 61.00 EG
Property damage: 100.00K
Crop damage: 0.00K
Reported by: Newspaper

Wind gusts estimated to be 70 mph blew a new machine shed over at a farm on Creamery Rd about 3 miles southwest of Morrison, IL around 6 pm CDT May 22.  The doors of the shed had yet to be attached.  The shed fell onto a tractor and semi-truck that were inside.

Hail in HENRY, ILLINOIS
From 22-MAY-11 18:18:00 to 22-MAY-11 18:18:00 (CST-6)
Location: KEWANEE
Magnitude: 1.00 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Quarter sized hail fell 1 mile south southwest of Kewanee, IL at 718 pm CDT May 22.

Hail in WHITESIDE, ILLINOIS
From 22-MAY-11 15:42:00 to 22-MAY-11 15:42:00 (CST-6)
Location: ROCK FALLS
Magnitude: 1.00 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Public

Quarter sized hail fell in Rock Falls, IL at 442 pm CDT May 22.

Hail in WHITESIDE, ILLINOIS
From 22-MAY-11 15:48:00 to 22-MAY-11 15:48:00 (CST-6)
Location: COMO
Magnitude: 0.75 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Hail in HENRY, ILLINOIS
From 22-MAY-11 16:47:00 to 22-MAY-11 16:47:00 (CST-6)
Location: CAMBRIDGE
Magnitude: 1.00 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Quarter sized hail fell in Cambridge, IL at 547 pm CDT May 22.

Hail in HENRY, ILLINOIS
From 22-MAY-11 16:48:00 to 22-MAY-11 16:48:00 (CST-6)
Location: GALVA
Magnitude: 1.75 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Emergency Manager

Golf ball sized hail fell in Galva, IL at 548 pm CDT May 22.

Hail in HENRY, ILLINOIS
From 22-MAY-11 16:52:00 to 22-MAY-11 16:52:00 (CST-6)
Location: CAMBRIDGE
Magnitude: 1.00 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Quarter sized hail fell in Cambridge, IL around 552 pm CDT May 22.

Hail in HENRY, ILLINOIS
From 22-MAY-11 16:53:00 to 22-MAY-11 16:53:00 (CST-6)
Location: KEWANEE
Magnitude: 0.75 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Amateur Radio

Thunderstorm Wind in CARROLL, ILLINOIS
From 22-MAY-11 16:54:00 to 22-MAY-11 16:54:00 (CST-6)
Location: LANARK
Magnitude: 52.00 MG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Wind gusts measured to be 60 mph were recorded about 5 miles northwest of Lanark, IL at 554 pm CDT May 22.

Thunderstorm Wind in CARROLL, ILLINOIS
From 22-MAY-11 17:13:00 to 22-MAY-11 17:13:00 (CST-6)
Location: MILLEDGEVILLE
Magnitude: 52.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Wind gusts estimated to be 60 mph blew down some branches just east of Milledgeville, IL at 613 pm CDT May 22.

Hail in MCDONOUGH, ILLINOIS
From 22-MAY-11 17:25:00 to 22-MAY-11 17:25:00 (CST-6)
Location: ARGYLE LAKE SP
Magnitude: 0.75 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Thunderstorm Wind in STEPHENSON, ILLINOIS
From 22-MAY-11 17:32:00 to 22-MAY-11 17:32:00 (CST-6)
Location: FREEPORT
Magnitude: 52.00 MG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Emergency Manager

Wind gusts measured to be 60 mph were recorded in Freeport, IL at 632 pm CDT May 22.

Thunderstorm Wind in STEPHENSON, ILLINOIS
From 22-MAY-11 17:35:00 to 22-MAY-11 17:35:00 (CST-6)
Location: FREEPORT ALBERTUS AR
Magnitude: 51.00 MG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: AWOS

A wind gust measured to be 59 mph was recorded by the AWOS at the Freeport, IL Airport at 635 pm CDT May 22.

Thunderstorm Wind in STEPHENSON, ILLINOIS
From 22-MAY-11 17:36:00 to 22-MAY-11 17:36:00 (CST-6)
Location: GERMAN VLY
Magnitude: 56.00 MG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Emergency Manager

A wind gust measured to be 65 mph was recorded in German Valley, IL at 636 pm CDT May 22.

Thunderstorm Wind in CARROLL, ILLINOIS
From 22-MAY-11 17:38:00 to 22-MAY-11 17:38:00 (CST-6)
Location: MILLEDGEVILLE
Magnitude: 52.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Fire Department/Rescue

Wind gusts estimated to be 60 mph blew down some 8 to 10 inch diameter tree limbs in Milledgeville, IL at 638 pm CDT May 22.

Hail in HENRY, ILLINOIS
From 22-MAY-11 17:40:00 to 22-MAY-11 17:40:00 (CST-6)
Location: BISHOP HILL
Magnitude: 0.75 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Emergency Manager

Hail in HENRY, ILLINOIS
From 22-MAY-11 17:45:00 to 22-MAY-11 17:45:00 (CST-6)
Location: WOODHULL
Magnitude: 0.88 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: COOP Observer