Strong thunderstorms developed along an advancing warm front between 2 AM and 9 AM on May 25th.  Some of the storms became severe, producing scattered wind damage from Morgan County northeastward to Tazewell County.  Other damage was noted across Champaign, Vermilion, and Douglas counties.  In addition, two brief tornadoes touched down in eastern Macon County.

Hail in PEORIA, ILLINOIS
From 25-MAY-11 05:10:00 to 25-MAY-11 05:11:00 (CST-6)
Location: BARTONVILLE
Magnitude: 0.75 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Emergency Manager

Thunderstorm Wind in VERMILION, ILLINOIS
From 25-MAY-11 07:36:00 to 25-MAY-11 07:41:00 (CST-6)
Location: RANKIN
Magnitude: 52.00 EG
Property damage: 75.00K
Crop damage: 0.00K
Reported by: Emergency Manager

Numerous trees and powerlines were blown down in Rankin.

Thunderstorm Wind in VERMILION, ILLINOIS
From 25-MAY-11 07:40:00 to 25-MAY-11 07:45:00 (CST-6)
Location: FITHIAN
Magnitude: 52.00 EG
Property damage: 20.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Several trees were blown down and a house lost part of its siding 1 mile west of Fithian.

Thunderstorm Wind in VERMILION, ILLINOIS
From 25-MAY-11 07:57:00 to 25-MAY-11 08:02:00 (CST-6)
Location: DANVILLE
Magnitude: 52.00 EG
Property damage: 40.00K
Crop damage: 0.00K
Reported by: Emergency Manager

Several trees and powerlines were blown down near Danville.

Thunderstorm Wind in VERMILION, ILLINOIS
From 25-MAY-11 07:58:00 to 25-MAY-11 08:03:00 (CST-6)
Location: DANVILLE
Magnitude: 52.00 EG
Property damage: 40.00K
Crop damage: 0.00K
Reported by: Emergency Manager

Numerous powerlines were blown down on the east side of Danville.

Thunderstorm Wind in MORGAN, ILLINOIS
From 25-MAY-11 04:00:00 to 25-MAY-11 04:05:00 (CST-6)
Location: JACKSONVILLE
Magnitude: 52.00 EG
Property damage: 15.00K
Crop damage: 0.00K
Reported by: Mesonet

Several large tree limbs were blown down in Jacksonville.

Thunderstorm Wind in MORGAN, ILLINOIS
From 25-MAY-11 04:00:00 to 25-MAY-11 04:05:00 (CST-6)
Location: NORTONVILLE
Magnitude: 52.00 EG
Property damage: 18.00K
Crop damage: 0.00K
Reported by: Public

Several large tree limbs were blown down causing roof damage to a barn.  In addition, a TV antenna was toppled.

Thunderstorm Wind in MORGAN, ILLINOIS
From 25-MAY-11 04:15:00 to 25-MAY-11 04:20:00 (CST-6)
Location: JACKSONVILLE
Magnitude: 52.00 EG
Property damage: 10.00K
Crop damage: 0.00K
Reported by: Emergency Manager

The tops of several 8 to 10-inch diameter trees were snapped off near 67 and Old 36 just west of Jacksonville.

Thunderstorm Wind in CASS, ILLINOIS
From 25-MAY-11 04:30:00 to 25-MAY-11 04:35:00 (CST-6)
Location: VIRGINIA
Magnitude: 52.00 EG
Property damage: 20.00K
Crop damage: 0.00K
Reported by: COOP Observer

Several large tree limbs and a HAM radio tower were blown down in Virginia.

Thunderstorm Wind in CASS, ILLINOIS
From 25-MAY-11 04:30:00 to 25-MAY-11 04:35:00 (CST-6)
Location: VIRGINIA
Magnitude: 52.00 EG
Property damage: 20.00K
Crop damage: 0.00K
Reported by: Law Enforcement

A shed was blown down 1 mile east of Virginia.

Thunderstorm Wind in MASON, ILLINOIS
From 25-MAY-11 04:30:00 to 25-MAY-11 04:35:00 (CST-6)
Location: KILBOURNE
Magnitude: 52.00 EG
Property damage: 20.00K
Crop damage: 0.00K
Reported by: Emergency Manager

Several trees were uprooted and a few powerlines were knocked down in Kilbourne.

Thunderstorm Wind in SANGAMON, ILLINOIS
From 25-MAY-11 04:41:00 to 25-MAY-11 04:46:00 (CST-6)
Location: AUBURN
Magnitude: 61.00 EG
Property damage: 60.00K
Crop damage: 0.00K
Reported by: Emergency Manager

Several power poles were blown down along Route 104 between Auburn and I-55.

Thunderstorm Wind in SANGAMON, ILLINOIS
From 25-MAY-11 05:03:00 to 25-MAY-11 05:08:00 (CST-6)
Location: SPRINGFIELD
Magnitude: 52.00 EG
Property damage: 12.00K
Crop damage: 0.00K
Reported by: Emergency Manager

Several large tree limbs were blown down.

Thunderstorm Wind in TAZEWELL, ILLINOIS
From 25-MAY-11 05:15:00 to 25-MAY-11 05:20:00 (CST-6)
Location: DELAVAN
Magnitude: 52.00 EG
Property damage: 35.00K
Crop damage: 0.00K
Reported by: Emergency Manager

Windows were broken at a house and a metal shed was blown onto a road about 1 mile east of Delavan.

Thunderstorm Wind in TAZEWELL, ILLINOIS
From 25-MAY-11 05:15:00 to 25-MAY-11 05:20:00 (CST-6)
Location: DELAVAN
Magnitude: 52.00 EG
Property damage: 60.00K
Crop damage: 0.00K
Reported by: Mesonet

Part of the roof was blown off the high school.  Power was knocked out to the south side of Delavan.

Tornado in MACON, ILLINOIS
From 25-MAY-11 06:35:00 to 25-MAY-11 06:37:00 (CST-6)
Location: SANGAMON
Tornado F-scale: EF1
Property damage: 165.00K
Crop damage: 0.00K
Reported by: Emergency Manager

A tornado touched down in eastern Macon County about 6 miles east-northeast of Decatur at 7:35 AM CDT.  The tornado travelled 1 mile to the northeast, damaging grain bins and outbuildings before lifting at 7:37 AM CDT.

Lightning in MARSHALL, ILLINOIS
From 25-MAY-11 06:15:00 to 25-MAY-11 06:15:00 (CST-6)
Location: SARATOGA CENTER
Property damage: 300.00K
Crop damage: 0.00K
Reported by: Newspaper

A thunderstorm shortly after daybreak created a lightning strike which started a house fire in rural western Marshall County. The house and its contents were a total loss. There were no injuries reported.

Tornado in MACON, ILLINOIS
From 25-MAY-11 06:39:00 to 25-MAY-11 06:42:00 (CST-6)
Location: OAKLEY
Tornado F-scale: EF1
Property damage: 100.00K
Crop damage: 0.00K
Reported by: Emergency Manager

A tornado touched down in eastern Macon County about 1.7 miles east of Oakley at 7:39 AM CDT.  The tornado travelled 1.5 miles to the northeast, damaging grain bins and outbuildings before lifting at 7:42 AM CDT.

Thunderstorm Wind in PIATT, ILLINOIS
From 25-MAY-11 06:40:00 to 25-MAY-11 06:45:00 (CST-6)
Location: AMENIA
Magnitude: 70.00 EG
Property damage: 125.00K
Crop damage: 0.00K
Reported by: COOP Observer

Several farm outbuildings were destroyed.

Thunderstorm Wind in DOUGLAS, ILLINOIS
From 25-MAY-11 07:00:00 to 25-MAY-11 07:05:00 (CST-6)
Location: TUSCOLA ARPT
Magnitude: 52.00 EG
Property damage: 3.00K
Crop damage: 0.00K
Reported by: Emergency Manager

A tree was blown down onto the railroad tracks 1 mile south of Tuscola.

Thunderstorm Wind in CHAMPAIGN, ILLINOIS
From 25-MAY-11 07:08:00 to 25-MAY-11 07:13:00 (CST-6)
Location: SADORUS
Magnitude: 52.00 EG
Property damage: 12.00K
Crop damage: 0.00K
Reported by: Emergency Manager

Trees were blown down in Sadorus.

Thunderstorm Wind in CHAMPAIGN, ILLINOIS
From 25-MAY-11 07:10:00 to 25-MAY-11 07:15:00 (CST-6)
Location: PESOTUM
Magnitude: 52.00 EG
Property damage: 15.00K
Crop damage: 0.00K
Reported by: Emergency Manager

A semi truck was blown over on I-57 near mile marker 220.  One person was injured.

Thunderstorm Wind in CHAMPAIGN, ILLINOIS
From 25-MAY-11 07:10:00 to 25-MAY-11 07:15:00 (CST-6)
Location: PESOTUM
Magnitude: 52.00 EG
Property damage: 15.00K
Crop damage: 0.00K
Reported by: Emergency Manager

The roof of an old barn was blown off in Pesotum.

Thunderstorm Wind in CHAMPAIGN, ILLINOIS
From 25-MAY-11 07:15:00 to 25-MAY-11 07:20:00 (CST-6)
Location: URBANA
Magnitude: 52.00 EG
Property damage: 90.00K
Crop damage: 0.00K
Reported by: Emergency Manager

Several powerlines and power poles were blown down in Urbana.

Thunderstorm Wind in CHAMPAIGN, ILLINOIS
From 25-MAY-11 07:17:00 to 25-MAY-11 07:22:00 (CST-6)
Location: URBANA
Magnitude: 52.00 EG
Property damage: 30.00K
Crop damage: 0.00K
Reported by: Emergency Manager

Several powerlines were blown down.

Thunderstorm Wind in DOUGLAS, ILLINOIS
From 25-MAY-11 07:20:00 to 25-MAY-11 07:25:00 (CST-6)
Location: NEWMAN
Magnitude: 52.00 EG
Property damage: 75.00K
Crop damage: 0.00K
Reported by: Emergency Manager

Seven power poles were knocked down.

Thunderstorm Wind in CHAMPAIGN, ILLINOIS
From 25-MAY-11 07:29:00 to 25-MAY-11 07:34:00 (CST-6)
Location: OGDEN
Magnitude: 52.00 EG
Property damage: 30.00K
Crop damage: 0.00K
Reported by: Amateur Radio

Two semi trucks were blown over on I-74 between mile markers 194 and 195.