Severe thunderstorms developed ahead of a strong cold front during the afternoon hours of the 30th.  These storms produced damaging wind gusts and large hail, as well as few tornadoes.  The heavy rains produced by many of the storms produced flooding in some areas.

Hail in SANGAMON, ILLINOIS
From 30-MAY-08 17:33:00 to 30-MAY-08 17:33:00 (CST-6)
Location: MECHANICSBURG
Magnitude: 1.75 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Emergency Manager

Hail in CHAMPAIGN, ILLINOIS
From 30-MAY-08 17:36:00 to 30-MAY-08 17:36:00 (CST-6)
Location: SADORUS
Magnitude: 2.00 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Public

Hail in CHRISTIAN, ILLINOIS
From 30-MAY-08 17:42:00 to 30-MAY-08 17:42:00 (CST-6)
Location: MT AUBURN
Magnitude: 0.75 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Law Enforcement

Hail in MACON, ILLINOIS
From 30-MAY-08 18:19:00 to 30-MAY-08 18:19:00 (CST-6)
Location: BOODY
Magnitude: 0.75 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Mesonet

Hail in SANGAMON, ILLINOIS
From 30-MAY-08 18:20:00 to 30-MAY-08 18:20:00 (CST-6)
Location: PROUTY
Magnitude: 3.00 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Emergency Manager

Hail in MORGAN, ILLINOIS
From 30-MAY-08 18:28:00 to 30-MAY-08 18:28:00 (CST-6)
Location: WAVERLY
Magnitude: 0.75 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Law Enforcement

Hail in SANGAMON, ILLINOIS
From 30-MAY-08 18:34:00 to 30-MAY-08 18:34:00 (CST-6)
Location: PAWNEE
Magnitude: 1.75 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Fire Department/Rescue

Hail in SANGAMON, ILLINOIS
From 30-MAY-08 18:36:00 to 30-MAY-08 18:38:00 (CST-6)
Location: CHATHAM
Magnitude: 1.75 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Emergency Manager

Thunderstorm Wind in CHAMPAIGN, ILLINOIS
From 30-MAY-08 17:34:00 to 30-MAY-08 17:34:00 (CST-6)
Location: PHILO
Magnitude: 61.00 EG
Property damage: 15.00K
Crop damage: 0.00K
Reported by: Emergency Manager

Several small trees were blown down and one power pole was snapped off.

Thunderstorm Wind in CHAMPAIGN, ILLINOIS
From 30-MAY-08 17:34:00 to 30-MAY-08 17:36:00 (CST-6)
Location: TOLONO
Magnitude: 61.00 EG
Property damage: 40.00K
Crop damage: 0.00K
Reported by: Emergency Manager

Several trees and power lines were blown down.  Also, a gas station awning was damaged in Tolono and an outbuilding was damaged in Sidney.

Thunderstorm Wind in COLES, ILLINOIS
From 30-MAY-08 20:13:00 to 30-MAY-08 20:13:00 (CST-6)
Location: OAKLAND
Magnitude: 61.00 EG
Property damage: 30.00K
Crop damage: 0.00K
Reported by: Emergency Manager

Numerous trees and tree limbs were blown down.  The roof was blown off an outbuilding.

Thunderstorm Wind in EDGAR, ILLINOIS
From 30-MAY-08 20:45:00 to 30-MAY-08 20:45:00 (CST-6)
Location: PARIS
Magnitude: 61.00 EG
Property damage: 50.00K
Crop damage: 0.00K
Reported by: Law Enforcement

Numerous trees and power poles were blown down.  Also, a barn and a house sustained damage and a semi trailer was overturned.

Thunderstorm Wind in MACON, ILLINOIS
From 30-MAY-08 18:19:00 to 30-MAY-08 18:19:00 (CST-6)
Location: BOODY
Magnitude: 61.00 EG
Property damage: 15.00K
Crop damage: 0.00K
Reported by: Mesonet

A tree was uprooted and numerous large tree limbs were blown down.

Hail in SANGAMON, ILLINOIS
From 30-MAY-08 18:40:00 to 30-MAY-08 18:40:00 (CST-6)
Location: DIVERNON
Magnitude: 2.50 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Hail in SANGAMON, ILLINOIS
From 30-MAY-08 18:45:00 to 30-MAY-08 18:45:00 (CST-6)
Location: CHATHAM
Magnitude: 1.50 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Emergency Manager

Thunderstorm Wind in CHRISTIAN, ILLINOIS
From 30-MAY-08 19:15:00 to 30-MAY-08 19:15:00 (CST-6)
Location: TAYLORVILLE
Magnitude: 52.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Mesonet

Tornado in CHRISTIAN, ILLINOIS
From 30-MAY-08 19:20:00 to 30-MAY-08 19:20:00 (CST-6)
Location: TAYLORVILLE
Tornado F-scale: EF0
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Emergency Manager

A tornado briefly touched down in a field. No damage was reported.

Tornado in SHELBY, ILLINOIS
From 30-MAY-08 19:33:00 to 30-MAY-08 19:34:00 (CST-6)
Location: WESTERVELT
Tornado F-scale: EF0
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Emergency Manager

A tornado briefly touched down in rural Shelby County. No damage was reported.

Thunderstorm Wind in LOGAN, ILLINOIS
From 30-MAY-08 16:00:00 to 30-MAY-08 16:00:00 (CST-6)
Location: LINCOLN
Magnitude: 61.00 EG
Property damage: 25.00K
Crop damage: 0.00K
Reported by: Amateur Radio

Numerous large tree limbs and power lines were blown down.

Thunderstorm Wind in MORGAN, ILLINOIS
From 30-MAY-08 16:23:00 to 30-MAY-08 16:26:00 (CST-6)
Location: CHAPIN
Magnitude: 56.00 EG
Property damage: 10.00K
Crop damage: 0.00K
Reported by: Emergency Manager

Several large tree limbs were blown down.

Flash Flood in TAZEWELL, ILLINOIS
From 30-MAY-08 14:10:00 to 30-MAY-08 18:00:00 (CST-6)
Location: MORTON
Flood cause: Heavy Rain
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Emergency Manager

Heavy rains caused flooding across many roads in Tazewell County.

Flash Flood in CHRISTIAN, ILLINOIS
From 30-MAY-08 20:13:00 to 30-MAY-08 22:00:00 (CST-6)
Location: TAYLORVILLE
Flood cause: Heavy Rain
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Emergency Manager

Heavy rains caused flooding across many roads in Taylorville.

Thunderstorm Wind in VERMILION, ILLINOIS
From 30-MAY-08 15:32:00 to 30-MAY-08 15:34:00 (CST-6)
Location: HOOPESTON
Magnitude: 61.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Emergency Manager

Hail in SANGAMON, ILLINOIS
From 30-MAY-08 16:35:00 to 30-MAY-08 16:35:00 (CST-6)
Location: BERLIN
Magnitude: 1.25 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Mesonet

Thunderstorm Wind in SANGAMON, ILLINOIS
From 30-MAY-08 17:06:00 to 30-MAY-08 17:06:00 (CST-6)
Location: MILDRED
Magnitude: 59.00 MG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: ASOS

Hail in CHAMPAIGN, ILLINOIS
From 30-MAY-08 17:09:00 to 30-MAY-08 17:09:00 (CST-6)
Location: SADORUS
Magnitude: 2.75 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Emergency Manager

Hail in CHAMPAIGN, ILLINOIS
From 30-MAY-08 17:15:00 to 30-MAY-08 17:15:00 (CST-6)
Location: PHILO
Magnitude: 4.25 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Emergency Manager

Hail in SANGAMON, ILLINOIS
From 30-MAY-08 17:25:00 to 30-MAY-08 17:28:00 (CST-6)
Location: SPRINGFIELD
Magnitude: 1.75 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Law Enforcement

Thunderstorm Wind in SANGAMON, ILLINOIS
From 30-MAY-08 17:29:00 to 30-MAY-08 17:29:00 (CST-6)
Location: CANTRALL
Magnitude: 52.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Hail in CHAMPAIGN, ILLINOIS
From 30-MAY-08 17:30:00 to 30-MAY-08 17:30:00 (CST-6)
Location: PHILO
Magnitude: 2.50 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: COOP Observer

Tornado in SANGAMON, ILLINOIS
From 30-MAY-08 18:23:00 to 30-MAY-08 18:25:00 (CST-6)
Location: LOWDER
Tornado F-scale: EF1
Property damage: 63.00K
Crop damage: 0.00K
Reported by: NWS Storm Survey

The tornado crossed into Sangamon County from Morgan County.  The tornado damaged a pole barn, house and several trees, and destroyed a garage and another pole barn, and snapped several trees and power poles.  The tornado traveled for another mile across open farmland before dissipating 8 miles west-southwest of Auburn around 7:25 pm.

Tornado in MORGAN, ILLINOIS
From 30-MAY-08 18:17:00 to 30-MAY-08 18:23:00 (CST-6)
Location: WAVERLY
Tornado F-scale: EF1
Property damage: 129.00K
Crop damage: 0.00K
Reported by: NWS Storm Survey

The tornado touched down in an open field 3 miles west-southwest of Waverly at 7:17 pm CDT.  During the early part of the tornado track, the storm snapped trees along a 1.5 mile path, before producing minor damage to the roofs of a house and garage.  The tornado then increased in width and intensity around 7:20 pm.  It damaged two houses and a pole barn, and destroyed a garage, shed, pole barn, and two grain bins.  The tornado crossed Illinois route 111 about a mile south of Waverly, and continued southeast across 1.5 miles of open farm land, before crossing into Sangamon County around 7:23 pm.

Hail in SANGAMON, ILLINOIS
From 30-MAY-08 18:16:00 to 30-MAY-08 18:16:00 (CST-6)
Location: NEW BERLIN
Magnitude: 0.75 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Law Enforcement