An upper-level disturbance tracking along a nearly stationary frontal boundary triggered a line of strong to severe thunderstorms across west-central Illinois during the late evening of May 28th.  The storms tracked eastward and gradually weakened as they approached the I-55 corridor by the early morning of May 29th.  Wind gusts of 60-70 mph downed numerous tree branches and power lines as the storms advanced eastward.  In addition, hail up to the size of quarters was reported and localized flash flooding occurred across portions of Knox, Peoria, Tazewell, and Woodford counties.

Hail in TAZEWELL, ILLINOIS
From 28-MAY-19 20:18:00 to 28-MAY-19 20:23:00 (CST-6)
Location: SOUTH PEKIN
Magnitude: 0.75 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Hail in TAZEWELL, ILLINOIS
From 28-MAY-19 20:20:00 to 28-MAY-19 20:25:00 (CST-6)
Location: MORTON
Magnitude: 0.75 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Thunderstorm Wind in TAZEWELL, ILLINOIS
From 28-MAY-19 19:50:00 to 28-MAY-19 19:55:00 (CST-6)
Location: PARKLAND
Magnitude: 52.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Mesonet

Numerous large tree branches were blown down about 6 miles north of Manito.

Thunderstorm Wind in TAZEWELL, ILLINOIS
From 28-MAY-19 20:03:00 to 28-MAY-19 20:08:00 (CST-6)
Location: SHAFERVILLE
Magnitude: 52.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Emergency Manager

A power line was blown down on Mennonite Church Road south of Highway 9.

Thunderstorm Wind in MENARD, ILLINOIS
From 28-MAY-19 20:05:00 to 28-MAY-19 20:10:00 (CST-6)
Location: GREENVIEW
Magnitude: 52.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Large tree branches were blown down and blocked a road in Greenview.

Thunderstorm Wind in TAZEWELL, ILLINOIS
From 28-MAY-19 20:05:00 to 28-MAY-19 20:10:00 (CST-6)
Location: GROVELAND
Magnitude: 61.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Emergency Manager

Eighteen power poles were snapped along Springfield Road between Highway 9 and Allentown Road.

Thunderstorm Wind in LOGAN, ILLINOIS
From 28-MAY-19 20:22:00 to 28-MAY-19 20:27:00 (CST-6)
Location: ELKHART
Magnitude: 52.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Emergency Manager

A large tree was blown over in Elkhart.

Thunderstorm Wind in MCLEAN, ILLINOIS
From 28-MAY-19 21:00:00 to 28-MAY-19 21:05:00 (CST-6)
Location: NORMAL
Magnitude: 52.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Law Enforcement

A large tree was blown down at the intersection of College Avenue and Grove Street, blocking traffic.

Hail in FULTON, ILLINOIS
From 28-MAY-19 19:24:00 to 28-MAY-19 19:29:00 (CST-6)
Location: FAIRVIEW
Magnitude: 1.00 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Emergency Manager

Hail in FULTON, ILLINOIS
From 28-MAY-19 19:32:00 to 28-MAY-19 19:37:00 (CST-6)
Location: CANTON
Magnitude: 1.00 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Mesonet

Thunderstorm Wind in FULTON, ILLINOIS
From 28-MAY-19 19:32:00 to 28-MAY-19 19:37:00 (CST-6)
Location: CANTON
Magnitude: 52.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Mesonet

A large tree branch was snapped.

Thunderstorm Wind in LOGAN, ILLINOIS
From 28-MAY-19 20:25:00 to 28-MAY-19 20:30:00 (CST-6)
Location: LINCOLN
Magnitude: 52.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: NWS Employee

A large tree branch was blown down.

Flash Flood in KNOX, ILLINOIS
From 28-MAY-19 19:45:00 to 29-MAY-19 03:15:00 (CST-6)
Location: RIO
Flood cause: Heavy Rain
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

A line of thunderstorms produced 1.00 to 2.00 inches of rain in less than one hour during the late evening of May 28th. Due to recent heavy rain and an already saturated ground, flash flooding developed rapidly in Knox County. Multiple streets were flooded in Galesburg and numerous rural roads were impassable. The flooding subsided during the early morning hours of May 29th.

Flash Flood in PEORIA, ILLINOIS
From 28-MAY-19 20:30:00 to 29-MAY-19 02:00:00 (CST-6)
Location: ELMORE
Flood cause: Heavy Rain
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Emergency Manager

A line of thunderstorms produced nearly 2.00 inches of rain in less than one hour during the late evening of May 28th. Due to recent heavy rain and an already saturated ground, flash flooding developed rapidly in Peoria County. Multiple streets were flooded in Peoria, Bellevue and Princeton, and numerous rural roads were impassable. The flooding subsided during the early morning hours of May 29th.

Flash Flood in TAZEWELL, ILLINOIS
From 28-MAY-19 21:00:00 to 29-MAY-19 03:00:00 (CST-6)
Location: TRAIL PARK GARDENS
Flood cause: Heavy Rain
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Emergency Manager

A line of thunderstorms produced nearly 2.00 inches of rain in less than one hour during the late evening of May 28th. Due to recent heavy rain and an already saturated ground, flash flooding developed rapidly in Tazewell County. Multiple streets were flooded in Pekin, Washington and East Peoria with up to two feet of standing water. Numerous rural roads were also impassable across much of the county. The flooding subsided during the early morning hours of May 29th.

Flash Flood in MARSHALL, ILLINOIS
From 28-MAY-19 21:30:00 to 29-MAY-19 02:45:00 (CST-6)
Location: HENRY
Flood cause: Heavy Rain
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Law Enforcement

A line of thunderstorms produced 1.00 to 2.00 inches of rain in less than one hour during the late evening of May 28th. Due to recent heavy rain and an already saturated ground, flash flooding developed rapidly in eastern Marshall County. Multiple roads were flooded and impassable from Lacon through Varna to LaRose, including Illinois Route 26, Route 17 and Route 89. The flooding subsided during the early morning hours of May 29th.

Flash Flood in WOODFORD, ILLINOIS
From 28-MAY-19 21:30:00 to 29-MAY-19 02:45:00 (CST-6)
Location: LOW PT
Flood cause: Heavy Rain
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Emergency Manager

A line of thunderstorms produced 1.00 to 2.00 inches of rain in less than one hour during the late evening of May 28th. Due to recent heavy rain and an already saturated ground, flash flooding developed rapidly in northern Woodford County. Multiple roads were impassable, including Illinois Route 26 from northeast of Spring Bay to the Marshall County line. The flooding subsided during the early morning hours of May 29th.

Hail in FULTON, ILLINOIS
From 28-MAY-19 19:22:00 to 28-MAY-19 19:27:00 (CST-6)
Location: CUBA
Magnitude: 1.00 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Emergency Manager

Hail in FULTON, ILLINOIS
From 28-MAY-19 19:24:00 to 28-MAY-19 19:29:00 (CST-6)
Location: CANTON
Magnitude: 1.00 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Emergency Manager