An upper level disturbance moved through the region during the morning and early afternoon hours of June 18 sparking some showers and thunderstorms across the area.  Some severe storms produced damaging winds and large hail.  Heavy rains were also common with the storms which resulted in some flash flooding.

Thunderstorm Wind in ROCK ISLAND, ILLINOIS
From 18-JUN-09 11:31:00 to 18-JUN-09 11:31:00 (CST-6)
Location: COAL VLY
Magnitude: 56.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

A wind gust estimated to be 65 mph blew a semi trailer outside of its traffic lane about 2 miles north of Coal Valley, IL around 1231 pm June 18.

Hail in ROCK ISLAND, ILLINOIS
From 18-JUN-09 11:32:00 to 18-JUN-09 11:32:00 (CST-6)
Location: FRUITLAND
Magnitude: 1.50 
Crop damage: 0.00K
Reported by: Trained Spotter

One and a half inch diameter hail fell at the Wal-Mart in Moline, IL around 1232 pm June 18.

Thunderstorm Wind in MCDONOUGH, ILLINOIS
From 18-JUN-09 03:25:00 to 18-JUN-09 03:25:00 (CST-6)
Location: MACOMB MUNI ARPT
Magnitude: 50.00 MG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: AWOS

A wind gust of 58 mph was measured by the Macomb, IL AWOS at 425 am June 18.

Thunderstorm Wind in MCDONOUGH, ILLINOIS
From 18-JUN-09 03:39:00 to 18-JUN-09 03:39:00 (CST-6)
Location: MACOMB
Magnitude: 52.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Public

Wind gusts estimated to be 60 mph blew down some 6 to 7 inch diameter tree limbs in Macomb, IL around 439 am June 18.

Hail in ROCK ISLAND, ILLINOIS
From 18-JUN-09 11:20:00 to 18-JUN-09 11:20:00 (CST-6)
Location: COAL VLY
Magnitude: 1.75 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Quarter to golf ball-sized hail fell for about five minutes in Coal Valley, IL around 1220 pm June 18.

Hail in HENRY, ILLINOIS
From 18-JUN-09 11:50:00 to 18-JUN-09 11:50:00 (CST-6)
Location: CAMBRIDGE
Magnitude: 0.88 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Hail in HENRY, ILLINOIS
From 18-JUN-09 11:50:00 to 18-JUN-09 11:50:00 (CST-6)
Location: WARNER
Magnitude: 1.75 
Property damage: 5.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Golf ball-sized hail fell for about 5 minutes approximately 1 mile north of Warner, IL around 1250 pm June 18.  It covered the ground and damaged the aluminum siding of a house.

Thunderstorm Wind in HENRY, ILLINOIS
From 18-JUN-09 11:58:00 to 18-JUN-09 11:58:00 (CST-6)
Location: GERMAN CORNER
Magnitude: 61.00 EG
Property damage: 25.00K
Crop damage: 250.00K
Reported by: Trained Spotter

Wind gusts estimated to be 70 mph blew down several 5 inch diameter tree branches, flattened some area corn fields, ripped part of a roof and some siding off a house, and snapped an evergreen tree 12 feet off the ground about 10 miles south of Atkinson, IL around 1258 pm June 18.

Thunderstorm Wind in HENRY, ILLINOIS
From 18-JUN-09 12:15:00 to 18-JUN-09 12:15:00 (CST-6)
Location: KEWANEE MUNI ARPT
Magnitude: 61.00 EG
Property damage: 100.00K
Crop damage: 0.00K
Reported by: Public

Wind gusts estimated to be 70 mph blew down some trees about 4 miles west of Kewanee, IL around 115 pm June 18.  One large tree fell onto a house.

Hail in ROCK ISLAND, ILLINOIS
From 18-JUN-09 11:28:00 to 18-JUN-09 11:28:00 (CST-6)
Location: MOLINE
Magnitude: 0.75 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Hail in ROCK ISLAND, ILLINOIS
From 18-JUN-09 11:28:00 to 18-JUN-09 11:28:00 (CST-6)
Location: COAL VLY
Magnitude: 1.75 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Law Enforcement

Golf ball-sized hail fell in Coal Valley, IL around 1228 pm June 18.

Hail in ROCK ISLAND, ILLINOIS
From 18-JUN-09 11:31:00 to 18-JUN-09 11:31:00 (CST-6)
Location: FRUITLAND
Magnitude: 1.00 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Quarter-sized hail fell at the intersection of John Deere Road and 41st Street in Rock Island, IL at 1231 pm on June 18.