Warm and humid conditions prevailed over the northwest Illinois July 10, as a warm front surged northward into Minnesota and Wisconsin.  Several rounds of showers and thunderstorms were common across areas northeast of a line from Princeton, Illinois to Waterloo, Iowa, some of which were severe.  Torrential rains, hail up to the size of a quarter, and wind gusts over 60 mph were observed with some of the severe thunderstorms.

Hail in BUREAU, ILLINOIS
From 10-JUL-08 14:32:00 to 10-JUL-08 14:32:00 (CST-6)
Location: LA MOILLE
Magnitude: 0.75 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Penny-sized hail fell 1 mile east of La Moille, IL around 332 pm July 10.  This report was relayed by the Emergency Manager.

Hail in HENRY, ILLINOIS
From 10-JUL-08 15:40:00 to 10-JUL-08 15:40:00 (CST-6)
Location: OSCO
Magnitude: 0.88 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Nickel-sized hail fell 6 miles northwest of Cambridge, IL at 440 pm July 10.

Hail in BUREAU, ILLINOIS
From 10-JUL-08 17:50:00 to 10-JUL-08 17:50:00 (CST-6)
Location: TISKILWA
Magnitude: 0.75 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Spotter drove through dime-sized hail the entire route from Tiskilwa, IL to Lake Thunderbird, IL between 650 pm and 657 pm July 10.

Hail in BUREAU, ILLINOIS
From 10-JUL-08 20:17:00 to 10-JUL-08 20:17:00 (CST-6)
Location: WALNUT
Magnitude: 1.00 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Emergency Manager

Quarter-sized hail fell on Baseline Road about 2 miles north of Walnut, IL at 917 pm July 10.

Hail in WHITESIDE, ILLINOIS
From 10-JUL-08 20:00:00 to 10-JUL-08 20:00:00 (CST-6)
Location: STERLING ARPT
Magnitude: 0.75 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Law Enforcement

Penny-sized hail fell 2 miles south of Rock Falls, IL at 900 pm July 10.

Thunderstorm Wind in BUREAU, ILLINOIS
From 10-JUL-08 20:25:00 to 10-JUL-08 20:25:00 (CST-6)
Location: WALNUT
Magnitude: 52.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Amateur Radio

Wind gusts estimated to be 50 to 60 mph were observed near a funeral home just east of Walnut, IL at 925 pm July 10.

Hail in BUREAU, ILLINOIS
From 10-JUL-08 20:28:00 to 10-JUL-08 20:28:00 (CST-6)
Location: WALNUT
Magnitude: 1.00 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Quarter-sized hail fell 1 mile northeast of Walnut, IL at 928 pm July 10.

Hail in BUREAU, ILLINOIS
From 10-JUL-08 17:42:00 to 10-JUL-08 17:42:00 (CST-6)
Location: TISKILWA
Magnitude: 0.75 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Penny-sized hail fell in Tiskilwa, IL at 642 pm July 10.

Hail in PUTNAM, ILLINOIS
From 10-JUL-08 17:57:00 to 10-JUL-08 17:57:00 (CST-6)
Location: GOOSE LAKE
Magnitude: 0.75 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Dime-sized hail fell at Lake Thunderbird or 3 miles northwest of Putnam, IL around 657 pm July 10.

Hail in PUTNAM, ILLINOIS
From 10-JUL-08 18:10:00 to 10-JUL-08 18:10:00 (CST-6)
Location: MAGNOLIA
Magnitude: 0.88 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Public

Nickel-sized hail fell 5 miles southwest of Mc Nabb, IL at 710 pm July 10.

Flash Flood in JO DAVIESS, ILLINOIS
From 10-JUL-08 19:14:00 to 10-JUL-08 21:00:00 (CST-6)
Location: GALENA
Flood cause: Heavy Rain
Property damage: 0.00K
Crop damage: 0.00K
Reported by: COOP Observer

Heavy rains measuring 1.00 inches in just 15 minutes resulted in flash flooding in Galena, IL during the evening of July 10.

Hail in WHITESIDE, ILLINOIS
From 10-JUL-08 19:39:00 to 10-JUL-08 19:39:00 (CST-6)
Location: COLETA
Magnitude: 0.88 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Nickel-sized hail fell 3 miles southeast of Coleta, IL at 839 pm July 10.

Thunderstorm Wind in BUREAU, ILLINOIS
From 10-JUL-08 15:36:00 to 10-JUL-08 15:36:00 (CST-6)
Location: WYANET
Magnitude: 52.00 EG
Property damage: 25.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Wind gusts estimated to be 60 mph blew a semi truck over on Interstate 80 about 6 miles west of Princeton, IL at 436 pm July 10.