A disturbance moving northeastward across the region led to the development of a severe squall line with bowing segments that moved from eastern Iowa into northwest Illinois during the early evening hours. This line of thunderstorms produced widespread wind damage along and to the north of Interstate 80. There was an EF-1 tornado near Atkinson in Henry County and an EF-0 near Van Orin in Bureau County.

Thunderstorm Wind in ROCK ISLAND, ILLINOIS
From 24-JUN-13 14:39:00 to 24-JUN-13 14:39:00 (CST-6)
Location: MOLINE
Magnitude: 59.00 MG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: ASOS

The ASOS at the Quad City International Airport measured a wind gusts of 68 mph.

Thunderstorm Wind in HENRY, ILLINOIS
From 24-JUN-13 14:46:00 to 24-JUN-13 14:46:00 (CST-6)
Location: WOODHULL
Magnitude: 52.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Report of a semi truck overturned on Interstate 74 just north of Woodhull.

Hail in ROCK ISLAND, ILLINOIS
From 24-JUN-13 15:15:00 to 24-JUN-13 15:15:00 (CST-6)
Location: MOLINE
Magnitude: 0.75 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

In addition to the hail, trees were blown down along Avenue of the Cities in Moline. Also there were power outages in the same area.

Thunderstorm Wind in WHITESIDE, ILLINOIS
From 24-JUN-13 15:20:00 to 24-JUN-13 15:20:00 (CST-6)
Location: TAMPICO
Magnitude: 50.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

A trained spotter reported 2.5 inch diameter tree branches down.

Thunderstorm Wind in BUREAU, ILLINOIS
From 24-JUN-13 15:21:00 to 24-JUN-13 15:21:00 (CST-6)
Location: NEW BEDFORD
Magnitude: 54.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Emergency Manager

The emergency manager reported a tree split in half.

Thunderstorm Wind in WHITESIDE, ILLINOIS
From 24-JUN-13 15:35:00 to 24-JUN-13 15:35:00 (CST-6)
Location: ROCK FALLS
Magnitude: 52.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Fire Department/Rescue

The fire department reported a large tree down on a house.

Tornado in BUREAU, ILLINOIS
From 24-JUN-13 15:33:00 to 24-JUN-13 15:34:00 (CST-6)
Location: VAN ORIN
Tornado F-scale: EF0
Property damage: 10.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Over a dozen large pine trees were downed, including several that had been snapped across two farmsteads. There was minor damage to one of the homes from a tree falling on it. In addition, the corn crop was severely bent between the two properties.

Thunderstorm Wind in WARREN, ILLINOIS
From 24-JUN-13 14:28:00 to 24-JUN-13 14:28:00 (CST-6)
Location: SMITHSHIRE
Magnitude: 52.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Emergency Manager

The Emergency Manager estimated thunderstorm wind gusts of 50 to 60 mph.

Thunderstorm Wind in HENRY, ILLINOIS
From 24-JUN-13 14:54:00 to 24-JUN-13 14:54:00 (CST-6)
Location: CAMBRIDGE
Magnitude: 52.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Thunderstorm wind gusts were estimated at 50 to 60 mph.

Thunderstorm Wind in HENRY, ILLINOIS
From 24-JUN-13 15:07:00 to 24-JUN-13 15:07:00 (CST-6)
Location: ATKINSON
Magnitude: 61.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: NWS Employee

An off duty NWS employee estimated a thunderstorm wind gust of 70 mph.

Thunderstorm Wind in WHITESIDE, ILLINOIS
From 24-JUN-13 15:27:00 to 24-JUN-13 15:27:00 (CST-6)
Location: ROCK FALLS
Magnitude: 52.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Thunderstorm wind gusts were estimated at 55 to 60 mph.

Thunderstorm Wind in WHITESIDE, ILLINOIS
From 24-JUN-13 15:31:00 to 24-JUN-13 15:31:00 (CST-6)
Location: STERLING
Magnitude: 61.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

A trained spotter reported a wind gust of 70 mph.

Thunderstorm Wind in BUREAU, ILLINOIS
From 24-JUN-13 15:45:00 to 24-JUN-13 15:45:00 (CST-6)
Location: LA MOILLE
Magnitude: 50.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

A three inch diameter tree was split in half due to a thunderstorm wind gust.

Thunderstorm Wind in ROCK ISLAND, ILLINOIS
From 24-JUN-13 14:38:00 to 24-JUN-13 14:38:00 (CST-6)
Location: MOLINE
Magnitude: 60.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Several large trees, about a foot in diameter, were reported down near 19th Avenue and 26th Avenue. Time of the event was estimated using radar.

Thunderstorm Wind in PUTNAM, ILLINOIS
From 24-JUN-13 15:40:00 to 24-JUN-13 15:40:00 (CST-6)
Location: HENNEPIN
Magnitude: 50.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Several tree branches that were 1 to 2 inches in diameter were reported down.

Tornado in HENRY, ILLINOIS
From 24-JUN-13 15:00:00 to 24-JUN-13 15:05:00 (CST-6)
Location: ATKINSON
Tornado F-scale: EF1
Property damage: 50.00K
Crop damage: 0.00K
Reported by: NWS Storm Survey

The tornado snapped several tree trunks, destroyed a grain bin, downed large limbs, and damaged the roof of one residence.

Thunderstorm Wind in BUREAU, ILLINOIS
From 24-JUN-13 15:40:00 to 24-JUN-13 15:40:00 (CST-6)
Location: VAN ORIN
Magnitude: 61.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

A trained spotter reported a large elm tree was down along with numerous branches. There was also a sheet of plywood blown across the road.

Thunderstorm Wind in BUREAU, ILLINOIS
From 24-JUN-13 15:39:00 to 24-JUN-13 15:39:00 (CST-6)
Location: MALDEN
Magnitude: 61.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

A trained spotter reported a large two and half foot diameter tree down along with several branches. Time of this event was estimated using radar.

Thunderstorm Wind in WHITESIDE, ILLINOIS
From 24-JUN-13 15:15:00 to 24-JUN-13 15:15:00 (CST-6)
Location: TAMPICO
Magnitude: 70.00 EG
Property damage: 10.00K
Crop damage: 0.00K
Reported by: Public

Power lines and trees were downed in Tampico.

Thunderstorm Wind in ROCK ISLAND, ILLINOIS
From 24-JUN-13 14:39:00 to 24-JUN-13 14:39:00 (CST-6)
Location: SILVIS HGTS
Magnitude: 52.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

A trained spotter reported major tree damage with many trees down.

Thunderstorm Wind in ROCK ISLAND, ILLINOIS
From 24-JUN-13 14:39:00 to 24-JUN-13 14:39:00 (CST-6)
Location: MOLINE
Magnitude: 52.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Public

Several large tree branches were blown down.