After an early morning round of dissipating thunderstorms that brought gusty winds, late afternoon storms formed over eastern Iowa and northwest Illinois. These storms produced numerous hail reports, and eventually produced damaging winds in the late evening hours as they moved into Illinois.

Thunderstorm Wind in LINN, IOWA
From 15-JUN-17 08:09:00 to 15-JUN-17 08:09:00 (CST-6)
Location: MT VERNON
Magnitude: 50.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Tree limbs were reported down in southeast corner of Mt Vernon and power was knocked out to the city of Mt Vernon.  The time was estimated to have occurred with the early morning storms.

Hail in LINN, IOWA
From 15-JUN-17 11:19:00 to 15-JUN-17 11:19:00 (CST-6)
Location: CENTER PT
Magnitude: 1.25 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

A spotter reported the hail near I-380 mile marker 32.

Hail in BUCHANAN, IOWA
From 15-JUN-17 18:32:00 to 15-JUN-17 18:32:00 (CST-6)
Location: INDEPENDENCE
Magnitude: 0.75 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Hail in BUCHANAN, IOWA
From 15-JUN-17 18:32:00 to 15-JUN-17 18:32:00 (CST-6)
Location: JESUP
Magnitude: 1.00 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Hail in BENTON, IOWA
From 15-JUN-17 19:15:00 to 15-JUN-17 19:15:00 (CST-6)
Location: URBANA
Magnitude: 0.88 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Hail in LINN, IOWA
From 15-JUN-17 19:23:00 to 15-JUN-17 19:23:00 (CST-6)
Location: CENTER PT
Magnitude: 1.00 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Hail in LINN, IOWA
From 15-JUN-17 19:28:00 to 15-JUN-17 19:28:00 (CST-6)
Location: CENTER PT
Magnitude: 1.00 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Emergency Manager

Hail in LINN, IOWA
From 15-JUN-17 19:29:00 to 15-JUN-17 19:29:00 (CST-6)
Location: PRAIRIEBURG
Magnitude: 0.88 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Hail in BUCHANAN, IOWA
From 15-JUN-17 19:34:00 to 15-JUN-17 19:34:00 (CST-6)
Location: INDEPENDENCE
Magnitude: 1.00 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Hail in BUCHANAN, IOWA
From 15-JUN-17 19:36:00 to 15-JUN-17 19:36:00 (CST-6)
Location: INDEPENDENCE
Magnitude: 1.00 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Thunderstorm Wind in SCOTT, IOWA
From 15-JUN-17 21:15:00 to 15-JUN-17 21:15:00 (CST-6)
Location: PANORAMA PARK
Magnitude: 52.00 MG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Hail in BUCHANAN, IOWA
From 15-JUN-17 19:40:00 to 15-JUN-17 19:40:00 (CST-6)
Location: INDEPENDENCE
Magnitude: 1.00 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Hail in LINN, IOWA
From 15-JUN-17 19:53:00 to 15-JUN-17 19:53:00 (CST-6)
Location: MARION
Magnitude: 1.00 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Hail in LINN, IOWA
From 15-JUN-17 20:03:00 to 15-JUN-17 20:03:00 (CST-6)
Location: TROY MILLS
Magnitude: 1.00 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Hail in WASHINGTON, IOWA
From 15-JUN-17 21:59:00 to 15-JUN-17 21:59:00 (CST-6)
Location: WELLMAN
Magnitude: 0.88 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Hail in BENTON, IOWA
From 15-JUN-17 22:55:00 to 15-JUN-17 22:55:00 (CST-6)
Location: BELLE PLAINE
Magnitude: 0.88 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Hail in BENTON, IOWA
From 15-JUN-17 22:59:00 to 15-JUN-17 22:59:00 (CST-6)
Location: BELLE PLAINE
Magnitude: 1.00 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Thunderstorm Wind in CEDAR, IOWA
From 15-JUN-17 20:30:00 to 15-JUN-17 20:30:00 (CST-6)
Location: TIPTON
Magnitude: 56.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Broadcast Media

Trees and power lines down across Highway 38. The public report time is estimated from radar data.

Thunderstorm Wind in SCOTT, IOWA
From 15-JUN-17 21:05:00 to 15-JUN-17 21:05:00 (CST-6)
Location: DAVENPORT ARPT
Magnitude: 65.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: NWS Employee

Numerous large tree branches were blown down with a few trees blown over.

Hail in JOHNSON, IOWA
From 15-JUN-17 22:22:00 to 15-JUN-17 22:22:00 (CST-6)
Location: HILLS
Magnitude: 1.00 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Hail in BENTON, IOWA
From 15-JUN-17 20:02:00 to 15-JUN-17 20:02:00 (CST-6)
Location: ATKINS
Magnitude: 1.00 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Thunderstorm Wind in SCOTT, IOWA
From 15-JUN-17 20:57:00 to 15-JUN-17 21:02:00 (CST-6)
Location: DAVENPORT ARPT
Magnitude: 54.00 MG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: ASOS

Winds were measured by the Davenport Airport, KDVN ASOS, with a peak wind of 62 mph, and maximum sustained wind of 48 mph for a 5 minute period ending at 1002 PM.

Hail in LINN, IOWA
From 15-JUN-17 18:32:00 to 15-JUN-17 18:32:00 (CST-6)
Location: ALBURNETT
Magnitude: 0.88 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Public

This report was received through social media.

Thunderstorm Wind in LINN, IOWA
From 15-JUN-17 19:15:00 to 15-JUN-17 19:15:00 (CST-6)
Location: LAFAYETTE
Magnitude: 50.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Amateur Radio

Large trees limbs were reported blown down on Alice Road, between Alice and Toddville.

Hail in BENTON, IOWA
From 15-JUN-17 19:18:00 to 15-JUN-17 19:18:00 (CST-6)
Location: URBANA
Magnitude: 1.00 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Emergency Manager

The report was relayed from law enforcement.

Hail in LINN, IOWA
From 15-JUN-17 19:19:00 to 15-JUN-17 19:19:00 (CST-6)
Location: CENTER PT
Magnitude: 1.25 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

The hail was reported along Interstate 380.

Thunderstorm Wind in LINN, IOWA
From 15-JUN-17 19:39:00 to 15-JUN-17 19:39:00 (CST-6)
Location: MARION
Magnitude: 61.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

A large tree was blown down.

Thunderstorm Wind in LINN, IOWA
From 15-JUN-17 19:43:00 to 15-JUN-17 19:43:00 (CST-6)
Location: MARION ARPT
Magnitude: 56.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Estimated winds of 60 to 70 mph brought branches down at the intersection of Highways 13 and 151.

Thunderstorm Wind in LINN, IOWA
From 15-JUN-17 19:50:00 to 15-JUN-17 19:50:00 (CST-6)
Location: CEDAR RAPIDS
Magnitude: 50.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

An 18 inch diameter tree was blown down.

Thunderstorm Wind in SCOTT, IOWA
From 15-JUN-17 21:00:00 to 15-JUN-17 21:00:00 (CST-6)
Location: DAVENPORT ARPT
Magnitude: 50.00 MG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Department of Highways

Winds were measured by Iowa DOT RWIS at I-80 and I-280 interchange.

Thunderstorm Wind in SCOTT, IOWA
From 15-JUN-17 21:15:00 to 15-JUN-17 21:15:00 (CST-6)
Location: PANORAMA PARK
Magnitude: 61.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Broadcast Media

Numerous reports and photos of a large tree branch blown down and as well as reports of trees blown down over much of Bettendorf. Reports were relayed through social media.

Thunderstorm Wind in SCOTT, IOWA
From 15-JUN-17 21:15:00 to 15-JUN-17 21:15:00 (CST-6)
Location: PANORAMA PARK
Magnitude: 56.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Wind gusts of 65 TO 70 mph were reported, with several  3 to 4 inch limbs blown down.