A line of thunderstorms tracked southeast across northeast Iowa into eastern Iowa and northwest Illinois during the afternoon and evening of Sunday, June 30, 2019, bringing widespread downed trees and power lines as 50-70 mph winds rolled through.  The strongest winds were recorded in Dubuque County, where a wind gust of 76 mph was observed at the Dubuque Regional Airport.  Several hometowns were without power after the storms passed.

Thunderstorm Wind in DUBUQUE, IOWA
From 30-JUN-19 16:36:00 to 30-JUN-19 16:36:00 (CST-6)
Location: (DBQ)DUBUQUE MUNI AR
Magnitude: 78.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: NWS Storm Survey

Barn partially destroyed and trees snapped off.

Thunderstorm Wind in DUBUQUE, IOWA
From 30-JUN-19 16:41:00 to 30-JUN-19 16:41:00 (CST-6)
Location: (DBQ)DUBUQUE MUNI AR
Magnitude: 78.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Public

Barn reported destroyed. One possible injury.

Thunderstorm Wind in DUBUQUE, IOWA
From 30-JUN-19 16:30:00 to 30-JUN-19 16:30:00 (CST-6)
Location: PEOSTA
Magnitude: 61.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Numerous tree limbs blown down.

Thunderstorm Wind in DUBUQUE, IOWA
From 30-JUN-19 16:42:00 to 30-JUN-19 16:42:00 (CST-6)
Location: LUXEMBURG
Magnitude: 61.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Department of Highways

Power lines reported down between Luxemburg and Holy Cross.

Thunderstorm Wind in JACKSON, IOWA
From 30-JUN-19 16:42:00 to 30-JUN-19 16:42:00 (CST-6)
Location: OTTER CREEK
Magnitude: 70.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Amateur Radio

Two sheds blown over in town.

Thunderstorm Wind in JONES, IOWA
From 30-JUN-19 16:56:00 to 30-JUN-19 16:56:00 (CST-6)
Location: OXFORD JCT
Magnitude: 56.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Numerous tree branches were blown down.

Thunderstorm Wind in LINN, IOWA
From 30-JUN-19 16:49:00 to 30-JUN-19 16:49:00 (CST-6)
Location: CEDAR RAPIDS
Magnitude: 56.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Numerous large tree limbs down.

Thunderstorm Wind in JONES, IOWA
From 30-JUN-19 16:54:00 to 30-JUN-19 16:54:00 (CST-6)
Location: OLIN
Magnitude: 87.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Roofs were ripped off multiple buildings in town.

Thunderstorm Wind in JACKSON, IOWA
From 30-JUN-19 17:02:00 to 30-JUN-19 17:02:00 (CST-6)
Location: BELLEVUE
Magnitude: 65.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Department of Highways

Trees were blown down along Highway 52 near Bellevue.

Thunderstorm Wind in CEDAR, IOWA
From 30-JUN-19 17:08:00 to 30-JUN-19 17:08:00 (CST-6)
Location: TIPTON
Magnitude: 56.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Numerous trees damaged in town.

Thunderstorm Wind in JACKSON, IOWA
From 30-JUN-19 17:08:00 to 30-JUN-19 17:08:00 (CST-6)
Location: MAQUOKETA
Magnitude: 56.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Numerous 2 to 4 inch diameter tree branches blown down.

Thunderstorm Wind in JONES, IOWA
From 30-JUN-19 17:13:00 to 30-JUN-19 17:13:00 (CST-6)
Location: MONTICELLO
Magnitude: 78.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Emergency Manager

Widespread wind damage over the county, with trees blown down and a roof off a shed in Olin.

Thunderstorm Wind in CLINTON, IOWA
From 30-JUN-19 17:15:00 to 30-JUN-19 17:15:00 (CST-6)
Location: WHEATLAND
Magnitude: 78.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: COOP Observer

Roofs were blown off 2 barns with trees also down.

Thunderstorm Wind in CLINTON, IOWA
From 30-JUN-19 17:16:00 to 30-JUN-19 17:16:00 (CST-6)
Location: CHARLOTTE
Magnitude: 70.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Public

Trees blown down along Highway 136, causing it to be closed.

Thunderstorm Wind in CLINTON, IOWA
From 30-JUN-19 17:20:00 to 30-JUN-19 17:20:00 (CST-6)
Location: ELVIRA
Magnitude: 74.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Social Media

A photo of a machine shed destroyed with damage also to home and other sheds. A large overhead door was blown out.

Thunderstorm Wind in SCOTT, IOWA
From 30-JUN-19 17:35:00 to 30-JUN-19 17:35:00 (CST-6)
Location: WALCOTT
Magnitude: 65.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Social Media

Facebook photo of a roof blown off a machine shed.

Thunderstorm Wind in SCOTT, IOWA
From 30-JUN-19 17:36:00 to 30-JUN-19 17:36:00 (CST-6)
Location: SCOTT COUNTY PARK
Magnitude: 52.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Public

Fence destroyed and blown into a pool at 18360 272 St.

Thunderstorm Wind in SCOTT, IOWA
From 30-JUN-19 17:37:00 to 30-JUN-19 17:37:00 (CST-6)
Location: SCOTT COUNTY PARK
Magnitude: 52.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: NWS Employee

Three inch diameter tree limbs were blown down.

Thunderstorm Wind in SCOTT, IOWA
From 30-JUN-19 17:38:00 to 30-JUN-19 17:38:00 (CST-6)
Location: DAVENPORT
Magnitude: 52.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Large tree branch blown down at 1624 West Columbia Ave.

Thunderstorm Wind in SCOTT, IOWA
From 30-JUN-19 17:40:00 to 30-JUN-19 17:40:00 (CST-6)
Location: DAVENPORT
Magnitude: 65.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Public

Large tree blown down, onto a home.

Thunderstorm Wind in SCOTT, IOWA
From 30-JUN-19 17:41:00 to 30-JUN-19 17:41:00 (CST-6)
Location: BETTENDORF
Magnitude: 56.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Public

LARGE 4 TO 6 inch diameter tree limbs blown down.

Thunderstorm Wind in MUSCATINE, IOWA
From 30-JUN-19 17:43:00 to 30-JUN-19 17:43:00 (CST-6)
Location: MUSCATINE
Magnitude: 56.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Emergency Manager

Several tree limbs and power lines blown down in town.

Thunderstorm Wind in BUCHANAN, IOWA
From 30-JUN-19 15:52:00 to 30-JUN-19 15:52:00 (CST-6)
Location: HAZLETON
Magnitude: 51.00 MG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: COOP Observer

Thunderstorm Wind in DUBUQUE, IOWA
From 30-JUN-19 16:17:00 to 30-JUN-19 16:17:00 (CST-6)
Location: NEW VIENNA
Magnitude: 52.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Emergency Manager

Fifty two knot winds reported.

Thunderstorm Wind in DUBUQUE, IOWA
From 30-JUN-19 16:44:00 to 30-JUN-19 16:44:00 (CST-6)
Location: (DBQ)DUBUQUE MUNI AR
Magnitude: 66.00 MG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: ASOS

Thunderstorm Wind in LINN, IOWA
From 30-JUN-19 16:45:00 to 30-JUN-19 16:45:00 (CST-6)
Location: MARION ARPT
Magnitude: 56.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Measured winds reported by spotter.

Thunderstorm Wind in JACKSON, IOWA
From 30-JUN-19 17:04:00 to 30-JUN-19 17:04:00 (CST-6)
Location: MAQUOKETA
Magnitude: 52.00 MG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Mesonet

Measured at the RWIS Iowa Department of Transportation.

Thunderstorm Wind in JACKSON, IOWA
From 30-JUN-19 17:05:00 to 30-JUN-19 17:05:00 (CST-6)
Location: BELLEVUE
Magnitude: 65.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Measured on a hill.

Thunderstorm Wind in CEDAR, IOWA
From 30-JUN-19 17:07:00 to 30-JUN-19 17:12:00 (CST-6)
Location: LOWDEN
Magnitude: 52.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: COOP Observer

Five minutes of 50 to 60 MPH winds.

Thunderstorm Wind in CLINTON, IOWA
From 30-JUN-19 17:11:00 to 30-JUN-19 17:11:00 (CST-6)
Location: CLINTON
Magnitude: 56.00 MG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Measured wind speed.

Thunderstorm Wind in LINN, IOWA
From 30-JUN-19 17:20:00 to 30-JUN-19 17:20:00 (CST-6)
Location: (CID)CEDAR RAPIDS AR
Magnitude: 60.00 MG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Mesonet

Iowa Dept of Transportation equipment.

Thunderstorm Wind in SCOTT, IOWA
From 30-JUN-19 17:22:00 to 30-JUN-19 17:22:00 (CST-6)
Location: DIXON
Magnitude: 58.00 MG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Measured wind speed.

Thunderstorm Wind in SCOTT, IOWA
From 30-JUN-19 17:32:00 to 30-JUN-19 17:32:00 (CST-6)
Location: MAYSVILLE
Magnitude: 54.00 MG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Mesonet

Iowa Department of Transportation site.

Thunderstorm Wind in DES MOINES, IOWA
From 30-JUN-19 18:39:00 to 30-JUN-19 18:39:00 (CST-6)
Location: BURLINGTON ARPT
Magnitude: 50.00 MG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: ASOS

Thunderstorm Wind in BUCHANAN, IOWA
From 30-JUN-19 16:00:00 to 30-JUN-19 16:00:00 (CST-6)
Location: STANLEY
Magnitude: 70.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

A large cedar tree snapped off 2 feet above ground and a small outbuilding was destroyed at 2214  108TH ST, Hazelton, Iowa.

Thunderstorm Wind in DELAWARE, IOWA
From 30-JUN-19 16:01:00 to 30-JUN-19 16:01:00 (CST-6)
Location: EDGEWOOD
Magnitude: 70.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Emergency Manager

Numerous trees were reported blown down.

Thunderstorm Wind in BUCHANAN, IOWA
From 30-JUN-19 16:02:00 to 30-JUN-19 16:02:00 (CST-6)
Location: FONTANA COUNTY PARK
Magnitude: 61.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

A large tree limb was blown down in Fontana Park.

Thunderstorm Wind in DELAWARE, IOWA
From 30-JUN-19 16:07:00 to 30-JUN-19 16:07:00 (CST-6)
Location: DUNDEE
Magnitude: 70.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Emergency Manager

Numerous trees blown down.

Thunderstorm Wind in BUCHANAN, IOWA
From 30-JUN-19 16:10:00 to 30-JUN-19 16:10:00 (CST-6)
Location: INDEPENDENCE
Magnitude: 70.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Numerous large tree branches down, and few large trees snapped off 2 to 3 feet above ground.

Thunderstorm Wind in BUCHANAN, IOWA
From 30-JUN-19 16:10:00 to 30-JUN-19 16:10:00 (CST-6)
Location: INDEPENDENCE
Magnitude: 65.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Tree limbs and utility lines blown down.

Thunderstorm Wind in DELAWARE, IOWA
From 30-JUN-19 16:11:00 to 30-JUN-19 16:11:00 (CST-6)
Location: EARLVILLE
Magnitude: 78.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Emergency Manager

Roof blown off a  house.

Thunderstorm Wind in DUBUQUE, IOWA
From 30-JUN-19 16:17:00 to 30-JUN-19 16:17:00 (CST-6)
Location: NEW VIENNA
Magnitude: 56.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Emergency Manager

Tree limbs blown down.

Thunderstorm Wind in DELAWARE, IOWA
From 30-JUN-19 16:18:00 to 30-JUN-19 16:18:00 (CST-6)
Location: MASONVILLE
Magnitude: 65.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Emergency Manager

A large tree  was blown down blocking a rural road north of Masonville.

Thunderstorm Wind in DUBUQUE, IOWA
From 30-JUN-19 16:28:00 to 30-JUN-19 16:28:00 (CST-6)
Location: FILLMORE
Magnitude: 87.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: NWS Storm Survey

An anchored mobile home was destroyed 4 S of Epworth with 2 injuries.  Further southeast along the Epworth to Fillmore track, a home lost its roof.  Another injury occurred near Bernard at 14029 Ryan Rd, where a barn was partially destroyed and trees snapped off.  All injuries were not life threatening.