A weak, relatively stationary boundary found itself draped across northern Iowa throughout the day.  Overall conditions were not incredible, but with around 1000 J/kg MLCAPE, LCLs below 1000 m, and the weak boundary in place, a number of funnel clouds were reported as storms initiated.  With overall weak flow as well, the storms primarily produced, in addition to the funnel clouds, localized heavy rainfall and a few damaging wind reports.  Later in the evening, storms that originally initiated to the west in Nebraska tracked across the northern half of Iowa as an MCS. Other than local heavy rainfall, a few damaging wind reports and severe wind gusts were reported.

Thunderstorm Wind in CRAWFORD, IOWA
From 29-JUN-17 18:28:00 to 29-JUN-17 18:28:00 (CST-6)
Location: WESTSIDE
Magnitude: 52.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Trained spotter reported several 6 inch tree branches down along with the 60 mph wind gusts.

Thunderstorm Wind in FRANKLIN, IOWA
From 29-JUN-17 20:02:00 to 29-JUN-17 20:02:00 (CST-6)
Location: LATIMER
Magnitude: 52.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Emergency Manager

Emergency manager reported very strong winds and had to pull off the road.  Could not see across the parking lot.  Estimated winds to be around 60 mph.

Funnel Cloud in FRANKLIN, IOWA
From 29-JUN-17 16:14:00 to 29-JUN-17 16:14:00 (CST-6)
Location: BRADFORD
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Trained spotter reported a funnel cloud approximately half way to the ground.

Funnel Cloud in FRANKLIN, IOWA
From 29-JUN-17 16:21:00 to 29-JUN-17 16:21:00 (CST-6)
Location: OAKLAND
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Public

Public reported a funnel cloud looking west and slightly north along Hardin Rd.

Thunderstorm Wind in HANCOCK, IOWA
From 29-JUN-17 20:15:00 to 29-JUN-17 20:15:00 (CST-6)
Location: MILLER
Magnitude: 55.00 MG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: AWOS

Forest City AWOS recorded a 63 mph wind gust.

Thunderstorm Wind in MARSHALL, IOWA
From 29-JUN-17 20:40:00 to 29-JUN-17 20:40:00 (CST-6)
Location: MARSHALLTOWN ARPT
Magnitude: 51.00 MG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: ASOS

Marshalltown AWOS recorded a 59 mph wind gust.

Funnel Cloud in WRIGHT, IOWA
From 29-JUN-17 16:24:00 to 29-JUN-17 16:24:00 (CST-6)
Location: DOWS
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Social Media

Public reported a funnel cloud looking north of the truck stop near I-35 and Highway 20 interchange.

Funnel Cloud in FRANKLIN, IOWA
From 29-JUN-17 16:42:00 to 29-JUN-17 16:42:00 (CST-6)
Location: OAKLAND
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Fire Department/Rescue

Local fire department reported a brief funnel cloud near Popejoy.

Thunderstorm Wind in BLACK HAWK, IOWA
From 29-JUN-17 21:00:00 to 29-JUN-17 21:00:00 (CST-6)
Location: EVANSDALE
Magnitude: 50.00 MG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Mesonet

Iowa DOT RWIS station recorded a 58 mph wind gust.

Thunderstorm Wind in WORTH, IOWA
From 29-JUN-17 20:33:00 to 29-JUN-17 20:33:00 (CST-6)
Location: GRAFTON
Magnitude: 60.00 MG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Trained spotter reported a 69 mph wind gust recorded from a home weather station.

Flash Flood in FRANKLIN, IOWA
From 29-JUN-17 19:12:00 to 29-JUN-17 22:00:00 (CST-6)
Location: BRADFORD
Flood cause: Heavy Rain
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Law Enforcement

Law enforcement reported water over the road along 70th near and just west of Bradford.

Flash Flood in FRANKLIN, IOWA
From 29-JUN-17 19:13:00 to 29-JUN-17 22:00:00 (CST-6)
Location: BRADFORD
Flood cause: Heavy Rain
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Law Enforcement

Law enforcement reported water over the road and closure along Highway 65 at 70th St.

Thunderstorm Wind in WRIGHT, IOWA
From 29-JUN-17 19:40:00 to 29-JUN-17 19:40:00 (CST-6)
Location: DOWS
Magnitude: 52.00 MG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Mesonet

Iowa DOT RWIS station measured a 60 mph wind gust.

Thunderstorm Wind in FRANKLIN, IOWA
From 29-JUN-17 19:52:00 to 29-JUN-17 19:52:00 (CST-6)
Location: COULTER
Magnitude: 52.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Trained spotter reported 60 mph wind gusts near Latimer and Coulter.

Thunderstorm Wind in CERRO GORDO, IOWA
From 29-JUN-17 20:30:00 to 29-JUN-17 20:30:00 (CST-6)
Location: MASON CITY
Magnitude: 56.00 MG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Amateur Radio

Amateur radio operator reported a 64 mph wind gust measured by a home weather station.

Flash Flood in FRANKLIN, IOWA
From 29-JUN-17 20:38:00 to 30-JUN-17 02:30:00 (CST-6)
Location: LATIMER
Flood cause: Heavy Rain
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Emergency Manager

Emergency manager reported flash flooding of streets in Latimer.