During the evening of the 9th strong to severe storms initiated in parts of southern and western Minnesota near a surface low pressure center and attendant boundary and proceeded to move SE towards Iowa.  Eventually, prior to their entry into northern Iowa, the storms generally congealed and formed an MCS and rode the MUCAPE gradient S/SE into northern Iowa and produced numerous damaging wind reports and a couple for severe hail in the hours after midnight/early morning on the 10th.  The general environment was highly supportive for strong storms with MUCAPE values in excess of 2000 J/kg, and effective bulk shear in excess of 50 kts.

Thunderstorm Wind in HANCOCK, IOWA
From 10-JUL-17 00:47:00 to 10-JUL-17 00:47:00 (CST-6)
Location: KLEMME
Magnitude: 65.00 EG
Property damage: 150.00K
Crop damage: 0.00K
Reported by: Storm Chaser

Storm chaser video depicted extensive wind damage and likely wind driven hail damage in the town of Klemme.  Damage included numerous car, home, and business windows broken and trees downed on homes.  This is a delayed report and time estimated from radar.

Thunderstorm Wind in CERRO GORDO, IOWA
From 10-JUL-17 01:00:00 to 10-JUL-17 01:00:00 (CST-6)
Location: THORNTON
Magnitude: 61.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Trained spotter reported large trees downed from the winds.  This is a delayed report and time estimated from radar.

Thunderstorm Wind in HANCOCK, IOWA
From 10-JUL-17 00:25:00 to 10-JUL-17 00:25:00 (CST-6)
Location: CRYSTAL LAKE
Magnitude: 56.00 EG
Property damage: 10.00K
Crop damage: 0.00K
Reported by: Law Enforcement

Law enforcement reported trees and power lines down at Crystal Lake.  This is a delayed report and time estimated from radar.

Thunderstorm Wind in HANCOCK, IOWA
From 10-JUL-17 00:28:00 to 10-JUL-17 00:28:00 (CST-6)
Location: BRITT
Magnitude: 56.00 EG
Property damage: 5.00K
Crop damage: 0.00K
Reported by: Law Enforcement

Law enforcement reported power lines down on the northwest side of Britt.  The is a delayed report and time estimated from radar.

Thunderstorm Wind in HANCOCK, IOWA
From 10-JUL-17 00:39:00 to 10-JUL-17 00:39:00 (CST-6)
Location: GARNER
Magnitude: 61.00 EG
Property damage: 25.00K
Crop damage: 0.00K
Reported by: Storm Chaser

Storm chaser video depicted extensive wind damage to power poles, including series of snapped poles.  This is a delayed report and time estimated from radar.

Hail in HANCOCK, IOWA
From 10-JUL-17 00:48:00 to 10-JUL-17 00:48:00 (CST-6)
Location: KLEMME
Magnitude: 1.75 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Public

Public reported golf ball sized hail.  Time and location estimated from radar.

Hail in HANCOCK, IOWA
From 10-JUL-17 01:03:00 to 10-JUL-17 01:03:00 (CST-6)
Location: GOODELL
Magnitude: 1.75 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Trained spotter reported golf ball sized hail, also estimated winds at 60 mph.

Thunderstorm Wind in FRANKLIN, IOWA
From 10-JUL-17 01:13:00 to 10-JUL-17 01:13:00 (CST-6)
Location: LATIMER
Magnitude: 56.00 EG
Property damage: 10.00K
Crop damage: 0.00K
Reported by: Law Enforcement

Law enforcement reported power lines down in Latimer.  This is a delayed report and time estimated from radar.

Thunderstorm Wind in CERRO GORDO, IOWA
From 10-JUL-17 01:03:00 to 10-JUL-17 01:03:00 (CST-6)
Location: MESERVEY
Magnitude: 61.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Trained spotter reported 4 large trees downed from the winds.  This is a delayed report and time estimated from radar.

Thunderstorm Wind in WORTH, IOWA
From 09-JUL-17 23:05:00 to 09-JUL-17 23:05:00 (CST-6)
Location: KENSETT
Magnitude: 56.00 EG
Property damage: 20.00K
Crop damage: 0.00K
Reported by: Law Enforcement

Law enforcement reported a tree blown down on a house in Kensett.  This is a delayed report and time estimated from radar.

Thunderstorm Wind in WORTH, IOWA
From 09-JUL-17 23:10:00 to 09-JUL-17 23:10:00 (CST-6)
Location: HANLONTOWN
Magnitude: 61.00 EG
Property damage: 15.00K
Crop damage: 0.00K
Reported by: Emergency Manager

Emergency manager reported trees uprooted and a grain bin blown down in Hanlontown.  This is a delayed report and time estimated by radar.

Thunderstorm Wind in HANCOCK, IOWA
From 10-JUL-17 00:35:00 to 10-JUL-17 00:45:00 (CST-6)
Location: DUNCAN
Magnitude: 65.00 EG
Property damage: 25.00K
Crop damage: 100.00K
Reported by: Emergency Manager

Emergency manager reported significant wind-driven hail damage to corn and bean fields between Britt and Klemme.  Golf ball or larger hail and 70 to 80 mph winds pulverized 5 to 6 foot cornstalks to stubble.  Trees and power lines also downed.

Thunderstorm Wind in TAMA, IOWA
From 10-JUL-17 02:00:00 to 10-JUL-17 02:00:00 (CST-6)
Location: BUCKINGHAM
Magnitude: 56.00 EG
Property damage: 20.00K
Crop damage: 0.00K
Reported by: Department of Highways

Iowa DOT reported power lines down along Highway 63 at mile marker 144.  Time estimated from radar.

Thunderstorm Wind in TAMA, IOWA
From 10-JUL-17 02:19:00 to 10-JUL-17 02:19:00 (CST-6)
Location: TRAER
Magnitude: 56.00 EG
Property damage: 20.00K
Crop damage: 0.00K
Reported by: Law Enforcement

Law enforcement reported power lines blown down onto a semi trailer.  This is a delayed report and time estimated from radar.