A strong disturbance moved through central Iowa during the late afternoon and evening of June 26 brought showers and severe thunderstorms to portions of central and eastern Iowa.  Widespread tree damage occurred across Van Buren County.  One to one and a half inches of rain fell across northeastern Missouri and southeastern Iowa which lead to some flash flooding and flooding.
During the late evening of June 26 and early morning of June 27, another line of severe thunderstorms moved into parts of southeast Iowa, northeast Missouri, and west central Illinois, as a warm front lifted northward into the area.  Winds in excess of 70 mph and torrential rains accompanied the storms.  In addition to widespread tree damage, some buildings collapsed in Keokuk, IA.  Rainfall totals of 1.5 to 3.5 inches fell along and south of a line from Fairfield, IA, to Galesburg, IL which resulted in some flash flooding and flooding.  Some of the higher totals were 3.30 inches 1 mile south of Kahoka, MO, 3.31 inches in Memphis, MO and 3.50 inches 6 miles west northwest of Burlington, IA. Rainfall amounts quickly tapered off to between a trace and a third of an inch across areas to the north.

Thunderstorm Wind in HENRY, IOWA
From 26-JUN-11 19:40:00 to 26-JUN-11 19:40:00 (CST-6)
Location: HILLSBORO
Magnitude: 61.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Newspaper

Wind gusts estimated to be 70 mph blew down several trees in Hillsboro, IA around 840 pm CDT June 26.

Thunderstorm Wind in VAN BUREN, IOWA
From 26-JUN-11 18:55:00 to 26-JUN-11 18:55:00 (CST-6)
Location: MILTON
Magnitude: 52.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Wind gusts estimated to be 60 mph were observed near Milton, IA at 755 pm CDT June 26.

Thunderstorm Wind in VAN BUREN, IOWA
From 26-JUN-11 18:55:00 to 26-JUN-11 18:55:00 (CST-6)
Location: MILTON
Magnitude: 61.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Emergency Manager

Wind gusts estimated to be 70 mph blew down some trees in Milton, IA at 755 pm CDT June 26.

Thunderstorm Wind in VAN BUREN, IOWA
From 26-JUN-11 19:00:00 to 26-JUN-11 19:00:00 (CST-6)
Location: CANTRIL
Magnitude: 61.00 EG
Property damage: 50.00K
Crop damage: 0.00K
Reported by: Emergency Manager

Wind gusts estimated to be 70 mph blew a tree down onto a house in Cantril, IA at 800 pm CDT June 26.

Thunderstorm Wind in VAN BUREN, IOWA
From 26-JUN-11 19:15:00 to 26-JUN-11 19:15:00 (CST-6)
Location: PITTSBURG
Magnitude: 61.00 EG
Property damage: 5.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Wind gusts estimated to be 70 mph blew a billboard over about 1 mile north of Keosauqua, IA at 815 pm CDT June 26.

Hail in VAN BUREN, IOWA
From 26-JUN-11 19:25:00 to 26-JUN-11 19:25:00 (CST-6)
Location: MT STERLING
Magnitude: 1.00 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Quarter sized hail fell about 2.5 miles east of Mount Sterling, IA at 825 pm CDT June 26.

Thunderstorm Wind in VAN BUREN, IOWA
From 26-JUN-11 19:25:00 to 26-JUN-11 19:25:00 (CST-6)
Location: FARMINGTON
Magnitude: 61.00 EG
Property damage: 25.00K
Crop damage: 0.00K
Reported by: Emergency Manager

Wind gusts estimated to be 70 mph blew a tree down onto a mobile home in Farmington, IA at 825 pm CDT June 26.

Flash Flood in VAN BUREN, IOWA
From 26-JUN-11 19:35:00 to 26-JUN-11 22:00:00 (CST-6)
Location: SELMA
Flood cause: Heavy Rain
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Emergency Manager

Heavy rains caused some flash flooding throughout Van Buren County during the evening of June 26.

Thunderstorm Wind in LEE, IOWA
From 26-JUN-11 20:00:00 to 26-JUN-11 20:00:00 (CST-6)
Location: FT MADISON
Magnitude: 52.00 EG
Property damage: 5.00K
Crop damage: 0.00K
Reported by: Law Enforcement

Wind gusts estimated to be 60 mph caused a power outage across the west side of Fort Madison, IA at 900 pm CDT June 26.

Thunderstorm Wind in KEOKUK, IOWA
From 26-JUN-11 22:15:00 to 26-JUN-11 22:15:00 (CST-6)
Location: SIGOURNEY
Magnitude: 52.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Law Enforcement

Wind gusts estimated to be 60 mph were observed in Sigourney, IA around 1115 pm CDT June 26.

Thunderstorm Wind in LEE, IOWA
From 27-JUN-11 00:15:00 to 27-JUN-11 00:15:00 (CST-6)
Location: KEOKUK
Magnitude: 65.00 EG
Property damage: 250.00K
Crop damage: 0.00K
Reported by: Emergency Manager

Wind gusts estimated to be 75 mph caused two weakened buildings to collapse in Keokuk, IA around 115 am CDT June 27.  The Pallet Building on Johnson Street and the Redemption Center Building on S 4th Street and Johnson Street collapsed.  In addition, several trees were uprooted or snapped near the base and several other large tree limbs were also blown down.  A spotter also contributed to this report.

Thunderstorm Wind in LEE, IOWA
From 27-JUN-11 00:32:00 to 27-JUN-11 00:32:00 (CST-6)
Location: KEOKUK
Magnitude: 61.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Law Enforcement

Wind gusts estimated to be 70 mph blew down several trees in Keokuk, IA at 132 am CDT June 27.

High Wind in LINN, IOWA
From 27-JUN-11 01:20:00 to 27-JUN-11 01:20:00 (CST-6)
Magnitude: 52.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Gradient wind gusts estimated to be 60 mph were observed about 1 mile south southeast of Cedar Rapids, IA around 220 am CDT June 27.

Flood in VAN BUREN, IOWA
From 27-JUN-11 05:00:00 to 27-JUN-11 11:00:00 (CST-6)
Location: LAKE SUGEMA CAMP GD
Flood cause: Heavy Rain
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Heavy rains caused the Fox River to flood the south side of Jersey Ave located about 4 miles east of Cantril, IA during the morning of June 27.  The road was impassable.

Thunderstorm Wind in HENRY, IOWA
From 26-JUN-11 20:00:00 to 26-JUN-11 20:00:00 (CST-6)
Location: WINFIELD
Magnitude: 61.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Newspaper

Wind gusts estimated to be 70 mph blew down several trees in Winfield, IA around 900 pm CDT June 26.