A couple rounds of severe thunderstorms rolled across northeast Iowa during the afternoon and evening of June 12th. These storms developed ahead of an area of low pressure that was moving east across the Upper Midwest. The storms primarily produced high winds that blew down trees near Marquette (Clayton County) in the afternoon and around Nora Springs and Marble Rock (Floyd County) in the evening. Some quarter sized hail also fell in Oran (Fayette County).

Thunderstorm Wind in FLOYD, IOWA
From 12-JUN-13 19:22:00 to 12-JUN-13 19:22:00 (CST-6)
Location: AUREOLA
Magnitude: 50.00 EG
Property damage: 1.00K
Crop damage: 0.00K
Reported by: Law Enforcement

Trees were blown down northwest of Marble Rock.

Hail in FAYETTE, IOWA
From 12-JUN-13 19:18:00 to 12-JUN-13 19:18:00 (CST-6)
Location: ORAN
Magnitude: 1.00 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Emergency Manager

Quarter sized hail fell in Oran.

Flash Flood in MITCHELL, IOWA
From 12-JUN-13 20:30:00 to 12-JUN-13 22:30:00 (CST-6)
Location: NEW HAVEN
Flood cause: Heavy Rain
Property damage: 0.00K
Crop damage: 0.00K
Reported by: 911 Call Center

Heavy rain caused the Little Cedar River to rise rapidly and produce flooding that closed roads east of Orchard.

Funnel Cloud in CLAYTON, IOWA
From 12-JUN-13 15:15:00 to 12-JUN-13 15:15:00 (CST-6)
Location: GUTTENBURG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Law Enforcement

A funnel cloud was sighted in Guttenberg.

Thunderstorm Wind in FLOYD, IOWA
From 12-JUN-13 18:03:00 to 12-JUN-13 18:03:00 (CST-6)
Location: FLOYD CROSSING
Magnitude: 50.00 EG
Property damage: 2.00K
Crop damage: 0.00K
Reported by: Fire Department/Rescue

Trees were blown down just northwest of Charles City.

Flash Flood in FLOYD, IOWA
From 12-JUN-13 20:30:00 to 12-JUN-13 22:30:00 (CST-6)
Location: CARRVILLE
Flood cause: Heavy Rain
Property damage: 80.00K
Crop damage: 0.00K
Reported by: Emergency Manager

Heavy rain across Floyd County caused flash flooding to occur at numerous locations. Water covered some roads near Floyd causing some washouts. Numerous roads became impassable with washouts in and near Nora Springs and roads on the east side of Charles City also became covered with water. The Shell Rock River topped the levee in Nora Springs washing away a 40 foot section of the levee.

Thunderstorm Wind in CLAYTON, IOWA
From 12-JUN-13 15:00:00 to 12-JUN-13 15:02:00 (CST-6)
Location: MARQUETTE
Magnitude: 50.00 EG
Property damage: 3.00K
Crop damage: 0.00K
Reported by: 911 Call Center

Trees were blown down between Marquette and McGregor with at least one of these trees going down on a power line. Other trees were blown down just north of Marquette on to State Highway 76.

Thunderstorm Wind in FLOYD, IOWA
From 12-JUN-13 19:11:00 to 12-JUN-13 19:11:00 (CST-6)
Location: NORA SPGS
Magnitude: 51.00 MG
Property damage: 4.00K
Crop damage: 0.00K
Reported by: Fire Department/Rescue

A wind gust of 59 mph was measured in Nora Springs which blew down numerous trees and power lines with one tree landing on a garage.

Flood in FLOYD, IOWA
From 13-JUN-13 08:45:00 to 13-JUN-13 17:00:00 (CST-6)
Location: CHARLES CITY
Flood cause: Heavy Rain
Property damage: 0.00K
Crop damage: 0.00K
Reported by: River/Stream Gage

Runoff from heavy rain pushed the Cedar River out of its banks in Charles City. The river crested less than a half foot above the flood stage at 12.39 feet.