Thunderstorms developed along an outflow boundary from earlier thunderstorms across east central Minnesota during the morning of Wednesday, June 12th. Earlier in the day, thunderstorms across the western and southern parts of the Twin Cities received locally 2 to 3.5 inches of rainfall in a three hour period.
By the afternoon, thunderstorms developed southwest of Mankato, and moved east-southeast across southern Blue Earth, Faribault, and Freeborn counties before moving into north central Iowa by the early evening. The most intense part of the thunderstorms occurred between Minnesota Lake, Wells and Alden, Minnesota, where severe winds, very large hail and flooding were reported. A barn, and several homes were damaged between Minnesota Lake and Wells where winds were measured above 70 mph.

Heavy Rain in FREEBORN, MINNESOTA
From 12-JUN-13 16:00:00 to 12-JUN-13 20:00:00 (CST-6)
Location: ALDEN
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Broadcast Media

A rainfall amount of 2.25 inches fell near Alden in the past 4 hours.

Heavy Rain in SIBLEY, MINNESOTA
From 12-JUN-13 05:30:00 to 12-JUN-13 09:30:00 (CST-6)
Location: ARLINGTON
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Broadcast Media

A measured rainfall total of 3.30 inches fell in a four hour period.

Heavy Rain in CARVER, MINNESOTA
From 12-JUN-13 06:00:00 to 12-JUN-13 10:00:00 (CST-6)
Location: CARVER
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Public

A measured rainfall total of 2.83 inches fell in a four hour period.

Heavy Rain in MCLEOD, MINNESOTA
From 12-JUN-13 05:00:00 to 12-JUN-13 09:00:00 (CST-6)
Location: HUTCHINSON ARPT
Property damage: 0.00K
Crop damage: 0.00K
Reported by: AWOS

A measured rainfall total of 3.23 inches fell in a four hour period at the Hutchinson Airport.

Heavy Rain in SIBLEY, MINNESOTA
From 12-JUN-13 06:00:00 to 12-JUN-13 10:00:00 (CST-6)
Location: ARLINGTON
Property damage: 0.00K
Crop damage: 0.00K
Reported by: CoCoRaHS

A measured rainfall total of 3.07 inches fell in a four hour period.

Hail in FREEBORN, MINNESOTA
From 12-JUN-13 16:03:00 to 12-JUN-13 16:03:00 (CST-6)
Location: ALDEN
Magnitude: 1.75 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: SHAVE Project

Hail in FARIBAULT, MINNESOTA
From 12-JUN-13 15:50:00 to 12-JUN-13 15:50:00 (CST-6)
Location: WELLS
Magnitude: 1.75 
Property damage: 15.00K
Crop damage: 0.00K
Reported by: SHAVE Project

There was damage to trees and broken windshields north of Wells, Minnesota.

Heavy Rain in FARIBAULT, MINNESOTA
From 12-JUN-13 16:00:00 to 12-JUN-13 20:00:00 (CST-6)
Location: MINNESOTA LAKE
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

A rainfall total of 3.37 inches occurred in a four hour period near Minnesota Lake.

Heavy Rain in SCOTT, MINNESOTA
From 12-JUN-13 06:00:00 to 12-JUN-13 10:00:00 (CST-6)
Location: SHAKOPEE
Property damage: 0.00K
Crop damage: 0.00K
Reported by: CoCoRaHS

A measured rainfall total of 2.99 inches fell in a four hour period.

Flash Flood in FARIBAULT, MINNESOTA
From 12-JUN-13 15:45:00 to 12-JUN-13 19:00:00 (CST-6)
Location: WELLS
Flood cause: Heavy Rain
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Newspaper

Several resources including trained spotters, emergency managers and the local media indicated that significant flooding occurred in northeast Faribault County. County Road 109 between Alden (Freeborn County) and Wells (Faribault County) had several areas at which one lane was closed due to water over the roadway. In addition, several farms, fields and flood prone areas had standing water for several hours after 2 to 3 inches of rain fell in a short period of time.

Hail in BLUE EARTH, MINNESOTA
From 12-JUN-13 15:25:00 to 12-JUN-13 15:35:00 (CST-6)
Location: MINNESOTA LAKE
Magnitude: 1.00 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Public

Hail in FARIBAULT, MINNESOTA
From 12-JUN-13 15:55:00 to 12-JUN-13 15:55:00 (CST-6)
Location: WELLS
Magnitude: 2.75 
Property damage: 25.00K
Crop damage: 0.00K
Reported by: SHAVE Project

There was damage to roof shingles and siding of houses, with the hail depth of a few inches.

Thunderstorm Wind in FARIBAULT, MINNESOTA
From 12-JUN-13 15:55:00 to 12-JUN-13 16:05:00 (CST-6)
Location: WELLS
Magnitude: 56.00 ES
Property damage: 25.00K
Crop damage: 0.00K
Reported by: Trained Spotter

A trained spotter, along with video coverage of the storm, had sustained severe winds lasting for 10 minutes or more. In addition to numerous trees blown down or uprooted, a barn north of Wells was destroyed.

Thunderstorm Wind in FARIBAULT, MINNESOTA
From 12-JUN-13 15:20:00 to 12-JUN-13 15:25:00 (CST-6)
Location: MINNESOTA LAKE
Magnitude: 62.00 MG
Property damage: 100.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Several large trees blew down, which damaged three homes and a garage. Power lines were also blown down due to falling trees.

Hail in FARIBAULT, MINNESOTA
From 12-JUN-13 15:25:00 to 12-JUN-13 15:25:00 (CST-6)
Location: MINNESOTA LAKE
Magnitude: 0.88 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Hail in FARIBAULT, MINNESOTA
From 12-JUN-13 16:00:00 to 12-JUN-13 16:00:00 (CST-6)
Location: WELLS
Magnitude: 1.75 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Public

Hail in FREEBORN, MINNESOTA
From 12-JUN-13 16:05:00 to 12-JUN-13 16:05:00 (CST-6)
Location: ALDEN
Magnitude: 1.75 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Public

Hail in FREEBORN, MINNESOTA
From 12-JUN-13 16:00:00 to 12-JUN-13 16:00:00 (CST-6)
Location: FREEBORN
Magnitude: 1.75 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Public

Hail in FREEBORN, MINNESOTA
From 12-JUN-13 16:15:00 to 12-JUN-13 16:15:00 (CST-6)
Location: ALDEN
Magnitude: 1.25 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Fire Department/Rescue

Hail in FREEBORN, MINNESOTA
From 12-JUN-13 16:10:00 to 12-JUN-13 16:10:00 (CST-6)
Location: ALDEN
Magnitude: 1.75 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Public

Hail in FREEBORN, MINNESOTA
From 12-JUN-13 16:20:00 to 12-JUN-13 16:20:00 (CST-6)
Location: ARMSTRONG
Magnitude: 1.00 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Public

Thunderstorm Wind in BLUE EARTH, MINNESOTA
From 12-JUN-13 14:55:00 to 12-JUN-13 14:55:00 (CST-6)
Location: VERNON CENTER
Magnitude: 56.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Amateur Radio

Large trees were blown down on the south side of Vernon Center.

Thunderstorm Wind in BLUE EARTH, MINNESOTA
From 12-JUN-13 15:15:00 to 12-JUN-13 15:15:00 (CST-6)
Location: MAPLETON
Magnitude: 52.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Amateur Radio

Large tree branches were blown down near County Road 30 on the east side of Mapleton, including downed power lines.

Thunderstorm Wind in FREEBORN, MINNESOTA
From 12-JUN-13 16:20:00 to 12-JUN-13 16:20:00 (CST-6)
Location: ALDEN
Magnitude: 61.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Emergency Manager

A semi-trailer was blown over on Interstate 90 near Alden.

Thunderstorm Wind in FREEBORN, MINNESOTA
From 12-JUN-13 16:21:00 to 12-JUN-13 16:21:00 (CST-6)
Location: ALDEN
Magnitude: 56.00 EG
Property damage: 10.00K
Crop damage: 0.00K
Reported by: Public

Several trees were blown down in North Park, plus a garage was blown down on County Road 51, east of Alden.

Hail in FARIBAULT, MINNESOTA
From 12-JUN-13 15:57:00 to 12-JUN-13 15:57:00 (CST-6)
Location: WELLS
Magnitude: 2.75 
Property damage: 100.00K
Crop damage: 0.00K
Reported by: Public

Baseball size hail caused damage to area roofs in Wells, Minnesota.

Hail in FREEBORN, MINNESOTA
From 12-JUN-13 16:05:00 to 12-JUN-13 16:05:00 (CST-6)
Location: FREEBORN
Magnitude: 1.75 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Public

Flash Flood in FREEBORN, MINNESOTA
From 12-JUN-13 16:00:00 to 12-JUN-13 19:00:00 (CST-6)
Location: ALDEN
Flood cause: Heavy Rain
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Newspaper

Several resources including trained spotters, emergency managers and the local media indicated that significant flooding occurred in western Freeborn County. County Road 109 between Alden (Freeborn County) and Wells (Faribault County) had several areas at which one lane was closed due to water over the roadway. In addition, several farms, fields and flood prone areas had standing water for several hours after 2 to 3 inches of rain fell in a short period of time.