The afternoon of Sunday, June 10th, a line of thunderstorms developed along a cold front across western Minnesota, and quickly became severe as they moved to the east-northeast across central and southern Minnesota.  Initially, large hail was the main hazard, but it evolved into severe downburst winds across eastern Minnesota as this line moved to the east.  There was one confirmed report of a tornado in northern Le Sueur County and southern Scott County.
One area that had significant damage was across southern Ramsay County near Highland Park where numerous trees and large limbs were blown down. Some of the blown down tree limbs caused damage to cars.  Thousands of people lost electrical power as trees and power lines were toppled by severe thunderstorms that rattled through the southern metro area.  Lightning from these thunderstorms across eastern Minnesota struck a home in Apple Valley, and a pole barn in Washington County.

Thunderstorm Wind in HENNEPIN, MINNESOTA
From 10-JUN-12 19:02:00 to 10-JUN-12 19:02:00 (CST-6)
Location: MAPLE GROVE
Magnitude: 52.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Public

A large tree was uprooted near Highway 101 and Gladstone Blvd in the northwest section of Maple Grove.

Tornado in SCOTT, MINNESOTA
From 10-JUN-12 19:16:00 to 10-JUN-12 19:20:00 (CST-6)
Location: BLAKELEY
Tornado F-scale: EF0
Property damage: 250.00K
Crop damage: 0.00K
Reported by: NWS Storm Survey

An EF-0 tornado continued from Le Sueur County, into Scott County and moved northeast for approximately 1.7 miles before dissipating 4.5 miles south-southeast of Belle Plaine. The tornado had a maximum width of 50 yards. A farm near Henderson sustained heavy damage, with a 60,000 bushel grain bin destroyed and at least one other damaged, plus a workshop roof was blown off, with rafters and support beams cracked in a storage shed.

Thunderstorm Wind in ANOKA, MINNESOTA
From 10-JUN-12 19:00:00 to 10-JUN-12 19:00:00 (CST-6)
Location: ST FRANCIS
Magnitude: 52.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Emergency Manager

A tree was blown down in St. Francis, and blocked a road.

Hail in STEARNS, MINNESOTA
From 10-JUN-12 16:32:00 to 10-JUN-12 16:32:00 (CST-6)
Location: AVON
Magnitude: 1.00 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Hail in BENTON, MINNESOTA
From 10-JUN-12 16:54:00 to 10-JUN-12 16:54:00 (CST-6)
Location: RICE
Magnitude: 1.00 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Thunderstorm Wind in STEARNS, MINNESOTA
From 10-JUN-12 16:50:00 to 10-JUN-12 16:50:00 (CST-6)
Location: ST STEPHEN
Magnitude: 52.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Two trees were blown down across County Road 1.

Thunderstorm Wind in STEARNS, MINNESOTA
From 10-JUN-12 16:52:00 to 10-JUN-12 16:52:00 (CST-6)
Location: LUXEMBURG
Magnitude: 56.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Several trees were uprooted at the intersection of Highway 15, and County Road 47.

Thunderstorm Wind in MCLEOD, MINNESOTA
From 10-JUN-12 17:05:00 to 10-JUN-12 17:05:00 (CST-6)
Location: FERNANDO
Magnitude: 61.00 EG
Property damage: 10.00K
Crop damage: 0.00K
Reported by: Law Enforcement

Several trees were blown down, along with a metal shed, and power poles.

Thunderstorm Wind in MORRISON, MINNESOTA
From 10-JUN-12 16:06:00 to 10-JUN-12 16:06:00 (CST-6)
Location: LINCOLN
Magnitude: 52.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Public

Power lines were blown down at Shamineau Lake.

Thunderstorm Wind in MCLEOD, MINNESOTA
From 10-JUN-12 17:10:00 to 10-JUN-12 17:10:00 (CST-6)
Location: BROWNTON
Magnitude: 56.00 EG
Property damage: 0.50K
Crop damage: 0.00K
Reported by: Law Enforcement

Several trees were blown down, along with a fence in a baseball field, and two large pine trees.

Thunderstorm Wind in MILLE LACS, MINNESOTA
From 10-JUN-12 17:37:00 to 10-JUN-12 17:37:00 (CST-6)
Location: VINELAND
Magnitude: 56.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Law Enforcement

Multiple trees were blown down in Kathio State Park.

Thunderstorm Wind in BLUE EARTH, MINNESOTA
From 10-JUN-12 18:35:00 to 10-JUN-12 18:35:00 (CST-6)
Location: LAKE CRYSTAL
Magnitude: 52.00 EG
Property damage: 0.25K
Crop damage: 0.00K
Reported by: Law Enforcement

Several large tree limbs were blown down, with some damage to bleachers at the city park.

Thunderstorm Wind in BLUE EARTH, MINNESOTA
From 10-JUN-12 18:35:00 to 10-JUN-12 18:35:00 (CST-6)
Location: GARDEN CITY
Magnitude: 52.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Several large tree branches were blown down.

Thunderstorm Wind in LE SUEUR, MINNESOTA
From 10-JUN-12 19:04:00 to 10-JUN-12 19:04:00 (CST-6)
Location: LE SUEUR
Magnitude: 52.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Several large tree branches were blown down.

Thunderstorm Wind in ISANTI, MINNESOTA
From 10-JUN-12 19:05:00 to 10-JUN-12 19:05:00 (CST-6)
Location: CROWN
Magnitude: 52.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Law Enforcement

Several large tree branches were blown down at the intersection of Highway 47, and County Road 53.

Thunderstorm Wind in HENNEPIN, MINNESOTA
From 10-JUN-12 19:15:00 to 10-JUN-12 19:15:00 (CST-6)
Location: MAPLE GROVE
Magnitude: 52.00 EG
Property damage: 0.50K
Crop damage: 0.00K
Reported by: Emergency Manager

A power line and large tree were blown down at Fernbrook Lane and 129th Ave.

Thunderstorm Wind in HENNEPIN, MINNESOTA
From 10-JUN-12 19:16:00 to 10-JUN-12 19:16:00 (CST-6)
Location: MINNETONKA BEACH
Magnitude: 52.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Emergency Manager

A tree and power line were blown down on Shoreline Drive.

Thunderstorm Wind in HENNEPIN, MINNESOTA
From 10-JUN-12 19:17:00 to 10-JUN-12 19:17:00 (CST-6)
Location: MINNETONKA BEACH
Magnitude: 52.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Emergency Manager

Several power lines were blown down near Shadywood Road.

Thunderstorm Wind in CARVER, MINNESOTA
From 10-JUN-12 19:25:00 to 10-JUN-12 19:25:00 (CST-6)
Location: GOTHA
Magnitude: 52.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Law Enforcement

A large tree was blown down near County Road 50 and 53.

Thunderstorm Wind in LE SUEUR, MINNESOTA
From 10-JUN-12 19:14:00 to 10-JUN-12 19:14:00 (CST-6)
Location: ST THOMAS
Magnitude: 52.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

A large tree was blown down near Highway 19.

Thunderstorm Wind in RENVILLE, MINNESOTA
From 10-JUN-12 15:52:00 to 10-JUN-12 15:52:00 (CST-6)
Location: OLIVIA MUNI ARPT
Magnitude: 51.00 MG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: AWOS

Thunderstorm Wind in SCOTT, MINNESOTA
From 10-JUN-12 19:27:00 to 10-JUN-12 19:27:00 (CST-6)
Location: NEW PRAGUE
Magnitude: 50.00 MG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Mesonet

Thunderstorm Wind in WASHINGTON, MINNESOTA
From 10-JUN-12 20:13:00 to 10-JUN-12 20:13:00 (CST-6)
Location: MAHTOMEDI
Magnitude: 56.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Law Enforcement

Several trees were blown down, with numerous reports of power outages in the area.

Thunderstorm Wind in FREEBORN, MINNESOTA
From 10-JUN-12 19:38:00 to 10-JUN-12 19:39:00 (CST-6)
Location: CONGER
Magnitude: 63.00 MG
Property damage: 50.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Severe winds caused a roof of a home to blow off, along with a large grain bin destroyed.

Thunderstorm Wind in WASHINGTON, MINNESOTA
From 10-JUN-12 20:27:00 to 10-JUN-12 20:27:00 (CST-6)
Location: STILLWATER
Magnitude: 56.00 EG
Property damage: 5.00K
Crop damage: 0.00K
Reported by: Law Enforcement

Several trees and power lines were blown down in the area.

Thunderstorm Wind in DAKOTA, MINNESOTA
From 10-JUN-12 19:55:00 to 10-JUN-12 20:00:00 (CST-6)
Location: FARMINGTON
Magnitude: 56.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Law Enforcement

Several trees were blown down across western Dakota County which included the cities of Lakeville, and Farmington.

Thunderstorm Wind in HENNEPIN, MINNESOTA
From 10-JUN-12 19:46:00 to 10-JUN-12 19:46:00 (CST-6)
Location: MOUND
Magnitude: 52.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Law Enforcement

A large tree was blown down on Highway 7, east of County Road 44.

Thunderstorm Wind in RAMSEY, MINNESOTA
From 10-JUN-12 19:55:00 to 10-JUN-12 20:00:00 (CST-6)
Location: ST PAUL
Magnitude: 61.00 EG
Property damage: 50.00K
Crop damage: 0.00K
Reported by: Public

Numerous large trees and tree limbs were blown down in a large swath from near the Highland Park area, northeast toward Randolph Avenue. In addition, some of the trees landed on vehicles and caused damage.

Lightning in DAKOTA, MINNESOTA
From 10-JUN-12 22:05:00 to 10-JUN-12 22:05:00 (CST-6)
Location: EAGAN
Property damage: 300.00K
Crop damage: 0.00K
Reported by: Newspaper

A lightning strike hit a gas meter on one home on 131th Street Southwest. The lightning traveled along the gas line, skipping one house and igniting another house nearby.
One of the homes suffered significant damage as a result of the fire. There were no injuries in the fire, and one other house suffered minor damage.

Lightning in WASHINGTON, MINNESOTA
From 10-JUN-12 20:45:00 to 10-JUN-12 20:45:00 (CST-6)
Location: WITHROW
Property damage: 350.00K
Crop damage: 0.00K
Reported by: Newspaper

The Stillwater Fire Department spent more than three hours extinguishing a pole barn fire on the 12000 block of Lockridge Avenue North Sunday night due to a lightning strike. Damage to a 40-foot-by-50-foot pole barn was estimated at $350,000.
Fire crews worked on the fire until 1:30 a.m. Monday. No injuries were reported.

Hail in STEARNS, MINNESOTA
From 10-JUN-12 14:55:00 to 10-JUN-12 14:55:00 (CST-6)
Location: ST JOSEPH
Magnitude: 0.88 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Thunderstorm Wind in FREEBORN, MINNESOTA
From 10-JUN-12 19:50:00 to 10-JUN-12 19:50:00 (CST-6)
Location: CLARKS GROVE
Magnitude: 52.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Emergency Manager

Power was lost in the town of Clarks Grove due to a severe wind gust.

Thunderstorm Wind in SCOTT, MINNESOTA
From 10-JUN-12 19:23:00 to 10-JUN-12 19:23:00 (CST-6)
Location: JORDAN
Magnitude: 56.00 EG
Property damage: 5.00K
Crop damage: 0.00K
Reported by: Emergency Manager

Roof damage occurred to a home southwest of Jordan, along with numerous trees blown down.

Hail in STEARNS, MINNESOTA
From 10-JUN-12 16:02:00 to 10-JUN-12 16:02:00 (CST-6)
Location: ST MARTIN
Magnitude: 0.75 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Tornado in LE SUEUR, MINNESOTA
From 10-JUN-12 19:15:00 to 10-JUN-12 19:16:00 (CST-6)
Location: HENDERSON STATION
Tornado F-scale: EF0
Property damage: 5.00K
Crop damage: 0.00K
Reported by: NWS Storm Survey

An EF-0 tornado formed approximately 6.5 miles south of Belle Plaine...just south of the Le Sueur, Scott County line, and moved northeast into Scott County. Damage was associated with down trees, some shingles blown off, plus a chimney toppled at a house. Maximum width was 50 yards.