Frontal boundary induced severe weather episode.

Hail in WASHINGTON, MINNESOTA
From 23-MAY-07 14:10:00 to 23-MAY-07 14:10:00 (CST-6)
Location: FOREST LAKE
Magnitude: 0.75 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Occurred at Manning Avenue and Highway 97.

Hail in WASECA, MINNESOTA
From 23-MAY-07 15:30:00 to 23-MAY-07 15:30:00 (CST-6)
Location: WASECA
Magnitude: 0.75 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Emergency Manager

Thunderstorm Wind in FARIBAULT, MINNESOTA
From 23-MAY-07 13:50:00 to 23-MAY-07 13:50:00 (CST-6)
Location: BLUE EARTH
Magnitude: 52.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Emergency Manager

Trees down.

Hail in HENNEPIN, MINNESOTA
From 23-MAY-07 13:25:00 to 23-MAY-07 13:25:00 (CST-6)
Location: MAPLE GROVE
Magnitude: 1.50 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Amateur Radio

Reported near Interstate 94 and 85th Avenue.

Thunderstorm Wind in HENNEPIN, MINNESOTA
From 23-MAY-07 13:25:00 to 23-MAY-07 13:25:00 (CST-6)
Location: GOLDEN VLY
Magnitude: 50.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Amateur Radio

Twelve inch branches down at Theodore Wirth Park.

Thunderstorm Wind in FARIBAULT, MINNESOTA
From 23-MAY-07 18:00:00 to 23-MAY-07 18:00:00 (CST-6)
Location: BRICELYN
Magnitude: 50.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: COOP Observer

Roof damage; large branches down.

Hail in HENNEPIN, MINNESOTA
From 23-MAY-07 13:23:00 to 23-MAY-07 13:30:00 (CST-6)
Location: BROOKLYN PARK
Magnitude: 2.70 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Hail of 2.7 inches in diameter was measured at the intersection of Schmitt Lake Road and Highway 169. Tennis ball size hail (2.5) was estimated at the intersection of 73rd and Zane Avenues. Golf ball size hail (1.75) was estimated in the northeast corner of Brooklyn Park at the intersection of 109th Avenue and West River Road. Nickel size hail (0.88) was reported at the corner of Zane Avenue and County Road 30. Several car dealerships commented on hail damage to vehicles.

Hail in HENNEPIN, MINNESOTA
From 23-MAY-07 13:30:00 to 23-MAY-07 13:30:00 (CST-6)
Location: CRYSTAL ARPT
Magnitude: 2.00 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Most hail was in the 1.0 to 1.5 inch category.

Hail in ANOKA, MINNESOTA
From 23-MAY-07 13:36:00 to 23-MAY-07 13:36:00 (CST-6)
Location: SPRING LAKE PARK
Magnitude: 1.00 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Hail in FREEBORN, MINNESOTA
From 23-MAY-07 16:20:00 to 23-MAY-07 16:20:00 (CST-6)
Location: HOLLANDALE
Magnitude: 0.75 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Law Enforcement

Thunderstorm Wind in HENNEPIN, MINNESOTA
From 23-MAY-07 13:10:00 to 23-MAY-07 13:10:00 (CST-6)
Location: PLYMOUTH
Magnitude: 60.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: NWS Storm Survey

A National Weather Service damage survey confirmed that the swath of damage in Plymouth was produced by a thunderstorm downburst.  Several thousands of trees, many over one foot in diameter, were toppled across Plymouth. Five people received minor injuries and were treated at a nearby hospital. Two of the injuries occurred when two construction trailers were rolled near Highway 55 and Interstate 494.  Many utility poles were also snapped in half. The roof was partially blown off a business one half mile southwest of the 494/55 intersection.  Minor roof and siding damage to homes and businesses were also reported, and several chimneys were toppled. Xcel Energy reported that 14,000 people were left without power for several hours after the storm.

Thunderstorm Wind in HENNEPIN, MINNESOTA
From 23-MAY-07 13:20:00 to 23-MAY-07 13:20:00 (CST-6)
Location: NEW HOPE
Magnitude: 52.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Eight inch diameter trees toppled at Highway 169 and Bass Lake Road.

Hail in BROWN, MINNESOTA
From 23-MAY-07 10:55:00 to 23-MAY-07 10:55:00 (CST-6)
Location: NEW ULM
Magnitude: 0.75 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Thunderstorm Wind in HENNEPIN, MINNESOTA
From 23-MAY-07 13:05:00 to 23-MAY-07 13:05:00 (CST-6)
Location: WAYZATA
Magnitude: 50.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

One foot diameter tree branches down. One quarter inch hail also reported.

Hail in HENNEPIN, MINNESOTA
From 23-MAY-07 13:15:00 to 23-MAY-07 13:15:00 (CST-6)
Location: MINNETONKA
Magnitude: 1.00 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Car windows broken, and one to two inch branches down.

Hail in HENNEPIN, MINNESOTA
From 23-MAY-07 13:15:00 to 23-MAY-07 13:15:00 (CST-6)
Location: PLYMOUTH
Magnitude: 1.00 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

One inch hail was reported one mile east of the intersection of Highway 55 and Interstate 494.

Thunderstorm Wind in HENNEPIN, MINNESOTA
From 23-MAY-07 13:25:00 to 23-MAY-07 13:25:00 (CST-6)
Location: BROOKLYN PARK
Magnitude: 50.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Large tree limbs down.

Tornado in GOODHUE, MINNESOTA
From 23-MAY-07 15:10:00 to 23-MAY-07 15:15:00 (CST-6)
Location: DENNISON
Tornado F-scale: EF0
Property damage: 0.00K
Crop damage: 0.00K
Reported by: NWS Storm Survey

NWS damage survey confirmed a weak tornado. It mostly crossed open fields, but did knock down several dozen trees, and caused minor structural damage at two farms.