On the evening of Wednesday, June 21st, rapid thunderstorm development occurred across the southern two tiers of counties in southeast Michigan. The strongest storms were focused along the leading edge of a very unstable airmass associated with a warm front.  As the storms interacted with the surface warm front, the storms began to immediately rotate. Several circulations were noted at any given time. One tornado, rated at F0 intensity, touched down near Addison in Lenawee County. The severe thunderstorms resulted in a mix of high wind and large hail, with several reports of hail the size of golf balls. In addition, the warm front remained nearly stationary through much of the event, which resulted in echo training and flash flooding across Lenawee and Monroe counties.

Thunderstorm Wind in MACOMB, MICHIGAN
From 21-JUN-06 21:09:00 to 21-JUN-06 21:09:00 (EST)
Location: WARREN
Magnitude: 65 MG
Reported by: TRAINED SPOTTER

Trained spotter measured a wind gust of 75 MPH.

Hail in LENAWEE, MICHIGAN
From 21-JUN-06 19:50:00 to 21-JUN-06 19:50:00 (EST)
Location: ADRIAN
Magnitude: 0.75 
Reported by: AMATEUR RADIO

Hail in LENAWEE, MICHIGAN
From 21-JUN-06 17:13:00 to 21-JUN-06 17:13:00 (EST)
Location: ADRIAN
Magnitude: 1.75 
Reported by: TRAINED SPOTTER

Hail in LENAWEE, MICHIGAN
From 21-JUN-06 17:20:00 to 21-JUN-06 17:20:00 (EST)
Location: TECUMSEH
Magnitude: 0.88 
Reported by: TRAINED SPOTTER

Hail in LENAWEE, MICHIGAN
From 21-JUN-06 17:28:00 to 21-JUN-06 17:28:00 (EST)
Location: TECUMSEH
Magnitude: 1.25 
Reported by: TRAINED SPOTTER

Hail in LENAWEE, MICHIGAN
From 21-JUN-06 17:32:00 to 21-JUN-06 17:32:00 (EST)
Location: TECUMSEH
Magnitude: 1.50 
Reported by: LAW ENFORCEMENT

Lightning in LENAWEE, MICHIGAN
From 21-JUN-06 16:54:00 to 21-JUN-06 16:54:00 (EST)
Location: CLAYTON
Property damage: 10K
Reported by: NEWSPAPER

Lightning struck a home on South Street in Clayton. No injuries were reported. The details of the damages are unknown and the value assigned is a rough estimate.

Thunderstorm Wind in LENAWEE, MICHIGAN
From 21-JUN-06 17:23:00 to 21-JUN-06 17:23:00 (EST)
Location: BRITTON
Magnitude: 54 EG
Reported by: TRAINED SPOTTER

Trained spotter reported a tree 4 feet in diameter blown down.

Hail in LENAWEE, MICHIGAN
From 21-JUN-06 17:23:00 to 21-JUN-06 17:23:00 (EST)
Location: ADRIAN
Magnitude: 1.00 
Reported by: TRAINED SPOTTER

Thunderstorm Wind in LENAWEE, MICHIGAN
From 21-JUN-06 16:54:00 to 21-JUN-06 16:54:00 (EST)
Location: CLAYTON
Magnitude: 55 EG
Property damage: 25K
Reported by: NEWSPAPER

A local newspaper included a picture of a collapsed section of the rear wall of a 125 year old two-story brick building located at Clayton Crossing. The damage to the building was roughly estimated at $40K. The fire chief said the building was a safety hazard and would need to be demolished.

Lightning in LENAWEE, MICHIGAN
From 21-JUN-06 16:54:00 to 21-JUN-06 16:54:00 (EST)
Location: CLAYTON
Property damage: 10K
Reported by: NEWSPAPER

Lightning struck a home on M-34 near Posey Lake. No injuries were reported. The details of the damages are unknown and the value assigned is a rough estimate.

Hail in LENAWEE, MICHIGAN
From 21-JUN-06 17:52:00 to 21-JUN-06 17:52:00 (EST)
Location: FAIRFIELD
Magnitude: 1.00 
Reported by: TRAINED SPOTTER

Hail in MONROE, MICHIGAN
From 21-JUN-06 17:50:00 to 21-JUN-06 17:50:00 (EST)
Location: PETERSBURG
Magnitude: 1.75 
Reported by: LAW ENFORCEMENT

Thunderstorm Wind in LENAWEE, MICHIGAN
From 21-JUN-06 18:00:00 to 21-JUN-06 18:00:00 (EST)
Location: ADRIAN
Magnitude: 55 EG
Property damage: 5K
Reported by: NEWSPAPER

A local newspaper included a picture of a giant pine tree at least 5 feet in diameter blown down in West Park in Adrian.

Lightning in WASHTENAW, MICHIGAN
From 21-JUN-06 04:45:00 to 21-JUN-06 04:45:00 (EST)
Location: ANN ARBOR
Property damage: 200K
Reported by: NEWSPAPER

A lightning strike tore a large hole in the roof of an upscale home, causing extensive damage. Much of the upstairs portion of the home was destroyed. Total Property damage was estimated at $200K based on pictures included in the newspaper.

Lightning in OAKLAND, MICHIGAN
From 21-JUN-06 07:10:00 to 21-JUN-06 07:10:00 (EST)
Location: AUBURN HGTS
Property damage: 1K
Reported by: NEWSPAPER

Lightning struck a tree 150 feet from a home, causing pictures to fly off the walls and the television to explode.

Lightning in ST. CLAIR, MICHIGAN
From 21-JUN-06 10:00:00 to 21-JUN-06 10:00:00 (EST)
Location: PORT HURON
Property damage: 2K
Reported by: NEWSPAPER

A local newspaper reported that a utility pole was struck by lightning on Lakeshore Road.

Lightning in MONROE, MICHIGAN
From 21-JUN-06 18:20:00 to 21-JUN-06 18:20:00 (EST)
Location: MONROE
Property damage: 75K
Reported by: NEWSPAPER

Lightning struck a home and a fire smoldered for 3 hours before erupting into a full blown fire. The home and the family's contents sustained heavy water, smoke and heat damage. No injuries were sustained. Total property damage was roughly estimated at 75K based on pictures included in the newspaper.

Lightning in OAKLAND, MICHIGAN
From 21-JUN-06 10:30:00 to 21-JUN-06 10:30:00 (EST)
Location: TROY
Property damage: 30K
Reported by: NEWSPAPER

Lightning struck a home, sparking a full blown fire. The fire consumed the attached garage of the tri-level home and extended into the attic. Property damage was roughly estimated at $30K based on pictures included in the newspaper.

Lightning in MACOMB, MICHIGAN
From 21-JUN-06 09:00:00 to 21-JUN-06 09:00:00 (EST)
Location: UTICA
Property damage: 10K
Reported by: NEWSPAPER

Lightning struck a home, destroying the chimney. Damage to the chimney was estimated at $10K.

Hail in MONROE, MICHIGAN
From 21-JUN-06 17:50:00 to 21-JUN-06 17:50:00 (EST)
Location: DUNDEE
Magnitude: 1.75 
Reported by: LAW ENFORCEMENT

Lightning in OAKLAND, MICHIGAN
From 21-JUN-06 10:35:00 to 21-JUN-06 10:35:00 (EST)
Location: TROY
Property damage: 15K
Reported by: NEWSPAPER

One family member suffered minor injuries related directly to a lightning strike that created flying glass when the fireplace door exploded. There was no fire but the chimney was destroyed and the family room and kitchen were also damaged. Property damage was roughly estimated at $15K.

Thunderstorm Wind in MONROE, MICHIGAN
From 21-JUN-06 17:50:00 to 21-JUN-06 17:50:00 (EST)
Location: DUNDEE
Magnitude: 54 EG
Property damage: 40K
Reported by: NWS STORM SURVEY

NWS storm survey reported a barn destroyed and numerous trees down. Wind gusts estimated to 65 MPH. Property damage estimated at $30K. Tree damage estimated at $10K.

Thunderstorm Wind in MONROE, MICHIGAN
From 21-JUN-06 17:55:00 to 21-JUN-06 17:55:00 (EST)
Location: LAMBERTVILLE
Magnitude: 54 EG
Property damage: 5K
Reported by: TRAINED SPOTTER

Trained spotter reported numerous trees down.

Thunderstorm Wind in MONROE, MICHIGAN
From 21-JUN-06 17:58:00 to 21-JUN-06 17:58:00 (EST)
Location: TEMPERANCE
Magnitude: 54 EG
Property damage: 65K
Reported by: NWS STORM SURVEY

NWS storm survey reported a 40 foot by 40 foot roof section blown off the Bedford High School gymnasium. Numerous trees were also blown down in the area. The damage to the roof was so extensive that the entire roof had to be replaced, costing the school approximately $65K.

Thunderstorm Wind in LENAWEE, MICHIGAN
From 21-JUN-06 18:03:00 to 21-JUN-06 18:03:00 (EST)
Location: ONSTED
Magnitude: 52 EG
Property damage: 5K
Reported by: LAW ENFORCEMENT

Law enforcement reported a tree blown down on a vacant trailer.

Thunderstorm Wind in MONROE, MICHIGAN
From 21-JUN-06 17:50:00 to 21-JUN-06 17:50:00 (EST)
Location: IDA
Magnitude: 51 EG
Reported by: TRAINED SPOTTER

Trained spotter estimated a wind gust to 60 MPH.

Thunderstorm Wind in LENAWEE, MICHIGAN
From 21-JUN-06 17:55:00 to 21-JUN-06 17:55:00 (EST)
Location: ADRIAN
Magnitude: 51 EG
Property damage: 2K
Reported by: LAW ENFORCEMENT

Law enforcement reported power pole blown down.

Thunderstorm Wind in LENAWEE, MICHIGAN
From 21-JUN-06 17:58:00 to 21-JUN-06 17:58:00 (EST)
Location: ADRIAN
Magnitude: 50 EG
Reported by: LAW ENFORCEMENT

Law enforcement reported tree limbs blown down.

Thunderstorm Wind in LENAWEE, MICHIGAN
From 21-JUN-06 18:11:00 to 21-JUN-06 18:11:00 (EST)
Location: ADRIAN
Magnitude: 52 EG
Reported by: LAW ENFORCEMENT

Law enforcement reported a tree blown down.

Thunderstorm Wind in LENAWEE, MICHIGAN
From 21-JUN-06 18:06:00 to 21-JUN-06 18:06:00 (EST)
Location: ADRIAN
Magnitude: 52 EG
Reported by: LAW ENFORCEMENT

Law enforcement reported a tree blown down onto the highway.

Thunderstorm Wind in LENAWEE, MICHIGAN
From 21-JUN-06 18:04:00 to 21-JUN-06 18:04:00 (EST)
Location: TECUMSEH
Magnitude: 52 EG
Property damage: 2.5K
Reported by: LAW ENFORCEMENT

Law enforcement reported power lines and trees down.

Thunderstorm Wind in LENAWEE, MICHIGAN
From 21-JUN-06 18:16:00 to 21-JUN-06 18:16:00 (EST)
Location: PALMYRA
Magnitude: 52 EG
Reported by: NWS STORM SURVEY

NWS storm survey reported trees down.

Hail in MACOMB, MICHIGAN
From 21-JUN-06 21:09:00 to 21-JUN-06 21:09:00 (EST)
Location: WARREN
Magnitude: 0.88 
Reported by: TRAINED SPOTTER

Thunderstorm Wind in LENAWEE, MICHIGAN
From 21-JUN-06 18:00:00 to 21-JUN-06 18:00:00 (EST)
Location: ADRIAN
Magnitude: 55 EG
Property damage: 30K
Reported by: NEWSPAPER

A local newspaper reported that a roof was blown off a house in Adrian. Property damage was roughly estimated at $30K.