Numerous waves of thunderstorms affected southeast Michigan during the afternoon and evening of June 27, 2007. Severe storms developed along and ahead of a cold front, which dropped south through a very warm and humid airmass. There were numerous reports of wind damage and hail. Saginaw County received two separate rounds of severe weather, producing hail to one-inch in diameter and a number of reports of trees and power poles blown down by winds. Flooding was also a concern, as some areas were repeatedly affected by complexes of storms. Northern Shiawassee County received the worst flooding, with National Weather Service radar estimating up to six inches of rainfall in just a few hours. A golfer in northwest Detroit was struck by lightning and killed after seeking refuge under a tree.

Thunderstorm Wind in SAGINAW, MICHIGAN
From 27-JUN-07 17:35:00 to 27-JUN-07 17:35:00 (EST-5)
Location: BURT
Magnitude: 56.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

A trained spotter reported a tree 2 1/2 feet in diameter down.

Thunderstorm Wind in GENESEE, MICHIGAN
From 27-JUN-07 17:54:00 to 27-JUN-07 17:54:00 (EST-5)
Location: MONTROSE
Magnitude: 55.00 EG
Property damage: 3.00K
Crop damage: 0.00K
Reported by: Law Enforcement

Law enforcement reported power lines and two trees down in Montrose.

Flash Flood in SHIAWASSEE, MICHIGAN
From 27-JUN-07 20:00:00 to 27-JUN-07 21:00:00 (EST-5)
Location: JUDDVILLE
Flood cause: Heavy Rain
Property damage: 1.00K
Crop damage: 0.00K
Reported by: Law Enforcement

Law Enforcement reported several inches of water over a few roads in Juddville. There were no reports of any significant damage.

Hail in SAGINAW, MICHIGAN
From 27-JUN-07 14:20:00 to 27-JUN-07 14:20:00 (EST-5)
Location: FREELAND
Magnitude: 0.88 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Public

Thunderstorm Wind in GENESEE, MICHIGAN
From 27-JUN-07 19:10:00 to 27-JUN-07 19:10:00 (EST-5)
Location: LENNON
Magnitude: 55.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

A trained spotter reported two trees down.

Hail in SAGINAW, MICHIGAN
From 27-JUN-07 14:30:00 to 27-JUN-07 14:30:00 (EST-5)
Location: SAGINAW
Magnitude: 0.75 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Flash Flood in SAGINAW, MICHIGAN
From 27-JUN-07 16:55:00 to 27-JUN-07 17:55:00 (EST-5)
Location: SAGINAW
Flood cause: Heavy Rain
Property damage: 10.00K
Crop damage: 0.00K
Reported by: Trained Spotter

A trained spotter reported water 12 inches deep flowing across Interstate 75. Several cars stalled out. Total damages were estimated at roughly $10K.

Thunderstorm Wind in SAGINAW, MICHIGAN
From 27-JUN-07 14:35:00 to 27-JUN-07 14:35:00 (EST-5)
Location: SAGINAW
Magnitude: 50.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

A trained spotter reported a tree branch 5 inches in diameter down.

Thunderstorm Wind in SAGINAW, MICHIGAN
From 27-JUN-07 16:55:00 to 27-JUN-07 16:55:00 (EST-5)
Location: SAGINAW
Magnitude: 56.00 EG
Property damage: 3.00K
Crop damage: 0.00K
Reported by: Trained Spotter

A trained spotter reported numerous trees and power lines down in downtown Saginaw.

Thunderstorm Wind in MONROE, MICHIGAN
From 27-JUN-07 17:11:00 to 27-JUN-07 17:11:00 (EST-5)
Location: TEMPERANCE
Magnitude: 55.00 EG
Property damage: 3.00K
Crop damage: 0.00K
Reported by: Law Enforcement

Law enforcement reported power lines and a tree down in Temperance.

Thunderstorm Wind in BAY, MICHIGAN
From 27-JUN-07 14:32:00 to 27-JUN-07 14:32:00 (EST-5)
Location: BAY CITY
Magnitude: 54.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Department of Highways

Road Commission reported a tree down on a road.

Thunderstorm Wind in SAGINAW, MICHIGAN
From 27-JUN-07 14:40:00 to 27-JUN-07 14:40:00 (EST-5)
Location: SAGINAW
Magnitude: 50.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

A trained spotter reported a few large tree branches down.

Thunderstorm Wind in WASHTENAW, MICHIGAN
From 27-JUN-07 12:30:00 to 27-JUN-07 12:30:00 (EST-5)
Location: DEXTER
Magnitude: 52.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

A trained spotter reported trees 10 to 12 inches in diameter uprooted.

Thunderstorm Wind in WAYNE, MICHIGAN
From 27-JUN-07 13:03:00 to 27-JUN-07 13:03:00 (EST-5)
Location: WESTLAND
Magnitude: 56.00 EG
Property damage: 15.00K
Crop damage: 0.00K
Reported by: Broadcast Media

The local television stations reported a large tree uprooted on a house.

Thunderstorm Wind in WAYNE, MICHIGAN
From 27-JUN-07 13:20:00 to 27-JUN-07 13:20:00 (EST-5)
Location: DEARBORN
Magnitude: 52.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

A trained spotter reported two large tree branches down.

Thunderstorm Wind in SHIAWASSEE, MICHIGAN
From 27-JUN-07 19:10:00 to 27-JUN-07 19:10:00 (EST-5)
Location: HENDERSON
Magnitude: 55.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Law Enforcement

Law enforcement reported two trees down in Henderson.

Thunderstorm Wind in GENESEE, MICHIGAN
From 27-JUN-07 19:10:00 to 27-JUN-07 19:10:00 (EST-5)
Location: SWARTZ CREEK
Magnitude: 56.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Law Enforcement

Law enforcement reported two trees 4 feet in diameter down.

Thunderstorm Wind in WAYNE, MICHIGAN
From 27-JUN-07 12:58:00 to 27-JUN-07 12:58:00 (EST-5)
Location: WESTLAND
Magnitude: 52.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

A trained spotter estimated a 60 MPH wind gust.

Hail in SAGINAW, MICHIGAN
From 27-JUN-07 15:00:00 to 27-JUN-07 15:00:00 (EST-5)
Location: BRIDGEPORT
Magnitude: 0.75 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Hail in SHIAWASSEE, MICHIGAN
From 27-JUN-07 19:10:00 to 27-JUN-07 19:10:00 (EST-5)
Location: HENDERSON
Magnitude: 0.88 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Thunderstorm Wind in LAPEER, MICHIGAN
From 27-JUN-07 12:15:00 to 27-JUN-07 12:15:00 (EST-5)
Location: ALMONT
Magnitude: 52.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Law Enforcement

Law enforcement reported a tree down.

Hail in SAGINAW, MICHIGAN
From 27-JUN-07 14:40:00 to 27-JUN-07 14:40:00 (EST-5)
Location: SAGINAW
Magnitude: 1.00 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Lightning in WAYNE, MICHIGAN
From 27-JUN-07 12:30:00 to 27-JUN-07 12:30:00 (EST-5)
Location: DETROIT
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Broadcast Media

A golfer was struck and killed by lightning after seeking refuge under a tree at the Rogell Golf Course near 7 Mile and Lahser Roads.