The last day of June and into the first day of July, saw a line of severe storms form out over the plains that quickly raced east across Iowa, Southern Wisconsin, Northern Illinois, Northern Indiana, and into Southern Lower Michigan.  Southeast Michigan saw damaging winds move through between 2:30 a.m. and 5:30 a.m. on the morning of July 1st.  Southwestern Oakland, southeastern Livingston, and parts of Washtenaw counties saw the most extensive damage as numerous trees and power lines were taken down.  The highest wind gust was reported in Wixom at 74 mph.  These storms were classified as a derecho by the Storm Prediction Center (SPC).

Thunderstorm Wind in ST. CLAIR, MICHIGAN
From 01-JUL-14 03:21:00 to 01-JUL-14 03:21:00 (EST-5)
Location: MARINE CITY
Magnitude: 50.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Twelve inch diameter tree limb blown down.

Thunderstorm Wind in ST. CLAIR, MICHIGAN
From 01-JUL-14 03:21:00 to 01-JUL-14 03:21:00 (EST-5)
Location: ST CLAIR
Magnitude: 50.00 EG
Property damage: 3.00K
Crop damage: 0.00K
Reported by: State Official

Downed wires.

Thunderstorm Wind in WASHTENAW, MICHIGAN
From 01-JUL-14 02:10:00 to 01-JUL-14 02:10:00 (EST-5)
Location: ANN ARBOR ARPT
Magnitude: 52.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

One large tree and tree limbs blown down.

Thunderstorm Wind in GENESEE, MICHIGAN
From 01-JUL-14 02:16:00 to 01-JUL-14 02:16:00 (EST-5)
Location: GRAND BLANC
Magnitude: 50.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: NWS Employee

Two eight to ten inch tree limbs down, along with several three to four inch limbs.

Thunderstorm Wind in OAKLAND, MICHIGAN
From 01-JUL-14 02:15:00 to 01-JUL-14 02:15:00 (EST-5)
Location: OAKLEY PARK
Magnitude: 54.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: NWS Employee

A large willow tree was blown down, along with one large tree uprooted.

Thunderstorm Wind in WASHTENAW, MICHIGAN
From 01-JUL-14 02:11:00 to 01-JUL-14 02:11:00 (EST-5)
Location: GEDDES
Magnitude: 52.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Large tree reported down.

Thunderstorm Wind in WASHTENAW, MICHIGAN
From 01-JUL-14 02:14:00 to 01-JUL-14 02:14:00 (EST-5)
Location: YPSILANTI
Magnitude: 50.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Four inch diameter tree limb reported down.

Thunderstorm Wind in OAKLAND, MICHIGAN
From 01-JUL-14 02:15:00 to 01-JUL-14 02:15:00 (EST-5)
Location: COMMERCE
Magnitude: 52.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Law Enforcement

Numerous large tree limbs reported down.

Thunderstorm Wind in WAYNE, MICHIGAN
From 01-JUL-14 02:15:00 to 01-JUL-14 02:15:00 (EST-5)
Location: NANKIN MILLS
Magnitude: 50.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Public

Two twelve inch diameter tree limbs down.

Thunderstorm Wind in MACOMB, MICHIGAN
From 01-JUL-14 02:53:00 to 01-JUL-14 02:53:00 (EST-5)
Location: MT CLEMENS
Magnitude: 52.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: 911 Call Center

Tree reported down.

Thunderstorm Wind in MACOMB, MICHIGAN
From 01-JUL-14 02:51:00 to 01-JUL-14 02:51:00 (EST-5)
Location: MT CLEMENS
Magnitude: 50.00 EG
Property damage: 5.00K
Crop damage: 0.00K
Reported by: 911 Call Center

Downed wires and transformer.

Thunderstorm Wind in ST. CLAIR, MICHIGAN
From 01-JUL-14 02:59:00 to 01-JUL-14 02:59:00 (EST-5)
Location: BROCKWAY
Magnitude: 52.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: 911 Call Center

Tree reported blown down.

Thunderstorm Wind in LENAWEE, MICHIGAN
From 01-JUL-14 01:30:00 to 01-JUL-14 01:30:00 (EST-5)
Location: CEMENT CITY
Magnitude: 50.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Five to six inch diameter trees limb reported down.

Thunderstorm Wind in WASHTENAW, MICHIGAN
From 01-JUL-14 01:45:00 to 01-JUL-14 01:45:00 (EST-5)
Location: SYLVAN
Magnitude: 50.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Public

Numerous large tree limbs reported down.

Thunderstorm Wind in WASHTENAW, MICHIGAN
From 01-JUL-14 01:50:00 to 01-JUL-14 01:50:00 (EST-5)
Location: LIMA
Magnitude: 52.00 EG
Property damage: 5.00K
Crop damage: 0.00K
Reported by: Broadcast Media

Trees and power line reported down.

Thunderstorm Wind in OAKLAND, MICHIGAN
From 01-JUL-14 02:35:00 to 01-JUL-14 02:35:00 (EST-5)
Location: ROCHESTER HILLS
Magnitude: 52.00 EG
Property damage: 5.00K
Crop damage: 0.00K
Reported by: Law Enforcement

Large tree blown down onto house.

Thunderstorm Wind in WAYNE, MICHIGAN
From 01-JUL-14 02:16:00 to 01-JUL-14 02:16:00 (EST-5)
Location: WESTMORE
Magnitude: 50.00 EG
Property damage: 3.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Downed power lines.

Thunderstorm Wind in MACOMB, MICHIGAN
From 01-JUL-14 02:42:00 to 01-JUL-14 02:42:00 (EST-5)
Location: STERLING HGTS
Magnitude: 56.00 EG
Property damage: 5.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Three large trees blown down, one landing on a vehicle.

Thunderstorm Wind in WASHTENAW, MICHIGAN
From 01-JUL-14 01:45:00 to 01-JUL-14 01:45:00 (EST-5)
Location: CHELSEA
Magnitude: 56.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Emergency Manager

Emergency manager estimated a 65 mph thunderstorm wind gust.

Thunderstorm Wind in WAYNE, MICHIGAN
From 01-JUL-14 02:14:00 to 01-JUL-14 02:14:00 (EST-5)
Location: NORTHVILLE
Magnitude: 56.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Spotter estimated a 65 mph thunderstorm wind gust.

Thunderstorm Wind in OAKLAND, MICHIGAN
From 01-JUL-14 02:10:00 to 01-JUL-14 02:10:00 (EST-5)
Location: WIXOM
Magnitude: 56.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Two large trees blown down blocking road.

Thunderstorm Wind in GENESEE, MICHIGAN
From 01-JUL-14 02:10:00 to 01-JUL-14 02:10:00 (EST-5)
Location: OTTERBURN
Magnitude: 50.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Newspaper

Wires reported down.

Thunderstorm Wind in OAKLAND, MICHIGAN
From 01-JUL-14 02:10:00 to 01-JUL-14 02:10:00 (EST-5)
Location: WIXOM SPENCER ARPT
Magnitude: 61.00 EG
Property damage: 5.00K
Crop damage: 0.00K
Reported by: Law Enforcement

Numerous trees and wires down.

Thunderstorm Wind in GENESEE, MICHIGAN
From 01-JUL-14 02:00:00 to 01-JUL-14 02:00:00 (EST-5)
Location: ARGENTINE
Magnitude: 52.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Newspaper

Tree blown onto a road.

Thunderstorm Wind in LIVINGSTON, MICHIGAN
From 01-JUL-14 02:00:00 to 01-JUL-14 02:00:00 (EST-5)
Location: HAMBURG
Magnitude: 52.00 EG
Property damage: 5.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Trees and power lines reported down.

Thunderstorm Wind in LIVINGSTON, MICHIGAN
From 01-JUL-14 02:00:00 to 01-JUL-14 02:00:00 (EST-5)
Location: LAKELAND
Magnitude: 52.00 EG
Property damage: 5.00K
Crop damage: 0.00K
Reported by: 911 Call Center

Trees and power lines reported down.

Thunderstorm Wind in LIVINGSTON, MICHIGAN
From 01-JUL-14 02:00:00 to 01-JUL-14 02:00:00 (EST-5)
Location: HAMBURG
Magnitude: 61.00 EG
Property damage: 5.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Trees and power lines reported down.

Thunderstorm Wind in OAKLAND, MICHIGAN
From 01-JUL-14 02:10:00 to 01-JUL-14 02:10:00 (EST-5)
Location: OAKLEY PARK
Magnitude: 56.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Multiple trees reported down.

Thunderstorm Wind in OAKLAND, MICHIGAN
From 01-JUL-14 02:10:00 to 01-JUL-14 02:10:00 (EST-5)
Location: MILFORD
Magnitude: 52.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Law Enforcement

Numerous large tree limbs down.

Thunderstorm Wind in OAKLAND, MICHIGAN
From 01-JUL-14 02:10:00 to 01-JUL-14 02:10:00 (EST-5)
Location: MILFORD
Magnitude: 56.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Forty inch diameter tree uprooted.

Thunderstorm Wind in OAKLAND, MICHIGAN
From 01-JUL-14 02:12:00 to 01-JUL-14 02:12:00 (EST-5)
Location: WIXOM SPENCER ARPT
Magnitude: 50.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Four foot diameter tree blown down.

Thunderstorm Wind in OAKLAND, MICHIGAN
From 01-JUL-14 02:12:00 to 01-JUL-14 02:12:00 (EST-5)
Location: WIXOM SPENCER ARPT
Magnitude: 50.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Multiple four to six inch diameter tree limbs down.

Thunderstorm Wind in WASHTENAW, MICHIGAN
From 01-JUL-14 02:14:00 to 01-JUL-14 02:14:00 (EST-5)
Location: YPSILANTI
Magnitude: 52.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Spotter estimated a 60 mph thunderstorm wind gust.

Thunderstorm Wind in OAKLAND, MICHIGAN
From 01-JUL-14 02:10:00 to 01-JUL-14 02:10:00 (EST-5)
Location: WIXOM SPENCER ARPT
Magnitude: 64.00 MG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Thunderstorm Wind in LAPEER, MICHIGAN
From 01-JUL-14 02:45:00 to 01-JUL-14 02:45:00 (EST-5)
Location: ATTICA
Magnitude: 52.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Large tree limbs blown down blocking road.

Thunderstorm Wind in ST. CLAIR, MICHIGAN
From 01-JUL-14 03:05:00 to 01-JUL-14 03:05:00 (EST-5)
Location: FARGO
Magnitude: 50.00 EG
Property damage: 3.00K
Crop damage: 0.00K
Reported by: 911 Call Center

Downed wires.