Multiple rounds of severe storms rolled across Southern Michigan on Friday, September 5, bringing damaging winds and numerous reports of damage.  Winds up to 74 mph were reported as the storms raced east ahead of a cold front.  The environment was primed for severe weather with temperatures reaching into the upper 80s and lower 90s, along with dewpoints reaching up into the 70s.  Nearly 400,000 homes and businesses in Southeast Michigan lost power due to the severe thunderstorms.

Thunderstorm Wind in MACOMB, MICHIGAN
From 05-SEP-14 19:13:00 to 05-SEP-14 19:13:00 (EST-5)
Location: CENTER LINE
Magnitude: 61.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Large tree limbs reported down.

Thunderstorm Wind in WAYNE, MICHIGAN
From 05-SEP-14 19:10:00 to 05-SEP-14 19:10:00 (EST-5)
Location: REDFORD HGTS
Magnitude: 52.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

A spotter estimated a 60 mph thunderstorm wind gust.

Thunderstorm Wind in SANILAC, MICHIGAN
From 05-SEP-14 16:58:00 to 05-SEP-14 16:58:00 (EST-5)
Location: ROSEBURG
Magnitude: 56.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Damage to a barn.

Thunderstorm Wind in LIVINGSTON, MICHIGAN
From 05-SEP-14 18:15:00 to 05-SEP-14 18:15:00 (EST-5)
Location: PINCKNEY
Magnitude: 52.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

A spotter estimated a 60 mph thunderstorm wind gust.

Thunderstorm Wind in GENESEE, MICHIGAN
From 05-SEP-14 19:03:00 to 05-SEP-14 19:03:00 (EST-5)
Location: ATLAS
Magnitude: 52.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Amateur Radio

One and half foot diameter tree reported down.

Thunderstorm Wind in OAKLAND, MICHIGAN
From 05-SEP-14 18:10:00 to 05-SEP-14 18:10:00 (EST-5)
Location: CLARKSTON
Magnitude: 52.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Law Enforcement

A couple of trees reported down.

Thunderstorm Wind in WASHTENAW, MICHIGAN
From 05-SEP-14 18:39:00 to 05-SEP-14 18:39:00 (EST-5)
Location: SALINE
Magnitude: 50.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

One foot tree limb reported down.

Thunderstorm Wind in WASHTENAW, MICHIGAN
From 05-SEP-14 18:27:00 to 05-SEP-14 18:27:00 (EST-5)
Location: DOVER
Magnitude: 52.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Six inch diameter trees blown down.

Thunderstorm Wind in GENESEE, MICHIGAN
From 05-SEP-14 18:58:00 to 05-SEP-14 18:58:00 (EST-5)
Location: GRAND BLANC
Magnitude: 61.00 EG
Property damage: 5.00K
Crop damage: 0.00K
Reported by: Amateur Radio

Grand Blanc Fire Department reported trees down and partial collapse of house on Crest Knoll Drive.

Thunderstorm Wind in ST. CLAIR, MICHIGAN
From 05-SEP-14 19:08:00 to 05-SEP-14 19:08:00 (EST-5)
Location: PORT HURON INTL ARPT
Magnitude: 52.00 EG
Property damage: 2.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Wires reported down.

Thunderstorm Wind in WAYNE, MICHIGAN
From 05-SEP-14 19:15:00 to 05-SEP-14 19:15:00 (EST-5)
Location: FLAT ROCK
Magnitude: 50.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Public

Large tree limbs reported down.

Thunderstorm Wind in LIVINGSTON, MICHIGAN
From 05-SEP-14 18:19:00 to 05-SEP-14 18:19:00 (EST-5)
Location: FOWLERVILLE
Magnitude: 52.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

One foot diameter tree down blocking road.

Thunderstorm Wind in LIVINGSTON, MICHIGAN
From 05-SEP-14 18:10:00 to 05-SEP-14 18:10:00 (EST-5)
Location: FLEMING
Magnitude: 52.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

One foot diameter tree reported down.

Thunderstorm Wind in GENESEE, MICHIGAN
From 05-SEP-14 18:39:00 to 05-SEP-14 18:39:00 (EST-5)
Location: ARGENTINE
Magnitude: 56.00 EG
Property damage: 5.00K
Crop damage: 0.00K
Reported by: Law Enforcement

Numerous trees and wires down.

Thunderstorm Wind in SANILAC, MICHIGAN
From 05-SEP-14 16:55:00 to 05-SEP-14 16:55:00 (EST-5)
Location: PECK
Magnitude: 52.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Public

One foot diameter tree snapped.

Thunderstorm Wind in GENESEE, MICHIGAN
From 05-SEP-14 18:58:00 to 05-SEP-14 18:58:00 (EST-5)
Location: GRAND BLANC
Magnitude: 50.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: NWS Employee

Four to six inch diameter tree branches and power poles reported down.

Thunderstorm Wind in LAPEER, MICHIGAN
From 05-SEP-14 19:06:00 to 05-SEP-14 19:06:00 (EST-5)
Location: HADLEY
Magnitude: 52.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Law Enforcement

Tree fell onto a car.

Thunderstorm Wind in LAPEER, MICHIGAN
From 05-SEP-14 18:30:00 to 05-SEP-14 18:30:00 (EST-5)
Location: IMLAY CITY
Magnitude: 56.00 EG
Property damage: 5.00K
Crop damage: 0.00K
Reported by: Law Enforcement

Multiple trees and power line reported down.

Thunderstorm Wind in GENESEE, MICHIGAN
From 05-SEP-14 19:03:00 to 05-SEP-14 19:03:00 (EST-5)
Location: GOODRICH
Magnitude: 52.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Ten inch diameter tree snapped, along with multiple large tree limbs down.

Thunderstorm Wind in WAYNE, MICHIGAN
From 05-SEP-14 18:47:00 to 05-SEP-14 18:47:00 (EST-5)
Location: (YIP)WILOW RUN APT D
Magnitude: 52.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Two foot diameter tree uprooted.

Thunderstorm Wind in GENESEE, MICHIGAN
From 05-SEP-14 19:03:00 to 05-SEP-14 19:03:00 (EST-5)
Location: GOODRICH
Magnitude: 61.00 EG
Property damage: 25.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Numerous large trees down, some on homes and vehicles.

Thunderstorm Wind in MONROE, MICHIGAN
From 05-SEP-14 18:53:00 to 05-SEP-14 18:53:00 (EST-5)
Location: CARLETON
Magnitude: 56.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Public

Multiple trees reported down.

Thunderstorm Wind in OAKLAND, MICHIGAN
From 05-SEP-14 19:00:00 to 05-SEP-14 19:00:00 (EST-5)
Location: LATHRUP
Magnitude: 56.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Trees and tree limbs down in Nottingham Forecast Subdivision.

Thunderstorm Wind in MACOMB, MICHIGAN
From 05-SEP-14 19:10:00 to 05-SEP-14 19:10:00 (EST-5)
Location: EAST DETROIT
Magnitude: 56.00 EG
Property damage: 1.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Trees down and two large tents destroyed.

Thunderstorm Wind in WAYNE, MICHIGAN
From 05-SEP-14 18:55:00 to 05-SEP-14 18:55:00 (EST-5)
Location: NORWAYNE
Magnitude: 50.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Public

Large tree limbs reported down.

Thunderstorm Wind in WAYNE, MICHIGAN
From 05-SEP-14 19:03:00 to 05-SEP-14 19:03:00 (EST-5)
Location: ECORSE JCT
Magnitude: 50.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Public

Multiple large tree limbs reported down.

Thunderstorm Wind in OAKLAND, MICHIGAN
From 05-SEP-14 19:06:00 to 05-SEP-14 19:06:00 (EST-5)
Location: BERKLEY
Magnitude: 52.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Eighteen inch diameter tree reported down.

Thunderstorm Wind in MACOMB, MICHIGAN
From 05-SEP-14 19:10:00 to 05-SEP-14 19:10:00 (EST-5)
Location: WASHINGTON
Magnitude: 52.00 EG
Property damage: 1.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Three inch diameter tree branches reported down.

Thunderstorm Wind in WAYNE, MICHIGAN
From 05-SEP-14 19:09:00 to 05-SEP-14 19:09:00 (EST-5)
Location: WESTLAND
Magnitude: 50.00 EG
Crop damage: 0.00K
Reported by: Broadcast Media

An event tent fell over and injured 5 people.

Thunderstorm Wind in WAYNE, MICHIGAN
From 05-SEP-14 19:10:00 to 05-SEP-14 19:10:00 (EST-5)
Location: (DET)DETROIT CITY AR
Magnitude: 54.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Severe large trees reported down.

Hail in WASHTENAW, MICHIGAN
From 05-SEP-14 18:38:00 to 05-SEP-14 18:38:00 (EST-5)
Location: SALINE
Magnitude: 0.88 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Hail in WASHTENAW, MICHIGAN
From 05-SEP-14 18:47:00 to 05-SEP-14 18:47:00 (EST-5)
Location: YPSILANTI MCENNAN FL
Magnitude: 0.75 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Thunderstorm Wind in HURON, MICHIGAN
From 05-SEP-14 15:27:00 to 05-SEP-14 15:27:00 (EST-5)
Location: BAD AXE
Magnitude: 52.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Law Enforcement

Large tree reported down on road.

Thunderstorm Wind in TUSCOLA, MICHIGAN
From 05-SEP-14 15:05:00 to 05-SEP-14 15:05:00 (EST-5)
Location: AKRON
Magnitude: 52.00 EG
Property damage: 3.00K
Crop damage: 0.00K
Reported by: Law Enforcement

Power lines down.

Thunderstorm Wind in HURON, MICHIGAN
From 05-SEP-14 15:15:00 to 05-SEP-14 15:15:00 (EST-5)
Location: PIGEON
Magnitude: 50.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Eight inch diameter tree branches reported down.

Thunderstorm Wind in HURON, MICHIGAN
From 05-SEP-14 15:28:00 to 05-SEP-14 15:28:00 (EST-5)
Location: BAD AXE
Magnitude: 53.00 MG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: AWOS

Measured at Huron County Memorial Airport.

Thunderstorm Wind in SANILAC, MICHIGAN
From 05-SEP-14 15:54:00 to 05-SEP-14 15:54:00 (EST-5)
Location: SANDUSKY
Magnitude: 56.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Law Enforcement

Multiple trees reported down.

Thunderstorm Wind in SANILAC, MICHIGAN
From 05-SEP-14 15:39:00 to 05-SEP-14 15:39:00 (EST-5)
Location: ARGYLE
Magnitude: 56.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Law Enforcement

Multiple trees down.

Thunderstorm Wind in SANILAC, MICHIGAN
From 05-SEP-14 16:18:00 to 05-SEP-14 16:18:00 (EST-5)
Location: PORT SANILAC
Magnitude: 56.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Law Enforcement

Multiple trees down.

Thunderstorm Wind in LAPEER, MICHIGAN
From 05-SEP-14 16:35:00 to 05-SEP-14 16:35:00 (EST-5)
Location: FIVE LAKES
Magnitude: 52.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Two foot diameter tree limb reported down.

Thunderstorm Wind in LAPEER, MICHIGAN
From 05-SEP-14 16:33:00 to 05-SEP-14 16:33:00 (EST-5)
Location: FIVE LAKES
Magnitude: 54.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Law Enforcement

Two trees reported down.

Thunderstorm Wind in OAKLAND, MICHIGAN
From 05-SEP-14 17:51:00 to 05-SEP-14 17:51:00 (EST-5)
Location: NEWARK
Magnitude: 50.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

One foot diameter tree snapped.

Thunderstorm Wind in OAKLAND, MICHIGAN
From 05-SEP-14 17:53:00 to 05-SEP-14 17:53:00 (EST-5)
Location: ORTONVILLE
Magnitude: 50.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Amateur Radio

Benches flipped and canopies blown over.

Thunderstorm Wind in GENESEE, MICHIGAN
From 05-SEP-14 17:31:00 to 05-SEP-14 17:31:00 (EST-5)
Location: FENTON
Magnitude: 50.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Amateur Radio

Six inch diameter trees reported down.

Thunderstorm Wind in WASHTENAW, MICHIGAN
From 05-SEP-14 18:20:00 to 05-SEP-14 18:20:00 (EST-5)
Location: SHARON HOLLOW
Magnitude: 54.00 MG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Thunderstorm Wind in HURON, MICHIGAN
From 05-SEP-14 15:28:00 to 05-SEP-14 15:28:00 (EST-5)
Location: POPPLE
Magnitude: 54.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Public

Several large tree limbs and a few trees reported down.

Thunderstorm Wind in WASHTENAW, MICHIGAN
From 05-SEP-14 18:32:00 to 05-SEP-14 18:32:00 (EST-5)
Location: SALINE
Magnitude: 56.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Emergency Manager

Tree and roof damage reported.

Thunderstorm Wind in WASHTENAW, MICHIGAN
From 05-SEP-14 18:34:00 to 05-SEP-14 18:34:00 (EST-5)
Location: DEXTER
Magnitude: 52.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Emergency Manager

Two ten inch diameter trees down, one down on a vehicle.

Thunderstorm Wind in WASHTENAW, MICHIGAN
From 05-SEP-14 18:44:00 to 05-SEP-14 18:44:00 (EST-5)
Location: WHITTAKER
Magnitude: 64.00 MG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Thunderstorm Wind in WASHTENAW, MICHIGAN
From 05-SEP-14 18:49:00 to 05-SEP-14 18:49:00 (EST-5)
Location: YPSILANTI MCENNAN FL
Magnitude: 52.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

A spotter estimated a 60 mph thunderstorm wind gust.

Thunderstorm Wind in WASHTENAW, MICHIGAN
From 05-SEP-14 18:47:00 to 05-SEP-14 18:47:00 (EST-5)
Location: RAWSONVILLE
Magnitude: 61.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

A spotter estimated a 70 mph thunderstorm wind gust.

Thunderstorm Wind in WAYNE, MICHIGAN
From 05-SEP-14 18:57:00 to 05-SEP-14 18:57:00 (EST-5)
Location: ROMULUS
Magnitude: 52.00 MG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: ASOS

Measured at Detroit Metro Airport.

Thunderstorm Wind in WAYNE, MICHIGAN
From 05-SEP-14 18:48:00 to 05-SEP-14 18:48:00 (EST-5)
Location: COVENTRY GARDENS
Magnitude: 50.00 EG
Property damage: 1.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Wires and small branches reported down.

Thunderstorm Wind in WAYNE, MICHIGAN
From 05-SEP-14 19:01:00 to 05-SEP-14 19:01:00 (EST-5)
Location: TAYLOR CENTER
Magnitude: 61.00 EG
Property damage: 3.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Power lines reported down.

Thunderstorm Wind in GENESEE, MICHIGAN
From 05-SEP-14 18:56:00 to 05-SEP-14 18:56:00 (EST-5)
Location: GRAND BLANC
Magnitude: 50.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Five inch diameter tree branch reported down.

Thunderstorm Wind in OAKLAND, MICHIGAN
From 05-SEP-14 19:10:00 to 05-SEP-14 19:10:00 (EST-5)
Location: HUNTINGTON WOODS
Magnitude: 50.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Small branches reported down.

Thunderstorm Wind in WASHTENAW, MICHIGAN
From 05-SEP-14 18:15:00 to 05-SEP-14 18:15:00 (EST-5)
Location: LYNDON CENTER
Magnitude: 54.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Fifteen inch diameter tree snapped. Roof damage to roof under construction.

Thunderstorm Wind in LENAWEE, MICHIGAN
From 05-SEP-14 18:31:00 to 05-SEP-14 18:31:00 (EST-5)
Location: TECUMSEH
Magnitude: 61.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Tree bent in half.

Thunderstorm Wind in OAKLAND, MICHIGAN
From 05-SEP-14 19:06:00 to 05-SEP-14 19:06:00 (EST-5)
Location: CLAWSON
Magnitude: 50.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Four inch diameter tree branch down.

Thunderstorm Wind in LAPEER, MICHIGAN
From 05-SEP-14 16:35:00 to 05-SEP-14 16:35:00 (EST-5)
Location: HOLLOWAY RES
Magnitude: 56.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Multiple trees reported down.

Thunderstorm Wind in WAYNE, MICHIGAN
From 05-SEP-14 19:12:00 to 05-SEP-14 19:12:00 (EST-5)
Location: (DET)DETROIT CITY AR
Magnitude: 56.00 MG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: ASOS

Measured at Detroit City Airport.

Thunderstorm Wind in WAYNE, MICHIGAN
From 05-SEP-14 19:18:00 to 05-SEP-14 19:18:00 (EST-5)
Location: GROSSE PT WOODS
Magnitude: 56.00 EG
Property damage: 5.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Trees and wires reported down.

Thunderstorm Wind in WASHTENAW, MICHIGAN
From 05-SEP-14 18:39:00 to 05-SEP-14 18:39:00 (EST-5)
Location: SALINE
Magnitude: 56.00 EG
Property damage: 1.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Multiple trees reported down. Shingles removed from a roof.

Thunderstorm Wind in WAYNE, MICHIGAN
From 05-SEP-14 19:14:00 to 05-SEP-14 19:14:00 (EST-5)
Location: SIBLEY
Magnitude: 50.00 MG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: AWOS

Measured at Grosse Ile Municipal Airport.

Thunderstorm Wind in OAKLAND, MICHIGAN
From 05-SEP-14 18:12:00 to 05-SEP-14 18:12:00 (EST-5)
Location: CLARKSTON
Magnitude: 52.00 EG
Property damage: 1.00K
Crop damage: 0.00K
Reported by: NWS Employee

Large tree limb and power line reported down.