A strong cold front moved through southeast Michigan during the late afternoon and early evening hours of the 14th, producing low-topped supercells north of M-59.

Thunderstorm Wind in LAPEER, MICHIGAN
From 14-MAY-04 17:00:00 to 14-MAY-04 17:00:00 (EST)
Location: OTTER LAKE
Magnitude: 52 EG
Reported by: TRAINED SPOTTER

A trained weather spotter estimated a 60 mph thunderstorm wind gust.

Tornado in SAGINAW, MICHIGAN
From 14-MAY-04 15:20:00 to 14-MAY-04 15:20:00 (EST)
Location: SHIELDS
Tornado F-scale: F1
Property damage: 250K
Reported by: LAW ENFORCEMENT

A tornado caused damage along Trinklein, Stroebel, Hart, Miller, and Weigel roads in James Township. Damage was also reported along Center Road near Camelot Place Apartments in Saginaw Township.A National Weather Service storm survey determined winds reached up to 90 mph. Numerous trees and power lines were down.

Thunderstorm Wind in WASHTENAW, MICHIGAN
From 14-MAY-04 15:05:00 to 14-MAY-04 15:05:00 (EST)
Location: ANN ARBOR
Magnitude: 52 EG
Reported by: NEWSPAPER

A large tree toppled and blocked the eastbound lane of Dexter Avenue at the North Maple Road intersection.

Thunderstorm Wind in GENESEE, MICHIGAN
From 14-MAY-04 16:35:00 to 14-MAY-04 16:35:00 (EST)
Location: FLINT
Magnitude: 52 EG
Reported by: LAW ENFORCEMENT

Local law enforcement reported trees blown down.

Hail in GENESEE, MICHIGAN
From 14-MAY-04 16:35:00 to 14-MAY-04 16:35:00 (EST)
Location: MT MORRIS
Magnitude: 0.75 
Reported by: TRAINED SPOTTER

Hail in GENESEE, MICHIGAN
From 14-MAY-04 16:40:00 to 14-MAY-04 16:40:00 (EST)
Location: OTISVILLE
Magnitude: 0.75 
Reported by: TRAINED SPOTTER

Thunderstorm Wind in GENESEE, MICHIGAN
From 14-MAY-04 16:25:00 to 14-MAY-04 16:25:00 (EST)
Location: MONTROSE
Magnitude: 52 EG
Reported by: LAW ENFORCEMENT

Local law enforcement reported trees blown down.

Hail in GENESEE, MICHIGAN
From 14-MAY-04 16:45:00 to 14-MAY-04 16:45:00 (EST)
Location: GENESEE
Magnitude: 0.75 
Reported by: TRAINED SPOTTER

Hail in GENESEE, MICHIGAN
From 14-MAY-04 17:00:00 to 14-MAY-04 17:00:00 (EST)
Location: OTISVILLE
Magnitude: 0.75 
Reported by: TRAINED SPOTTER

Thunderstorm Wind in GENESEE, MICHIGAN
From 14-MAY-04 17:00:00 to 14-MAY-04 17:00:00 (EST)
Location: OTISVILLE
Magnitude: 65 EG
Reported by: TRAINED SPOTTER

A trained weather spotter estimated a 75 mph thunderstorm wind gust.

Thunderstorm Wind in GENESEE, MICHIGAN
From 14-MAY-04 16:40:00 to 14-MAY-04 16:40:00 (EST)
Location: OTISVILLE
Magnitude: 65 EG
Reported by: TRAINED SPOTTER

A trained weather spotter estimated a 75 mph thunderstorm wind gust.

Tornado in SANILAC, MICHIGAN
From 14-MAY-04 17:56:00 to 14-MAY-04 17:56:00 (EST)
Location: PECK
Tornado F-scale: F0
Reported by: TRAINED SPOTTER

A trained weather spotter reported a brief tornado touchdown.

Tornado in LAPEER, MICHIGAN
From 14-MAY-04 17:03:00 to 14-MAY-04 17:03:00 (EST)
Location: CLIFFORD
Tornado F-scale: F0
Reported by: GENERAL PUBLIC

The general public reported a brief tornado touchdown.

Tornado in ST. CLAIR, MICHIGAN
From 14-MAY-04 17:11:00 to 14-MAY-04 17:13:00 (EST)
Location: JEDDO
Tornado F-scale: F0
Property damage: 15K
Reported by: EMERGENCY MANAGER

A tornado tracked along Logana road. Several mature pine trees were uprooted. There was also damage to a barn, vehicle, and porch.