A warm front spawned 6 tornadoes which impacted Shiawassee and Genesee Counties.

Tornado in SHIAWASSEE, MICHIGAN
From 28-MAY-13 20:09:00 to 28-MAY-13 20:19:00 (EST-5)
Location: BANCROFT
Tornado F-scale: EF1
Property damage: 100.00K
Crop damage: 0.00K
Reported by: NWS Storm Survey

This tornado formed 4 miles south-southeast of Bancroft and tracked east-northeastward for about 5.5 miles before exiting Shiawaseee County about 3 miles north-northeast of Byron at 2019EST. The tornado continued in Genesee County for another 4 miles, before dissipating at 2024EST. The tornado was rated EF1 with maximum winds to 100 mph. Path width was 550 yards. The tornado started just south of the intersection of Britton and Grand River Roads. The tornado moved northeast near the city of Byron, before exiting Shiawassee County. Many trees were uprooted and snapped. 50 percent of a roof and siding were torn off a home. An old barn was destroyed and another whole roof was torn off.

Tornado in GENESEE, MICHIGAN
From 28-MAY-13 20:30:00 to 28-MAY-13 20:41:00 (EST-5)
Location: LAKE FENTON
Tornado F-scale: EF2
Property damage: 225.00K
Crop damage: 0.00K
Reported by: NWS Storm Survey

The tornado was rated EF2 with maximum wind speeds of 115 mph. The maximum path width was 500 yards with a total path length of 5.1 miles. The tornado started along Odell Road south of Linden Road and continued to Fenton Road north of Baldwin Road. The greatest damage occurred along Thompson Road between Fairbanks and Jennings Roads. There was significant damage to homes, including removal of roofs, along with substantial tree damage.

Tornado in SHIAWASSEE, MICHIGAN
From 28-MAY-13 19:47:00 to 28-MAY-13 19:49:00 (EST-5)
Location: SHAFTSBURG
Tornado F-scale: EF0
Property damage: 30.00K
Crop damage: 0.00K
Reported by: NWS Storm Survey

The Tornado was rated EF0 with maximum winds to 75 mph. Path width was 60 yards and path length 3/4 mile. The tornado started at Lansing and Warner roads, and followed lansing road and then crossed I-69. The tornado ended at the entrance ramp of the highway rest area. Many trees were uprooted and shingles were torn off a church.

Tornado in SHIAWASSEE, MICHIGAN
From 28-MAY-13 19:52:00 to 28-MAY-13 19:53:00 (EST-5)
Location: MORRICE
Tornado F-scale: EF0
Property damage: 50.00K
Crop damage: 0.00K
Reported by: NWS Storm Survey

The tornado was rated EF0 with maximum winds to 75 mph. Path width was 100 yards and path length 1/2 mile. The tornado started at Bethemy Cemetary and moved northeast, ending at West Britton and Hidden Ridge Roads. Trees were uprooted and many tree limbs were downed.

Tornado in GENESEE, MICHIGAN
From 28-MAY-13 20:01:00 to 28-MAY-13 20:06:00 (EST-5)
Location: BEECHER
Tornado F-scale: EF1
Property damage: 100.00K
Crop damage: 0.00K
Reported by: NWS Storm Survey

The tornado was rated an EF1 with maximum wind speeds of 105 mph. The maximum path width was 400 yards with a total path length of 2.3 miles. The tornado started at the southern end of Hasselbring Park and continued northeast to around the intersection of Harry Street and Humprey Avenue. The greatest damage occurred along Saginaw Street in between Holtslander and Downey Avenues. There was significant tree damage as well as damage to older commercial buildings of small to medium size.

Thunderstorm Wind in SHIAWASSEE, MICHIGAN
From 28-MAY-13 19:50:00 to 28-MAY-13 19:50:00 (EST-5)
Location: SHAFTSBURG
Magnitude: 50.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: NWS Storm Survey

Several large tree limbs up to 12 inch in diameter were blown down.

Tornado in GENESEE, MICHIGAN
From 28-MAY-13 20:19:00 to 28-MAY-13 20:24:00 (EST-5)
Location: GAINES
Tornado F-scale: EF0
Property damage: 10.00K
Crop damage: 0.00K
Reported by: NWS Storm Survey

This tornado formed 4 miles south-southeast of Bancroft in Shiawassee County and entered Genesee County about 1.5 miles west-southwest of Gaines at 2019EST. The tornado then continued for another 4.3 miles before dissipating 1.3 miles northwest of
the Gaines Airport at 2024EST. While in Genesee County, the tornado was rated EF0 with maximum winds to 80 mph.  The path width was 200 yards.  The tornado ended at the intersection of Baldwin and Seymour roads.  Many trees were uprooted and snapped. One barn lost a section of roof.

Tornado in GENESEE, MICHIGAN
From 28-MAY-13 20:54:00 to 28-MAY-13 21:06:00 (EST-5)
Location: GRAND BLANC
Tornado F-scale: EF2
Property damage: 350.00K
Crop damage: 0.00K
Reported by: NWS Storm Survey

The tornado was rated EF2 with a maximum wind speed of 130 mph. The maximum path width was 300 yards with a total path length of 4.6 miles. The tornado started near the intersection of Vassar Road and Pointe North Drive and continued to State Road near Perry Road. The greatest damage occurred near the intersection of Hegel Gale Roads. A house was nearly destroyed, along with a garage and external storage facilities wrecked.