A large area of thunderstorms developed over Lake Michigan late in the evening on the 12th, as very moist air surged into the region.  These storms were severe as they moved onshore, producing damaging winds, large hail, and a brief tornado.  However, the biggest impact was from excessive rainfall, which produced unusually severe flooding in West Central Lower Michigan.  The Governor of Michigan declared a state of emergency for Manistee and Wexford Counties, along with other counties downstate.

Thunderstorm Wind in MANISTEE, MICHIGAN
From 12-JUN-08 20:30:00 to 12-JUN-08 20:40:00 (EST-5)
Location: MANISTEE
Magnitude: 70.00 EG
Property damage: 195.00K
Crop damage: 0.00K
Reported by: NWS Storm Survey

Widespread thunderstorm wind damage occurred across the south half of the city of Manistee, and especially between 2nd and 10th Streets.  Many trees were downed, and some structures were damaged, mainly by falling trees.

Hail in WEXFORD, MICHIGAN
From 12-JUN-08 20:40:00 to 12-JUN-08 20:40:00 (EST-5)
Location: MESICK
Magnitude: 1.75 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Hail in WEXFORD, MICHIGAN
From 12-JUN-08 22:02:00 to 12-JUN-08 22:02:00 (EST-5)
Location: MANTON
Magnitude: 0.75 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Broadcast Media

Hail in WEXFORD, MICHIGAN
From 12-JUN-08 22:35:00 to 12-JUN-08 22:35:00 (EST-5)
Location: CADILLAC
Magnitude: 0.88 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Broadcast Media

Thunderstorm Wind in WEXFORD, MICHIGAN
From 12-JUN-08 21:40:00 to 12-JUN-08 21:43:00 (EST-5)
Location: MESICK
Magnitude: 52.00 EG
Property damage: 12.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Two spotters estimated winds at 60 mph.  Several trees were downed, and a pole barn was partially unroofed.

Flood in MANISTEE, MICHIGAN
From 13-JUN-08 11:00:00 to 17-JUN-08 09:00:00 (EST-5)
Location: HARLAN
Flood cause: Heavy Rain
Property damage: 0.00K
Crop damage: 0.00K
Reported by: River/Stream Gage

Flooding lingered for several days after the heavy rain event ended, mainly on the Manistee River and its larger tributaries.

Flash Flood in MISSAUKEE, MICHIGAN
From 13-JUN-08 02:00:00 to 13-JUN-08 08:00:00 (EST-5)
Location: LUCAS
Flood cause: Heavy Rain
Property damage: 150.00K
Crop damage: 0.00K
Reported by: Newspaper

Three to six inches of rain fell in southwest and central Missaukee County, in the very early morning hours of the 13th.  This resulted in  flash flooding, with several roads washing out.

Flood in WEXFORD, MICHIGAN
From 13-JUN-08 11:00:00 to 17-JUN-08 09:00:00 (EST-5)
Location: HARRIETTA BUNCH ARPT
Flood cause: Heavy Rain
Property damage: 40.00K
Crop damage: 0.00K
Reported by: River/Stream Gage

Flooding lingered for several days after the heavy rain event ended, mainly on the Manistee River and its larger tributaries.  The Manistee River at Sherman established a new flood of record on the 14th, reaching 16.4 feet.  Several homes just above Hodenpyl Dam Pond had to be evacuated.

Tornado in MANISTEE, MICHIGAN
From 12-JUN-08 20:45:00 to 12-JUN-08 20:47:00 (EST-5)
Location: STRONACH
Tornado F-scale: EF0
Property damage: 15.00K
Crop damage: 0.00K
Reported by: NWS Storm Survey

EF0 tornado with estimated wind speeds 75 to 85 mph.  The tornado tracked through forested land near Skocelas Road, just south of M-55.  Numerous trees and large limbs were downed.

Flash Flood in MANISTEE, MICHIGAN
From 12-JUN-08 21:45:00 to 13-JUN-08 11:00:00 (EST-5)
Location: OAK HILL
Flood cause: Heavy Rain
Property damage: 970.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Spotters in Manistee and Wellston measured around six inches of rain in a few hours very late on the 12th into the pre-dawn hours of the 13th.  Radar estimated up to ten inches of rainfall along the southern border of Manistee County.  Substantial flash flooding resulted, with considerable soil erosion, thanks in part to the sandy soils of the area.  At one point the majority of roads in the south half of Manistee County were under water.  High water entered some homes.  In the city of Manistee, asphalt, stop signs, and light posts were flushed into Lake Michigan by the raging waters.  The county road commission estimated $500,000 in damages to the county road system.

Flash Flood in WEXFORD, MICHIGAN
From 12-JUN-08 23:30:00 to 13-JUN-08 11:00:00 (EST-5)
Location: HOXEYVILLE
Flood cause: Heavy Rain
Property damage: 750.00K
Crop damage: 0.00K
Reported by: Law Enforcement

Widespread flooding developed in southern Wexford County, with isolated flooding in the north, thanks to three to six inches of rainfall in a few hours either side of midnight.  Numerous roads were washed out, especially on the northwest side of Lake Cadillac, and near and north of Mesick.  One hundred and fifty homes were impacted by high water.