August 19th 2010 Tornado / Severe Storm Summary

A long lived supercell tracked southeast from northern Saginaw County to Macomb County during the late afternoon and early evening hours of August 19th, producing 2 tornadoes, damaging winds up to 80 mph and hail to golf ball size.

Here are some of the specifics related to this severe event.

A National Weather Service storm survey team confirmed 2 tornadoes touched down in Macomb County.
The first tornado, EF1, touched down near the intersection of 22 Mile Road and Hayes Road. The tornado, with winds estimated up to 90 mph, touched down at 727 pm and tracked nearly due south before lifting at 733 pm just east of Hayes Road on M-59. The total path length was estimated at 2 miles with a maximum width of 250 yards. Damage included multiple homes with roof damage in addition to trees and power lines blown down.

The second tornado, an EF0, touched down on Groesbeck Highway, a half mile north of 16 mile road. The tornado, with winds estimated up to 85 mph, touched down at 743 pm and tracked to the South-Southeast before lifting at 748 pm just west of the intersection of 14 Mile Road and Harper Avenue. The total path length was estimated at 3 miles, with a maximum width of 200 yards. Numerous trees were blown down along with powerlines.

In addition to the tornado damage, widespread tree damage associated with thunderstorm winds up to 70 mph were observed across southern Macomb County.

Additionally, the National Weather Service storm survey team concluded that the damage in eastern Genesee County and western Lapeer County - near Davison and Elba - was consistent with thunderstorm straight line winds with speeds up to 80 mph and was about 2.5 miles wide.

Finally, the National Weather Service storm survey team concluded that the damage observed in and around the Lake Orion, Oxford, and Metamora areas was consistent with thunderstorm straight line winds with speeds up to 70 mph.



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