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Straight Line Thunderstorm Winds Rating EF1 on the Enhanced Fujita Damage Scale Rip Through Parts of Delaware and Otsego Counties Thursday Evening August 16th, 2007

A National Weather Service Storm Survey Team found evidence of very strong straight line thunderstorm winds in southern Otsego County and northwest Delaware County. There were areas with numerous large trees uprooted and snapped. Some of the trees had diameters of more than 2 feet. One large tree was blown down onto a car. Fortunately no one was injured. In addition, two homes were damaged. One had siding torn off and a small part of the roof peeled off. Another home, which faced directly into the wind, had windows blown in and a small part of the roof lifted off.

The thunderstorm winds struck around 6:30 PM EDT Thursday and lasted for about 10 minutes. Tree damage was found along an 8 mile long and 6 mile wide stretch from a few miles northwest of Wells Bridge in the towns of Otego and Unadilla, south southeast through Wells Bridge, and the towns of Sidney and Franklin.

The damage suggests that the top wind speeds were between 85 and 95 mph which rates an EF1 on the Enhanced Fujita Damage Scale. There was no discernible evidence of a tornado.

Click on an image below to view Base Reflectivty or Velocity loops, or damage photos.

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Base Reflectivity
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Base Velocity
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Damage Photos

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Page last modified: August 20, 2007
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