Here is what I have gathered from the official storm reports, and some of our undergraduates at Scalia Lab (NOTE: some of the students shadowed the NWS on the survey)
A tornado was confirmed by the NWS in Athens County... it formed 4 miles S. of Nelsonville, traveled approx. 3 miles. This tornado was an EF2, with winds in the 110-120 MPH range.
The tornado had dissipated by the time it reached The Plains (though there may have been rotation, funnels, etc.). The storm was actually beginning to die some, but when you have 120 MPH winds, the downdraft is going to be nasty as the storm cycles out... it doesn't just crap out instantaneously. The damage in The Plains was laid out in a very distinct NW to SE pattern, which is why the survey said no tornado at that point. Based on the damage to the field, school, and single-wides, they are saying a downburst/microburst with approximately 100 MPH winds (keep in mind, while it may not have been a tornado, 100 MPH winds will mess things up; the only difference between this and a tornado is how the wreckage lays out afterward, this was serious stuff.... wind speeds were still at EF1 tornado strength, just not rotating at the time).
By the time it reached Athens, the downdrafts were continuing, but were still producing 80-100 MPH winds. This is what took out AutoTech.
Yes, there were funnels around Athens, but they did not reach the ground, so it appears. The funnel pictures for the most part were from about 15 minutes later, on a trailing cell which was firing off of the main one, and heading SE. Those funnels did eventually materialize into an EF3 (!) tornado in Meigs County, and Wood County, WV. This tornado had 150 MPH winds in OH, 160 in WV (and a fatality, unfortunately).
In addition, tornadoes were confirmed in Perry County (2), Holmes County, Wayne County, and Tuscarawas County.
Last Edited: 9/18/2010 3:24:47 AM by ts1227