National Weather Service United States Department of Commerce


Oneonta Straight Line Wind Damage (Blount County)
  January 22, 2017


Event Summary

National Weather Service meteorologists surveyed damage in Blount County and determined that the damage was consistent with straight line wind damage. 

A storm survey was conducted in Blount County, with a particular focus on the city of Oneonta.  It was determined that the significant damage sustained was from straight line winds. The determination was made from the divergent tree and damage pattern, and the absence of debris splatter on the leeward facing sides of the damaged structures.  In the immediate downtown area, over 60 structures were damaged or destroyed and approximately 200 trees were either snapped or uprooted.  The peak wind speeds were estimated between 70 and 80 mph, and this was confirmed by a weather observing station located at the Oneonta Fire Department that measured 77 mph. 

Thanks to Blount County EMA, 911 Center Director, 911 Center GIS Analyst, and the Oneonta Public Safety Director for their assistance with this survey. 




Estimated Maximum Wind:
80 mph
Damage Path Length:
1.40 miles
Maximum Path Width:
1000 yards
Approximate Start Point/Time:
at 1:38 am CST
Approximate End Point/Time:
at 1:40 am CST


GIS Data



Reflectivity (left) and Velocity (right).
Images are from KBMX at 1:38 am CST.




Storm damage pictures courtesy Blount County 911