National Weather Service United States Department of Commerce

All known tornadoes from 1950 to Present are plotted on the maps below.  Click on a county name to see a detailed map of all known tornado tracks in that county. Please read the important disclaimer below concerning the plotting of historical tornadoes. This data is considered "unofficial". For "official" statistics, contact the National Climatic Data Center, NCDC.


Allegheny, PA Beaver, PA Lawrence, PA Butler, PA Mercer, PA Venango, PA Forest, PA Clarion, PA Jefferson, PA Indiana, PA Armstrong, PA Westmoreland, PA Fayette, PA Greene, PA Washington, PA Garrett, MD Hancock, WV Brooke, WV Ohio, WV Marshall, WV Wetzel, WV Marion, WV Monongalia, WV Preston, WV Tucker, WV Columbiana, OH Carroll, OH Jefferson, OH Harrison, OH Tuscarawas, OH Coshocton, OH Muskingum, OH Guernsey, OH Belmont, OH Noble, PA Monroe, PA



Mercer County Venango County Forest County Clarion County Jefferson County
Lawrence County Butler County Armstrong County Indiana County Beaver County
Allegheny County Westmoreland County Washington County Fayette County Greene County



Coshocton County Muskingum County Tuscarawas County Guernsey County
Noble County Belmont County Harrison County Carroll County
Jefferson County Columbiana County Monroe County  


West Virginia

Hancock County Brooke County Ohio County Marshall County Wetzel County
Marion County Monongalia County Preston County Tucker County



Garrett County




*Disclaimer: These tracks are approximate. Some starting and stopping points are not exact.