National Weather Service United States Department of Commerce



Isolated Tornado in Trinity, AL on October 23, 2017


A cold front brought a line of heavy rainfall across the TN Valley during the early morning hours on October 23, 2017. The low level jet intensified as the line of showers moved through the area, producing a high amount of low level wind shear. This caused an isolated tornado to down near the Trinity community in Morgan County, AL around 2:28 am. Interesting to note, there was no lightning observed within the line of showers. 

Storm Reports

Click to the image to view an interactive track map. 


ESRI Shapefiles:        

All Survey Shapefiles - Zipped folder contains line, path, survey point, and select estimated damage swath shapefiles of all tornado tracks
that occurred in the Huntsville County Warning Area.  Attribute information includes:  Tornado Name, EF-Scale, Peak Wind, Start Time,
Beginning and Ending Latitudes and Longitudes, End Time, and maximum width in yards. 


 Location/Clickable Detailed
Summary Link
Start Time (CST)
Date (MMDD)
EF Scale/Max
Wind Speed (mph) 


Path Length

Path Width



2:28 AM - Oct 27, 2017
EF-1/105 MPH

0 /0



34.5746 -87.1057

 34.5942 -87.0706