National Weather Service United States Department of Commerce


Demopolis Lock & Dam EF-0 Tornado (Marengo County)
  March 17, 2021


Event Summary

Estimated Maximum Wind:
80 mph
Damage Path Length:
0.83 miles
Maximum Path Width:
175 yards
Approximate Start Point/Time:
2 ESE McDowell
at 2:03 pm CDT
Approximate End Point/Time:
2 W Demopolis
at 2:05 pm CDT


National Weather Service meteorologists surveyed the damage in Northern Marengo County and determined it was the result of a brief EF-0 tornado.

The tornado began near and crossed the Lock and Dam Road just west of Foscue Park, outside of the city of Demopolis. Damage consisted of uprooted trees, large tree branches broken, and some paneling pulled from a building adjacent to Foscue Creek. The tornado damage path was 0.83 miles long and was 175 yards wide at its widest point. The maximum winds were estimated around 80 mph.


Radar Image
Reflectivity (left) and velocity (right) of the circulation right before the tornado touched down.
Images are from KBMX at 2:01 pm CDT.





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