Path length: 14.7 miles
Width: 550 yards
It was a powerful F5 tornado that moved 14.7 miles through parts of Jefferson County, AL on this day in 1977. This tornado is named after the area which received the greatest damage: Smithfield Drive and Smithfield Lane. Per the Storm Data Summary: The twister developed about 4 miles NW of downtown Birmingham. It moved to the northeast at 60 mph and lifted east of Tarrant. 167 homes were destroyed, 48 had major damage. Daniel Payne college was badly damaged. Per Thomas Grazulis in Significant Tornadoes, cars and trucks were “hurled like matchsticks” from I-65.
Photos from the NWS Birmingham
We gathered information for this event from the SPC & NCDC Databases, the April 1977 Storm Data Publication and Thomas Grazulis in Significant Tornadoes and found the following differences:
- All sources list the max width around 500-550 yards.
- In the text of the Storm Data summary though, they mention the tornado was 3/4 of a mile at its widest point, that would be 1320 yards.
- Storm Data and Grazulis have 15 mile path.
- SPC/NCDC has a 14.7 mile path.
Sources:Grazulis, Thomas P. (1993). Significant Tornadoes 1680-1991: A Chronology and Analysis of Events. St. Johnsbury, VT: The Tornado Project of Environmental Films. Page 1192.
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