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EF1 tornado in Jefferson County, Kentucky

Tornado April 5, 2023 · Jefferson County, Kentucky

EF1
Rating
1.3 mi
Whole path
75 yd
Path width

NOAA records this tornado county by county. Its path ran through Jefferson County → Jefferson County; the totals above are for the whole tornado.

EF0EF1EF2EF3EF4EF5Unrated

The path drawn at its surveyed width of 75 yards (0.04 mi) — zoom in and the swath grows to true scale. Other tornadoes recorded nearby that day are shown faint.

What EF1 means. On the Enhanced Fujita scale, EF1 is moderate damage: roofs badly stripped, mobile homes pushed off foundations or overturned, windows broken, consistent with estimated gusts of 86–110 mph. The rating comes from a survey of the worst damage after the storm, not from a wind measurement, so it says as much about what the tornado hit as about how strong it was.

What the National Weather Service wrote

The National Weather Service in Louisville conducted a storm assessment survey across the Watterson Park neighborhood in Louisville. This is the area just south of the intersection of Newburg Road and Interstate 264 (Watterson Expressway). There

were two tornadoes in this area separated by a clear and distinct break of about 200 yards.

The first tornado started just north of the main Post Office distribution center. The tornado touched down just northwest of the intersection of Colonel Sanders Drive and Gardiner Lane. Trees were snapped and uprooted in this area before the tornado struck the roof of Yum! Brands headquarters. The northeast side of the well-constructed

building had a substantial portion of parapet wall removed and the brick wall was partially pushed inwards. Wind speeds in this area were estimated to be 95 mph.

The tornado continued to produce tree damage, including snapped, twisted, and uprooted trees. Wind speeds were between 87 and 90 mph in this area. The tornado lifted by Robards Lane just south of Gardiner Lane.

The wider storm

During the afternoon and evening hours of April 5, a low pressure system, moving northeast from Minnesota into Ontario, dragged a trailing cold front through the Lower Ohio Valley. This produced a line of severe storms that moved west to east over central Kentucky, resulting in multiple reports of tree damage, structural damage, and four combined tornadoes in Jefferson and Meade Counties.

Began near Parkway Vlg (38.1982, -85.6983).

Other tornadoes from the same storm system

2 more tornadoes the National Weather Service filed under this storm episode.

Source: NOAA Storm Events Database, event 1095649. Narratives are written by the National Weather Service forecast office that issued the report.

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