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EF1 tornado in Jefferson County, Kentucky

Tornado June 26, 2018 · Jefferson County, Kentucky

EF1
Rating
3.5 mi
Whole path
150 yd
Path width
$550K
Damage as recorded

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

EF0EF1EF2EF3EF4EF5Unrated

The path drawn at its surveyed width of 150 yards (0.09 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

This tornado touched down at the entrance of Westport Woods Apartments. Across from the complex numerous trees were snapped or topped off. On pacelli Place parts of trees were thrown into two houses, puncturing the siding. Most of the damage was high end EF0 around 85mph with much of the damage being 20 to 50 yards off the ground.

There were some hardwood trees uprooted and parts of them fell onto homes, fences, trampolines, and swing sets. Besides trees being twisted and turned in multiple directions, there was leaf and mud spattering on several homes in opposite directions of the storm movement. Intermittent tree top damage continued near Lake Louisvilla. At Westport Business Center there was significant roof damage with portions of the roofing material and parts of the roof supports 20 to 50 yards downwind and several windows blown out. At Ceva Logistics a large section of the north wall was pushed out due to 75-80 mph winds.

The tornado struck the north portion of Westport Bend Commerce Park, snapping and bending several trees. The tornado began to skip and struck a few trees in Forest Springs North before moving into Oldham County.

The wider storm

On the second day of heavy rain across central Kentucky, a quasi-stationary boundary was draped across the area. Training storms across south central KY in the morning resulted in significant flash flooding. Strong to severe thunderstorms then developed during the late morning across east central KY. As these storms moved off to the east another round of storms moved in from the west in response to a system moving out of central Missouri. These storms resulted in many reports of wind damage as well as some additional flooding and flash flooding. Moderate shear contributed to an EF-1 tornado touching down in Louisville near the Ford truck plant.

Began near Ballardsville (38.3062, -85.5303).

Source: NOAA Storm Events Database, event 757767. Narratives are written by the National Weather Service forecast office that issued the report.

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