A tornado touched down briefly in southern Leslie County during Sunday's storms, the National Weather Service office in Jackson reported.
The Louisville weather service office said Monday afternoon that it had not received confirmation of any twisters in its service area, which includes Lexington and Central Kentucky.
Storm damage in Lexington Sunday was caused by straight-line winds, not a tornado, the National Weather Service office in Louisville said.
Tony Edwards, a forecaster with the Jackson office, said an EF-1 tornado, with winds of about 75 mph, touched down in south Leslie County for perhaps a minute or two Sunday. Other than some trees, no damage was reported.
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Officials had said initially Monday morning that there appeared to be no touchdowns in the state.
Softball-size hail was reported on the Clay-Leslie county line, Edwards said.
"I'm not aware of any significant damage from the hail, but if you get hail that size, it's going to cause some," he said. "But the worst damage I'm aware of was what happened in Lexington."
Several houses in a Lexington neighborhood off Georgetown Road were damaged. Trees and fences were toppled.
About 26,000 customers were without power immediately after the storms Sunday, including roughly 11,000 in Fayette County and about 15,000 in surrounding counties, according to Kentucky Utilities.