(CNN) -- Damaging storms in the lower Mississippi valley Tuesday night unleashed baseball-sized hail, high winds and possible twisters, including one that lifted a tractor-trailer, the National Weather Service said.
Meteorologists from Texas to Kentucky, a day after a similar round of storms, were flooded Tuesday evening with reports of severe storms or tornado touchdowns.
According to the agency's Storm Prediction Center, there were 24 preliminary tornado reports by late Tuesday, but the actual number had not been confirmed.
Matt Bishop with the weather service's Fort Worth office said the staff had heard of multiple reports of damage in northeastern Texas, although he was unaware of any injuries.
"We're in the middle of a severe weather outbreak," he said at 7:45 p.m.
At least two rounds of storms had struck Kaufman, Texas, about 30 miles east of Dallas, by Tuesday evening and another was on the way.
"It's a little bit of everything around us," said Kaufman Sheriff's Office spokeswoman Pat Laney. "It's been a chaotic afternoon."
She had heard of some damage, but no reports of injuries. "We've been very blessed," Laney said.
The Little Rock, Arkansas, office received reports of hail, downed tree limbs and the incident involving the tractor-trailer in Coy, on U.S. 165, said forecaster Brian Smith.
A tornado warning was issued for Crittenden County, Arkansas, just west of the border with Tennessee, near Memphis. Warnings were issued throughout the Memphis region, said forecaster Marlene Mickelson. About 24,000 people had lost power Tuesday night in the Memphis area.
A possible tornado that tracked from Elaine, Arkansas, and into Friars Point and Coahoma, Mississippi, caused widespread damage to homes, trees and power lines, said Z.E. Ingram of the Weather Service Memphis office. Another twister was reported at Marion, Arkansas, west of Memphis.