A second big system is headed toward Central and Eastern Kentucky, already pounded this week by a snowstorm that covered roads and caused schools to close.
"We just happen to be in a real active pattern right now," said Tom Reaugh of the National Weather Service in Louisville.
A mix of snow, sleet and freezing rain could hit the Bluegrass on Wednesday night and Thursday.
But first, bitter temperatures were on tap. Wind-chill readings Tuesday could be 7 below to 3 above zero until midday.
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The low temperatures might have caused some roads to refreeze Monday night.
"The biggest issue that's happening tonight is it's going to get down in the single digits," Sam Williams, director of the Streets, Roads and Forestry Division in Fayette County, said Monday. "At that temperature, even the roads we treated with rock salt will freeze back."
Fayette County Public Schools were scheduled to start two hours later than normal on Tuesday in hopes that rush hour traffic would help break up any ice, district spokeswoman Lisa Deffendall said.
The delay also would allow buses to run in the daylight and without so many commuters on the roads, which should make for safer conditions, she said.
Buses were to run their regular routes two hours later than normal. Schools will dismiss at their usual times, and after-school activities will go on. Zero hour classes are canceled, as are morning Early Start sessions, but afternoon Early Start sessions will meet as usual.
Many Central Kentucky districts were to remain closed Tuesday.
Sunday night's storm brought 4.3 inches of snow to Lexington, according to the National Weather Service.
According to the National Weather Service in Jackson, Heidelburg in Lee County had received 10 inches by Monday morning.
Lexington shelters are seeing an influx of people seeking relief from the cold.
Heather Mitchell, director of volunteer relations at the Hope Center, said the shelter provides beds for more than 200 men each night; by 8:30 p.m. Monday, about 20 more than usual had come in, she said.
"There's a steady flow of men coming," she said.
Maj. Debra Ashcraft of the Salvation Army said the organization's shelter on Main Street, which serves women and families, had 142 people staying there Monday afternoon. However, she said the economy has as much to do with that as the weather.
Greffrey Rice, who hauls hay for a horse farm but recently lost his apartment when business got slow, said he usually sleeps outside in a sleeping bag: "I've been in the Army," he said. Sleeping upright in a chair at the Catholic Action Center is difficult for him because he has circulation problems, and his legs swell. But when the temperature drops below 30, he said, he comes anyway.
Dozens of people crowded into the Catholic Action Center on Monday night to share a meal of breakfast casserole, mashed potatoes and doughnuts.
Ginny Ramsey, the center's founder, said many people have housing but not heat, so they spend their days at the center. One 80-year-old man who comes regularly uses his electric stove to heat his home, she said.
Ramsey also worries that the bad weather will adversely affect donations to the center's Christmas Store, which distributes used toys to needy families.
"It could knock us out," she said.