This is from the NWS guys:
SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE NASHVILLE TN 338 PM CST WED JAN 1 2014
A COLD FRONT WILL SWEEP ACROSS MIDDLE TENNESSEE LATE WEDNESDAY NIGHT AND THURSDAY MORNING, BRINGING WIDESPREAD PRECIPITATION TO THE MID STATE ALONG WITH CONSIDERABLY COLDER TEMPERATURES. THERE WILL BE ENOUGH MOISTURE BEHIND THE FRONT TO PRODUCE SOME SNOW, AND WITH TEMPERATURES DROPPING THROUGHOUT THE DAY ON THURSDAY, MUCH OF THIS PRECIPITATION WILL FALL AS SNOW, OR A MIXTURE OF RAIN AND SNOW. LOCATIONS AROUND LAWRENCEBURG, PULASKI, COLUMBIA, AND FRANKLIN WILL LIKELY ONLY SEE A DUSTING OF SNOW, AS TEMPERATURES WILL BE TOO WARM FOR ANY APPRECIABLE ACCUMULATION. FARTHER NORTH AND EAST, AROUND CAMDEN, DICKSON, CLARKSVILLE, LEBANON, MURFREESBORO, AND MCMINNVILLE, SNOW ACCUMULATIONS OF UP TO ONE-HALF INCH ARE POSSIBLE ON THURSDAY. PLACES ALONG THE HIGHLAND RIM AND THE CUMBERLAND PLATEAU, INCLUDING PORTLAND, LAFAYETTE, JAMESTOWN, CROSSVILLE, AND LIVINGSTON, COULD SEE UP TO AN INCH OF SNOW BEFORE IT ENDS THURSDAY EVENING. BY FRIDAY MORNING, TEMPERATURES WILL BOTTOM OUT IN THE TEENS ACROSS ALL OF MIDDLE TENNESSEE AS AN ARCTIC AIR MASS SPREADS OVER THE REGION.
- Thursday Rain before noon, then a slight chance of rain and snow. Temperature falling to around 31 by 5pm. South southwest wind 10 to 15 mph becoming northwest 15 to 20 mph in the afternoon. Winds could gust as high as 30 mph. Chance of precipitation is 80%. Little or no snow accumulation expected.
- Thursday Night Partly cloudy, with a low around 18. North northwest wind 15 to 20 mph, with gusts as high as 30 mph.
- Friday Sunny, with a high near 32. North wind 5 to 15 mph becoming east northeast in the afternoon. Winds could gust as high as 20 mph.
- Friday Night Mostly clear, with a low around 21. Light and variable wind becoming south 5 to 10 mph after midnight.
Ya"ll stay safe.