Here’s the latest from the National Weather Service:
A reinforcing arctic air mass is diving down through the northern plains with temperatures in the single digits across the Dakotas early this afternoon.
The leading edge of the arctic air mass will move down into western Missouri this evening and into far western Tennessee around daybreak Thursday.
Snow is already falling in advance of this system, which will move into western Middle Tennessee just before daybreak and then advance eastward during the morning and continue into the afternoon before tapering from the west.
The leading edge of the arctic air mass is expected to pass through Nashville during the early afternoon on Thursday with winds shifting to the west and becoming gusty.
Snow amounts are expected to range from 1-3 inches.