Potential for late week winter storm in middle Tennessee... A winter storm is forecast for middle Tennessee late this week, producing significant snow and ice accumulations. Computer models have become consistent with this forecast over the last several days and indicate the potential for a significant winter storm by the end of the week. Those planning travel during that period should remain abreast of the latest weather forecast. A low pressure area will move along the Gulf coastal region and pull in colder air from the north. The time of greatest impact will be Thursday night through Friday night... and this is how things are expected to unfold... ... For Thursday night... we look for a change from rain to snow across northern areas... with a mix of rain... sleet... and freezing rain across the south. Snow and ice accumulations are possible. ... For Friday... snow continues across the north... with snow also spreading into some southern areas during the day. Meanwhile parts of southern middle Tennessee will continue to experience a mix of rain... sleet... and freezing rain. Significant accumulations of snow and ice are likely. ... For Friday night... much colder air spreads in... with snow expected over all of the mid state. More snow and ice accumulations are likely. There is still some uncertainty regarding the eventual track of the low pressure area along the Gulf Coast. Therefore... it is difficult to provide a reliable forecast of total snow and ice accumulations at this time. However... it appears that significant snow and ice accumulation will occur over a large part... if not all... of the mid state by the time precipitation tapers off late Friday night.