* WHAT...Heavy snow. Additional snow accumulations between 3 to 6 inches with higher amounts of 6 to 12 inches above 9,500 feet. Localized areas in eastern Torrance, Guadalupe, and De Baca Counties will receive between 6 to 8 inches of additional snow. Bitterly cold temperatures will accompany the snow. * WHERE...Much of central to east central New Mexico, including Interstate 40 from Tijeras to Santa Rosa to the Texas border. * WHEN...Until 8 AM MST Sunday. * IMPACTS...Travel will become very difficult to impossible for an extended period of time, most notably along I-40 from Tijeras Canyon to the Texas border. The weight of accumulating snow will stress the power grid, potentially creating outages. An extended period of cold temperatures will increase the risk of frostbite and hypothermia. * ADDITIONAL DETAILS...Bitterly cold temperatures will also accompany this winter storm, with the coldest temperatures in the eastern plains of New Mexico. Temperatures will be coldest Sunday and Monday mornings when much of the eastern half of New Mexico will be in the single digits with wind chills below zero.