On Feb. 19, Navajo Nation President Jonathan Nez and Vice President Myron Lizer signed a declaration of emergency issued by the Navajo Nation Commission on Emergency Management because of severe winter weather conditions on the Navajo Nation.On Feb. 19, Navajo Nation President Jonathan Nez and Vice President Myron Lizer signed a declaration of emergency issued by the Navajo Nation Commission on Emergency Management because of severe winter weather conditions on the Navajo Nation.