Miss. Code Ann. § 37-13-65

Upon application from the school board, the superintendent of schools may close any school because of an epidemic prevailing in the school district or because of the death, resignation, sickness or dismissal of a teacher or teachers or because of any other emergency necessitating the closing of the school. However, all such schools so closed shall operate for the required full time after being reopened during the scholastic year, unless the school board of the local school district submits a plan to alter the school term that is approved by the State Board of Education under the authority of Section 37-13-63(2) .