Miss. Code Ann. § 37-13-64

(1) Beginning with the 2010-2011 school term, any school district required to close the operation of its schools by decision of the superintendent, under the authority provided by the local school board, due to extreme weather conditions, in the best interests of the health and safety of the students, administration and staff of the school district, shall be exempt from the requirement that schools be kept in session a minimum of one hundred eighty (180) days. Any school district that closes its schools for reasons authorized under this section shall receive payment from the State Department of Education for per pupil expenditure for pupils in net enrollment not to exceed ten (10) days.

(2) In the event weather conditions are cause for the closure of operations of schools in any local school district in any instance in which a state of emergency has not been declared pursuant to Section 37-151-211(4) , the State Board of Education may consider, on a case-by-case basis, requests submitted by local school districts to alter the school calendar consistent with the provision of that section.