(a) If the state board determines that the enrollment of a school district in the preceding school year decreased from the enrollment in the second preceding school year and that a disaster contributed to such decrease, the enrollment of such school district in the second school year following the school year in which the enrollment of the school district was first affected by the disaster shall be the greater of:

(1) The enrollment of preschool-aged at-risk students, if any, plus the average of the enrollment for the current and the preceding three school years, excluding the enrollment of preschool-aged at-risk students in each such year; or

(2) the enrollment of the school district, as defined in Kan. Stat. Ann. § 72-5132, and amendments thereto.

(b) As used in this section, “disaster” means the occurrence of widespread or severe damage, injury or loss of life or property resulting from flood, earthquake, tornado, wind, storm, drought, blight or infestation.