In the case of a school district that comprises one or more preexisting districts and holds its elections in conjunction with the town elections in the component towns as provided in this subdivision, in the event of a weather or other emergency as described in N.H. Rev. Stat. § 669:1, V, the town moderators in each town shall, as described in N.H. Rev. Stat. § 669:1, coordinate to reschedule the town and school district elections.