Launched by the NSW Government, the app will send parents and families personalised immediate alerts if their child's school is to be closed the following day.
The app is an opt-in service and is available for iOS and Android users. It will expand over time to provide more centralised information to parents and families.
Parents with children at separate schools can register multiple schools on the app to receive local information.
Minister for Education Sarah Mitchell said the past few months have been incredibly challenging for school communities in bushfire and now flood-impacted areas.
"We have learnt you can never over-communicate in a crisis. This app provides an extra channel to inform parents if their children's school is closed," Ms Mitchell said.
"During the fires last year and floods this year, schools worked incredibly hard to ensure everyone was informed. The app complements these efforts with an automated and personalised alert informing parents their school is closed and to seek additional advice."
Download the Schools Update app on the Apple app store and Google Play store.
