If the Air Quality Index (AQI) exceeds 300 at any point during the school day, the school will be cancelled the following day for all students and staff regardless of overnight fluctuation. School will remain closed until the AQI remains below 300 for an entire day.
In the event that the AQI exceeds 300 in the morning before school (and school has not already been closed from the previous day), parents and staff are advised to check the CRIS facebook page whether school is cancelled or not.