Updated Aug. 25 at 8:58 a.m. Magnolia ISD announced Friday morning on its website that the district has canceled classes for Monday, Aug. 28. MISD students were set to begin the 2017-18 school year on Monday. The district will post updated information on its website and social media pages regarding the school start date. The SAT test set for Saturday, Aug. 26, at Magnolia High School has also been canceled, according to the district's Facebook page. Aug. 24 Tomball ISD cancels classes for Friday, Monday as storm approaches As Hurricane Harvey is expected to bring severe weather to the Greater Houston area beginning Friday, Tomball ISD has cancelled classes for Friday, Aug. 25, and Monday, Aug. 28, according to a statement from the district Thursday night. Campus and district administrators will work until noon on Friday, the district said. Magnolia ISD is yet to cancel classes for Monday, Aug. 28—its scheduled start of the school year for students. However, the district will post information as available on its website, social media and Magnolia ISD app. Here are a few emergency preparedness tips for residents in both Montgomery and Harris counties as heavy rainfall and flooding is likely.