Update, 3:59 p.m.: Rockwall ISD's buses for secondary school students will be delayed up to 45 minutes.
Update, 3:48 p.m.: Mesquite ISD will release its high school students at 4 p.m.; buses running 30 minutes later than normally scheduled.
Update, 3:45 p.m.: Plano ISD says most activities will continues as schedule but asks parents to check with their students' individual campuses.
Grapevine-Colleyville ISD also reports that all after-school activities will continue as normally scheduled.