SNOW DAY: Forget what the weather report says. There will be snow in Cerritos on Wednesday. Preschoolers attending the ABC Unified School District's Adult School parent education program have been advised to wear warm clothing and their mittens. Ten tons of ice will be shredded into snow and dumped on the parking lot at Gahr High School for the children. This will be the eighth year that school officials have held Snow Day for the children.