The Brief Snow days for schools are capped with a set limit and this winter has been harsh - leaving some districts with few remaining. Hazel Park Superintendent Dr. Amy Wilcox explained the methodology school leaders use and sheds light on the snow day limit. Hazel Park Superintendent Dr. Amy Wilcox spoke about the threshold for canceling school. Wilcox said the decision on whether to cancel school for Friday will be decided on within the next couple hours. "That is a decision for some superintendents that they're going to say 'I can't close this day because I don't know what's coming yet,'" she said.