Harford County Public Schools were scheduled to be closed for students, faculty and staff Monday in observance of Dr. Martin Luther King Jr. Day. They were also scheduled to be closed Tuesday and Wednesday for students, but open for professional development for faculty and staff. Snow canceled the two professional development days, giving students, faculty and staff a five-day weekend. It was announced Tuesday that schools would be operating on Code Green, meaning only essential staff should report for work Wednesday. They must wait for instructions from their supervisors before coming to work, according to the HCPS website.