United States Department of Homeland Security - National Terrorism Advisory System. 1  In 2011, the Department of Homeland Security phased out the old Homeland Security Advisory System, replacing it with a two-level National Terrorism Advisory System. The system has two types of advisories: Alerts and Bulletins.
MIAMI-DADE COUNTY PUBLIC SCHOOLS TO RE-OPEN ON MONDAY, JAN. 7. All Miami-Dade County public schools and administrative offices will reopen on Monday, January 7, at their regularly scheduled times.
In observance of the upcoming holidays, all Duval County public schools will be closed Wednesday, November 23 through Monday, November 28. Duval County Public Schools (DCPS) administration offices will be closed Thursday, November 24 and Friday, November 25. For winter break, all Duval County public schools will be closed from Monday, December 19 through Monday, January 2. DCPS administration offices will be closed from Friday, December 23 through Monday, January 2. Both schools and administration offices will re-open on Tuesday, January 3.