Whenever the Land Use Planning and Zoning Department finds that an emergency exists such as sudden, unexpected occurrences, or combinations thereof, unforeseen conditions or circumstances at the time beyond a landowner's control, adverse weather conditions, meeting a timetable which requires immediate action to protect the public health, safety, and welfare, the Land Use Planning and Zoning Department may, without notice or hearing, issue an order citing the existence of such emergency and may require that such action be taken as may be deemed necessary to meet the emergency. The Land Use Planning and Zoning Department shall notify the Chairperson of the Land Use Planning and Zoning Committee within 24 hours of such situations. Notwithstanding any other provisions of this chapter, such order shall become effective immediately. Any person to whom such order is directed shall comply therewith immediately. Appeals or challenges to emergency orders may be brought to the Board of Adjustment after emergency conditions have ceased.