(2) Property may be closed to public use only when fire, mudslide, landslide, or flood dangers pose a substantial risk of injury or loss of life, or when a federal, state, or local disaster or emergency declaration has been made by an authorized person or public agency, or where there is an emergency or potential emergency situation of a temporary nature that involves substantial risk or potential risk to life or property, and the temporary closure or restriction of access is necessary to protect the public health and safety. Any property closed shall be reopened as soon as the fire, mudslide, landslide, or flood dangers no longer pose a danger of injury or loss of life, or when a federal, state, or local disaster or emergency declaration is no longer in effect, or where there is no longer an emergency or potential emergency situation of a temporary nature that involves substantial risk or potential risk to life or property.