The department shall extend the 90-day period for recovery of timber property after reporting specified in Alaska Stat. § 45.50.232 if a good faith effort to salvage the timber property is being made by the person requesting the extension. Extensions shall be granted for limited periods only but may be continued until salvage is completed, and guidelines shall be established specifying what constitutes a good faith effort for purposes of extension under regulations adopted by the department. Definition of a good faith effort must include the specification of extraordinary circumstances of weather and tide conditions that may preclude direct and immediate salvage operations.