The Skamania County sheriff's office says it appears the weather Thursday will allow an air search for a man and a woman missing in separate, remote areas of southwest Washington.
Undersheriff Dave Cox says the state Emergency Management Division is trying to arrange a plane or helicopter.
The ground search has been suspended to allow volunteers to regroup and revitalize for a search Saturday, if needed.
They are looking for 31-year-old Kristopher Zitzewitz of Portland. He became separated from his hiking partner Saturday in the Big Lava Beds area of Gifford Pinchot National Forest, southwest of 12,280-foot Mount Adams.
Searchers also are trying to locate 23-year-old Alejandra Wilson who failed to check in by phone with her father Monday. She has been hiking the Pacific Coast Trail