ANCHORAGE, AL (WTAQ) - An outdoors and survival instructor from Wisconsin is the object of a search in northwestern Alaska.

Bad weather has hindered the search efforts.

31-year-old Thomas Seibold of Three Lakes was reported overdue a week ago Sunday.

Seibold went to Alaska last September to hike and explore. He left a group of friends later that month, saying he would stay at a remote cabin through the end of October.

Seibold has a history of camping in severe winter conditions.

Alaska State Troopers say they will search areas near a pair of rivers where he might have built a base camp. Open rivers, thin ice and a lack of snow are slowing the ground search.