ST. ANTHONY, Idaho (KIFI/KIDK) - UPDATE: 6-24-19
Fremont County deputies have recovered the body of Thomas Willie.
Willie has been missing and presumed drowned since he fell off an inner-tube in the Teton River. His body was spotted and deputies and search and rescue volunteers retrieved the body Monday morning.
UPDATE: 6/17/19 2:50 p.m. The Bingham and Bonneville County Swift Water Rescue team joined the search for Cal Willie, 21, of Malad Monday. Willie fell off of an inner-tube during a float trip on the Teton River Friday.
Rescuers planned to ease back water levels and reduce flows on the river in an attempt to reduce turbulence near a diversion dam.
Fremont County Sheriff Len Humphries said it is possible the man's body will not be found for another 10 to 12 days. The search will likely be scaled back on Tuesday.
The man's family was on the scene Monday as search efforts intensified.
The incident prompted a wider warning from Fremont County Emergency Management Monday. The office called low-head dams a "drowning machine" because the water spilling over the dam creates such a dangerous hydraulic effect. Re-circulating currents below such dams can trap and drown a victim, even if they are wearing a life jacket.
UPDATE 6/16/19 4:33 P.M.: Fremont County Sheriff Len Humphries has confirmed to Local News 8 and KIDK Eyewitness News 3 the identity of the man they're searching for in the Teton River.
They are searching for 21-year-old Cal Willie of Malad, who is a BYU-Idaho student.
They say he was tubing on the river with nine friends on Friday.
They were not aware there was a diversion dam on the river.
When the group saw the dam, they tried to get out.
Nine of the friends made it out, but Willie did not.
Teams of close to 20 people from Fremont County Search and Rescue as well as Bonneville County have been trying to find him.
The Sheriff's Office believes Willie's body may be trapped in the severe undertow created by the dam.
Sheriff Humphries says the search effort has been hindered because of the dangerous water conditions.
Search crews will be joined tomorrow by the swift water rescue team from Bingham and Bonneville County because the water is too dangerous to send divers in now.
The river has gone up more than a foot since yesterday.
UPDATE 6/16/19 3:25 P.M.: Bonneville County is assisting the Fremont County Sheriff's office in their search.
ORIGINAL STORY: The Fremont County Sheriff's Office and search and rescue are looking for a body in the Teton River.
The Sheriff's Office said that two people were stranded in the river and later rescued by emergency responders on Friday night.
Crews are still searching for a 21-year-old man on Saturday. He was part of that same group rescued. The Sheriff's Office said he went over a diversion dam and got caught in the undertow. The fast-moving water swept him away.
Stay with Local News 8 and KIDK Eyewitness News 3 for the latest updates.