The Cowlitz County Sheriff’s Office says that Thad Roberts, 32, of Kelso is missing and presumed drowned after a kayaking mishap in the Lewis River. Friends who had been salmon fishing with Roberts reported him as missing at about 10 pm on Saturday, saying that he got separated from them near the Cedar Creek Boat Ramp on Etna Road. Cowlitz County Deputies, the Marine Patrol and Clark County Fire Rescue started searching the river, and found his kayak about three-quarters of a mile downstream from where he was reported as missing. It’s noted that a personal flotation device was found with the boat, so it’s assumed that he was not wearing a life jacket. The search continued for several hours, then resumed on Sunday, without success. Authorities will meet this morning to discuss next steps, but it’s also noted that the Lewis River has risen more than five feet since the time that Roberts was first reported as missing.