The U.S. Forest Service reported a “pretty significant hazard” that developed downstream from Redwood Bar river access on North Bank Chetco River Road.

The river has been high with recent storms and the system that moved in Friday could create a surge in the river level and bring down sediment and trees.

“We are working very closely with the state Marine Deputies to try and mitigate this before it becomes a serious hazard to boaters,” officials said in a press release. “In one area, a 30-foot-tall Douglas fir tree could end up (falling) across the river, creating a real mess.”

With the river projected to rise considerably this weekend, boaters and weather-watchers are urged to use extra caution when boating through this section of the river.

The agency will post warning notices at the boater registration station and the river access sites upstream.

The river level has steadily declined in the last week, and was flowing at 1,170 cubic feet per second Friday afternoon. Levels at Second Bridge were just over 2 feet, but the National Weather Service forecast that to increase to about 4.6 feet with the incoming storm.

Forecasts are for about an inch of rain throughout the weekend, with precipitation decreasing by Tuesday.