OLYMPIA — Returns of hatchery Chinook and coho salmon to Washington’s rivers and ocean waters are expected to vary this year, but low returns of wild salmon projected to several rivers will again make setting fisheries a challenge.

That was the prediction of fishery managers at a recent public meeting, when forecasts for Chinook, coho, sockeye, chum and pink salmon were released. The forecasts were developed by the Washington Department of Fish and Wildlife and treaty tribes.

The forecast meeting in Olympia marks the starting point for developing 2017 salmon-fishing seasons in Puget Sound, the Columbia River and Washington coastal areas, according to WDFW. Fishery managers have scheduled a series of public meetings through early April before they plan to finalize seasons later that month.

Unfavorable environmental conditions, such as warm ocean water or flooding in rivers, have reduced the number of salmon returning to Washington’s waters, especially when compared to some of the more abundant returns of recent years, said Kyle Adicks, salmon fisheries policy lead for WDFW.

“Some salmon runs are expected to return in higher numbers over last year, when we forecast historic low numbers for several stocks,” Adicks said. “But, for the most part, forecasts are at about average or lower than average, which means we will once again need to limit fisheries in some areas to protect weak returns of wild fish.”

About 386,000 Columbia River coho are projected to return this year, which is similar to last year’s forecast. Only 223,000 coho actually returned last year to the Columbia River, where some coho stocks are listed for protection under the federal Endangered Species Act.

About 582,600 fall Chinook salmon are expected to return to the Columbia River, which is similar to last year’s actual return. While that’s significantly lower than the record 1.3 million fish that returned in 2015, this year’s forecast is considered a fairly good run of fall Chinook, Adicks said.

Roughly 260,000 “upriver brights” are headed for areas of the Columbia River above Bonneville Dam. The forecast for these fall Chinook is the lowest since 2009.

About 250,000 hatchery Chinook are expected to return this year to the Lower Columbia River — nearly 124,000 more fish than actually returned last year. Those salmon, known as “tules,” are the backbone of the recreational ocean Chinook fishery. For the most part, tules are doing well considering recent unfavorable ocean conditions, Adicks said.

Meanwhile, this year’s run of pink salmon, which mostly return to Washington’s waters only in odd-numbered years, is expected to be about 80 percent lower than the 10-year average. About 1.15 million pink salmon are forecast to return to Puget Sound this year.

“This is going to be another challenging year for setting salmon fishing seasons,” Adicks said. “We’ll rely heavily on input from the public to set priorities for fisheries.”

Adicks encourages anglers, commercial fishers and others interested in Washington state salmon fisheries to attend one of nearly 20 public meetings scheduled on setting salmon seasons.

A meeting schedule, salmon forecasts, and information about the salmon season-setting process are available on WDFW’s website at wdfw.wa.gov/fishing/northfalcon/. An online commenting tool is available on the website.

The first “North of Falcon” meeting is this Friday, March 17, 9 a.m. to 3 p.m.; General Administration Auditorium, 210 11th Ave. SW, Olympia. A meeting with more a specific focus on Columbia River and Washington Coast fisheries is set for March 24, 9 a.m. to 3 p.m.; Vancouver Water Resources Education Center, 4600 SE Columbia Way, Vancouver, Wash.

Also of local interest will be a discussion of Willapa Bay fisheries on March 23, 6 p.m. to 8 p.m.; Raymond Elks Club, 326 Third St., Raymond.

Additional public meetings have been scheduled into April to discuss regional fishery issues. Input from these regional discussions will be considered as the season-setting process moves into the “North of Falcon” and PFMC meetings, which will determine the final 2017 salmon seasons.

The PFMC is expected to adopt final ocean fishing seasons and harvest levels at its April 7-11 meeting in Sacramento, Calif. The 2017 salmon fisheries package for Washington’s inside waters is expected to be completed by the state and tribal co-managers during the PFMC’s April meeting.