There are winter runs in the willamette ABOVE Eugene, and they go up some creeks. Primarily the willamette and mckenzie are summer runs, but there is a push of winter nates. Siuslaw is your best bet though, and lake creek, when the slaw is blown lake creek is usually fishable. The siuslaw fishes best between 5-7 but anything less than 10 on the drop is decent. This weekend should be good on the upper river with a float and jig or eggs, drifting the upper river is frustrating there's a lot of snags, but it can produce too. There's a lot of water along stagecoach road that is accesible by bank, not many boats go down there, so it's not heavily pressured like the upper 2 miles from whittaker to wildcat. Last weekend it was 18 feet, so, who knows what it's going to look like clarity wise, my guess is a murky green, so go with lures/bait that have more contrast. As far as jigs, Black and red, pink and white, chartreuse and purple, all have worked for me when it's dirty over there. Be prepared to bring your own rock to stand on if you're going this weekend, the weekend warriors got robbed by mother nature last weekend.