On the Metolius River, 2 of my most trusted sources (Chester and Phil S) shared some super good intel on what they are seeing. For hatches there are 2 yellow mayflies to match, both dwindling quickly though. PMD’s #16 (3 tails) and Cinygmula #14-16 (2 tails). We should see hatches of both of these for the rest of November, and I’ve actually seen fishable PMD hatches in December at the Idiot Hole.
The Metolius River is such a mystery and I love that about this river! Blue Wing Olive hatches day in and day out for the next 3 to 4 months will be the most important mayfly we expect to see daily on the Met. Usually during deep fall and winter, BWO’s are a size 18 and have pretty tall wings, but stock some #20 and #22 and and a few #16’s in the box. Include a Knock Down Dun, Sparkle Dun, Captive Emerger, RS2, Comparadun and Parachutes for surface feeders, and Micro Mayflies and 2 Bit Hookers for really specific nymph matches.

Mayfly hatches have been most prevalent from about 11:30 to 1 or 2. The above clip is the PMD hatch from December and serves a reminder to expect the unexpected on Spring Creeks. Hatch durations are getting condensed in the colder weather. Also, on windy days the amount of needles from the trees can really screw up the dry fly action, especially in the eddies. So watch that wind. Nymphs don’t care about needles floating around the eddies messing up your dry fly drift. 
There are quite a few caddis hatching, and while it may seem to be a trickle amount to us, I believe the fish see a lot of caddis pupa in the drift each day! It took me a long time to learn this, or accept it, but small caddis pupa are a big part of the diet of Metolius fish all year, and not just the big summer and fall hatch months. Tan , Olive and Grey Pupa #12-16 and Orange #8-12 will serve you well. 
Stonefly Nymphs are golden. Literally. Use a golden stone all winter, every day. I’ve said it before and I’ll I’ll remind you here again, if you had 2 flies to nymph with on the Metolius from November 15th to March 15th and kept it as a #10 Golden Stone nymph and a #14 Orange Egg, you’d be happy. 
I pressed Mattias on some Bull Trout intelligence for today’s report, and he said “bro, I am only fishing the Deschutes now”. My man is letting us down. So I don’t have any streamer fishing perspectives on Bull’s this week, but on the Nymph front, Phil caught some awesome Bull’s this week euro nymphing an egg and caddis pupa. 
It looks like some really wet days ahead starting tomorrow and snow on Monday! Fishing the Metolius in the snow is a gift for the senses, so I hope some of you have a chance to get out and be in the quiet surrounding and the special light that only come in the winter on days like that. 
Remember the river is open from Allingham Bridge to Lake Billy Chinook, and closed from the headwaters to Allingham for winter.