This is perfect winter fishing weather on the Yakima. The fishing has been good to great depending on the day. Streamers on the retrieve and swing has definitely been worthy. In addition the nymphing has been consistent.
Nymphs of choice
#8-12 Stonefly Nymphs - Pats Stone, 'Skwala Like'
#10-12 San Juan Worms in various colors
#14-18 Prince Nymphs and PT's
#18-22 Zebra Midges
There have been some fish eating on the surface in isolated zones. These fish can be duped by 10-14 foot leaders and #20 Paramidge adults and emergers.