While most of the reservoirs are close to full and couldn't handle the full snowmelt, the river systems downstream have generally dropped below flood stage.
So the plan is probably to ramp up reservoir releases to match the inflow from the melt, which should start up pretty good this week with the coming heat. Downstream rivers will rise but hopefully not flood.
A very quick melt, or more rain, could cause some problems in some places. Nobody seems to talk about it much, until it's too late.
The Rogue in southern Oregon is 50% more than normal at this time of year at 4,000 cfm, also 15 degrees cooler. Crater lake is still snow bound.