Upper/upper = Elkmont to sinks (class 3)
Upper = sinks to elbow (class 3+)
Lower = Elbow to Y (class 2)
Unfortunatly it didn't rain very much this week and the little is too low. You realy need near 3' on the Townsend Gauge for any of this. I'd guess its below 2' right now.
The best runs in the area this weekend are going to be Big South Fork and Pigeon Dries. The dries will be high.