I fished the Yakima from a driftboat today. At about 10:30 am, we started from Bighorn. It was 26 degrees out and overcast. The brisk breeze did not help the casting or the temperature level. Ice in the guides was a problem all day. I caught 1 rainbow (about 10-12 inches) and one whitefish. My friend got skunked. We floated to Umtanum (spelling?) and the entire drift only took about 3 hours becase my friend got cold and we did not really stop to work over any of the good stretches. When we arrived at the take out, it was a balmy 34 degrees. We saw a couple trout rise to hit the surface, but we were fishing only nypmhs. Overall, it was a fun day, but dress warmly!