Little rough on the Yakima currently - The clarity report shows the situ;
Clarity Report
Upper Proper - 1
Upper Flatlands - 1.5
Upper Canyon - 1
Farmlands - 1 to 1/2
Lower Canyon - 1/2 foot to zero
March Browns are definitely game on......Therefore, even though the clarity is terrible. It is possible to find a few fish during the hatch feeding on the surface; even in the mud. No guarantees. 12noon to 2 pm will be you best bet:)