Try that searun thing. All my biggest salt fish have come in Nov./Dec.

Otherwise, as Stam says, go fishing anyway. I've not caught much in the high water, but fishing is usually interesting at high flows. One time, I decided to try the Cowlitz when it was flowing about 10K and the color of creamed coffee. There was a car in the river below Blue Creek, and I nymphed up a nice steelie out of the sheltered water behind it. Just like a big boulder in the Hoh. Very memorable, to say the least, and not another soul around.

Otherwise, stay home and be a cranky bastard like salmosalar. Not as fun as fishing, but somehow strangely gratifying.