23rd March and beyond

I am sticking my neck out and calling out that the major selling wave will probably hit us after 23rd March but before the end of the month! I am already positioned short...if the market sells off tomorrow on Fed announcement, I will start booking profits and wait for the market to bounce even higher before going total in on the short side.. again most like after 23rd March... Why so specific? I have an indicator that I am looking at, and if the market does indeed sell off, then I have a lot of thinking to do about that indicator... Lets see...