We have the Supercomputer, but it is for research work. Running any computer model takes a lot of computing time and effort, and I have work that has to get done as well (the MM5 runs partially on my machine) beyond the two model runs. We run it on 8 processors with plenty of memory, but it still takes quite a bit of time to get everything done. It could be shorter if we had more computing power, which we might get, but for now -- that's why. It comes out so late -- like the 12z run is finishing up now -- because we wait for the GFS initial conditions to come out, which usually is at or after 12z, to start up the model.