As we closer to the start of March, the storm track shifts to the south. A couple of storms had faded in and out of the models. Currently, the GFS and NoGAPs models for Saturday, March 1, align and show moderate storm moving quickly across Arizona.
Below is an image for the GFS model run by the National Center for Atmospheric Research. It shows up to half an inch of water falling around the Flagstaff area next Saturday.
We still have a week, so the outlook could change.