According to the long-range outlooks and GFS model, an intense low pressure system(now identified as 94E) will move up the west coast of Mexico and bring plenty of moisture next Sunday and Monday. It’s still a long ways out, but the GFS model and the 6-10 day outlook predict above average precipitation. It has been consistent for several model runs.
The last GFS model had the bulk of the precipitation falling in western Arizona. It’s not a sure bet, yet.