At 500 mb a large, cold trough (below) is digging into the West - as has been well-advertised by the models for a week or more. The system is bringing snow to the High Country - as per Old Faithful above, as well as strong winds to much of the West.
By a week from now - GFS forecast below - the trough is still lingering, with a closed low over Arizona and New Mexico. Question is whether or not this system will tap-into any moisture to bring precipitation to Arizona. The tropical system's moisture down to the south will be shunted off toward Texas. Best chance will be wrap-around moisture coming westward from east of the Continental Divide. In the mean time we can expect dry, gusty winds, and a turn toward cooler temperatures for the weekend.
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