Today will be the calm before the storm. Clouds will be on the increase today before precipitation moves in from north to south during the day tomorrow.
A relatively warm southwest flow will provide for a nice Saturday. Although warm advection clouds start moving in this afternoon. The trough itself will drop into the great basin starting tomorrow morning. This system has a well-defined cold front that will gradually drop through northern Utah tomorrow. The front should reach SLC by early afternoon with precipitation along and behind it. Snow levels will initially be high (9K feet), but will rapidly drop behind the front to 6K feet or lower.
A cold northwest flow will continue through the day on Monday and possibly into Tuesday. Occasional reinforcing waves will move into the area in the flow. With cold air, lake enhancement will again be a possibility. This system is not particularly strong or moist, but it is moving rather slowly and the long duration could cause decent snowfall accumulations. Highest snowfall amounts look to be in the Uintas where 4-8″ is possible. The Cottonwoods could see 3-6″ with 1-4″ elsewhere in the Wasatch.
Models generally clear us out on Tuesday. Euro then drops another weak system into the area later next week while the GFS keeps most of the energy well to our east. Ridge of high pressure amplifies along the west coast. Not even going to try to guess what happens beyond next weekend as models have been all over the place lately. Overall, it looks like mostly dry, but cool Fall weather will continue for the foreseeable future.