Here is a slightly different view of the same basic data
Everything Between the Dark Seperating lines flows into the Colorado. The Sevier, Provo, weber and Bear drainages go to Utah Lake and the Great Salt lake, while the south Eastern drainages go into the Rio Grande
The high Snow Water Equivalent (SWE) in the southern areas really doesn't mean a whole lot other than lack of drought, since the typical SWE is really small, so 150% of really small number is still pretty meager.
This Graph shows the amount of snowpack vs the "Average" in the Lake Powell watershed over the past 10 years. That water will eventually flow through Powell into Mead and down the Colorado into SoCal.
Our Runoff (or if you prefer R U N N O F T
has been almost exactly what the water managers would order. Warm Up to melt the lower elevations, then cooling to slow the flow. Warmup to melt the mid elevations, with more cooling.
then more warming for the upper elevation snowpack. this has reduced the peak flows, while spreading the run off over time, which will keep the upper lakes fuller longer, and hopefully the precip we've been getting will keep us from using reservoir water to water our lawns.