Looking at this map: https://www.usbr.gov/UC_SnowMap/ I am very pumped to see the high snow pack totals right now, but it got me thinking. Which of these drainages are the most important? Which ones produce the most runoff for Lake Powell? I'm too lazy to look up the exact numbers, but I know some of those drainages don't contribute much to the total amount of water for Lake Powell. For example, the snow pack in Southeastern Utah is a small fraction of the water that the snow pack from the Upper Colorado. Does anyone have some numbers to show in order from most water contribution to least from the drainages that contribute to Lake Powell? The impetus for this question was seeing that the Yampa/White drainage was the lowest and only at 121% right now.