May 21, 2018 Weekly Update - Missouri River Basin
System storage is currently 62.1 MAF, 6.0 MAF above the base of the Annual Flood Control and Multiple Use Zone. More than 60 percent of the 16.3 MAF of designated flood control storage remains available to capture runoff from mountain snowmelt and rainfall runoff. The NOAA CPC three-month precipitation outlook, which was updated last Thursday, shows equal chances for above-normal, below-normal, and normal precipitation over most of the Basin. Significant amounts of mountain snowpack have already melted due to the warmer-than-normal May temperatures. The service level is currently 50,000 cfs(15,000 cfs above full service); no change from the April 15 adjustment.