From email from Reclamation (Erik Knight):
The spring peak operation is nearing completion. Releases are currently being made to sustain half bankfull flow levels at the Whitewater gage, as well as to manage the forecasted runoff into Blue Mesa Reservoir. Releases from the Aspinall Unit have been around 5,500 cfs during the past week and that release rate will continue through Sunday, June 11th. Flows in the Gunnison River through the Black Canyon are currently around 4,500 cfs and can be expected to stay near this level through Sunday, June 11th. Starting on Monday, June 12th flows will begin to ramp down towards the summertime release level. This should result in flows in the Gunnison River through the Black Canyon around 900 cfs to 1,000 cfs once the ramp down is completed on Monday, June 19th.