From email from Reclamation (Erik Knight):
Releases from Crystal Dam will be reduced from 2000 cfs to 1900 cfs on Monday, July 28th at 10:00 AM. Flows in the lower Gunnison River are currently above the baseflow target of 1500 cfs. The weather forecast calls for rain in the basin over the next few days and the river forecast shows flows continuing to increase during this time.
Pursuant to the Aspinall Unit Operations Record of Decision (ROD), the flow target in the lower Gunnison River, as measured at the Whitewater gage, is 1500 cfs for August.
Currently, diversions into the Gunnison Tunnel are 1100 cfs and flows in the Gunnison River through the Black Canyon are around 1000 cfs. After this release change Gunnison Tunnel diversions will still be 1100 cfs and flows in the Gunnison River through the Black Canyon should be around 900 cfs. Current flow information is obtained from provisional data that may undergo revision subsequent to review.
More Aspinall Unit coverage here.