From email from the US Bureau of Reclamation (Erik Knight):
“Releases from Crystal Dam will be decreased from 950 cfs to 450 cfs on Friday, October 31st between 10:00 AM and 2:00 PM. The Uncompahgre Valley Water Users Association will be shutting down diversions at the Gunnison Tunnel on Friday. Flows in the lower Gunnison River are currently above the baseflow target of 1050 cfs. River flows are expected to stay above the baseflow target for the foreseeable future.
Pursuant to the Aspinall Unit Operations Record of Decision (ROD), the baseflow target in the lower Gunnison River, as measured at the Whitewater gage, is 1050 cfs for September through December.
Currently, diversions into the Gunnison Tunnel are around 550 cfs and flows in the Gunnison River through the Black Canyon are around 350 cfs. After this release change Gunnison Tunnel diversions will be zero and flows in the Gunnison River through the Black Canyon will be around 450 cfs.