From email from Reclamation (Erik Knight):
Releases from the Aspinall Unit will be increased from 500 cfs to 700 cfs on Saturday, April 30th. Then releases will be increased from 700 cfs to 900 cfs on Monday, May 2nd. Releases are being increased to correspond with the re-startup of diversions to the Gunnison Tunnel. Currently snowpack in the Upper Gunnison Basin is 91% of normal and the forecasted April-July runoff volume for Blue Mesa Reservoir is 80% of average.
Flows in the lower Gunnison River are currently above the baseflow target of 890 cfs. River flows are expected to stay at levels 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 890 cfs for April and May.
Currently, Gunnison Tunnel diversions are 125 cfs and flows in the Gunnison River through the Black Canyon are around 350 cfs. After this release change Gunnison Tunnel diversions will be around 525 cfs and flows in the Gunnison River through the Black Canyon will be near 350 cfs. Current flow information is obtained from provisional data that may undergo revision subsequent to review.