The Bureau of Reclamation on Thursday began making its second big flow boost in a week through Yellowtail Dam.

On Tuesday, flows to the Bighorn River went up 1,000 cubic feet per second to 7,200 cfs. On Thursday, flows will increase another 1,500 cfs. By Friday, the flows will be up to 8,700 cfs.

The increase was in response to increased outflows from the upriver reservoirs in Wyoming – Boysen and Buffalo Bill.

The lake level in Bighorn Lake is 3,634.2 feet of elevation. The top of the normal conservation pool is 3,640.