Normally, Flaming Gorge Reservoir receives 908,000 acre-feet from April through July.
The previous two high marks were in 1997, when it received 1.67 million acre-feet, and in 1986, when it received 2.2 million acre-feet.
This year, engineers are forecasting 2.26 million acre-feet.
"We are at 231 percent above average," Patno said. "We received significant amounts of snow last fall that saturated the soil up there and then froze. In mid-January we saw significant storms come through the system so it has made for the biggest year of snowpack and runoff for the upper Green."
The power plant started running at full capacity in early March and was increased to full bypass releases on March 30 to accommodate the water.
Normally the spring peak is around May 27, but Patno is estimating the current releases will remain through May and into June.
"There is a lot of water," she said.
What all this means for rafters is some unique opportunities.
Wood said her company was able to offer trips on the Dolores River in Colorado for the first time in 20 years with water levels averaging 2,000 to 4,000-plus in cubic feet of water per second.
The 33-mile route was a must-do before McPhee Dam was built in 2000, decreasing water levels to the point planning commercial trips was difficult.
This year was different.
"It's exciting to be able to run this," Wood said. "We've never known if it was going to be runnable again."
The Green River through Lodore Canyon is also running strong with the 8,000 CFS flow expected to continue, while the Yampa river and Cataract Canyon section of the Colorado through Canyonlands National Park will deliver big thrills, too.
Of course, the big thrills do come with cautions.