Based on 64 years of data the average for the Cowlitz below Mayfield is around 9,000 so it's on the low side right now. With the last 10 days of pretty dry weather they're letting enough water through to supply power needs while conserving water to assure a full lake (and steady power supply) come summertime. The Cow system needs rain now just like most other systems. There's a fine line for water/power managers to maintain adequate lake levels for future power use versus over filling Riffe Lake just in time for a giant storm and risking flooding.