River Flows & Lake Levels
River flows as of Nov. 22
Cowlitz River below Mayfield Dam – about 3,560 cubic feet per second (cfs)
Mayfield flow forecast: Current discharge is about 3,500 cfs. We plan to stay at 3,500 cfs through the weekend.
Nisqually River below LaGrande Dam – 748 cfs
Wynoochee River above Black Creek – 633 cfs
Wynoochee River at Grisdale – 438 cfs
Green River at Palmer (Tacoma Water’s headworks) – 694 cfs
North Fork Skokomish River below Cushman Dam No. 2 – 310 cfs
Check out water safety resources. River flows can change at any time.
Subscribe to available Water Alerts provided by the US Geological Survey.
Lake levels and boat launches as of Nov. 22
Riffe Lake – 713.6 feet of elevation (maximum of approx. 749 ft)
Learn about changes to Riffe Lake levels.
Mossyrock Park boat launch is open. The launch dock is no longer in the water. Only one lane is usable.
Taidnapam North boat launch is closed.
Kosmos boat launch and parking lot are closed.
Taidnapam Park boat launch is closed.
Mossyrock Park swim area is open.
Alder Lake – 1,153.22 feet of elevation (maximum of 1,207 ft)
Alder Lake Park boat launch is closed.
Rocky Point boat launch is closed.
Stacel Point swim area is closed.
Sunny Beach Point swim area is closed.
Mayfield Lake – may fluctuate 4 feet weekly, between 421 and 425 feet of elevation (maximum of 425 ft)
Mayfield Lake Park boat launch – normally usable for medium-sized watercraft
Visually check launch conditions before launching
Lake Cushman – 700.16 feet of elevation (maximum of 738 ft)
Skokomish Park at Lake Cushman boat launch is open.
The Lake Kokanee boat launch is open.
The Lake Cushman Resort and its marina are closed. The former owner decided to end the lease, so Tacoma Power is now evaluating options for future use of the site. No public access is allowed at this time. We apologize for any inconvenience. Get more information at MyTPU.org/Cushman.
Get current campfire rules on the Parks & Recreation homepage.