River flows as of August 17

Cowlitz River below Mayfield Dam - 2,380 cubic feet per second

Nisqually River below LaGrande Dam - 985 cubic feet per second

Wynoochee River above Black Creek - 211 cubic feet per second

Wynoochee River at Grisdale - 264 cubic feet per second

Green River at Palmer (Tacoma Water's headworks) - 143 cubic feet per second

North Fork Skokomish River below Cushman Dam No. 2 - 124 cubic feet per second 

Check out water safety resources. River flows can change at any time.

Learn more about Cowlitz River flows

Subscribe to available Water Alerts provided by the US Geological Survey.

Lake levels and boat launches as of August 17

Riffe Lake - 733.7 feet of elevation (maximum of approx. 749 ft)
  • The new Mossyrock Park boat launch is open. The boat launch parking lot will be closed for chip sealing on Friday, Aug. 10, from about 6 a.m. to noon.
  • Taidnapam North boat launch is open.
  • Kosmos boat launch and parking lot are closed.
  • Taidnapam Park boat launch is closed.
  • Taidnapam Park swim area is closed.
  • Mossyrock Park swim area is open.

Alder Lake - 1,185.4 feet of elevation (maximum of 1,207 feet)
  • Alder Lake Park boat launch is open. 
  • Rocky Point boat launch is closed.
  • Stacel Point swim area is open.
  • Sunny Beach swim area is not useable.
Mayfield Lake - may fluctuate 4 feet weekly, between 421 and 425 feet of elevation (maximum of 425 feet)
  • Mayfield Lake Park boat launch - normally usable for medium-sized watercraft
  • Visually check launch conditions  before launching

Lake Cushman - 736.6 feet elevation (maximum of 738 feet)
  • Skokomish Park at Lake Cushman boat launch is open.
  • The Lake Cushman Resort and its marina are closed. The former owner decided to terminate 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.
  • The Lake Kokanee boat launch is open.
Wynoochee Lake -  776.6 feet elevation (maximum of 800 feet)

Coho Campground is open. 

To hear this information as a recording, call 1-888-502-8690.

Get current campfire rules on the Parks & Recreation homepage.