River Flood Monitoring

​You can see National Oceanic and Atmospheric Administration (NOAA) river level statistics and predictions by selecting from the list of rivers below.

Each river has one or more gages monitoring water levels, and has a description of where the gage is located along the river. Refer to the gage that is closest to the area you are interested in monitoring.

Next to each gage graph is a chart summarizing flood levels and historical information.

Click here to see a page showing all gage graphs for quick reference.

Deschutes River

Skookumchuck River

Nisqually River

Black River

Chehalis River

Note: Flood prediction is not an exact science. Although gage readings and historical data are excellent forecasting tools, please remember that rivers continually change. There are also local factors that can contribute to flooding such as stream and creek discharge into a river, snowmelt and damming caused by fallen trees and other debris. Therefore, during flood situations floodplain residents should not rely solely on gage readings and historical flood levels, but should keep an eye on the river and stay tuned to local media reports.

During flood situations, Thurston County Emergency Management posts additional information and media releases on its emergency information page.