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Flow Monitoring Network

Nearly real-time streamflow and water quality data

Hover over one of the small icons on the map below to find a continuous monitoring station, and click to go see the latest values. Click the link in the pop-up box to go to the station page. Choose a regional map to take a closer look.

Using River and Stream Flow Data has further information on how to use this map.

Also, the Washington State Streamflow Summary Map displays current water levels compared to reference conditions.

Statewide | Southwest Region | Northwest Region | Central Region | Eastern Region

station filters active       active and historical       rain gage
map of Southwest Region

Southwest Region

37 stations (active)
29 Ecology stations
7 coop stations
Stand alone2
0 Ecology stations
0 coop stations
Manual stage height3
1 Ecology station
0 coop stations
Modeled flow station
0 Ecology stations

Descriptions of station types:

1. A telemetry station transmits data every three hours to the Department of Ecology Headquarters in Olympia, Washington. The data is logged every fifteen minutes and transmitted in three hour blocks to Ecology where it is automatically imported into the streamflow database and published to Ecology's website. The data is transmitted via either a GOES satellite transmitter or a standard dial-up modem.

2. A manual-stage-height station does not