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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

43 stations (active)
31 Ecology stations
11 coop stations
 Stand alone2
0 Ecology stations
0 coop stations
 Manual stage height3
1 Ecology stations
1 coop stations
 Modeled flow station4
0 Ecology stations
 station IDstation name
17B050  Chimacum Cr. @ mouth 
17D060  Little Quilcene R. nr mouth 
17E060  Snow Cr. @ WDFW 
17F050  Salmon Cr. @ WDFW 
17G060  Tarboo Cr. nr mouth 
18A050  Dungeness R. nr mouth 
18B070  Elwha River Nr Port Angeles 
18C150  Morse Cr. blw Aqueduct 
18F250  Agnew Irrigation Ditch nr Sequ... 
18H250  Sequim/Prairie Irrigation Ditc... 
18J250  Highland Irrigation Ditch nr S... 
18K250  Independent Irrigation Ditch n... 
18P070  McDonald Cr. @ Hwy 101 
18R250  McDonald Irrigation Ditch @ Di... 
19C060  West Twin R. nr mouth 
19D070  East Twin R. nr Twin 
19E060  Deep Cr. nr mouth 
19H080  Clallam R. nr Clallam Bay 
19J100  NF Sekiu River near RM 2.4 
20A070  Sol Duc R. nr Quillayute 
22D110  Wishkah R. nr Nisson 
23A120  Chehalis River @ Centralia 
 station IDstation name
23A190  Chehalis abv Pe Ell 
23B070  Newaukum NR Chehalis 
23B120  SF Newaukum River @ Jorgensen ... 
23B190  South Fork Newaukum River @ No... 
23E060  Black R. @ Hwy 12 
23H060  Salzer Creek @ Airport Rd 
23I070  Bunker Creek @ Ceres Hill Rd 
23J070  Stearns Creek @ Twin Oaks Rd 
23K060  South Fork Chehalis @ Hwy 6 
23L070  Dillenbaugh Creek at Riverside... 
24N070  Chinook River at Chinook Valle... 
24N100  Chinook River near Houchen St 
25B060  Grays R. nr mouth 
25C060  Elochoman River @ Monroe Dr 
25D050  Germany Cr. @ mouth 
25E060  Abernathy Cr. nr mouth 
25F060  Mill Cr. nr mouth 
26C075  Coweeman R. nr Kelso 
27B070  Kalama R. nr Kalama 
28B080  Washougal R. @ Hathaway Park 
29C100  Wind R. @ Stabler 

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 contain a continuous record. A manual-stage-height station consists of a series of periodic gage readings related to a series of instream flow measurements. Gage readings are from either a standard staff gage, wire weight gage (WWG) or from a reference point (RP). An RP is a point located somewhere over the wetted width of the station cross-section where a measurement can be made to the water surface. The correlation between these gage readings and the instream flow measurements is used to develop a rating table for the site.