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Dungeness River Main Gauge
9/6/2025 7:49:48 PM

100 cfs

Critical Low

Dungeness River Flow Status

Dungeness River Flow Status

Welcome to the BETA version of the Dungeness River Flow app, created to provide the river’s streamflow and condition at a glance for the benefit of water managers, those who fish and recreate along the river, and anyone with an interest in watching real-time flow changes.

The widget’s background color means:

Flow (cfs) FROM	Flow (cfs) TO	Threshold Label/Colors Recommended Actions
0	62.5	Extreme LOW Restrict all water uses, as practical
62.5	120	Critical LOW Restrict outdoor water uses
121	238	Low Flow Conserve water
238	582	Adequate Flow
582	2700	High Flow
2700	4275	Flood Alert Take action to reduce flood risks
4275	6200	Minor to Moderate FLOOD Property damage/ public threat possible
6200	99999	Extreme FLOOD Evacuations may be necessary

The Dungeness River varies within a normal range by season. Streamflow also varies by the hour; for example, when the river rises quickly during a rainstorm. Rainfall and snowmelt have the most influence on streamflow, while tributary inflows and irrigation withdrawals increase and decrease flow, respectively.

In recent decades the average summer streamflow has decreased due to shrinkage of the mass of glacial ice and reduced average annual snowpack in the uppermost slopes of the Dungeness River watershed. (A watershed is the land draining to a single stream.) Summer flows that are lower than historical averages can be a problem for salmon migrating upstream to spawn as well as for farmers accustomed to diverting river water for irrigation. Recommended actions, for example when summer flows are in a Low category, help maintain healthy flows in the Dungeness River.

Please report problems with the app’s function to support@prophetechs.com.

Sources

Low flow thresholds are based on WAC 173-518, the instream flow and water management rule for the Dungeness River as well as formal agreements between state water resource managers with WA Dept of Ecology and Dungeness River water rights holders.

Flood flow thresholds are based on flow estimates translated from NOAA’s flood-stage categories, as shown at the National Water Prediction Service page for the upper Dungeness gauge (see https://water.noaa.gov/gauges/DRSW1)

The WA Department of Commerce Tribal Climate Resilience Grant program is supported with funding from Washington’s Climate Commitment Act. The CCA supports Washington’s climate action efforts by putting cap-and-invest dollars to work reducing climate pollution, creating jobs, and improving public health. Information about the CCA is available at climate.wa.gov.