Greys River river
River streamflow levels
Daily aggregate streamflow across every monitored gauge along the Greys River. Use the range buttons to zoom in on a specific period.
Total streamflow
Sum of all monitored streamgauges · daily
Every streamgauge along the Greys River
All 1 USGS gauges Snoflo tracks for this river, with current flow, stage, recent change, percent of normal, and the gauge's all-time min / max. Click any header to sort. Cells are heatmapped relative to the column min/max -- darker blue = higher.
| Streamgauge▾ | Streamflow (cfs)▾ | Gauge stage (ft)▾ | 24h Δ (%)▾ | % Normal▾ | Min (cfs)▾ | Max (cfs)▾ | Elevation (ft)▾ |
|---|---|---|---|---|---|---|---|
|
Greys River Ab Reservoir Nr Alpine Wy
WY
USGS 13023000
|
928 | 2.40 | -4.2 | 48% | 52 | 7,230 | 5,704 |
Streamflow elevation profile
Each bubble is one gauge along the river, plotted by current streamflow (x-axis) vs elevation (y-axis), sized by gauge stage. Reading top-to-bottom traces the river from headwaters down to its mouth -- you can see flow accumulate as elevation drops.
Elevation vs streamflow
One point per monitored gauge · bubble size = gauge stage
Greys River
The Greys River is a 62-mile-long tributary of the Snake River, located in western Wyoming. Historically, the area was used by various Native American tribes, and later by fur trappers, miners, and ranchers. The river's hydrology is fed by snowmelt and precipitation, and it flows through the Bridger-Teton National Forest. The most significant reservoir on the river is the Little Greys River Dam, which was completed in 1986 and provides water for irrigation and recreation. The river is a popular destination for fishing, hiking, and camping, and the surrounding area is used for cattle grazing and farming. In recent years, concerns have been raised about the impact of recreational activities on the river's ecosystem, particularly regarding the use of off-road vehicles.
Recreation along the Greys River
Fishing access and paddle runs Snoflo tracks within the watershed.
Track the Greys River in the Snoflo app
Set per-gauge push alerts (e.g. "alert me when flow at the Russian R Nr Healdsburg crosses 5,000 cfs"), and Snoflo's iOS app pushes the moment USGS reports the crossing.
About the Greys River
Where does the data for the Greys River come from?
Streamflow and gauge stage data are sourced from the U.S. Geological Survey (USGS) National Water Information System. The aggregate flow shown at the top of the page is computed by Snoflo as the sum of all monitored gauges along the river.
How is "percent of normal" calculated?
Today's aggregate streamflow is compared to the historical average aggregate streamflow on this calendar day across the river's full record. 100% means right on average; values above 100% indicate above-normal flow (wet year); values below indicate below-normal (dry year or drought).
Why are some gauges showing very different flows?
Gauges along a river measure flow at different points: headwater gauges read what's coming off the snowpack or mountain runoff; downstream gauges integrate everything upstream, including tributary inputs. Wide spreads usually mean a tributary is contributing significantly between gauges.
What's the elevation profile chart showing?
Each bubble is one gauge along the river, plotted by streamflow (x-axis) and elevation (y-axis), sized by gauge stage. Reading top-down traces the river from headwaters to mouth -- you can see flow build as elevation drops.
Can I get alerts when a specific gauge crosses a threshold?
Yes -- alerts are managed in the Snoflo iOS app on a per-gauge basis. Open any individual streamgauge from the table above and favorite it to set a discharge threshold.