Red Flag Warning
2026-03-13T20:00:00-06:00

* AFFECTED AREA...Fire Weather Zones 238, 239, 240, 241, 242, 243, 244, 245, 246, 247, 248, 249, 250 and 251. * TIMING...For the first Red Flag Warning, until 8 PM MDT this evening. For the second Red Flag Warning, from 11 AM to 9 PM MDT Saturday. * WINDS...Today, west winds 15 to 25 mph with gusts 25 to 35 mph. On Saturday, west winds 20 to 30 mph with gusts 35 to 60 mph, strongest west of I-25. * RELATIVE HUMIDITY...Today, 12 to 17 percent. On Saturday, 8 to 15 percent. * IMPACTS...Conditions will be favorable for rapid fire spread. Avoid outdoor burning and any activity that may produce a spark and start a wildfire.


Greys River River Levels

Last Updated: March 13, 2026

The Greys River is a 62-mile-long tributary of the Snake River, located in western Wyoming.


Summary

Maximum discharge along the river is currently at the reporting a streamflow rate of cfs. This is also the highest stage along the Greys River, with a gauge stage of ft at this location. This river is monitored from 1 different streamgauging stations along the Greys River, the highest being situated at an altitude of ft, the .




15-Day Weather Outlook


       
River Streamflow Levels
Streamgauge Streamflow Gauge Stage 24hr Change (%) % Normal Minimum (cfs) Maximum (cfs) Air Temp Elevation
Greys River Ab Reservoir Nr Alpine Wy
USGS 13023000
310 cfs 1.45 ft -4.62
Seasonal Discharge Comparison
Maximum Streamflow Discharge
Streamflow Elevation Profile

The Greys River is a tributary of the Snake River, flowing through western Wyoming in the United States. The river is about 62 miles (100 km) long, starting high up in the Wyoming Range, 45 miles (72 km) south of the town of Alpine in Lincoln County. The river eventually flows into the Snake River in the Snake River Canyon, joining it just east of Alpine. The Greys River is generally a rushing mountain stream that separates the high Wyoming Range (east) from the Salt River Range (west). It joins the Snake River just above the intersection of U.S. highways 89 and 26. Just a short distance downriver from the confluence of the two rivers, the Snake widens quickly and passes through Alpine and enters the Palisades Reservoir. The largest tributary of the Greys River is the Little Greys River.
In 1997, Greys River hosted the second round of the World Fly Fishing Championships.