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* AFFECTED AREA...Fire Weather Zones 214, 216, 241, 246 and 247. * TIMING...Until 7 PM MDT this evening. * WINDS...West 15 to 30 mph with gusts up to 40 mph. * RELATIVE HUMIDITY...8 to 15%. * IMPACTS...Conditions will be favorable for rapid fire spread. Avoid outdoor burning and any activity that may produce a spark and start a wildfire.
Total streamflow across the
Bighorn River
was last observed at
4,482
cfs, and is expected to yield approximately
8,890
acre-ft of water today; about 33%
of normal.
River levels are low and may signify a drought.
Average streamflow for this time of year is
13,452 cfs,
with recent peaks last observed
on
2023-06-26 when daily discharge volume was observed at
66,500 cfs.
Maximum discharge along the river is currently at the
Bighorn R At Worland Wyo
reporting a streamflow rate of 4,350 cfs.
However, the streamgauge with the highest stage along the river is the
Bighorn River Near St. Xavier
with a gauge stage of 59.72 ft.
This river is monitored from 5 different streamgauging stations along the Bighorn River, the highest being situated at an altitude of 4,051 ft, the
Bighorn R At Worland Wyo.
| Last Updated | 2025-04-17 |
| Discharge Volume | 8,890 ACRE-FT |
| Streamflow |
4,482.0 cfs
-2151.0 cfs (-32.43%) |
| Percent of Normal | 33.32% |
| Maximum |
66,500.0 cfs
2023-06-26 |
| Seasonal Avg | 13,452 cfs |
The Bighorn River is a tributary of the Yellowstone, approximately 461 miles (742 km) long, in the states of Wyoming and Montana in the western United States. The river was named in 1805 by fur trader François Larocque for the bighorn sheep he saw along its banks as he explored the Yellowstone.The upper reaches of the Bighorn, south of the Owl Creek Mountains in Wyoming, are known as the Wind River. The two rivers are sometimes referred to as the Wind/Bighorn. The Wind River officially becomes the Bighorn River at the Wedding of the Waters, on the north side of the Wind River Canyon near the town of Thermopolis. From there, the river flows through the Bighorn Basin in north central Wyoming, passing through Thermopolis and Hot Springs State Park.
At the border with Montana, the river turns northeast, and flows past the north end of the Bighorn Mountains, through the Crow Indian Reservation, where the Yellowtail Dam forms the Bighorn Lake reservoir. The reservoir and the surrounding canyon are part of the Bighorn Canyon National Recreation Area.
The Little Bighorn River joins the Bighorn near the town of Hardin, Montana. Approximately fifty miles farther downriver, the Bighorn River ends where it joins the Yellowstone.
