SNOFLO
 



GROS VENTRE RIVER

RIVER LEVELS
April 11, 2025

Fire Weather Watch
2025-04-12T20:00:00-06:00

* AFFECTED AREA...Fire Weather Zones 214, 216, 238, 239, 241, 242, 243, 246 and 247. * TIMING...From Saturday afternoon through Saturday evening. * WINDS...Southwest 10 to 20 mph with gusts up to 40 mph. * RELATIVE HUMIDITY...As low as 9 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.


Total streamflow across the Gros Ventre River was last observed at 236 cfs, and is expected to yield approximately 468 acre-ft of water today; about 82% of normal. Average streamflow for this time of year is 287 cfs, with recent peaks last observed on 2011-07-01 when daily discharge volume was observed at 8,710 cfs.

Maximum discharge along the river is currently at the Gros Ventre River At Kelly Wy reporting a streamflow rate of 236 cfs. However, the streamgauge with the highest stage along the river is the Gros Ventre River At Zenith Wy with a gauge stage of 18.35 ft. This river is monitored from 2 different streamgauging stations along the Gros Ventre River, the highest being situated at an altitude of 6,650 ft, the Gros Ventre River At Kelly Wy.

Last Updated 2025-04-11
Discharge Volume 468 ACRE-FT
Streamflow 236.0 cfs
+29.0 cfs (+14.01%)
Percent of Normal 82.11%
Maximum 8,710.0 cfs
2011-07-01
Seasonal Avg 287 cfs
       
River Streamflow Levels
Created with Highcharts 8.0.0Total River Discharge (cfs)2. Apr3. Apr4. Apr5. Apr6. Apr7. Apr8. Apr9. Apr10. Apr11. Apr0100200300
Seasonal Discharge Comparison
Created with Highcharts 8.0.0Total River Discharge (cfs)16. Mar30. Mar13. Apr27. Apr11. May25. May8. Jun22. Jun6. Jul20. Jul3. Aug17. Aug31. Aug14. Sep28. Sep02k4k6k
Maximum Streamflow Discharge
Created with Highcharts 8.0.0YearAnnual Peak Discharge(cfs)201020112012201320142015201620172018201920202021202220232024202520261001k10k100k

Weather Forecast

Streamflow Elevation Profile
Created with Highcharts 8.0.0

The Gros Ventre (English: ; from French: "big belly"), also known as the Aaniiih, A'aninin, Haaninin, and Atsina, are a historically Algonquian-speaking Native American tribe located in north central Montana. Today the Gros Ventre people are enrolled in the Fort Belknap Indian Community of the Fort Belknap Reservation of Montana, a federally recognized tribe with 3,682 enrolled members, that also includes Assiniboine people or Nakoda people, the Gros Ventre's historical enemies. The Fort Belknap Indian Reservation is in the northernmost part of Montana, just south of the small town of Harlem, Montana.

Regional Streamflow Levels