Colorado River near Granby, CO
River level and flood forecast · Grand County
Normal1.1 ftas of Mon 1:40 PM
The river is 4.9 ft below flood stage (6 ft).
Forecast to rise to 3.3 ft Mon 7 AM, below the 6 ft flood stage.
Flow: 53 cubic feet per second (USGS).
The last 7 days and the forecast
NWS forecast issued Mon, Oct 12, 9:08 AM. Forecasts change as rain falls and as upstream water arrives.
Flood stages
| Major flood stage | 9 ft |
| Moderate flood stage | 7 ft |
| Flood stage | 6 ft |
| Action stage | 5 ft |
| Record crest (June 22, 1996) | 5.76 ft |
What floods at each level
From the National Weather Service, highest first.
- 10 ftExtensive life-threatening flooding will occur along the Colorado River. U.S. Highway 34 floods north of Granby.
- 9 ftMajor flooding occurs with homes and businesses impacted. The railroad tracks at Windy Gap flood.
- 8 ftHouses flood north of Granby.
- 7.5 ftAgricultural and pasture lands are inundated. Debris in the river could block flows at bridges.
- 7 ftWater flows over U.S. Highway 40 at Windy Gap. Road closures are expected.
- 6.5 ftFloodwaters begin to impact secondary roads. Outbuildings flood north of Granby.
- 6 ftWidespread lowland and meadow flooding occurs along the river.
- 5 ftWater begins to overflow into low lying areas along the river.
Highest crests on record
- 5.76 ft — June 22, 1996
- 5.55 ft — June 18, 2015
- 5.47 ft — June 26, 2011
- 5.39 ft — July 11, 1983
- 5.04 ft — July 1, 1984
Recent crests: 1.88 ft (May 6, 2021) · 1.95 ft (May 30, 2020) · 4.2 ft (July 15, 2019) · 1.97 ft (July 23, 2018) · 4.45 ft (June 22, 2017)
Up and down the river, and nearby
- UpstreamColorado River below Bakers Gulch, CO
- Willow Creek (CO) below Willow Creek Reservoir, CO
- Colorado River at Windy Gap, CO
- St. Louis Creek (CO) above Fraser, CO
- Fraser River (CO) at Winter Park, CO
- Williams Fork (CO) below Williams Fork Reservoir, CO
- Williams Fork (CO) near Leal, CO
- Muddy Creek (NC CO) above Kremmling, CO
Not an official source. River levels, forecasts, flood stages and impacts are from the National Weather Service (CBGC2); flow from the U.S. Geological Survey. Readings are provisional. In a flood, follow your local officials and the NWS at weather.gov.