Rivers in Colorado

Colorado River near Granby

Grand County, ColoradoNWS CBGC2USGS 09019500Boulder office

Below flood stage
1.55ftStage

Observed Tue, Sep 22, 2:40 AM MDT

Flood stage
6.00 ft
Forecast crest
3.66 ftTue, Sep 22, 3:00 AM MDT
Record crest
5.76 ft1996

Open the live map with the river flood outlook

Flood stages and impacts

CategoryStage
Major flood9.00 ft
Moderate flood7.00 ft
Minor flood6.00 ft
Action5.00 ft
  1. 10.00 ftExtensive life-threatening flooding will occur along the Colorado River. U.S. Highway 34 floods north of Granby.
  2. 9.00 ftMajor flooding occurs with homes and businesses impacted. The railroad tracks at Windy Gap flood.
  3. 8.00 ftHouses flood north of Granby.
  4. 7.50 ftAgricultural and pasture lands are inundated. Debris in the river could block flows at bridges.
  5. 7.00 ftWater flows over U.S. Highway 40 at Windy Gap. Road closures are expected.
  6. 6.50 ftFloodwaters begin to impact secondary roads. Outbuildings flood north of Granby.
  7. 6.00 ftWidespread lowland and meadow flooding occurs along the river.
  8. 5.00 ftWater begins to overflow into low lying areas along the river.

Crest history

64 crests on NOAA’s list since 1950.

#DateStage
1June 22, 19965.76 ft
2June 18, 20155.55 ft
3June 26, 20115.47 ft
4July 11, 19835.39 ft
5July 1, 19845.04 ft
6June 12, 19974.89 ft
7June 22, 20174.45 ft
8June 22, 20164.28 ft
9July 1, 19734.25 ft
10July 15, 20194.20 ft
11June 21, 19744.03 ft
12July 1, 19984.02 ft
13July 1, 19994.02 ft
14June 25, 19713.88 ft
15August 1, 20143.78 ft
16June 1, 20003.59 ft
17July 3, 19623.44 ft
18July 24, 19953.30 ft
19August 26, 19933.25 ft
20July 2, 19862.46 ft
21June 23, 19522.10 ft
22May 2, 19852.03 ft
23July 23, 20181.97 ft
24May 30, 20201.95 ft
25May 6, 20211.88 ft

Most recent crests

  • May 6, 2021: 1.88 ft
  • May 30, 2020: 1.95 ft
  • July 15, 2019: 4.20 ft
  • July 23, 2018: 1.97 ft
  • June 22, 2017: 4.45 ft
  • June 22, 2016: 4.28 ft
  • June 18, 2015: 5.55 ft
  • August 1, 2014: 3.78 ft
  • May 1, 2013: 1.78 ft
  • July 5, 2012: 1.70 ft

Nearby

Upstream, downstream and the gauges around this one.

What this means

Forecasts by the Colorado Basin River Forecast Center. Forecasts are issued routinely year-round. Gauge reading affected by reservoir operations. Stage data may not be available during winter months.

Sources

Stage, flood stages, impacts and crest history from NOAA’s National Water Prediction Service. Streamflow and the daily record from the U.S. Geological Survey.