South Platte River at Roscoe
Highest listed crest 12.21 ftFlood stage 9.0 ft46 crests since 1983
The South Platte River at Roscoe crested above flood stage 12 times among the 46 crests the National Weather Service lists from 1983 to 2023. The highest, 12.21 ft on September 21, 2013, was moderate flooding, 3.21 feet above flood stage. 8 other gauges on the South Platte River crested above flood stage within a week of it, 8 at their own highest listed crest.
The gauge
- Highest listed crest
- 12.21 ft
- September 21, 2013; 19,100 cubic feet per second
- Flood stage
- 9.0 ft
- Major flooding from 13.0 ft
- Crests at major
- 0
- 12 above flood stage
- Most recent flood crest
- June 28, 2023
- 9.24 ft, minor flooding
Flood stages
The thresholds the National Weather Service uses for this gauge today, and how many listed crests reached each.
| Action stage | 7.0 | 8 | Jun 1, 2017 |
| Flood stage (minor) | 9.0 | 9 | Jun 28, 2023 |
| Moderate flood stage | 11.0 | 3 | May 16, 2015 |
| Major flood stage | 13.0 | 0 | — |
Every listed crest
46 crests from 1983 to 2023. Filled: at or above flood stage. Hover a crest for its date and stage.
Crests at or above flood stage, by decade
- These are the crests the local National Weather Service office lists for the gauge: the highest on record and recent crests. Lesser floods between them may be missing, so counts by decade are a floor.
- Categories use today's flood stages. Levees, dams and channel changes since a crest can make old and new stages not directly comparable.
Highest crests
| 1 | Sep 21, 2013 | 12.21 | +3.21 | Moderate |
| 2 | Jun 6, 1995 | 11.29 | +2.29 | Moderate |
| 3 | May 16, 2015 | 11.09 | +2.09 | Moderate |
| 4 | May 7, 1999 | 10.69 | +1.69 | Minor |
| 5 | Jun 19, 2015 | 10.48 | +1.48 | Minor |
| 6 | Jun 23, 2010 | 10.20 | +1.20 | Minor |
| 7 | Jul 6, 2002 | 9.74 | +0.74 | Minor |
| 8 | Feb 6, 2016 | 9.69 | +0.69 | Minor |
| 9 | Jun 16, 1997 | 9.39 | +0.39 | Minor |
| 10 | Jul 2, 1983 | 9.31 | +0.31 | Minor |
| 11 | Jun 28, 2023 | 9.24 | +0.24 | Minor |
| 12 | Jun 10, 2014 | 9.22 | +0.22 | Minor |
| 13 | Jul 22, 2011 | 8.85 | −0.15 | Action |
| 14 | Jun 15, 1986 | 8.24 | −0.76 | Action |
| 15 | May 21, 1984 | 8.08 | −0.92 | Action |
| 16 | Feb 25, 1989 | 8.02 | −0.98 | Action |
| 17 | May 4, 2016 | 7.68 | −1.32 | Action |
| 18 | Jun 1, 1987 | 7.47 | −1.53 | Action |
| 19 | Jun 13, 2009 | 7.47 | −1.53 | Action |
| 20 | Jun 1, 2017 | 7.02 | −1.98 | Action |
| 21 | Jan 9, 2018 | 6.97 | −2.03 | Below flood stage |
| 22 | May 24, 1988 | 6.95 | −2.05 | Below flood stage |
| 23 | Jun 16, 2005 | 6.88 | −2.12 | Below flood stage |
| 24 | Jan 30, 1993 | 6.82 | −2.18 | Below flood stage |
| 25 | Sep 19, 1996 | 6.70 | −2.30 | Below flood stage |
| 26 | Mar 11, 2019 | 6.67 | −2.33 | Below flood stage |
| 27 | Oct 9, 1984 | 6.56 | −2.44 | Below flood stage |
| 28 | Jun 10, 1998 | 6.41 | −2.59 | Below flood stage |
| 29 | May 10, 2001 | 6.41 | −2.59 | Below flood stage |
| 30 | Jun 20, 1991 | 6.20 | −2.80 | Below flood stage |
| 31 | Aug 31, 1992 | 6.18 | −2.82 | Below flood stage |
| 32 | Jun 28, 2019 | 5.92 | −3.08 | Below flood stage |
| 33 | Jan 1, 2000 | 5.89 | −3.11 | Below flood stage |
| 34 | Jun 5, 2007 | 5.85 | −3.15 | Below flood stage |
| 35 | Jun 11, 2021 | 5.85 | −3.15 | Below flood stage |
| 36 | Apr 4, 1990 | 5.75 | −3.25 | Below flood stage |
| 37 | Jan 22, 2012 | 5.46 | −3.54 | Below flood stage |
| 38 | Oct 1, 1993 | 5.27 | −3.73 | Below flood stage |
| 39 | Feb 14, 2012 | 5.06 | −3.94 | Below flood stage |
| 40 | May 25, 2018 | 5.06 | −3.94 | Below flood stage |
| 41 | Feb 2, 2020 | 4.90 | −4.10 | Below flood stage |
| 42 | Jan 16, 2022 | 4.72 | −4.28 | Below flood stage |
| 43 | Mar 1, 2022 | 4.30 | −4.70 | Below flood stage |
| 44 | Feb 14, 2004 | 3.77 | −5.23 | Below flood stage |
| 45 | May 10, 2003 | 3.68 | −5.32 | Below flood stage |
| 46 | Oct 12, 2005 | 3.57 | −5.43 | Below flood stage |
The worst floods along the South Platte River
For this gauge's highest crests, the other gauges on the South Platte River that crested above flood stage within a week.
September 21, 2013: 12.21 ft here, moderate flooding
- Fort MorganCO · Sep 15, 2013 · 25.73 ft · Major · its highest
- WeldonaCO · Sep 14, 2013 · 19.20 ft · Major · its highest
- AtwoodCO · Sep 15, 2013 · 15.52 ft · Major · its highest
- KerseyCO · Sep 14, 2013 · 15.09 ft · Major · its highest
- BalzacCO · Sep 15, 2013 · 13.71 ft · Major · its highest
- North PlatteNE · Sep 23, 2013 · 14.54 ft · Moderate · its highest
- CrookCO · Sep 17, 2013 · 10.13 ft · Moderate · its highest
- JulesburgCO · Sep 18, 2013 · 10.74 ft · Minor · its highest
June 6, 1995: 11.29 ft here, moderate flooding
May 16, 2015: 11.09 ft here, moderate flooding
- North PlatteNE · May 20, 2015 · 14.09 ft · Moderate
- KerseyCO · May 11, 2015 · 11.54 ft · Moderate
- WeldonaCO · May 12, 2015 · 10.87 ft · Minor
- BalzacCO · May 13, 2015 · 10.39 ft · Minor
Gauges on the South Platte River
Flood gauges sharing the river's name, linked within 80 miles of one another.
| Atwood | CO | 15.52 ft, Sep 15, 2013 | 1 |
| Denver | CO | 18.66 ft, Jun 17, 1965 | 1 |
| Fort Morgan | CO | 25.73 ft, Sep 15, 2013 | 1 |
| Henderson | CO | 17.67 ft, May 6, 1973 | 2 |
| North Platte | NE | 14.54 ft, Sep 23, 2013 | 0 |
| Roscoe this gauge | NE | 12.21 ft, Sep 21, 2013 | 0 |
| South Platte | CO | 11.20 ft, Jul 12, 1996 | 1 |
| Waterton | CO | 5.68 ft, Apr 23, 1942 | 0 |
| Cheesman Reservoir | CO | 13.40 ft, Apr 29, 1970 | 1 |
| Balzac | CO | 13.71 ft, Sep 15, 2013 | 1 |
| Crook | CO | 10.13 ft, Sep 17, 2013 | 0 |
| Julesburg | CO | 10.74 ft, Sep 18, 2013 | 0 |
| Kersey | CO | 15.09 ft, Sep 14, 2013 | 1 |
| Lake George | CO | 8.34 ft, Apr 28, 1970 | 0 |
| Weldona | CO | 19.20 ft, Sep 14, 2013 | 1 |
Other gauges in Keith County
| Keystone | 7.57 ft, Aug 10, 1983 | 0 |
Keith County: every hazard · River floods across the country · Nebraska
NOAA National Water Prediction Service, gauge RSON1, retrieved October 30, 2026. Stages in feet on the gauge's own datum, not elevation. Crests are as the National Weather Service lists them; preliminary values may be revised.