Republican River at Guide Rock
Highest listed crest 15.47 ftFlood stage 12.5 ft41 crests since 1985
The Republican River at Guide Rock crested above flood stage 11 times among the 41 crests the National Weather Service lists from 1985 to 2025. The highest, 15.47 ft on July 19, 1993, was moderate flooding, 2.97 feet above flood stage. 3 other gauges on the Republican River crested above flood stage within a week of it.
The gauge
- Highest listed crest
- 15.47 ft
- July 19, 1993; 9,860 cubic feet per second
- Flood stage
- 12.5 ft
- Major flooding from 17.0 ft
- Crests at major
- 0
- 11 above flood stage
- Most recent flood crest
- May 23, 2020
- 12.82 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 | 10.5 | 9 | Mar 15, 2021 |
| Flood stage (minor) | 12.5 | 9 | May 23, 2020 |
| Moderate flood stage | 15.0 | 2 | Jul 11, 2019 |
| Major flood stage | 17.0 | 0 | — |
Every listed crest
41 crests from 1985 to 2025. 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 | Jul 19, 1993 | 15.47 | +2.97 | Moderate |
| 2 | Jul 11, 2019 | 15.08 | +2.58 | Moderate |
| 3 | May 28, 2019 | 14.85 | +2.35 | Minor |
| 4 | Aug 25, 2019 | 14.31 | +1.81 | Minor |
| 5 | May 25, 2008 | 14.06 | +1.56 | Minor |
| 6 | May 15, 1985 | 13.63 | +1.13 | Minor |
| 7 | Jul 13, 1992 | 13.38 | +0.88 | Minor |
| 8 | Jul 19, 2017 | 13.31 | +0.81 | Minor |
| 9 | May 25, 2011 | 12.95 | +0.45 | Minor |
| 10 | May 23, 2020 | 12.82 | +0.32 | Minor |
| 11 | Jun 13, 2010 | 12.51 | +0.01 | Minor |
| 12 | May 6, 2007 | 12.44 | −0.06 | Action |
| 13 | Jul 5, 2000 | 12.40 | −0.10 | Action |
| 14 | Jul 1, 1989 | 12.25 | −0.25 | Action |
| 15 | Jul 23, 1996 | 11.64 | −0.86 | Action |
| 16 | Mar 15, 2021 | 11.64 | −0.86 | Action |
| 17 | May 21, 1999 | 11.22 | −1.28 | Action |
| 18 | Jul 19, 1988 | 10.90 | −1.60 | Action |
| 19 | Aug 3, 1990 | 10.83 | −1.67 | Action |
| 20 | Mar 23, 1987 | 10.77 | −1.73 | Action |
| 21 | Jul 7, 2022 | 10.37 | −2.13 | Below flood stage |
| 22 | Sep 6, 1986 | 10.29 | −2.21 | Below flood stage |
| 23 | Mar 4, 1994 | 10.19 | −2.31 | Below flood stage |
| 24 | Jun 6, 2015 | 10.08 | −2.42 | Below flood stage |
| 25 | Mar 10, 2001 | 9.89 | −2.61 | Below flood stage |
| 26 | Jan 29, 2009 | 9.68 | −2.82 | Below flood stage |
| 27 | Aug 10, 2025 | 9.13 | −3.37 | Below flood stage |
| 28 | Jul 10, 2014 | 8.81 | −3.69 | Below flood stage |
| 29 | Sep 4, 2018 | 8.44 | −4.06 | Below flood stage |
| 30 | Apr 15, 2012 | 8.33 | −4.17 | Below flood stage |
| 31 | May 26, 2024 | 8.32 | −4.18 | Below flood stage |
| 32 | Apr 8, 1998 | 7.74 | −4.76 | Below flood stage |
| 33 | May 31, 1991 | 7.69 | −4.81 | Below flood stage |
| 34 | May 19, 2004 | 7.40 | −5.10 | Below flood stage |
| 35 | Jun 24, 2003 | 7.28 | −5.22 | Below flood stage |
| 36 | Aug 19, 2006 | 7.25 | −5.25 | Below flood stage |
| 37 | Jul 5, 2023 | 6.90 | −5.60 | Below flood stage |
| 38 | Aug 30, 2016 | 6.87 | −5.63 | Below flood stage |
| 39 | Dec 2, 2013 | 6.73 | −5.77 | Below flood stage |
| 40 | Jun 18, 2005 | 6.68 | −5.82 | Below flood stage |
| 41 | Aug 25, 2002 | 5.38 | −7.12 | Below flood stage |
The worst floods along the Republican River
For this gauge's highest crests, the other gauges on the Republican River that crested above flood stage within a week.
July 19, 1993: 15.47 ft here, moderate flooding
- Clay CenterKS · Jul 24, 1993 · 23.36 ft · Moderate
- ConcordiaKS · Jul 22, 1993 · 19.77 ft · Moderate
- ScandiaKS · Jul 21, 1993 · 13.85 ft · Moderate
July 11, 2019: 15.08 ft here, moderate flooding
May 28, 2019: 14.85 ft here, minor flooding
- RivertonNE · May 27, 2019 · 9.43 ft · Minor
Gauges on the Republican River
Flood gauges sharing the river's name, linked within 80 miles of one another.
| Cambridge | NE | 11.08 ft, May 28, 2023 | 0 |
| Clay Center | KS | 25.74 ft, Jun 3, 1935 | 0 |
| Concordia | KS | 23.00 ft, Jun 2, 1935 | 0 |
| Guide Rock this gauge | NE | 15.47 ft, Jul 19, 1993 | 0 |
| McCook | NE | 10.51 ft, May 26, 2023 | 0 |
| Riverton | NE | 10.86 ft, Jul 10, 2019 | 0 |
| Scandia | KS | 17.80 ft, Jun 2, 1935 | 3 |
| Stratton | NE | 13.21 ft, May 26, 2023 | 0 |
| Benkelman | NE | 13.10 ft, May 31, 1935 | 1 |
| Hardy | KS | 19.40 ft, Jun 2, 1935 | 2 |
| Orleans | NE | 14.00 ft, Jun 23, 1947 | 3 |
Other gauges in Webster County
| Amboy | 23.31 ft, Jul 4, 1959 | 0 |
Webster County: every hazard · River floods across the country · Nebraska
NOAA National Water Prediction Service, gauge GUIN1, 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.