Rivers in Kansas

Sappa Creek near Oberlin

Decatur County, KansasNWS OBNK1USGS 06845000Goodland office

Open the live map with the river flood outlook

Flood stages and impacts

CategoryStage
Major flood17.00 ft
Moderate flood14.00 ft
Minor flood11.00 ft
Action9.00 ft
  1. 27.50 ftThe creek will begin to overflow the southern end of the Highway 83 bridge.
  2. 24.50 ftThe creek will overflow the northern end of the Highway 83 bridge. Most of the roads to the north of the gage will become flooded.
  3. 24.00 ftWater will start hitting the bottom of the bridge.
  4. 21.30 ftWater reaches the street that is just to the northwest of the Highway 83 bridge.
  5. 17.50 ftThe access road to the southeast of the bridge and gage site will become inundated.
  6. 15.00 ftModerate flooding will occur in nearby agricultural fields and low lying areas.
  7. 11.00 ftWater spreads over agricultural fields and low lying areas with actual water depth in creek at about 6 feet.

Flood outlook

Chance of flooding, October to December

CategoryChance
Minor floodingUnder 5%
Moderate floodingUnder 5%
Major floodingUnder 5%

The three-month chances are the River Forecast Centers’ long-range flood outlook, issued October 22, 2025.

Crest history

62 crests on NOAA’s list since 1956.

#DateStage
1June 15, 199618.16 ft
2June 16, 199618.10 ft
3July 6, 195616.57 ft
4June 19, 197516.53 ft
5March 21, 196016.38 ft
6June 12, 196515.65 ft
7June 28, 195714.82 ft
8May 18, 195714.70 ft
9June 22, 197514.45 ft
10July 3, 198214.14 ft
11June 18, 195713.83 ft
12June 13, 198313.80 ft
13June 23, 199613.75 ft
14June 16, 195713.61 ft
15June 11, 196013.50 ft
16June 10, 196013.50 ft
17July 2, 195713.21 ft
18July 16, 197913.00 ft
19May 24, 200813.00 ft
20August 28, 196813.00 ft
21July 11, 196512.90 ft
22October 1, 196512.85 ft
23August 19, 195612.73 ft
24October 20, 196512.55 ft
25October 21, 196512.55 ft

Most recent crests

  • May 24, 2008: 13.00 ft
  • June 16, 2006: 7.98 ft
  • August 28, 2005: 8.14 ft
  • July 23, 2004: 8.72 ft
  • April 29, 2003: 10.48 ft
  • April 22, 2001: 10.57 ft
  • January 24, 2000: 6.62 ft
  • August 1, 1999: 11.72 ft
  • August 5, 1998: 11.82 ft
  • September 17, 1997: 7.48 ft

Nearby

Upstream, downstream and the gauges around this one.

What this means

Forecasts by the Missouri Basin River Forecast Center. Forecasts are issued as needed during times of high water, but are not routinely available. Stage measured manually and reported by river observer. No automated gauge on-site.

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.