Sweetwater River near Sweetwater Station, WY

River level and flood forecast · Fremont County

Normal1.7 ftas of Mon 1:30 PM

The river is 5.3 ft below flood stage (7 ft).

Flow: 28 cubic feet per second (USGS).

The last 7 days and the forecast

0246810TueWedThuFriSatSunMonAction 6 ftFlood 7 ftModerate 8 ftMajor 9 ftNowObserved (ft)NWS forecast

NWS forecast issued Sun, Dec 31, 5 PM. Forecasts change as rain falls and as upstream water arrives.

Flood stages

Major flood stage9 ft
Moderate flood stage8 ft
Flood stage7 ft
Action stage6 ft
Record crest (April 24, 1980)12.4 ft

What floods at each level

From the National Weather Service, highest first.

  • 12.4 ftRecord stage and flow---5,750 cfs (4/24/1980).
  • 8 ftWater begins to flood low lying property and structures. Access to Willie Center/Sixth Crossing may be very limited due to high water.
  • 7 ftFlood stage. Water begins to encroach structures in low lying areas. Access to Willie Center/Sixth Crossing may be affected. Access points to downstream Split Rock Ranch may be under water.
  • 6 ftBankfull stage. Standing water all around Sweetwater Station and Sixth Crossing area. No structures are in danger of flooding. Downstream at Split Rock Ranch will have standing water in many areas.

Highest crests on record

  1. 12.4 ft — April 24, 1980
  2. 11.54 ft — April 25, 1983
  3. 9.78 ft — April 27, 1974
  4. 8.25 ft — June 3, 1986
  5. 7.93 ft — May 15, 1984

Recent crests: 3.32 ft (June 4, 2021) · 3.65 ft (June 9, 2020) · 4.71 ft (June 10, 2019) · 4.35 ft (May 29, 2018) · 7.38 ft (June 8, 2017)

Up and down the river, and nearby

Not an official source. River levels, forecasts, flood stages and impacts are from the National Weather Service (SWSW4); flow from the U.S. Geological Survey. Readings are provisional. In a flood, follow your local officials and the NWS at weather.gov.