Blacks Fork near Little America, WY
River level and flood forecast · Sweetwater County
Normal3.1 ftas of Mon 2 PM
The river is 7.4 ft below flood stage (10.5 ft).
Forecast to hold near 3.1 ft through Sat, Oct 17, 3 PM.
Flow: 30 cubic feet per second (USGS).
The last 7 days and the forecast
NWS forecast issued Mon, Oct 12, 11:53 AM. Forecasts change as rain falls and as upstream water arrives.
Flood stages
| Moderate flood stage | 11.5 ft |
| Flood stage | 10.5 ft |
| Action stage | 9.5 ft |
| Record crest (March 12, 2017) | 12.53 ft |
What floods at each level
From the National Weather Service, highest first.
- 19 ftHighway 374 near gage will be covered in water. Still no affects to the interstate.
- 13 ftWater at base of Highway 374 Bridge.
- 12.53 ftRecord stage---due to rapid warmup and ice jams (3/12/2017).
- 10.9 ftRecord flow---9,980 cfs (6/13/1965).
- 10.5 ftFlood stage. More widespread flooding upstream at Granger. Left bank of the river overflows and causes high water at both upstream and downstream locations. Some minor flooding along Bonomo Ranch south of gage. I-80 bridge traffic not affected at any stage.
- 9.5 ftBankfull stage. County Road 95--100 to 200 yds from gage--may become impassable. Low lying flooding problems begin upstream at Granger.
Highest crests on record
- 12.53 ft — March 12, 2017
- 10.4 ft — June 19, 1998
- 10.38 ft — May 31, 2011
- 10.23 ft — March 11, 2007
- 10.16 ft — June 8, 1986
Recent crests: 8.86 ft (April 5, 2019) · 5.82 ft (May 13, 2018) · 12.53 ft (March 12, 2017) · 8.49 ft (June 14, 2016) · 8.9 ft (March 5, 2016)
Up and down the river, and nearby
Not an official source. River levels, forecasts, flood stages and impacts are from the National Weather Service (LTAW4); flow from the U.S. Geological Survey. Readings are provisional. In a flood, follow your local officials and the NWS at weather.gov.