Rivers in Wyoming

Henrys Fork at Manila

Sweetwater County, WyomingNWS HFMW4USGS 09229500Riverton office

Below flood stage
6.64ftStage

Observed Tue, Sep 22, 9:15 AM MDT

Flood stage
11.00 ft
Forecast crest
6.62 ftTue, Sep 22, 10:00 AM MDT
Record crest
12.56 ft2024

Open the live map with the river flood outlook

Flood stages and impacts

CategoryStage
Major flood23.00 ft
Moderate flood19.00 ft
Minor flood11.00 ft
Action10.50 ft
  1. 23.00 ftWATER OVERTOPS THE DECKING OF THE BRIDGE ON HIGHWAY 530.
  2. 19.00 ftMODERATE FLOOD STAGE. WATER REACHES THE LOWER SUB-STRUCTURE OF THE BRIDGE ON HIGHWAY 530.
  3. 11.00 ftFLOOD STAGE. MINOR FLOODING OF PASTURELAND UPSTREAM OF THE GAGE. APPROXIMATE MAXIMUM FLOW SINCE 1965. A FEW HOUSES DOWNSTREAM MAY HAVE STANDING WATER NEARBY.
  4. 10.50 ftBANKFULL STAGE/ACTION STAGE. RIVER BEGINS TO COVER FLOOD PLAIN.

Flood outlook

Chance of flooding, September to November

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

The three-month chances are the River Forecast Centers’ long-range flood outlook, issued September 25, 2025.

Crest history

89 crests on NOAA’s list since 1929.

#DateStage
1August 18, 202412.56 ft
2April 12, 202310.29 ft
3August 22, 20249.90 ft
4June 8, 19579.65 ft
5July 15, 19599.42 ft
6February 3, 20258.56 ft
7June 9, 19558.47 ft
8August 2, 20228.44 ft
9May 27, 19568.17 ft
10July 29, 19827.40 ft
11June 10, 19837.39 ft
12August 3, 19367.19 ft
13January 1, 20157.14 ft
14June 8, 20166.93 ft
15June 10, 19656.91 ft
16May 26, 19926.70 ft
17August 11, 19686.67 ft
18June 9, 20106.50 ft
19May 24, 19846.50 ft
20June 12, 19906.36 ft
21August 20, 20146.25 ft
22June 24, 19916.15 ft
23June 5, 19866.11 ft
24June 19, 19756.02 ft
25June 15, 20195.97 ft

Most recent crests

  • February 3, 2025: 8.56 ft
  • August 22, 2024: 9.90 ft
  • August 18, 2024: 12.56 ft
  • April 12, 2023: 10.29 ft
  • August 2, 2022: 8.44 ft
  • August 19, 2021: 5.07 ft
  • June 1, 2020: 5.56 ft
  • June 15, 2019: 5.97 ft
  • May 12, 2018: 5.89 ft
  • June 6, 2017: 5.47 ft

Nearby

Upstream, downstream and the gauges around this one.

What this means

Forecasts by the Colorado Basin River Forecast Center. Forecasts are issued routinely year-round. Gauge reading may be affected by ice. Forecast flows are unadjusted for ice.

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.