Henrys Fork at Manila, WY

River level and flood forecast · Sweetwater County

Normal7.0 ftas of Mon 2:15 PM

The river is 4.0 ft below flood stage (11 ft).

Forecast to fall to 6.5 ft by Sat, Oct 17, 3 PM.

Flow: 112 cubic feet per second (USGS).

The last 7 days and the forecast

0510152025TueThuSatMonWedFriAction 10.5 ftFlood 11 ftModerate 19 ftMajor 23 ftNowObserved (ft)NWS forecast

NWS forecast issued Mon, Oct 12, 11:53 AM. Forecasts change as rain falls and as upstream water arrives.

Flood stages

Major flood stage23 ft
Moderate flood stage19 ft
Flood stage11 ft
Action stage10.5 ft
Record crest (August 18, 2024)12.56 ft

What floods at each level

From the National Weather Service, highest first.

  • 23 ftWATER OVERTOPS THE DECKING OF THE BRIDGE ON HIGHWAY 530.
  • 19 ftMODERATE FLOOD STAGE. WATER REACHES THE LOWER SUB-STRUCTURE OF THE BRIDGE ON HIGHWAY 530.
  • 11 ftFLOOD STAGE. MINOR FLOODING OF PASTURELAND UPSTREAM OF THE GAGE. APPROXIMATE MAXIMUM FLOW SINCE 1965. A FEW HOUSES DOWNSTREAM MAY HAVE STANDING WATER NEARBY.
  • 10.5 ftBANKFULL STAGE/ACTION STAGE. RIVER BEGINS TO COVER FLOOD PLAIN.

Highest crests on record

  1. 12.56 ft — August 18, 2024
  2. 10.29 ft — April 12, 2023
  3. 9.9 ft — August 22, 2024
  4. 8.56 ft — February 3, 2025
  5. 8.44 ft — August 2, 2022

Recent crests: 8.56 ft (February 3, 2025) · 9.9 ft (August 22, 2024) · 12.56 ft (August 18, 2024) · 10.29 ft (April 12, 2023) · 8.44 ft (August 2, 2022)

Up and down the river, and nearby

Not an official source. River levels, forecasts, flood stages and impacts are from the National Weather Service (HFMW4); flow from the U.S. Geological Survey. Readings are provisional. In a flood, follow your local officials and the NWS at weather.gov.