Boiling River at Mammoth (YNP), WY

River level and flood forecast · Park County

Normal1.1 ftas of Mon 2:15 PM

Flow: 20 cubic feet per second (USGS).

The last 7 days and the forecast

0.911.11.21.3TueWedThuFriSatSunMonNowObserved (ft)NWS forecast

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

What floods at each level

From the National Weather Service, highest first.

  • 1.5 ftRECORD STAGE.

Highest crests on record

  1. 1.5 ft — May 17, 1993
  2. 1.47 ft — May 18, 2003
  3. 1.45 ft — May 20, 1995
  4. 1.43 ft — May 24, 1991
  5. 1.41 ft — May 24, 2008

Recent crests: 1.34 ft (May 25, 2014) · 1.2 ft (May 14, 2013) · 1.37 ft (May 19, 2010) · 1.4 ft (May 22, 2009) · 1.41 ft (May 24, 2008)

Up and down the river, and nearby

Not an official source. River levels, forecasts, flood stages and impacts are from the National Weather Service (BRMW4); flow from the U.S. Geological Survey. Readings are provisional. In a flood, follow your local officials and the NWS at weather.gov.